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6-68453-02

Advanced Reporting for DXi

User’s Guide

Advanced Reporting for DXi User’s Guide ii

Advanced Reporting for DXi User’s Guide, 6-68453-02, August 2017, Product of USA.

Quantum Corporation provides this publication “as is” without warranty of any kind, either express or implied, including but not limited to the implied warranties of merchantability or fitness for a particular purpose. Quantum Corporation may revise this publication from time to time without notice.

COPYRIGHT STATEMENT

© 2017 Quantum Corporation. All rights reserved.

Your right to copy this manual is limited by copyright law. Making copies or adaptations without prior written authorization of Quantum Corporation is prohibited by law and constitutes a punishable violation of the law.

TRADEMARK STATEMENT

Artico, Be Certain (and the Q brackets design), DLT, DXi, DXi Accent, DXi V1000, DXi V2000, DXi V4000, FlexTier, GoVault, Lattus, NDX, the Q logo, the Q Quantum logo, Q-Cloud, Quantum (and the Q brackets design), the Quantum logo, Quantum Be Certain (and the Q brackets design), Quantum Vision, Scalar, StorageCare, StorNext, SuperLoader, Symform, the Symform logo (and design), vmPRO, and Xcellis are either registered trademarks or trademarks of Quantum Corporation and its affiliates in the United States and/or other countries. All other trademarks are the property of their respective owners.

Products mentioned herein are for identification purposes only and may be registered trademarks or trademarks of their respective companies. All other brand names or trademarks are the property of their respective owners.

Quantum specifications are subject to change.

Contents

Preface vi

Chapter 1: About Advanced Reporting 1About Advanced Reporting for DXi 1

Advanced Reporting Logging Database 4

Date And Time Settings for Advanced Reporting 5

Chapter 2: Navigation 7The Advanced Reporting Console 7

Logging On and Off Advanced Reporting 8

Advanced Reporting Features 10

Working with Advanced Reporting Time Ranges 13

Advanced Reporting Graph Features 17

Tips for Interpreting Performance Data 21

Chapter 3: Reports 24About the Reports 25

Overview Report 27

Data Volume Overview Graph 28

Advanced Reporting for DXi User’s Guide iii

Contents

Advanced Reporting for DXi User’s Guide iv

Reduction Ratio Graph 29

Ethernet Activity Graph 31

Network Activity Graph 33

Fibre Channel Activity Graph 34

Capacity Report 36

Disk Usage Graph 36

Before Reduction vs. After Reduction Graph 37

After Reduction Vs. Unique Data Found Graph 38

Capacity Detail Report 39

Before Reduction, After Reduction, and Unique Data Found Graphs 39

Allocated Disk Space Graph 41

Data Not Intended for Deduplication Graph 42

Capacity Delta – Bytes/H and Bytes/S Reports 43

Combined – Delta in Bytes/H and Bytes/S Graphs 43

Before Reduction, After Reduction, and Unique Data Found Graphs (Delta in Bytes/H and Bytes/S) 44

Allocated Disk Space – Delta in Bytes/H or Bytes/S 46

Data Reduction Report 47

Deduplication Ratio And Compression Ratio Graphs 48

CPU Load Report 49

System Load Average Graph 49

CPU Stats in % Graph 50

Ethernet I/O Report 51

Ethn Activity Graph 51

Network I/O Report 52

Virtual Network Activity Graph 53

Fibre Channel I/O Report 53

FCn Activity Graph 53

OST Statistics Report 54

Contents

Advanced Reporting for DXi User’s Guide v

OST Statistics – Accent Graph 56

OST Statistics – Ethernet Graph 57

OST Statistics – Accelerator Graphs 58

OST Accent or Accelerator Node n Graph 61

Ingest and Delete Report 62

Ingest and Deletions Graphs 62

Space Reclamation Report 63

Space Reclamation Progress Graph 64

Space Reclamation Bytes Graph 65

Space Reclamation/Compaction Graph 66

System Load Report 67

InlineThroughput Report 67

Deduplicated Data Graph 67

Non-Deduplicated Data Graph 68

Per Share Ingest Reports 69

Exporting a Chargeback Ingest File 71

Ingest (Chargeback) – Capacity Graphs 76

Ingest (Chargeback) – Ingest Graphs 77

Preface

This manual introduces the Quantum Advanced Reporting for DXi and contains the following chapters:

l About Advanced Reporting

l About Advanced Reporting Navigation

l About the Reports in Advanced Reporting

AudienceThis manual is written for Advanced Reporting for DXi operators, system administrators, and field service engineers.

Note: It is useful for the audience to have a basic understanding of UNIX® and backup/recovery systems.

Notational ConventionsThis manual uses the following conventions:

Convention Example

User input is shown in bold monospace font. ./DARTinstall

Advanced Reporting for DXi User’s Guide vi

Preface

Advanced Reporting for DXi User’s Guide vii

Convention Example

Computer output and command line examples are shown in monospace font.

./DARTinstall

User input variables are enclosed in angle brackets. http://<ip_address>/cgi-bin/stats

For UNIX and Linux commands, the command prompt is implied. ./DARTinstall

is the same as

# ./DARTinstall

File and directory names, menu commands, button names, and window names are shown in bold font.

/data/upload

Menu names separated by arrows indicate a sequence of menus to be navigated.

Utilities > Firmware

The following formats indicate important information:

Note: Note emphasizes important information related to the main topic.

Caution: Caution indicates potential hazards to equipment or data.

WARNING: Warning indicates potential hazards to personal safety.

l Right side of the system - Refers to the right side as you face the component being described.

l Left side of the system - Refers to the left side as you face the component being described.

l Data sizes are reported in base 10 (decimal) rather than base 2 (binary). For example:

10,995, 116,277,769 Bytes are reported as 11.0 TB (decimal/1000). In binary, this value is 10 TiB (binary/1024).

Product Safety StatementsQuantum will not be held liable for damage arising from unauthorized use of the product. The user assumes all risk in this aspect.

This unit is engineered and manufactured to meet all safety and regulatory requirements. Be aware that improper use may result in bodily injury, damage to the equipment, or interference with other equipment.

Preface

Advanced Reporting for DXi User’s Guide viii

Related DocumentsThe following Quantum documents are also available for Advanced Reporting for DXi :

Document Number

Document Title Document Description

6-68166 Quantum DXi-Series Release Notes

Describes information specific to the current release of DXi.

For the most up to date information on Advanced Reporting for DXi , see:

http://www.quantum.com/serviceandsupport/get-help/index.aspx#contact-support


Preface

Advanced Reporting for DXi User’s Guide ix

ContactsFor information about contacting Quantum, including Quantum office locations, go to:

http://www.quantum.com/aboutus/contactus/index.aspx

CommentsTo provide comments or feedback about this document, or about other Quantum technical publications, send e-mail to:

[email protected]

Getting More Information or HelpStorageCare™, Quantum’s comprehensive service approach, leverages advanced data access and diagnostics technologies with cross-environment, multi-vendor expertise to resolve backup issues faster and at lower cost.

Accelerate service issue resolution with these exclusive Quantum StorageCare services:

l Service and Support Website - Register products, license software, browse Quantum Learning courses, check backup software and operating system support, and locate manuals, FAQs, firmware downloads, product updates and more in one convenient location. Get started at:


l eSupport - Submit online service requests, update contact information, add attachments, and receive status updates via email. Online Service accounts are free from Quantum. That account can also be used to access Quantum’s Knowledge Base, a comprehensive repository of product support information. Get started at:

http://www.quantum.com/customercenter/

For further assistance, or for training opportunities, contact the Quantum Customer Support Center:

Region Support Contact

North America 1-800-284-5101 (toll free)+1-720-249-5700

EMEA +800-7826-8888 (toll free)

+49 6131 324 185

http://www.quantum.com/aboutus/contactus/index.aspx

mailto:[email protected]


http://www.quantum.com/customercenter/

Preface

Advanced Reporting for DXi User’s Guide x

Region Support Contact

Asia Pacific +800-7826-8887 (toll free)+603-7953-3010

For worldwide support:


Worldwide End-User Product WarrantyFor more information on the Quantum Worldwide End-User Standard Limited Product Warranty:

http://www.quantum.com/serviceandsupport/warrantyinformation/index.aspx


http://www.quantum.com/serviceandsupport/warrantyinformation/index.aspx

Chapter 1: About Advanced Reporting

This chapter contains the following topics:

About Advanced Reporting for DXi 1

Advanced Reporting Logging Database 4

Date And Time Settings for Advanced Reporting 5

About Advanced Reporting for DXi Advanced Reporting for DXi combines comprehensive performance data logging with powerful visual reporting and analysis tools, which you can use both to identify potential problems with your DXi appliance and optimize your system's operation.

Guide Examples

Because Advanced Reporting is used with both DXi and Q-Cloud Protect, some of the content provided here will pertain to only one system (DXi or Q-Cloud Protect). For details about the system you are running, see the documentation specific to that system.

Advanced Reporting for DXi User’s Guide 1



Figure 1: Advanced Reporting for DXi Virtual Console – Overview Report

Virtual Console ExtensionAdvanced Reporting is an extension to your DXi appliance's virtual console. With Advanced Reporting, you can view an array of performance statistics for your appliance, and see how those statistics change over time. Use this information to identify trends or to determine when a problem began.

By seeing how various operations affect performance, you can use Advanced Reporting to optimize your network ecosystem and business procedures for backup, recovery, and replication.

On Demand ReportsAdvanced Reporting runs on the DXi appliance, continually working in the background to log performance data. You can access this data on the Advanced Reporting virtual console. Reports are available on demand, meaning that you can check up-to-the-minute system status or view data for any time period after data logging began.



Use the reports in Advanced Reporting to access applicable performance and system statistics, such as the following:

l Capacity utilization

l Ethernet and Fibre Channel activity

l CPU load

l Data deduplication

l Space reclamation activities

l OST backup tasks

l Per Share and Partition (Chargeback) information

Zoom FeatureYou can use the report tools to zoom in or out on a specific time period. All graphs within a report display data for the same time period, allowing you to compare performance data between graphs in the same report or between different reports.

Example

You want to view information about used storage space for the current week. Display the Capacity report and zoom into the current week. Compare how storage has been allocated for the current week using the report's graphs.

Historical DataAdvanced Reporting maintains logged data for a maximum of six years. Using this feature, you can compare current system performance to past system performance to determine what changes impact your appliance.

Example

You can view the effects of new network configurations on your appliance by comparing its current statistical reports to past ones. You can then determine which configurations increase or decrease performance, and use this information to optimally configure your appliance.

Usage ScenariosDXi storage presentations are optimized for backup usage rather than for file sharing. Advanced Reporting provides the best results when you take advantage of the appliance's preferred implementation.

Backup application usage is typically characterized by the following:

Chapter 1: About Advanced ReportingAdvanced Reporting Logging Database


l Aggregated name spaces and file contents

l Limited direct, active file access

l Limited browsing, scanning, or viewing of information

l Limited metadata manipulation (including rename)

If you use the appliance for file sharing, you should test the sharing process to ensure acceptable behavior with respect to functionality, performance, replication, and recovery.

Note: We do not recommend using Backup Exec with Granular Recovery Technology (GRT) over a CIFS protocol. GRT frequently needs to overwrite portions of and append data to existing files. This process is inconsistent with the DXi usage scenarios. Instead, we recommend using OpenStorage (OST).

Advanced Reporting Logging DatabaseAdvanced Reporting records performance data in its logging database. The database resides in the DXi appliance where Advanced Reporting runs.

Round Robin DatabaseAdvanced Reporting uses a round robin style for its logging database, allowing it to maintain a small, fixed size. When new logging data is added to the database, older data is overwritten, as needed, to maintain the database's fixed size. As a result, the logging database has a negligible impact on the appliance's storage capacity.

Data ResolutionThe logging database records performance data at two-second intervals. Advanced Reporting aggregates this data over time to maintain different resolutions for different time periods.

l The database resolution is finer — or more granular — for recent events.

l The database resolution becomes coarser — or less granular — as you go back in time.

The following table shows the resolutions that are maintained in the logging database for each time period.

Time Period Database Resolution

Data logged within the last 7 days 2 seconds

Data older than 7 days 60 seconds

Chapter 1: About Advanced ReportingDate And Time Settings for Advanced Reporting


Performance ImpactThe logging of data performed by Advanced Reporting has a negligible impact on the operation and performance of DXi.

l Advanced Reporting captures most data once every two seconds, with a typical loop time of only 2 ms per capture.

l Advanced Reporting uses no more than 2 GB of total disk capacity for the logging database.

l Disk contention between Advanced Reporting and other system processes is rare. If it occurs, Advanced Reporting is given a lower priority than other system needs.

Date And Time Settings for Advanced ReportingBecause data in the Advanced Reporting database is time sensitive, you must correctly set the time and date on the DXi appliance before you use Advanced Reporting. To make sure the time and date are always correct, configure the appliance to use a Network Time Protocol (NTP) server. For help with this task, see the DXiUser's Guide.

Note: Not all Windows time servers offer NTP services. If a time server does not support the NTP protocol, you cannot use it as a time source for the appliance. In this case, a third party NTP application for Windows should work correctly.

If the date and time are not set correctly on your appliance before you use Advanced Reporting, the following two issues can occur.

Correlating Data to EventsIf the date and time are not correct on the appliance, it might be difficult to correlate Advanced Reporting data with replication activity, or to associate problems with events in the customer ecosystem.

Example

A report shows a problem occurred at 6:00 p.m. The time on the appliance is not set correctly, though. So, although the report shows the problem occurred at 6:00 p.m., the actual time the problem occurred was at 4:00 p.m. when the network became congested. Due to the time error, it may not apparent that the problem is associated with the network congestion.

Resetting the Date and TimeIf you set the date or time on the appliance forward and then switch it back, the Advanced Reporting tool will

Chapter 1: About Advanced ReportingDate And Time Settings for Advanced Reporting


not record any data between the two time points, even if you have reset the appliance to the current time. This occurrence happens because the recording tool does not support data going backwards. As soon as you set a future time point, the tool sees that time point as current. The tool will not recognize data until the future time is met.

Example

If you set the date forward by a day and then reset it back to the current day, the recording tool will not record new data until the future time (the next day in this example) is reached. From that point forward, data is recorded.

Chapter 2: Navigation


The Advanced Reporting Console 7

Logging On and Off Advanced Reporting 8

Advanced Reporting Features 10

Working with Advanced Reporting Time Ranges 13

Advanced Reporting Graph Features 17

Tips for Interpreting Performance Data 21

The Advanced Reporting ConsoleThe Advanced Reporting console provides powerful visual reporting and analysis tools, which you can use to identify potential problems with your DXi appliance and optimize its operation.

Access Advanced Reporting through your DXi virtual console, either by logging on to your appliance or by navigating toAdvanced Reporting using the appliance's IP address. Once you are logged on to Advanced Reporting, you can access various reports and associated graphs, control the information that is displayed, and change the time range for which data is reported.

Compare data displayed on different graphs, within the same report or between reports, to look for patterns and trends that can help you determine relationships between events. Use these discovered relationships to understand when your system is performing its best and to troubleshoot problems.


Chapter 2: NavigationLogging On and Off Advanced Reporting


Supported Web BrowsersWeb browser software is not included with the Advanced Reporting. You must obtain and install it separately. The Advanced Reporting remote management console supports the following Web browsers:

l Mozilla Firefox 36 or later.

l Google Chrome 40 or later.

l Microsoft Internet Explorer 11 or later.

You must also install the correct version of the Adobe Flash Player plug-in for your operating system and browser. Advanced Reporting requires Adobe Flash Player version 10.x or higher. To download and install Flash Player, go to http://www.adobe.com.

Note: Advanced Reporting does not support the 64-bit version of the Flash Player plug-in on Linux. Instead, use the 32-bit Flash Player plug-in and a 32-bit browser.

Logging On and Off Advanced ReportingYou can easily access Advanced Reporting from the DXi virtual console. You can also navigate directly to Advanced Reporting from a supported Web browser.

ConsiderationsConsider the following before logging on to Advanced Reporting.

Login Types

If you are directly navigating to Advanced Reporting from a supported Web browser, you will need to choose a system user type with which to log on:

l Monitors can view information on the virtual console but cannot make changes.

l Administrators can view and change information on the virtual console.

l Service users can view information on the virtual console but cannot make changes.

In Advanced Reporting, monitors, administrators, and service users have the same functionality. Keep in mind, though, that when you log on to Advanced Reporting, you are also logging on to the virtual console. It is important to log on to Advanced Reporting with the appropriate user account.

Log on from Your Virtual Console

If you previously logged on to the virtual console as a monitor, administrator, or service users, and the

http://www.adobe.com/

Chapter 2: NavigationLogging On and Off Advanced Reporting


session has not timed out, you do not need to log on separately to Advanced Reporting. Simply click the Advanced Reporting button located in the left column of the interface.

Passwords

Passwords for logging on to Advanced Reporting are the same passwords used to log on to the virtual console. For more information about passwords, see the DXi documentation.

Log on to Advanced Reporting from your appliance's virtual console 1. Log on to your DXi virtual console.

For more information, see the DXi documentation.

2. Click the Advanced Reporting button located below the menus, on the left side of the interface.

The Advanced Reporting console displays.

Log on to Advanced Reporting from a Web browser 1. From a Web browser, navigate to the following address to display the Login window: http://<system_

IP_address>/reports/.

Figure 2: Login Window

2. In the Login Type field, select the appropriate user type.

3. In the Password field, enter the password associated with the selected user type.

4. Click Login to display the Advanced Reporting console.

Log off from Advanced Reporting 1. In the upper right corner of the console, click the Administrator button.

Chapter 2: NavigationAdvanced Reporting Features


2. From the displayed options, click Log Off to end your Advanced Reporting session.

Advanced Reporting FeaturesThe Advanced Reporting console displays performance graphs for the currently selected report. When you first log on to the console, the Overview report displays. By default, the report shows data for the last 7 days. Review the following features of the Advanced Reporting console.

Figure 3: Advanced Reporting for DXi Console

1 – Menu 4 – Timeline Bar 7 – Report Graphs

2 – Toolbar 5 – Time Range Bar 8 – Home Page, Help, and Log Off Buttons

3 – System Information Bar 6 – View Controls 9 – URL Reference

MenuThe Advanced Reporting menu includes the following options.



Menu Description

Reports Use to select a report for which to view logged data.

View Use to show or hide the Toolbar, System Information bar, Timeline bar, Time Range bar, or View controls.By default, all items are displayed, with the exception of the Timeline bar.

Actions Use to change the graph display.

l Update – Updates the report's graphs with the latest logging information.

l Scroll Up – Scrolls the graph order up by one graph.

l Scroll Down – Scrolls the graph order down by one graph.

l Show All Legends – Shows the title and legend on all report graphs.

l Hide All Legends – Hides the title and legend on all report graphs.

About Use to display the version and license information for Advanced Reporting.

ToolbarThe Advanced Reporting Toolbar includes the following options.

Note: Click the arrow to the right of the Toolbar to hide it. Click the arrow again to redisplay the Toolbar.

Options Description

Buttons Shows or hides the Time Range bar.

Info Shows or hides the System Information bar.

Span Shows or hides the Timeline.

Controls Shows or hides the View controls.

Update Updates the report's graphs with the latest logging data.

Up Scrolls the graph order up by one graph.

Down Scrolls the graph order down by one graph.

Show All Shows the title and legend on all report graphs.

Hide All Hides the title and legend on all report graphs.



Options Description

DB Export Exports the statistical database — data from which graphs are generated — to a file for offline viewing. To export the statistical database

a. Click DB Export to export the database.

When the export is complete, the DB Export Complete dialog box displays.

b. Follow one of the displayed pathways to access the export file.

User Menu

Displays the user type currently logged on to Advanced Reporting.To log off

a. Click the User Menu.

b. Click Log Off.

System Information BarThe System Information bar displays the following information.

Field Description

Model The model of the appliance.

Serial Number The serial number of the appliance.

Software Version The version of software running on the appliance.

Date and Time The current date, time, and time zone of the appliance.

Timeline and Time Range BarsThe Timeline and Time Range bars allow you to control the span of time on which data is reported. For more information, see Working with Advanced Reporting Time Ranges on the next page.

View ControlsThe View controls allow you to navigate through the report's graphs, and to select the information displayed for each graph.

Button Description

Scrolls the graph order up by one graph.

Chapter 2: NavigationWorking with Advanced Reporting Time Ranges


Button Description

Shows the title and legend on all report graphs.

Hides the title and legend on all report graphs.

Scrolls the graph order down by one graph.

Report GraphsEach report in Advanced Reporting is made of one or more graphs. These graphs display performance data for the selected time range. For more information, see Advanced Reporting Features on page 10.

Home Page, Help, and Log Off ButtonsUse the buttons located at the top right corner of the console to do the following:

Button Description

Navigate to the DXi appliance's Home page.

Access Help for Advanced Reporting.

Log off from Advanced Reporting.

URL ReferenceA link that provides a URL reference to the current report displays at the bottom of every Report window. You can copy and send this URL to a third-party, such as a coworker, who needs to access the report's information.

Working with Advanced Reporting Time RangesUse the Timeline bar, Time Range bar, or Dynamic Zoom feature in Advanced Reporting to select the time range for which data is displayed. By default, Advanced Reporting displays data for the most recent 7 days of logging.



Viewing TipsReview the following tips to understand how time-range changes affect your view.

Resolution

When you change the time range, Advanced Reporting automatically adjusts the resolution of performance data.

l The resolution is finer — more granular — for shorter time ranges.

l The resolution is coarser — less granular — for longer time ranges.

Preset Ranges

When you apply a preset time range, Advanced Reporting resizes the time range while maintaining the center of the time range.

Example

If you are currently viewing a one-week time range that goes from Sunday to Saturday, applying the 1d preset displays data for Wednesday, which is at the center of the weekly range.

Scale

Regardless of the time range being graphed, Advanced Reporting scales all logged data to use the entire width of each graph.

Timeline BarUse the Timeline bar to select preset time ranges, move the time range forward or backward in time, or shrink or expand the time range.

Figure 4: Timeline Bar

1 – Preset Time Ranges 2 – Left Handle 3 – Time Line 4 – Right Handle 5 – Date/ Time of Range

Use the Timeline bar

1. Display the report for which to view data.



2. Adjust the time range for which to display data by doing any of the following:

Assign a preset time range

a. Click any of the preset time ranges located at the top of the Timeline bar.

b. Double-click the Time Line to apply the preset range.

Move the time range forward or backward in time

a. Drag the Time Line backward or forward.

b. Double-click the Time Line to apply the new range.

Shrink or expand the time range

a. Drag the Right Handle and Left Handle to the desired time range.

b. Double-click the Time Line to apply the new range.

Click reset range on the Time Range bar to adjust the time range to display the most recent seven days of logging.

Time Range BarUse the Time Range bar to select the numeric base for the data on which to report, adjust the start and end times of the time range, assign a preset time range, or adjust the time range forward or backward in time.

Figure 5: Time Range Bar

1 – Forward and Backward Navigation Buttons 4 – Preset Time Range Buttons 7 – Base Drop-Down List

2 – Start and End Time Adjustment Fields 5 – Preset Zoom Range Buttons 8 – Reload Button

3 – Total Time Being Reported 6 – Reset Range Button

Use the Time Range bar


2. In the Base drop-down list, select the numeric base for the data on which to report:

1000 Bytes/KBs

Tape drives, tape cartridges, and disk drives report capacities in units of 1000 bytes per kilobyte.

1024 Bytes/KBs

Backup applications typically report summaries in units of 1024 bytes per kilobyte.



3. Adjust the time range by doing any of the following:

Adjust start and end times

a. In the Start and End fields, enter a starting and ending date and time to define the time range to display.

b. Click reload to redisplay the graphs with the new time range.

Assign a preset time rangeClick any of the following Preset Time Range buttons to quickly display data for a different time range:

l 1h – 1 hour

l 4h – 4 hours

l 12h – 12 hours

l 1d – 1 day

l 1w – 1 week

l 1m – 1 month

l 1y – 1 year

Assign a preset zoom factorClick any of the following to zoom in or out on the graphs by a fixed factor:

l x0.25 – Zooms in by a quarter of the currently displayed time range.

l x0.5 – Zooms in by half of the currently displayed time range.

l x2.0 – Zooms out by 2 times the currently displayed time range.

l x4.0 – Zooms out by 4 times the currently displayed time range.

Adjust the time range forward or backwardClick the Backward or Forward Navigation buttons to move the time range by any of the following amounts:

l <<< or >>> Moves the time range backward or forward an amount equal to the current time range.

l << or >> Moves the time range backward or forward an amount equal to one half of the current time range.

l < or > Moves the time range backward or forward an amount equal to one quarter of the current time range.

Click reset range to adjust the time range to display the most recent seven days of logging.

Dynamic Zoom FeatureUse the Dynamic Zoom feature to select a part of the graph on which to see more detail.

Chapter 2: NavigationAdvanced Reporting Graph Features


Figure 6: Dynamic Zoom Feature

1 – Clear Button 2 – Left Handle 3 – Right Handle 4 – Zoom Area

Use the Dynamic Zoom feature


2. Click on the spot of the graph on which to zoom to display selection handles.

3. Drag the Left Handle and Right Handle to adjust the area of the graph on which to zoom.

4. Double-click the selected area on which to zoom.

5. Click Clear to reset the graph to its original time range.

Advanced Reporting Graph FeaturesIn Advanced Reporting, each report is made up of one or more graphs. Each graph displays a specific type of performance data for the selected time range, as applicable, such as the Data Volume Overview, Reduction Ratio, Fibre Channel Activity, and Ethernet Activity graphs in the Overview report.

Although each graph in Advanced Reporting displays a specific type of performance data, many components are shared between graphs. Review the following to gain a better understanding of graph components — both shared and unique.

Horizontal AxisThe horizontal axis of each graph represents time, and displays the selected time range.

Vertical AxisThe vertical axis can vary between graphs. Often the vertical axis represents capacity or data amount, or a calculated value such as ratio, average, or percentage.



LegendEach graph contains a color-coded legend. Use the legend to help in reading and interpreting the data displayed on the graph.

For some graphs, the legend contains first, last, and delta values for variables within the graph.

Values Descriptions

first The value of the variable at the start of the time range.

last The value of the variable at the end of the time range.

delta The difference between the first and last values over the time range.

Equation: last - first = delta

Note: If a graph displays a value as nan — not a number — Advanced Reporting could not calculate the value.

GapsA white gap in a graph indicates an absence of data logging for a period of time. This absence can occur for the following reasons:

l A system reboot occurred.

l The system was busy.

l Logging was turned off.

Zero LineGraphs include a zero line to show when data is being written to or read from the DXi appliance.

l Positive values — above the zero line — represent data being written to the appliance.

l Negative values — below the zero line — represent data being read from the appliance.



Figure 7: Zero Line Example

1 – Zero Line2 – Data written to the appliance3 – Data read from the appliance

Stacked and Layered GraphsA single graph can display multiple variables, allowing you to view the interaction between them. Advanced Reporting uses two methods for placing multiple variables on the same graph.

Layered Graphs

Layered graphs compare related variables by superimposing data for two or more variables. Each variable is assigned a different color so you can easily distinguish between the variables.

Example

The Before Reduction vs. After Reduction graph depicts the data for the Before Reduction, After Reduction, and Unique Data variables using different colors. Layering these related variables lets you easily compare the amount of each type of data stored on the appliance.

Figure 8: Layered Graph Example



Stacked Graphs

Stacked graphs display aggregate performance by adding the values for two or more variables to arrive at a total value. Each variable is assigned a different color so you can easily distinguish between the variables.

Example

The Ethernet Activity graph adds the values for each Ethernet port to reach a total value for each point in the time range. Each of the ports is assigned a different color so you can see the contribution it makes to the total value.

Figure 9: Stacked Graph Example

Additional FeaturesThe following additional features are shared among all graphs:

Feature Description

Drag and Drop

To change the order of the graphs within a report, drag a graph by its title bar and move it above or below another graph.

Minimize To minimize a graph, click .

To restore the graph to its full size, click the graph's minimized title bar (located near the bottom of the window).

Export To export a JPG or PNG image of the graph, click .

Chapter 2: NavigationTips for Interpreting Performance Data


Feature Description

Show/Hide To display or hide a graph's title and legend, click .

Note: Graphs are restored to their default appearance the next time you log on to Advanced Reporting.

Tips for Interpreting Performance DataAdvanced Reporting allows you to compare different types of performance data for the same time range. This comparison lets you look for patterns and trends to determine relationships between events. Review the following tips to help you interpret performance data.

Using the Time Sync to Correlate Information Across GraphsWhen you view a report, try to correlate information between the report's graphs. Remember that all graphs in a report display the same time range and always remain in sync. So an event that happens in the center of one graph can be correlated with an event that happens in the center of another. This time sync applies to graphs in the same report, as well as to graphs in different reports.

In other words, if you can draw a straight vertical line between events in two graphs, the events happened at the same time.

Figure 10: Time Sync Correlation Example

While this correlation does not mean that one event caused the other, if you consistently see that events in one graph happen at the same time as events in another graph, there is a strong possibility that the two types of events are related.



Understanding Time ResolutionAdvanced Reporting displays graphs with 960 data points (pixels) along the horizontal axis. Keep in mind, though, that the logging database usually contains more than 960 data points for the selected time range.

To convert the resolution of the database to the resolution of the graph, Advanced Reporting uses aggregation. In many cases, each pixel in the graph is a combination — or an aggregate — of multiple data points in the database. Depending on how many data points are aggregated to create each pixel in the graph, the resulting value can change, as described below.

Example

Consider a transfer on the Ethernet Activity graph that lasts for 6 seconds.

In Example 1 below, the graph shows the transfer within a time range of 32 minutes (1,920 seconds). In this case, each pixel in the graph represents 2 seconds of time. As a result, the transfer takes up 3 pixels in the graph (3 two-second intervals) and displays a peak amplitude of 2.1 MB/second.

Figure 11: Example 1

In Example 2, the graph shows the transfer within a time range of 128 minutes (7,680 seconds). In this case, each pixel in the graph represents 8 seconds of time. Even though the transfer is only 6 seconds long, it cannot take up to less than 1 pixel in the graph. As a result, the transfer amount is averaged over 8 seconds, resulting in a lower peak amplitude of 0.9 MB/second.

Figure 12: Example 2

It's important to note that the only difference between the two examples is the time resolution. The underlying data did not change. The difference in amplitude is due to the different number of data points that



Advanced Reporting aggregates when calculating the value for each pixel in the graph. Be aware of this effect as you work with graphs and time ranges.

Note: Advanced Reporting always uses the finest resolution of data available in the database, with finer-grained data being available for more recent time ranges.

Selecting the BaseDifferent systems report data usage in different ways. Advanced Reporting reports data using one of the following base units:

Base Unit Description

Base 1000 Tape drives, tape cartridges, and disk drives typically report capacities in units of 1000.

Base 1024 Backup appliances typically report summaries in units of 1024.

The difference between the two base units results in a disparity of over 10% in reported data sizes at the terabyte (TB) level.

Example

27.3 tebibytes (TiB) reported at base 1024 become 30 TB when reported at base 1000.

Advanced Reporting automatically selects the appropriate base unit for each DXi model so that numeric results most closely match the value displayed in the appliance's virtual console. You can change the base in which data is displayed in the Base field of the Time Range bar. See Working with Advanced Reporting Time Ranges on page 13.

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About the Reports 25

Overview Report 27

Capacity Report 36

Capacity Detail Report 39

Capacity Delta – Bytes/H and Bytes/S Reports 43

Data Reduction Report 47

CPU Load Report 49

Ethernet I/O Report 51

Network I/O Report 52

Fibre Channel I/O Report 53

OST Statistics Report 54

Ingest and Delete Report 62

Space Reclamation Report 63

System Load Report 67

InlineThroughput Report 67

Per Share Ingest Reports 69


Chapter 3: Reports


About the ReportsEach report in Advanced Reporting is comprised of one or more graphs. Some graphs appear in more than one report. The following table lists the reports and their associated graphs available in Advanced Reporting.

Report Access

Depending on the user authentication level, platform, or software version that you are using, some of the reports may not be available.

Report Graphs

Overview Report on page 27 l Data Volume Overview

l Reduction Ratio

l Ethernet Activity

l Fibre Channel Activity

Capacity Report on page 36 l Data Volume Overview

l Disk Usage

l Before Reduction vs After Reduction

l After Reduction vs Unique Data Found

l Reduction Ratio

Capacity Detail Report on page 39 l Data Volume Overview

l Before Reduction

l After Reduction

l Unique Data Found

l Allocated Disk Space

l Data Not Intended for Deduplication

Capacity Delta – Bytes/H and Bytes/S Reports on page 43

l Data Volume Overview

l Combined – Delta in Bytes/h

l Before Reduction – Delta in Bytes/h

l After Reduction – Delta in Bytes/h

l Unique Data Found – Delta in Bytes/h

l Allocated Disk Space – Delta in Bytes/h

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Report Graphs

Capacity Delta – Bytes/H and Bytes/S Reports on page 43

l Data Volume Overview

l Combined – Delta in Bytes/s

l Before Reduction – Delta in Bytes/s

l After Reduction – Delta in Bytes/s

l Unique Data Found – Delta in Bytes/s

l Allocated Disk Space – Delta in Bytes/s

Data Reduction Report on page 47 l Data Volume Overview

l Reduction Ratio

l Deduplication Ratio

l Compression Ratio

CPU Load Report on page 49 l System Load Average

l CPU Stats in %

Ethernet I/O Report on page 51 l Ethernet Activity

l ethn Activity

Fibre Channel I/O Report on page 53 l Fibre Channel Activity

l FC n Activity

OST Statistics Report on page 54 l Combined

o OST Statistics – Accent

o OST Statistics – Ethernet

o OST Accelerator – Ingest

o OST Accelerator – Ingest Data Bytes

o OST Accelerator – Ingest Unique Bytes

o OST Accelerator – Ingest Synthetic Bytes

o OST Accelerator – Savings

o OST Accelerator – Data Change Read

l OST Accent or Accelerator Node n

Chapter 3: ReportsOverview Report


Report Graphs

Per Share Ingest Reports on page 69 l Export Partition Chargeback comma separated value (CSV) file

l Total Per Partition Ingest – Capacity and Ingest

l Per Partition – (1 - n) – Capacity and Ingest

Per Share Ingest Reports on page 69 l Export Partition Chargeback CSV file

l Total Per Share Ingest – Capacity and Ingest

l Per Share – (1 - n) – Capacity and Ingest

Per Share Ingest Reports on page 69 l Export Replication Chargeback CSV file

l Total Per Replication – Capacity and Ingest

l Per Share – (1 - n) – Capacity and Ingest

Ingest and Delete Report on page 62 l Ingest and Deletions

Space Reclamation Report on page 63 l Space Reclamation Progress

l Space Reclamation Bytes

l Space Reclamation/Compaction

System Load Report on page 67 l System Load Average

l CPU Stats in %

l Ethernet Activity

l Fibre Channel Activity

Overview ReportThe Overview report displays key statistics for your DXi appliance, including the amount of data processed by the appliance, the reduction ratio, and the levels of I/O activity. This report contains the following graphs:

l Data Volume Overview Graph on the next page

l Reduction Ratio Graph on page 29

l Ethernet Activity Graph on page 31

l Fibre Channel Activity Graph on page 34



Data Volume Overview GraphThe Data Volume Overview graph displays information about the amount of data processed by the appliance. Use this graph to evaluate the overall health of the appliance, as well as to quickly identify whether your DXi appliance is full or nearing full capacity.

Review the following variables of the Data Volume Overview graph.

Figure 13: Data Volume Overview Graph

Legend Displays the first, last, and delta values for each variable displayed on the graph. In addition, it displays the first and last ratios for the Data Reduction value, which is the amount of data that was reduced on the appliance during the selected time range.

Before Reduction (dark blue)Displays the total amount of data ingested by the appliance.

Use this information to understand how much data the appliance is processing.

After Reduction (dark green)Displays the amount of ingested data remaining on the appliance after the data has been deduplicated and compressed.

Unique Data (light green)Displays the amount of ingested data remaining on the appliance after the data has been deduplicated and redundant data has been identified, but before the ingested data is compressed.



Use this information to view the amount of deduplicated data stored on the appliance.

Used Disk Space (light blue)Displays the amount of space that is being consumed by active data. The used disk space does not include space allocated to be reclaimed for new backup data.

Use this information to see the amount of used system capacity.

Allocated Disk Space (blue-gray)Displays the total amount of allocated disk space. In addition, this variable includes disk space that is free to be reclaimed for storing new backup data.

The types of data for which disk space is allocated include the following:

l Deduplicated data

l Non-deduplicated data

l Expired data

l System metadata

Use this information to see the amount of allocated and free appliance capacity.

Disk Capacity (black)Displays the overall capacity of the appliance.

Space ReclamationA pink bar at the top of the graph indicates that space reclamation is in progress. Space reclamation is source intensive and can affect the rate at which the appliance deduplicates data or performs namespace replication.

Average Transfer RateThe average transfer rate, represented by a thin horizontal black line, displays the average data transfer rate for the selected time range.

Reduction Ratio GraphThe Reduction Ratio graph displays the data reduction factor for the DXi appliance. Use this graph to evaluate the effectiveness of data reduction.



When viewing data on the Reduction Ratio graph, keep in mind that a higher reduction ratio indicates less space is being used to store the same amount of ingested data.

Note: The reduction ratio may vary greatly during space reclamation and during incoming replications because these activities affect the Before Reduction amounts.

Review the following variables of the graph.

Figure 14: Reduction Ratio Graph

Total Reduction Factor (dark blue)Displays the factor when the Before Reduction value is divided by the After Reduction value.

Note: This value corresponds to the Total Reduction Ratio value on the Home page of the DXi virtual console. View the Before Reduction and After Reduction values on the Data Volume Overview Graph on page 28.

Deduplication (light blue)Displays the reduction factor for deduplication. This factor is calculated by dividing the Before Reduction value by the Unique Data value.

Note: View the Before Reduction and Unique Data values on the Data Volume Overview Graph on page 28.

Compression (green)Displays the reduction factor for compression. This factor is calculated by dividing the Unique Data value by the After Reduction value.

Note: View the Unique Data and After Reduction values on the Data Volume Overview Graph on page 28.



Ethernet Activity GraphThe Ethernet Activity graph displays the amount of data passing through all Ethernet ports in the DXi appliance. Use this graph to monitor writes to and reads from the appliance using the Ethernet ports.

Review the following variables of the Ethernet Activity graph.

Figure 15: Ethernet Activity Graph

Ethernet PortsThe graph assigns one of four colors to each Ethernet port. It repeats the color assignment cyclically, as needed.

Example

In the image above, the graph displays data for eight different Ethernet ports. It assigns colors to the ports cyclically, as follows, repeating the colors every four ports:

l Eth0 – dark blue

l Eth1 – light blue

l Eth2 – dark green

l Eth3 – light green

l Eth4 – dark blue

l Eth5 – light blue



l Eth6 – dark green

l Eth7 – light green

In addition, the graph displays alerts in yellow and red tones.

Write and Read ActivityThe legend displays the amount of data being written to and read from the appliance. The graph displays this activity as follows:

l Target replication to the appliance displays as write activity, which is activity above the zero line.

l Source replication from the appliance displays as read activity, which is activity below the zero line.

l NAS backup/restore operations and management activity display as both write and read activity.

l Bonded ports with a balanced traffic load display as symmetrical write and read activity.



Chapter 3: Reports


Network Activity GraphThe Network Activity graph displays the amount of non-Ethernet and non-Loopback data passing through all ports in the DXi appliance. Use this graph to monitor writes to and reads from the appliance using virtual ports.

Review the following variables of the Network Activity graph.

Figure 16: Network Activity Graph

Virtual PortsThe graph assigns colors to each virtual port. It repeats the color assignment cyclically, as needed.






l Bonded ports with a balanced traffic load display as symmetrical write and read activity.

Chapter 3: Reports




Fibre Channel Activity GraphThe Fibre Channel Activity graph displays the amount of data passing through all Fibre Channel ports in the DXi appliance. Use this graph to monitor writes to and reads from the appliance using the Fibre Channel ports.

Review the following variables of the Fibre Channel Activity graph.

Figure 17: Fibre Channel Activity Graph

Fibre Channel PortsThe graph assigns one of four colors to each Fibre Channel port. It repeats the color assignment cyclically, as needed.

Chapter 3: Reports


Example

In the image above, the graph displays data for six different Fibre Channel ports. It assigns colors to the ports cyclically, as follows, repeating the colors every four ports:

l FC0 – dark blue

l FC1 – light blue

l FC2 – dark green

l FC3 – light green

l FC4 – dark blue

l FC5 – light blue



l Write activity, which is activity above the zero line, occurs during backups.

o A regular backup schedule results in repeating patterns.

o A high amplitude on the left edge of an activity block indicates a large number of client backups starting simultaneously.

l Read activity, which is activity below the zero line, occurs during VTL restore operations.

l Symmetrical read and write activity indicates Tivoli Storage Manager (TSM) tape reclamation.

LIP, Reset, and Abort ActivityActivity displays as follows:

l A red line at the top of the graph indicates that a Fibre Channel Loop Initialization Protocol (LIP) or reset occurred.

l An orange line at the top of the graph indicates that a Fibre Channel abort occurred.


Chapter 3: Reports


Capacity ReportThe Capacity report displays information about used storage space, including both processed data statistics and data reduction statistics. The report contains the following graphs:

l Data Volume Overview Graph on page 28

l Disk Usage Graph below

l Before Reduction vs. After Reduction Graph on the next page

l After Reduction Vs. Unique Data Found Graph on page 38


Disk Usage GraphThe Disk Usage graph compares the amount of data stored on the DXi appliance after reduction, which includes deduplication and compression, to the allocated disk space on the appliance. Use the graph to monitor the amount of disk space that is made available during space reclamation.

Review the following variables of the Disk Usage graph.

Figure 18: Disk Usage Graph

Data UsageDisplays the first, last, and delta values for the variables displayed on the graph.

Allocated Disk Space (light blue)Displays the total amount of allocated disk space on the appliance. The value also includes disk space that is

Chapter 3: Reports


free to be reclaimed for storing new backup data.

No Deduplication (dark blue)Displays the amount of data that is not intended for deduplication. This value includes the amount of disk space used by shares or partitions that are not configured for deduplication.

After Reduction (dark green)Displays the amount of data that remains after ingested data is deduplicated and compressed. This value is the amount of data consumed by the blockpool. Use this information to see the amount of deduplicated, compressed data stored on the appliance.

Reclaimable Space (light green)Displays the amount of disk space available for storing new backup data. This newly freed space contained data that expired or was deleted from the appliance.

Reclaimable Space for Shares and Partitions

For non-deduplicated shares and partitions, the appliance can automatically free reclaimable space when all other free space has been allocated.

DXi versions 2.3 and newer can automatically free reclaimable space for deduplicated data on shares and partitions within the blockpool. This process leaves the free space available for subsequent deduplicated data on shares and partitions within the blockpool.

Before Reduction vs. After Reduction GraphThe Before Reduction vs. After Reduction graph compares the amount of data ingested by the DXi appliance to the amount of unique and compressed data stored in the appliance. Use this graph to evaluate the effectiveness of data reduction in the appliance.

Review the following variables of the Before Reduction vs. After Reduction graph.

Chapter 3: Reports


Figure 19: Before Reduction vs. After Reduction Graph

Before Reduction (dark blue)Displays the amount of data ingested by the appliance. This value increases when the appliance is actively ingesting data.

Unique Data (light green)Displays the amount of ingested data remaining on the appliance after it has been deduplicated and its redundant data has been identified, but before the ingested data is compressed. The Unique Data value increases more slowly than the Before Reduction value — as time goes by, less of the data ingested by the appliance is unique data.

After Reduction (dark green)Displays the amount of data that remains on the appliance after ingested data has been deduplicated and compressed. The After Reduction value represents the amount of data consumed by the blockpool. Use this information to see the amount of deduplicated, compressed data stored on the appliance.

After Reduction Vs. Unique Data Found GraphThe After Reduction vs. Unique Data found graph compares the amount of unique data on your DXi appliance before and after compression. Use this graph to evaluate the effectiveness of data compression on your appliance. Review the following variables of the After Reduction vs. Unique Data found graph.

Chapter 3: Reports


Figure 20: After Reduction vs. Unique Data found Graph

After Reduction (dark green)Displays the amount of data remaining on the appliance after ingested data is both deduplicated and compressed.

Unique Data (light green)Displays the amount of data that remains on the appliance after ingested data is deduplicated and its redundant data has been identified, but before the ingested data is compressed.

Capacity Detail ReportThe Capacity Detail report displays information about used storage space, including the amount of data before and after reduction. This report contains the following graphs:


l Before Reduction, After Reduction, and Unique Data Found Graphs below

l Allocated Disk Space Graph on page 41

l Data Not Intended for Deduplication Graph on page 42

Before Reduction, After Reduction, and Unique Data Found GraphsFor the Capacity Detail report, the Before Reduction, After Reduction, and Unique Data found variables are broken out into their own graphs for more detailed viewing.

Chapter 3: Reports


Before Reduction GraphDisplays the total amount of data ingested by the appliance. Use the graph to see the amount of data that the appliance is processing. The graph contains the following variables.

Figure 21: Before Reduction Graph

Trace Time

Displays the date and time range for which data is being displayed on the graph. In addition, the graph displays the total number of seconds on which statistics are being reported.

Data Ingested

The legend displays the first, last, and delta values for the amount of data ingested by the appliance, along with the average amount of data ingested by the appliance for the time range.

After Reduction GraphDisplays the amount of data that remains on the appliance after ingested data is both deduplicated and compressed. Use the After Reduction graph to see the amount of deduplicated, compressed data stored on the appliance.

Chapter 3: Reports


Figure 22: After Reduction Graph

Unique Data found GraphDisplays the amount of data that remains on the appliance after ingested data is deduplicated and its redundant data has been identified, but before the ingested data is compressed. Use the Unique Data found graph to see the amount of deduplicated data stored on the appliance.

Figure 23: Unique Data found Graph

Allocated Disk Space GraphThe Allocated Disk Space graph displays the amount of disk space being used to store data on the DXi appliance. Use this graph to see how much active and reclaimable data is allocated to the appliance's disk space. Review the following variables of the Allocated Disk Space graph.

Chapter 3: Reports


Figure 24: Allocated Disk Space Graph

Allocated Disk Space (light blue)Displays the total amount of allocated disk space. This value includes disk space that is free to be reclaimed for storing new backup data.

Critical Disk Space (red)Displays the level of disk usage at which allocated disk space is critically low and ingest is stopped.

Note: The Critical Disk Space value may not be visible if it lies above the top of the y-axis.

Disk Capacity (black)Displays the overall capacity of the appliance.

Data Not Intended for Deduplication GraphThe Data not intended for deduplication graph displays the amount of disk space on the DXi appliance used by data on shares or partitions that do not have deduplication enabled. This value is the sum of the UserDataSize values for all non-deduplicated shares or partitions.

Chapter 3: Reports


Figure 25: Data not intended for deduplication Graph

Capacity Delta – Bytes/H and Bytes/S ReportsThe Capacity Delta reports display changes in the amount of data stored on the DXi appliance. The reports share the same graphs, but display amounts in either bytes per hour or bytes per second. For purposes of this document, screen shots for the Capacity delta reports are displayed in bytes per hour.

The reports contain the following graphs:


l Combined – Delta in Bytes/H and Bytes/S Graphs below

l Before Reduction, After Reduction, and Unique Data Found Graphs (Delta in Bytes/H and Bytes/S) on the next page

l Allocated Disk Space – Delta in Bytes/H or Bytes/S on page 46

Combined – Delta in Bytes/H and Bytes/S GraphsThe Combined – delta in Bytes/h and Combined – delta in Bytes/s graphs display changes for Before Reduction, Unique Data, and After Reduction variables in bytes per hour or bytes per second. Use these graphs to see increases and decreases in total amounts of data stored on the DXi appliance. Review the following variables of the Combined – delta in Bytes/h and Combined – delta in Bytes/s graphs.

Chapter 3: Reports


Figure 26: Combined – delta in Bytes/h Graph

Zero LineDisplays values in relation to the zero line as follows:

l Values above the zero line indicate an increase in stored data.

l Values below the zero line indicate a decrease in stored data.

Before Reduction (blue)Displays increases and decreases in the amount of ingested — not deduplicated, nor compressed — data stored on the appliance.

Unique Data (light green)Displays increases and decreases in the amount of deduplicated data stored on the appliance.

After Reduction (dark green)Displays increases and decreases in the amount of deduplicated, compressed data stored on the appliance.

Before Reduction, After Reduction, and Unique Data Found Graphs (Delta in Bytes/H and Bytes/S)For the Capacity delta – Bytes/h and the Capacity delta – Bytes/s reports, the Before Reduction, After Reduction, and Unique Data found variables are broken into their own graphs for more detailed viewing.

Chapter 3: Reports


TipsKeep the following in mind when viewing these graphs:

l Values above the zero line indicate an increase in data stored.

l Values below the zero line indicate a decrease in data stored.

Before Reduction – Delta in Bytes/h or Bytes/s GraphsThese graphs display increases and decreases in the amount of ingested — not deduplicated, nor compressed — data stored on the appliance. In addition, the legend in each graph shows the average amount of data ingested per hour or per second for the displayed time range.

Figure 27: Before Reduction – delta in Bytes/h Graph

After Reduction – Delta in Bytes/h or Bytes/s GraphsThese graphs display increases and decreases in the amount of deduplicated, compressed data stored on the appliance. In addition, the legend in each graph shows the average amount of deduplicated and compressed data ingested per hour or per second for the displayed time range.

Chapter 3: Reports


Figure 28: After Reduction – delta in Bytes/h Graph

Unique Data Found – Delta in Bytes/h or Bytes/s GraphsThese graphs display increases and decreases in the amount of deduplicated data stored on the appliance. In addition, the legend in each graph shows the average amount of unique data ingested per hour or per second for the displayed time range.

Figure 29: Unique Data found – delta in Bytes/h Graph

Allocated Disk Space – Delta in Bytes/H or Bytes/SThe Allocated Disk Space – delta in Bytes/h and Allocated Disk Space – delta in Bytes/s graphs display changes for allocated disk space values in bytes per hour or bytes per second. Use these graphs to see increases and decreases in the amount disk capacity used to store data. Review the following variables of these graphs.

Chapter 3: Reports


Figure 30: Allocated Disk Space – delta in Bytes/h Graph

Types of DataThe following types of data can be stored on allocated disk space:

l Deduplicated data

l Non-deduplicated data

l System metadata

Note: This variable does not include disk space that is available for reuse, which includes expired or deleted data.

Allocated AmountsAmounts are displayed as follows:

l Values above the zero line indicate an increase in stored data.

l Values below the zero line indicate a decrease in stored data.

Data Reduction ReportThe Data Reduction report displays detailed data reduction statistics for the DXi appliance. The report contains the following graphs:



l Deduplication Ratio And Compression Ratio Graphs on the next page

Chapter 3: Reports


Deduplication Ratio And Compression Ratio GraphsThe Deduplication Ratio and Compression Ratio graphs display the amount of data reduction that has been achieved on the DXi appliance, as follows.

Deduplication Ratio GraphThis graph displays the deduplication factor for the appliance. This factor is calculated by dividing the Before Reduction value by the Unique Data value. See the Data Volume Overview Graph on page 28.

A higher deduplication ratio indicates less space is being used to store the same amount of raw data on the appliance. Use the Deduplication Ratio graph to evaluate the effectiveness of deduplication in the appliance.

Note: The deduplication ratio can vary widely during both space reclamation and incoming replication. These activities affect the Before Reduction amounts, which in turn, affects the deduplication ratio.

Figure 31: Deduplication Ratio Graph

Compression Ratio GraphThis graph displays the compression factor for the appliance. This factor is calculated by dividing the Unique Data value by the After Reduction value. See the Data Volume Overview Graph on page 28.

A higher compression ratio indicates less space is being used to store the same amount of deduplicated data on the appliance. Use the Compression Ratio graph to evaluate the contribution of compression to overall data reduction and space savings for the appliance.

Note: The compression ratio can vary widely during space reclamation or during incoming replication. These activities affect the Before Reduction amounts, which in turn, affects the compression ratio.

Chapter 3: Reports


Figure 32: Compression Ratio Graph

CPU Load ReportThe System Load report displays information about the usage of CPU resources for the DXi appliance. The report contains the following graphs:

l System Load Average Graph below

l CPU Stats in % Graph on the next page

System Load Average GraphThe System Load Average graph displays the one-minute load average for the appliance. Use this graph to determine whether the appliance has adequate CPU resources. Review the following information for help in reading the graph.

Figure 33: System Load Average Graph

Chapter 3: Reports


Load AverageShows the average number of processes running or waiting to run on a CPU over a one-minute period. A load average higher than the number of system CPU cores indicates that the system is CPU limited.

Example

A typical system has 4 CPUs. For such systems, a load average of greater than 4 indicates that some processes waited for an available CPU before running. In contrast, a load average of less than 4 indicates that CPUs were immediately available for all processes to run.

CPU Stats in % GraphThe CPU stats in % graph displays the relative CPU usage for the following seven process categories. Use this graph to see how CPU resources are allocated among these categories.

Figure 34: CPU stats in % Graph

Process CategoriesThe following table lists the process categories displayed on the CPU stats in % graph:

Process Category Description

iowait (red) The CPU is waiting for an I/O appliance, such as a disk, to respond.

irq (gold) The CPU is handling an interrupt request related to I/O, such as network, disk, keyboard, or serial port activity.

Chapter 3: Reports


Process Category Description

softrq (brown) The CPU is handling a high-level I/O task, such as timer interrupts or packets in the TCP/IP stack.

system (green) The CPU is handling a kernel process, such as filesystem operations related to the StorNext or blocklet filesystems.

nice (black) The CPU is handling processes that have lower priority, such as background processes.

user (blue) The CPU is handling processes that are not owned by the kernel, such as deduplication, space management, and replication activities.

idle (not shown) The CPU is not handling any of the other process categories.

Consideration

When viewing statistics for the process categories in the CPU stats in % graph, keep in mind that the amount of CPU activity consumed by each process category is expressed as a percentage. The percentages include the value for idle, which is not shown in the graph, and add up to 100%.

Ethernet I/O ReportThe Ethernet I/O report displays detailed information about the amount of data passing through the Ethernet ports in the DXi appliance. The report contains the following graphs:


l Ethn Activity Graph below

Ethn Activity GraphThe ethn Activity graph displays the amount of data passing through the different Ethernet ports on your DXi appliance. Use this graph to monitor writes to and reads from the appliance using the different Ethernet ports.

Review the following variables of the ethn Activity graph.

Chapter 3: Reports


Figure 35: ethn Activity Graph

Write and Read ActivityThe graph displays the amount of data being written to and read from the appliance, as follows:






Network I/O ReportThe Network I/O report displays detailed information about the amount of non-Ethernet and non-Loopback data passing through the network ports in the DXi appliance. The report contains the following graphs:

l Network Activity Graph on page 33

l Virtual Network Activity Graph on the next page

Chapter 3: Reports


Virtual Network Activity GraphThe (Virtural Network Activity (virbrn) graph displays the amount of data passing through the different virtual network ports on your DXi appliance. Use this graph to monitor writes to and reads from the appliance using the different virtual network ports.

Review the following variables of the Virtual Network Activity graph.







Fibre Channel I/O ReportThe Fibre Channel I/O report displays detailed information about the amount of data passing through the Fibre Channel ports on the DXi appliance. The report contains the following graphs:


l FCn Activity Graph below

FCn Activity GraphThe FCn Activity graph displays the amount of data passing through the different Fibre Channel ports on your DXi appliance. Use this graph to monitor writes to and reads from the appliance using the different Fibre Channel ports.

Chapter 3: Reports


Review the following variables of the FCn Activity graph.

Figure 36: FCn Activity Graph


l Write activity, which is activity above the zero line, occurs during backups.

o A regular backup schedule results in repeating patterns.

o A high amplitude on the left edge of an activity block indicates a large number of client backups starting simultaneously.

l Read activity, which is activity below the zero line, occurs during VTL restore operations.


OST Statistics ReportUse the OST Statistics report to understand the network bandwidth savings and performance benefits you are achieving when either DXi Accent software or NetBackup Accelerator is enabled to enhance your backups.

Note: You cannot use Accent if you are using NetBackup Accelerator or Optimized Synthetic Backups. If you are using Accelerator, make sure that Accent is not enabled. For more information about using NetBackup Accelerator, see the DXi-Series Configuration and Best Practices Guide for NetBackup from Symantec (6-67850).

http://www.quantum.com/serviceandsupport/softwareanddocumentationdownloads/dxi4500/index.aspx

http://www.quantum.com/serviceandsupport/softwareanddocumentationdownloads/dxi4500/index.aspx

Chapter 3: Reports


NetBackup AcceleratorNetBackup Accelerator reduces network bandwidth requirements, while also reducing I/O at the DXi appliance. It achieves these reductions by identifying changed blocks of data on the client machine, and then sending only the changed data from the client to the appliance. The appliance then synthesizes the changed data with existing blocks of data.

Note: NetBackup Accelerator is available for DXi versions 3.1 and higher.

Workflow

Review the following workflow to gain a better understand of how Netback Accelerator functions.

a. The Accelerator Changed Block Tracking (CBT) agent exists on the client machine. It identifies and sends only the changed blocks of data as ingest data bytes to the appliance through the NetBackup Media Server.

b. When a changed block of data arrives at the NetBackup Media Server, the Accelerator plugin creates an OST file from that block. The Netbackup Media server then sends the OST file as ingest data bytes to the appliance.

c. The appliance reads synthetic data from its disk to be merged with the arriving ingest data bytes. Merging this data creates a synthesized image file. The appliance then further deduplicates the synthesized image file and writes only the changed data to the appropriate disk as unique data bytes.

Chapter 3: Reports


Figure 37: Accelerator Workflow

The report contains the following graphs:

l OST Statistics – Accent Graph below

l OST Statistics – Ethernet Graph on the next page

l OST Statistics – Accelerator Graphs on page 58

l OST Accent or Accelerator Node n Graph on page 61

OST Statistics – Accent GraphThe OST Statistics – Accent graph displays the bandwidth savings and performance benefits you are achieving with DXi Accent. Use this graph to understand the bandwidth savings achieved by the Accent feature.

Review the following variables on the OST Statistics – Accent graph.

Note: This graph only shows data when Accent is enabled.

Chapter 3: Reports


Figure 38: OST Statistics – Accent Graph

Inline (Accent) (blue)Displays data arriving at the appliance from an Accent-enabled OST server.

Compare the Inline (Accent) variable to the Ethernet variable to see the amount of network bandwidth savings that Accent is achieving. In addition, you can compare the rate shown by the Inline (Accent) variable to the overall performance of the appliance in the Data Volume Overview Graph on page 28.

Ethernet (green)Displays the data arriving at the appliance via Ethernet.

Accent EnabledTick marks at the top of the graph indicate whether Accent is enabled:

l Blue – Accent is enabled for the appliance.

l Green – Accent is not enabled for the appliance.

OST Statistics – Ethernet GraphThe OST Statistics – Ethernet graph displays the amount of data being backed up to the DXi appliance through OST servers. Use the graph to compare the amount of data being processed, and the performance of OST servers, to the overall values in the Data Volume Overview Graph on page 28. Review the following variables of the OST Statistics – Ethernet graph.

Note: If DXi Accent is enabled, the OST Statistics – Ethernet graph will not display data.

Chapter 3: Reports


Figure 39: OST Statistics – Ethernet Graph


l Target replication to the appliance from OST servers displays as write activity, which is activity above the zero line.

l Source replication from the appliance through OST servers displays as read activity, which is activity below the zero line.


OST Statistics – Accelerator GraphsUse the OST Statistics – Accelerator graphs to understand the network bandwidth savings and performance benefits that you are achieving when NetBackup Accelerator is enabled to enhance your backups. These graphs consist of the following.

OST Accelerator – Ingest Displays the following breakdown of data:

Ingest Synth Bytes (light blue)

Displays the amount of data being read from the DXi appliance to be synthesized with Ingest Data Bytes arriving at the DXi appliance from the client.

Ingest Data Bytes (dark blue)

Displays the total amount of data sent to the appliance for backup after Accelerator identifies, optimizes, and sends only the changed data blocks to the appliance.

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Ingest Unique Bytes (green)

Displays the amount of data from the synthesized image file that is saved on disk after deduplication and compression.

Figure 40: OST Accelerator – Ingest Graph

OST Accelerator – Ingest Data BytesDisplays the total amount of data sent to the appliance for backup after Accelerator identifies, optimizes, and sends only the changed data blocks to the appliance.

Figure 41: OST Accelerator – Ingest Data Bytes Graph

OST Accelerator – Ingest Unique BytesDisplays the amount of data from the synthesized image file that is saved on disk after deduplication and compression.

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Figure 42: OST Accelerator – Ingest Unique Bytes

OST Accelerator – Ingest Synthetic BytesDisplays the amount of data being read from the appliance to be synthesized with ingest data bytes arriving at the appliance from the client.

Figure 43: OST Accelerator – Ingest Synthetic Bytes

OST Accelerator – SavingsDisplays the savings achieved through Accelerator CBT. Total savings are calculated using the following equation:

1 - (Ingest Data Bytes) / (Ingest Data Bytes + Synthetic Bytes)

Example

a. The client machine sends 50 GB of data (ingest data bytes) to the appliance.

b. The appliance reads 950 GB of data (synthetic data bytes) from the disk, and then merges the 950 GB with the 50 GB to create a 1 TB image file.

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c. The appliance then writes only the 50 GB of unique data (unique data bytes) to disk. The savings achieved by Accelerator is 95%:

1 - (50 GB) / (50 GB + 950 GB) = 95% savings

Figure 44: OST Accelerator – Savings Graph

OST Accelerator – Data Change RateDisplays the percentage of ingest data bytes that have been merged with synthetic data bytes on the appliance.

Figure 45: OST Accelerator – Data Change Rate

OST Accent or Accelerator Node n GraphThe OST – Node n graph displays the following information.

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OST – Accent Node nDisplays the bandwidth savings and performance benefits you are achieving with each Accent node. Compare the Inline (Accent) variable to the Ethernet variable to see the amount of network bandwidth savings that Accent is achieving. You can compare the Inline (Accent) rate to the overall performance of the DXi appliance in the Data Volume Overview Graph on page 28.

For more information, see OST Statistics – Accent Graph on page 56.

Note: This graph only shows data when Accent is enabled.

OST – Accelerator Node nFor Accelerator-enabled OST servers, the Accelerator graphs display for each Accelerator node. Use these graphs as you do for the Combined Report. For more information, see OST Statistics – Accelerator Graphs on page 58.

Note: These graphs only show data when Accelerator is enabled.

Ingest and Delete ReportThe Ingest and Delete report displays information about the amount of unique data, after compression and deduplication, that is backed up to and deleted from the DXi appliance on an hourly, daily, and weekly basis. The report contains Ingest and Deletions Graphs below for the three time variables.

Ingest and Deletions GraphsThe Ingest and Deletions graphs display the amount of unique data — after compression and deduplication — being ingested and deleted from the DXi appliance. Use these graphs to determine whether the appliance is in a steady state. When the appliance is in a steady state, the amount of data being backed up to the appliance is balanced with the amount of data expiring on the appliance.

Examples

Non-Steady State

When the appliance is new and expiration policies are not running on a regular basis, you will see more data being ingested than deleted.

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Steady State

The amounts of data being ingested and deleted from the appliance over a period of time are similar.

The Ingest and Deletions graphs display the same elements for their different time variables — per hour, per day, or per week. Review the following information.

Figure 46: Ingest and Deletions per hour Graph

UniqueBytesIngest (green)Displays the amount of unique data, which is data after compression and deduplication, ingested by the appliance for the specific graph's time variable — per hour, per day, or per week.

Use this value to determine whether your appliance is in a steady state by comparing it to the UniqueBytesDeleted value. If the two values are similar, your appliance is in a steady state.

UniqueBytesDeleted (blue)Displays the amount of unique data, which is data after compression and deduplication, deleted by the appliance for the specific graph's time variable — per hour, per day, or per week.

Use this value to determine whether your appliance is in a steady state by comparing it to the UniqueBytesIngest value. If the two values are similar, your appliance is in a steady state.

Space Reclamation ReportThe Space Reclamation report displays information about the overall progress of disk space reclamation activities. In addition, it provides details about the underlying data from which space is being reclaimed. Use

Chapter 3: Reports


this report to monitor the performance of space reclamation, as well as to identify issues with overlapping DXi processes or performance issues in the RAID subsystem, such as with the file system or Fibre Channel path.

The report contains the following graphs:

l Space Reclamation Progress Graph below

l Space Reclamation Bytes Graph on the next page

l Space Reclamation/Compaction Graph on page 66

Space Reclamation Progress GraphThe Space Reclamation Progress graph displays the progress of the space reclamation stages. Use this graph to view the progress that has been made in reclaiming space on the DXiappliance. Review the following to gain a better understanding about space reclamation stages and progress.

Figure 47: Space Reclamation Progress Graph

Stages of Space ReclamationSpace reclamation consists of the following stages.

Stage 1: Compact

Compaction is the process that reclaims disk space allocated to the appliance's blockpool. The Compact stage deletes data identified by tags with a reference count of zero.

In this first Compact stage, the appliance deletes data that was tagged with a reference count of zero during a previous space reclamation. This stage allows you to do the following:

a. Cancel a reclamation process to recover data that you do not want deleted.

b. Delete data still tagged with a reference count of zero in a new reclamation process, without restarting the previous process.

Stage 2: Reconcile

The Reconcile stage collects a list of tags set to expire, along with the associated reference counts.

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Stage 3: Delete

The Delete stage decrements the reference count of tags that have expired.

Stage 4: Compact

In the second Compact stage, the appliance deletes any tags with a reference count of zero in the current space reclamation process.

gcStage x 10 (green)Represents the current stage of space reclamation activity. For readability purposes, the stage number is multiplied by 10 on the graph.

Example

the gcStage x 10 line plots at 20 along the y-axis to identify stage 2 (2 x 10 = 20).

Progress (light blue)Indicates the percentage of space reclamation that is currently complete.

Total Progress (dark blue)Indicates the space reclamation progress completed over time.

Note: The Progress and Total Progress variables may never reach 100% because sampling is performed at specific intervals. When reclamation completes, no additional data is returned and Advanced Reporting cannot collect the 100% data point.

Space Reclamation Bytes GraphThe Space Reclamation Bytes graph displays details about the data that is being reduced and the space that is being reclaimed on the DXi appliance. Review the graph's following variables.

Figure 48: Space Reclamation Bytes Graph

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User Bytes to Reclaim (light blue)Displays the amount of space that is reclaimed as ingested data is reduced. For each cluster of data, the peak shows the amount of ingested data, and the decline of the cluster's values shows the amount of disk space that is reclaimed by data reduction.

Disk Bytes to Reclaim (light green)Displays the actual space that is reclaimed during Stage 4 of space reclamation. For information about space reclamation stages, see Space Reclamation Progress Graph on page 64.

Space Reclamation/Compaction GraphThe Space Reclamation/Compaction graph displays the number of bytes freed by compaction, which is the process that reclaims disk space allocated to the DXi appliance's blockpool. Review the graph's variable below.

Note: Compaction only runs when disk space is extremely low, and so there could be long periods when compaction is not run and data is not displayed as shown below.

Figure 49: Space Reclamation/Compaction Graph

Bytes to CompactShows the number of bytes on the disk that will be freed during compaction. The variable's peak displays the total number of bytes of disk space that will be reclaimed from the appliance's blockpool. The variable decreases as compaction proceeds, until all allocated disk space has been freed.

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System Load ReportThe System Load report displays information about the CPU, disk, and I/O resources being used in the DXi appliance. The report contains the following graphs:

l System Load Average Graph on page 49

l CPU Stats in % Graph on page 50



InlineThroughput ReportThe Inline Throughput report displays information about deduplicated and non-deduplicated data from backup jobs for shares and partitions, as well as OST data. for the DXi appliance. The report contains the following graphs:

l Deduplicated Data Graph below

l Non-Deduplicated Data Graph on the next page

Deduplicated Data GraphThe Deduplicated Data graph displays the amount of deduplicated data from backup jobs from share and partitions, as well as OST data on the DXi appliance. Use this graph compare the amount of deduplicated versus non-deduplicated data from backup jobs and OST data over a period of time. Review the following variables of the Deduplicated Data graph.

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Figure 50: Deduplicated Data Graph

VTLDisplays the amount of deduplicated from VTL partition backups.

NFSDisplays the amount of deduplicated from NFS NAS share backups.

SMBDisplays the amount of deduplicated from CIFS/SMB share backups.

OSTDisplays the amount of deduplicated OST data.

APP_SPECDisplays the amount of deduplicated from Application Specific NAS share backups.

Non-Deduplicated Data GraphThe Non-Deduplicated Data graph displays the amount of data that was not deduplicated from backup jobs and OST data on the DXi appliance. Use this graph compare the amount of deduplicated versus non-deduplicated data from backup jobs and OST data over a period of time. Review the following variables of the Non-Deduplicated Data graph.

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Figure 51: Non-Deduplicated Data Graph

VTLDisplays the amount of non-deduplicated from VTL partition backups.

NFSDisplays the amount of non-deduplicated from NFS NAS share backups.

SMBDisplays the amount of non-deduplicated from CIFS/SMB share backups.

Per Share Ingest Reports Ingest (Chargeback) reports provide an estimate of the amount of disk space that a source occupies on the DXi appliance. You can use this estimate to determine how much to charge a source for storage space during a specified time range. This chargeback estimate assumes that only one source occupies a partition or share on the appliance.

Example

You back up data for several customers. Instead of requiring the DXi appliance for each customer, you can assign separate partitions or shares on the appliance to each customer. You can then charge customers based on the amount of space they use within their assigned partitions or shares for a given period of time.

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ConsiderationsWhen viewing chargeback data, keep the following in mind:

Reporting Intervals

Advanced Reporting reports chargeback in 1-minute or 5-minute intervals, causing the display to lag by 1 or 5 minutes. Hold your cursor over the graph to see a tooltip describing how timing can impact data in the graph.

In addition, if a replication starts and completes in a single reporting interval, ingest data is not displayed on the graph or legend.

Rounding and Granularity

Changes in rounding and granularity can cause small differences in the displayed values within the graphs and summaries, as well as in the comma separated values (CSV) file. Changing the amount of time that you are viewing could cause small differences in the graph summary values, as well. This behavior is normal.

Maximum Number of Partitions or Shares

Advanced Reporting accepts and retains values for 256 ingest partitions or shares, and ignores statistics for partitions or shares beyond this maximum. If this maximum is exceeded, Advanced Reporting displays a one-time per boot log message.

Time Intervals

We do not recommend using chargeback reporting for short time intervals. Because of the methods for estimating chargeback statistics, chargeback reporting yields the best results when the time span is greater than 7 days.

Per Partition Ingest Report and Per Share Ingest ReportThe Per Partition Ingest report and Per Share Ingest report display the same ingest information, with the exception of the type of variable on which they are reporting — either a partition or a share.

l A partition refers to a container of data on an appliance, and includes both VTL partitions and cartridge-based replication partitions.

l A share refers to a container of data on an appliance, and includes the following:

o CIFS share

o NFS share

o OST (the container is the storage server)

o Directory/File-based replication target share

o Replication snapshots on a target

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These reports contain graphs that display both the total amounts of ingested data on an appliance, and the amounts of ingested data in individual partitions or shares. In addition, you can export a Chargeback Ingest comma separated value (CSV) file from the reports to view a breakdown of the report's statistics.

Replication Ingest ReportThe Replication Ingest report displays the amounts of data coming into the appliance indirectly through replication. This replication ingest data can include OST optimized duplication data.

Chargeback for replication tracks the following amounts of data within a share or partition being replicated to the appliance:

l Ingested data

l Compressed data

l Deduplicated data

l Protected data

This report contains graphs that display both the total amounts of ingested replicated data on the appliance, and the amounts of data in individual partitions or shares sent to the appliance for replication. In addition, you can export a Chargeback Ingest CSV file from the report to view a breakdown of the report's statistics.

Additional Information

l When replication ingest has not occurred, the database will be empty and the report will not display.

l The Replication Ingest report's graphs display the same interface and data sets as the Per Partition Ingest report and Per Share Ingest report.

Chargeback GraphsReview the following topics for more information about the Ingest (Chargeback) reports and graphs. Keep in mind that all three reports use the same data sets and interface.

l Ingest (Chargeback) – Capacity Graphs on page 76

l Ingest (Chargeback) – Ingest Graphs on page 77

l Exporting a Chargeback Ingest File below

Exporting a Chargeback Ingest FileYou can export a Chargeback Ingest comma separated value (CSV) file to view a breakdown of ingested data statistics for the DXi appliance and its partitions or shares.

CSV File Name

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When you download a Chargeback Ingest CSV file, the system names the file using a combination of the appliance's serial number and the start time and end time of the selected time period. This naming convention is shown in the following example of a Chargeback Partition Ingest CSV file.

Export a Chargeback Ingest CSV file 1. Depending on the type of file to export, do one of the following:

l From the Reports > Per Partition Ingest menu, select Export Partition Chargeback to download the CSV file.

l From the Reports > Per Share Ingest menu, select Export Share Chargeback to download the CSV file.

l From the Reports > Replication Ingest menu, select Export Replication Chargeback to download the CSV file.

2. In the File Received dialog box, click OK to save the CSV file.

Figure 52: File Received Dialog Box

3. Browse to the location to which to save the CSV file, rename it as needed, and click Save to download and save the CSV file.

Chargeback Ingest File ContentsThe Chargeback Ingest CSV file contains the following information.

Field Description

Hostname The appliance's hostname.

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Field Description

SystemSerialNumber The appliance's serial number.

Start The start time of the selected time range.

End The end time of the selected time range.

Name For Partition or Share Chargeback Ingest files

The name of the partition (P) or share (S) receiving backup data, as configured in the appliance and as shown in the DXi virtual console for the ingest CSV .

For Replication Chargeback Ingest files

The name of the partition (P) or share (S) replicating data to the appliance, as configured in the appliance and as shown in the DXi virtual console for the ingest CSV.

UserDataSizeAvg The sum of all observed UserDataSize values, divided by the number of observations for the selected time period.

UserDataSizeMax The maximum UserDataSize value observed for the selected time period.

UserDataSize For Partition or Share Chargeback Ingest files

The amount of user data stored in the partition or share at the end of the selected time period. This value represents the sum of the file sizes in the partition or share prior to data reduction.

For Replication Chargeback Ingest files

The size of the replicated partitions or shares sent to the appliance at the end of the selected time period. This value includes the size of the ingested replication copies.

InputBytes The total size of data as it arrives at the appliance during the selected time frame. This value represents only ingested data — it does not include deleted data.

UniqueBytesPreCompression The total amount of ingested data after deduplication for the selected time frame. This value represents only ingested data — it does not include deleted data.

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Field Description

UniqueBytesPostCompression The total amount of ingested data after total reduction (both compression and deduplication) for the selected time range. This value represents only ingested data — it does not include deleted data.

ReductionRatio The sum of all observed UserDataSize values, divided by the sum of all UniqueBytesPostCompression values.

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Field Description

DedupRatio The sum of all UserDataSize values, divided by the sum of all UniqueBytesPreCompression values.

Deduplication Ratio Considerations

To gain a better understanding of the deduplication ratio, review the following:

Statistical Accuracy

The deduplication ratio per partition or share is based on the average total reduction of all data ingested during the selected time period against all data stored on the appliance.

Because this ratio is an average, the accuracy increases as the period of time increases. The average is based on 1-minute time points throughout the time period.

l 1 hour contains 60 time points

l 1 day contains 1440 time points.

Statistical accuracy becomes better when you have more time points.

Blockpool Impacts

If two partitions or shares have a large amount of similar data, the first partition or share to ingest the data will have a lower deduplication ratio because all deduplicated data resides in the same blockpool. In other words, the first partition or share will contain more of the deduplicated data.

CompressionRatio The ReductionRatio value divided by the DedupRatio value.

OnDisk The amount of effective disk space being used at the end of the selected time period.

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Field Description

OnDiskAvg The sum of all OnDisk values, divided by the number of observations for the selected time period.

PercentOfTotalCapacity The percent of the total capacity of disk space being used for the selected time period.

Ingest (Chargeback) – Capacity GraphsThe Capacity graphs display the amount of data sent to the DXi appliance for backup or replication from its sources. Capacity graphs displays the following variables.

Note: For the purpose of this document, screen shots are of the Per Partition Ingest report. All three reports use the same data sets and interface.

Partition/Share <name> – CapacityShows the amount of data sent to a single partition or share on the appliance for backup, or the amount of data within a partition or share sent to the appliance for replication.

Figure 53: Partition <name> – Capacity graph

VariablesThe Capacity graphs display the following information for the type of data — total capacity or per partition/share capacity — on which statistics are being reported:

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User Data Size

The graph displays one of the following:

l The total amount of data coming into the appliance for backup or replication from all sources for each minute during the selected time range.

l The amount of data coming into a single partition or share for backup for each minute during the selected time range.

l The amount of data within a partition or share being replicated to the appliance for each minute during the selected time range.

First, Last, and Delta Values

The graph's legend shows the first and last data points for the selected time range, and the difference between the two points.

Note: Capacity displayed for the last minute of the graph corresponds to the UserDataSize value in the exported Chargeback Ingest comma separated value (CSV) file. See Exporting a Chargeback Ingest File on page 71.

Ingest (Chargeback) – Ingest GraphsThe Ingest graphs display the amount of data ingested by the DXi appliance. Ingest graphs consist of two types, which display the same variables.

Note: For the purpose of this document, screen shots are of the Per Partition Ingest report. All three reports use the same data sets and interface.

Partition/Share <name> – IngestDisplays the amount of data ingested in a single partition or share on the appliance for the selected time range, or the amount of data within a partition or share being replicated to and ingested by the appliance for the selected time range.

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Figure 54: Partition <name> – Ingest Graph

VariablesThe Ingest graphs display the following information for the type of data — total ingest or per partition/share ingest — on which statistics are being reported:

InputBytes (dark blue)

Displays data ingested prior to reduction or compression.

UniqueBytesPreCompression (light green)

Displays data ingested after deduplication.

UniqueBytesPostCompression (dark green)

Displays data ingested after both compression and deduplication.

Note: The totals displayed in the graph's legend correspond to the values with the same names in the exported Chargeback Ingest comma separated value (CSV) file. See Exporting a Chargeback Ingest File on page 71.