data retention utility

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HP StorageWorks

XP24000/XP20000 Data Retention UtilityUser's Guide

This user's guide describes and provides instructions for using the Data Retention Utility software to configureand perform Data Retention Utility operations on the HP storage system.

Part number: T5214-96060Fifth edition: December 2008


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Legal and notice information

Copyright 2008 Hewlett-Packard Development Company, L.P.

Confidential computer software. Valid license from HP required for possession, use or copying. Consistent with FAR 12.211and 12.212, Commercial Computer Software, Computer Software Documentation, and Technical Data for Commercial Itemsare licensed to the U.S. Government under vendor's standard commercial license.

The information contained herein is subject to change without notice. The only warranties for HP products and services are setforth in the express warranty statements accompanying such products and services. Nothing herein should be construed asconstituting an additional warranty. HP shall not be liable for technical or editorial errors or omissions contained herein.

Java is a US trademark of Sun Microsystems, Inc.

Export Requirements

You may not export or re-export this document or any copy or adaptation in violation of export laws or regulations.

Without limiting the foregoing, this document may not be exported, re-exported, transferred or downloaded to or within (or toa national resident of) countries under U.S. economic embargo, including Cuba, Iran, North Korea, Sudan, and Syria. Thislist is subject to change.

This document may not be exported, re-exported, transferred, or downloaded to persons or entities listed on the U.S. Departmentof Commerce Denied Persons List, Entity List of proliferation concern or on any U.S. Treasury Department Designated Nationalsexclusion list, or to parties directly or indirectly involved in the development or production of nuclear, chemical, biologicalweapons, or in missile technology programs as specified in the U.S. Export Administration Regulations (15 CFR 744).

Revision History

DescriptionDateEdition

This edition applies to microcode version 60-01-31-00/00 or later.June 2007First

This edition applies to microcode version 60-01-68-00/00 or later.September 2007Second

This edition applies to microcode version 60-02-25-00/00 or later.January 2008Third

This edition applies to microcode version 60-02-48-00/00 or later.March 2008Fourth

This edition applies to microcode version 60-04-04-00/00 or later.December 2008Fifth


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Contents

1 About HP StorageWorks XP Data Retention Utility Operations .................. 7Data Retention Utility Components ................................................................................................ 7Data Retention Utility Functions ..................................................................................................... 7

Access Attributes .................................................................................................................. 7Data Retention Term Function ................................................................................................. 8Expiration Lock Function ........................................................................................................ 9S-VOL Disable Function ......................................................................................................... 9Reserve Function ................................................................................................................ 10

Interoperability with Other Products and Functions ......................................................................... 10HP StorageWorks XP LUN Expansion (LUSE) .......................................................................... 10HP StorageWorks XP Virtual LVI/LUN .................................................................................... 10RAID Manager .................................................................................................................. 10

Auto Start Products ............................................................................................................. 10

2 Preparing for Data Retention Utility Operations .................................... 13Prerequisites and Restrictions for Data Retention Utility ................................................................... 13Installing and Uninstalling Data Retention Utility ............................................................................ 13Starting Data Retention Utility ..................................................................................................... 14

3 Using the Data Retention Utility GUI ................................................... 15Data Retention Window ............................................................................................................ 15

Volume List ........................................................................................................................ 16

4 Performing Data Retention Utility Operations ........................................ 19Changing the Access Attributes .................................................................................................. 19Extending the Data Retention Term .............................................................................................. 20

Term Setting Dialog Box ...................................................................................................... 21Prohibiting Changes to Read/Write Even When the Retention Term is Over (Enabling/Disabling theExpiration Lock Function) ............................................................................................................ 22Protecting Logical Volumes Against Storage System Copy Operations (Setting the S-VOL DisableFunction) .................................................................................................................................. 22

Preventing a Read/Write Volume from Becoming a Secondary Volume ..................................... 23Specifying a Read/Write Volume as a Secondary Volume ....................................................... 24

Preventing Remote Web Console Users from Configuring LU Paths and Command Devices (Setting theReserve Function) ...................................................................................................................... 25

Viewing a List of Logical Volumes Combined into a LUSE Volume ....................................................26

Volume Detail Dialog Box .................................................................................................... 26

5 Troubleshooting ............................................................................... 29General Troubleshooting ............................................................................................................ 29

Error Detail Dialog Box ....................................................................................................... 30Calling HP Technical Support ..................................................................................................... 30

XP24000/XP20000 Data Retention Utility User's Guide 3


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6 Support and Other Resources ............................................................ 31Related Documentation .............................................................................................................. 31Conventions for Storage Capacity Values ..................................................................................... 31HP Technical Support ................................................................................................................ 31Subscription Service .................................................................................................................. 32HP Websites ............................................................................................................................ 32Documentation Feedback ........................................................................................................... 32

A Acronyms and Abbreviations ............................................................. 33Index ................................................................................................. 35

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Figures

The Data Retention Window ..................................................................................... 151

Using Pop-up Commands to Change the Access Attribute (Step 1) ................................. 202Using Pop-up Commands to Change the Access Attribute (Step 2) ................................. 203

Term Setting Dialog Box .......................................................................................... 214

Preventing a Logical Volume from being Specified as a Secondary Volume ..................... 245

Allowing a Logical Volume to be Specified as a Secondary Volume ............................... 256

The Volume Detail Dialog Box .................................................................................. 277

Error Detail Dialog Box ............................................................................................ 308



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Tables

Access Attributes Displayed in the Window .................................................................. 91

Data Retention Window ........................................................................................... 152Volume List Details .................................................................................................. 173

Troubleshooting Data Retention Utility ........................................................................ 294

Acronyms and Abbreviations .................................................................................... 335

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1 About HP StorageWorks XP DataRetention Utility Operations

Data Retention Utility enables you to set access attributes for open-systems volumes. This chapterprovides an overview of setting access attributes.

Unless otherwise specified, the term storage system in this guide refers to the following disk arrays:

HP StorageWorks XP24000 Disk Array




The GUI illustrations in this guide were created using a Windows computer with the Internet Explorer

browser. Actual windows may differ depending on the operating system and browser used. GUIcontents also vary with licensed program products, storage system models, and firmware versions.

Data Retention Utility ComponentsTo use Data Retention Utility, you need:

the storage system

a computer that runs HP StorageWorks XP Remote Web Console (Remote Web Console computer)

a license key for the Data Retention Utility program product

HP StorageWorks XP RAID Manager

To perform Data Retention Utility operations, you must use the Remote Web Console software, whichis a Java application to be downloaded to a Remote Web Console computer. To use Remote WebConsole, you must attach your Remote Web Console computer to the storage system via a LAN, andthen make appropriate browser settings. To use Remote Web Console, you must enable the DataRetention Utility program product using the license key on the Remote Web Console computer. Fordetailed information, see the HP StorageWorks XP24000/XP20000 Remote Web Console UsersGuide.

You can use RAID Manager to make some Data Retention Utility settings. You can view some of theRAID Manager settings in the Data Retention Utility GUI. For details, see the HP StorageWorks XPRAID Manager Users Guide.

Data Retention Utility FunctionsThis section explains the functions of Data Retention Utility.

Access AttributesTo restrict read and write operations, you must assign an access attribute to each volume. DataRetention Utility enables you to assign one of the following access attributes to each volume:



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Read/Write

If a volume has the Read/Write attribute, open-systems hosts can perform both read and writeoperations on the volume.

You can use storage system copy software to copy data to volumes that have the Read/Write at-tribute. However, if necessary, you can prevent copying data to volumes that have the Read/Writeattribute.

All open-systems volumes have the Read/Write attribute by default.

Read Only

If a volume has the Read Onlyattribute, open-systems hosts can perform read operations, butcannot perform write operations on the volume.

You cannot use storage system copy software to copy data to volumes that have the Read Onlyattribute.

Protect

If a volume has the Protect attribute, open-systems hosts cannot access the volume. Open-systemshosts cannot perform either read or write operations on the volume.

You cannot use storage system copy software to copy data to volumes that have the Protect attribute.

Data Retention Utility does not allow you to assign any access attribute to:

mainframe volumes

volumes that are not mapped to physical devices

To assign access attributes to volumes, you use Remote Web Console to start Data Retention Utility,and then edit the access attributes in the Data Retention window.

For details on how to assign access attributes, see Changing the Access Attributes on page 19.

While the storage administrator can set access attributes to the volumes in any CUs (Control Units) inthe storage system, the storage partition administrator can set access attributes only to the volumesin CUs in the SLPR the storage partition administrator manages. Therefore, if you are a storage partitionadministrator and using the Data Retention window (see Figure 1 on page 15), only the CUs in yourSLPR are displayed in the window. The CUs in the SLPRs which are managed by other storage partitionadministrators are not displayed.

For detailed information on SLPR, see the HP StorageWorks XP24000/XP20000 Disk/Cache PartitionUsers Guide.

Data Retention Term FunctionIf you change the access attribute of a volume to Read Onlyor Protect, you will usually be prohibitedfrom changing the access attribute to Read/Write for a certain period of time. The Data Retentionwindow displays the words Retention Term to indicate the period during which attempts to changethe access attribute to Read/Write are prohibited.

You will be prompted to specify a retention term when you change the access attribute of a volumeto Read Onlyor Protect.

After you specify the retention term, you can extend the term, but cannot shorten the term. For detailson how to extend the retention term, see Extending the Data Retention Term on page 20. If youneed to shorten the retention term, you must ask your HP service representative to do so.

About HP StorageWorks XP Data Retention Utility Operations8


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Table 1 on page 9 is an example of access attributes in the window. This example shows the accessattributes of the volumes 00, 01, and 02.

Table 1 Access Attributes Displayed in the Window

ModePathsRetention

TermReservedS-VOLCapacityEmulationAttributeLDEV

-0--Enable58.59 GBOPEN-VRead/Write00

-02190 days-Disable58.59 GBOPEN-VRead Only01

Inv00 days-Disable58.59 GBOPEN-VProtect02

In Table 1 on page 9, for example, you cannot change the access attribute of volume #01 toRead/Write in the next 2,190 days because the retention term for this volume is 2,190 days. If youneed to change the access attribute of this volume to Read/Write, you must ask your HP servicerepresentative to do so.

Expiration Lock Function

You will be able to change the access attribute of a volume from Read Onlyto Read/Write or fromProtectto Read/Write when the retention term ends. Retention Term displays 0 days when the retentionterm is over. In Table 1 on page 9, for example, you can change the access attribute of volume #02to Read/Write because the retention term is over. However, if you enable expiration lockin the DataRetention window, attempts to change Read Onlyvolumes or Protectvolumes to Read/Write volumeswill fail even when the retention term is over. Expiration lock is disabled when you start Data RetentionUtility for the first time. To enable expiration lock, see Prohibiting Changes to Read/Write Even Whenthe Retention Term is Over (Enabling/Disabling the Expiration Lock Function) on page 22.

S-VOL Disable FunctionWhen storage system copy software copies data, the data on the copy destination volume (also known

as the secondary volume) will be overwritten. If a volume containing important data is specified as asecondary volume by mistake, storage system copy software can overwrite important data on thevolume and you could suffer loss of important data. Data Retention Utility enables you to avoid suchloss of data.

If you assign the S-VOL Disable attribute to a volume, storage system copy software will be unable tocopy data to that volume. Also, if you assign the Read Only attribute or Protect attribute to a volumeas an access attribute, any other write operations will be prohibited on that volume. For example,business application software will be unable to write data to such a volume.

To prohibit storage system copy software from copying data to a volume, but do not want to prohibitother write operations to the same volume, you must ensure that the volume has the Read/Writeattribute. Also, you must assign the S-VOL Disable attribute to that volume to prevent storage systemcopy software from copying data to the volume. For detailed information about how to do this, see

Protecting Logical Volumes Against Storage System Copy Operations (Setting the S-VOL DisableFunction) on page 22.

Notes:

Storage system copy software refers to HP StorageWorks XP Continuous Access Software, HPStorageWorks XP Continuous Access Journal Software, HP StorageWorks XP Business CopySoftware, and HP StorageWorks XP Snapshot Software.



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Secondary volumes (that is, copy destination volumes) are often referred to as S-VOLs in storagesystem documentation.

Reserve FunctionThe HP StorageWorks XP LUN Manager software enables Remote Web Console users to change LUpath configurations and command device configurations. However, if you use Data Retention Utilityto protect a volume, Remote Web Console users will be unable to change LU path settings andcommand device setting on the volume. For detailed information about how to prevent Remote Web

Console users from changing the settings, see Preventing Remote Web Console Users from ConfiguringLU Paths and Command Devices (Setting the Reserve Function) on page 25.

The Reserved column in the Data Retention window shows whether Remote Web Console users canchange LU path settings and command device settings on the volume.

If RAID Manager is installed on a host, you can change LU path settings and command device settingsfrom the host.

Interoperability with Other Products and FunctionsThis section provides information on using Data Retention Utility with other products.

HP StorageWorks XP LUN Expansion (LUSE)You cannot combine volumes that do not have the Read/Write attribute when you create a LUSEvolume. You can, however, assign an access attribute other than Read/Write to the resulting LUSEvolume.

You cannot release a LUSE volume that does not have the Read/Write attribute.

HP StorageWorks XP Virtual LVI/LUNYou cannot convert volumes that do not have the Read/Write attribute into spaces.

You cannot initialize customized volumes that do not have the Read/Write attribute.

RAID ManagerWhen you view the Data Retention window, some other user might be using RAID Manager to changethe access attribute of a volume. If the RAID Manager user changes the access attribute of a volumewhen you view the Data Retention window, you will be unable to change the access attribute of thevolume by using Data Retention Utility. Then, if you attempt to change the access attribute of thevolume by using Data Retention Utility, an error occurs. If an error occurs, click File and then Refreshon the menu bar of the Remote Web Console main window, and then retry changing the accessattribute of the volume.

Auto Start ProductsSome program products are likely to start automatically at the time specified by the user. For example,if an HP StorageWorks XP Auto LUN Software user or an HP StorageWorks XP Performance Monitoruser specifies the time for starting the monitor, the monitor will automatically start at the specifiedtime.

If any program product that can start automatically is enabled, you must do one of the following:



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perform Data Retention Utility operations when the program is not running

cancel the setting for the program start time



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2 Preparing for Data Retention UtilityOperations

This chapter explains preparation for Data Retention Utility operations.

Prerequisites and Restrictions for Data Retention UtilityWarning: Do not perform Data Retention Utility operations if any other program product is running.

Warning: Do not assign an access attribute to a volume if any job is manipulating data on the volume.If you assign an access attribute to such a volume, the job will possibly end abnormally.

Volumes which you cannot change the access attribute of:

Data Retention Utility does not enable you to change the access attribute of the following volumes: volumes that do not have any of the following emulation types (such as mainframe volumes):OPEN-3, OPEN-8, OPEN-9, OPEN-E, OPEN-K, OPEN-L, and OPEN-V

volumes that do not exist

volumes that are configured as command devices

volumes that are specified as Continuous Access S-VOLs*

volumes that are specified as Continuous Access Journal S-VOLs* or journal volumes

volumes that are specified as Business Copy S-VOLs*

volumes that are specified as S-VOL of Snapshot XP*

volumes that are reserved for the Auto LUN function

pool volumes

virtual volumes S-VOLs of HP StorageWorks XP Snapshot

NOTE:

You may change access attribute depending on the pair status. For details, see the correspondingdocuments.

Installing and Uninstalling Data Retention UtilityYou need to install Data Retention Utility using a license key to perform the Data Retention Utilityoperations on the Remote Web Console computer.

To install the Data Retention Utility license key:

1. Start the Remote Web Console Java application for the desired storage system.

For instructions, see the HP StorageWorks XP24000/XP20000 Remote Web Console UsersGuide.



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2. Enable the Data Retention Utility options on the Remote Web Console computer and on eachstorage system.

For instructions, see the HP StorageWorks XP24000/XP20000 Remote Web Console UsersGuide.

For details about these instructions and details on how to uninstall Data Retention Utility, see the HPStorageWorks XP24000/XP20000 Remote Web Console Users Guide.

Starting Data Retention UtilityThis section describes how to start the Data Retention Utility software.

CAUTION:

Do not perform Data Retention Utility operations if any other program product is running.

To start the Data Retention Utility software:

1. Log on to the SVP (Service Processor) to open the Remote Web Console main window. For detailedinformation, see the HP StorageWorks XP24000/XP20000 Remote Web Console Users Guide.

To assign access attributes, you must use a user account that has the write permission. If you usea user account that does not have the write permission, you will be able to view access attributesbut will be unable to assign access attributes.

2. Select Go, Data Retention, and then Data Retention from the menu bar of the Remote WebConsole main window.

The Data Retention window appears (see Figure 1 on page 15.

3. Change to Modify mode.

If you are going to implement any changes for Data Retention Utility, you must be in Modifymode. If you are inView mode, you can look at access attributes in the Data Retention window,but cannot implement any changes.

For detailed information on user accounts or Modify mode, see the HP StorageWorks

XP24000/XP20000 Remote Web Console Users Guide.

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3 Using the Data Retention Utility GUI

This chapter describes the various elements of the Data Retention Utility graphical user interface:

Data Retention Window on page 15

This chapter describes only the Data Retention Utility window and associated dialog boxes. For generalinformation on XP Remote Web Console features, see the HP StorageWorks XP24000/XP20000Remote Web Console User's Guide.

Data Retention WindowThe Data Retention window (Figure 1 on page 15) appears when you start Data Retention Utility. Thiswindow is the starting point for all Data Retention Utility operations.

To open the Data Retention Utility window, on the menu bar of the Remote Web Console main window

click Go, then Data Retention, and the Data Retention.

Figure 1 The Data Retention Window

Table 2 Data Retention Window

DescriptionItem

Select the LDKC (00 or 01) that contains the desired CU group(s).LDKC



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DescriptionItem

Select the CU group that contains the desired CU(s). Choose from the following CU groups:

00-3F

40-7F

80-BF

C0-FE

CU Group

The tree shows the list of CUs. Select the CU that contains the desired LDEV(s). The individualLDEVs in the CU group appear in the Volume list.

The tree displays only the CUs of the volumes to which the user can set access attribute.Therefore, when a partitioned-storage administrator is using the tree, the tree displays onlythe CUs of the SLPR that the partitioned-storage administrator manages.

Tree

See Volume List on page 16.Volume list

The target of the operation or the name of the operation is displayed after the colon (:).When no operation is performed, No Operation is displayed.

Operation

In the lower right corner of the Data Retention window, icons for each of the three types ofattributes are displayed with the number of volumes assigned these parameters.

Indicates a volume that has the Read/Write attribute. Indicates a volume that has the Read Only attribute.

Indicates a volume that has the Protect attribute.

Volume Icons

Lets you implement enhanced volume protection. When you enable the Expiration Lock, at-tempts to change access attribute from Read Onlyor Protectto Read/Write will fail evenafter the retention term is over.

The status of the Expiration Lock is displayed in two combinations of the settings. When youstart the Data Retention Utility for the first time, Disable -> Enable is displayed as the systemdefault.

Disable -> Enable: When this button is displayed, expiration lock is disabled. You canchange the access attribute to Read/Write when the retention term is over (that is, whenRetention Term displays 0 days). If you click the Disable -> Enable button, expiration lockwill be enabled, and the button will change to Enable -> Disable

Enable -> Disable: When this button is displayed, expiration lock is enabled. You cannotchange the access attribute to Read/Write, even when the retention term is over (thatis, even when Retention Term displays 0 days). If you click the Enable -> Disable button,expiration lock will be disabled, and the button will change to Disable -> Enable.

Expiration Lock

This button applies settings in the Data Retention window to the storage system.Apply

This button discards setting changes made beforeApply is clicked.Cancel

Volume List

The volume list appears in the right area of the Data Retention window when you select a CU in thetree. The volume list displays a list of volumes in the specified CU and enables you to find the accessattribute of each volume.

If two or more volumes are combined into a LUSE volume, Data Retention Utility displays the top LDEV,but does not display other LDEVs (other volumes) that are combined into the LUSE volume. For example,if three volumes 03, 04, and 05 in the CU 01 are combined into a LUSE volume, the volume list inthe Data Retention window displays the volume number 03, but does not display 04 and 05. To view

Using the Data Retention Utility GUI16


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all volumes that form a LUSE volume, seeViewing a List of Logical Volumes Combined into a LUSE Volume on page 26.

Table 3 Volume List Details

DescriptionItem

Displays volume numbers with the following icons :

Indicates a volume that has the Read/Write attribute.

Indicates a volume that has the Read Only attribute. Indicates a volume that has the Protect attribute.

Notes:

If # is displayed to the right of a volume number, the volume is an external volume. IfVisdisplayed to the right of a volume number, the volume is a virtual volume. If X is displayedto the right of a volume number, the volume is a virtual volume for XP Thin ProvisioningSoftware.

If two or more volumes are combined into a LUSE volume, the Data Retention Utility considersthe combined volumes as a single unit.

LDEV

Indicates the access attribute of each volume. These values can also be assigned using RAIDManager.

Attribute

Displays volume emulation types. If an asterisk and a number appear to the right of an emulationtype, the volume is a LUSE volume. For example, OPEN-V*36 indicates a LUSE volume in which36 volumes are combined.

Emulation

Displays the capacity (in gigabytes) of each volume; this value is shown to two decimal places.Capacity

Indicates whether the volume can be specified as a secondary volume (S-VOL), which is a copydestination volume for storage system copy operations (for example, XP Business Copy Software,XP Continuous Access Software). You can also use RAID Manager to specify whether eachvolume can be used as a secondary volume.

S-VOL

Indicates by a hyphen or the letters RAID Manger which tools can be used to set the LU pathsettings and command device settings.

A hyphen (-) indicates that RAID Manager and Remote Web Console can be used to makeLU path settings and command device settings. LUN Manager is required when you useRemote Web Console to make these settings.

RAID Managerindicates that RAID Manager can be used to make LU path settings andcommand device settings, but Remote Web Console cannot be used to do so.

Reserved

Displays the period (in days) when you are prohibited from changing access attribute toRead/Write. For example, if 500 days is displayed, attempts to change access attribute toRead/Write are prohibited in the next 500 days. If Unlimited is displayed, the retention termis extended indefinitely. If the retention term is 0 days, you can change access attribute toRead/Write. During the retention term, you can change Read Only to Protect, or vice versa.

Caution:Using Data Retention Utility, you can extend the retention term of the volume, but cannotshorten the retention term. For details on how to extend the retention term, see Extending theData Retention Term on page 20. If you need to shorten the retention term, you must ask your

HP service representative to do so.

RetentionTerm

Displays the number of LU paths to each volume.Paths



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DescriptionItem

Displays the mode that the RAID Manager user assigns to the volume.

Zerindicates that Zero Read Cap mode is assigned to the volume. If the Read Capacitycommand (which is a SCSI command) is issued to a volume in Zero Read Cap mode, it willbe reported that the capacity of the volume is zero.

Inv indicates that Invisible mode is assigned to the volume. If the Inquiry command (whichis a SCSI command) is issued to a volume in Invisible mode, it will be reported that thevolume does not exist. Therefore, the hosts will be unable to recognize the volume.

Zer/Inv indicates that both Zero Read Cap mode and Invisible mode are assigned to thevolume.

- (a hyphen) indicates that no mode is assigned by RAID Manager to the volume.

Mode

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4 Performing Data Retention UtilityOperations

This chapter explains the following Data Retention Utility operations:

Changing the access attributes (see Changing the Access Attributes on page 19)

Extending the data retention term (see Extending the Data Retention Term on page 20)

Prohibiting changes to Read/Write even when the retention term is over (enabling/disabling theexpiration lock function) (see Prohibiting Changes to Read/Write Even When the Retention Termis Over (Enabling/Disabling the Expiration Lock Function) on page 22)

Protecting logical volumes against storage system copy operations (setting the S-VOL Disablefunction) (see Protecting Logical Volumes Against Storage System Copy Operations (Setting theS-VOL Disable Function) on page 22)

Preventing Remote Web Console users from configuring LU paths and command devices (settingthe reserve function) (see Preventing Remote Web Console Users from Configuring LU Paths andCommand Devices (Setting the Reserve Function) on page 25)

Viewing a list of logical volumes combined into a LUSE volume (seeViewing a List of Logical Volumes Combined into a LUSE Volume on page 26)

Changing the Access AttributesTo change the access attributes of volumes and apply the changes to the storage system, take thefollowing steps:

Important:

If you change the access attribute of a volume to Read Onlyor Protect, you will usually be prohibitedfrom changing the access attribute to Read/Write for a certain period of time. The Data Retentionwindow displays the words Retention Term to indicate the period during which attempts to changethe access attribute to Read/Write are prohibited. If you need to change the access attribute toRead/Write during the retention term, you must ask your HP service representative to do so.

If you change the access attribute of a volume to S-VOL Disable, storage system copy softwarewill be unable to copy data to the volume.

To change access attributes of one or more volumes:

1. Ensure that you are in Modify mode. For detailed information, see the HP StorageWorksXP24000/XP20000 Remote Web Console Users Guide.

2. In the Data Retention window (Figure 1 on page 15), select an LDKC number from the LDKC

drop-down list.3. From the CU Group drop-down list, select a group to which a CU belongs.

The tree displays a list of CUs in the specified CU group.

4. Select a CU from the tree.

The volume list displays a list of volumes in the specified CU.

5. Select and right-click a volume whose access attribute you want to change.



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You may select multiple volumes.

6. SelectAttribute in the pop-up menu, and then select the desired access attribute from the submenu(Figure 2 on page 20). If you select Read Only or Protect, you must also take the following steps:

a. In the Term Setting dialog box (Figure 4 on page 21), enter the desired retention term.

To protect the volume indefinitely, select Unlimited.

Note: If you select Unlimited, you will need to ask your HP service representative to changethe retention term when you want to change it.

b. Select OKto close the Term Setting dialog box.

The volume is displayed in blue and italics when the access attribute changes. The volume iconalso changes when the access attribute changes.

To change the access attribute of other volumes, repeat this step (see Figure 3 on page 20).

7. To change the access attributes of volumes in another CU, repeat steps 2 through 6. If not, goto the next step.

Note: The settings in the window have not been applied to the storage system.

8. To apply the settings, clickApply in the Data Retention window.

A message appears and asks if you want to apply the settings to the storage system.

9. Click OK.

The settings are applied to the storage system.

Figure 2 Using Pop-up Commands to Change the Access Attribute (Step 1)

Figure 3 Using Pop-up Commands to Change the Access Attribute (Step 2)

Extending the Data Retention TermIf you change the access attribute of a volume to Read Onlyor Protect, you will usually be prohibitedfrom changing the access attribute to Read/Write for a certain period of time. The Data Retentionwindow displays the words Retention Term to indicate the period during which you are prohibitedfrom changing the access attribute to Read/Write. The following procedure enables you to extendthe retention term.

Performing Data Retention Utility Operations20


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Important: Data Retention Utility does not enable you to shorten the retention term. To shorten theretention term, you must ask your HP service representative to do so.

To extend the retention term of a volume:

1. Ensure that you are in Modify mode.

For detailed information, see the HP StorageWorks XP24000/XP20000 Remote Web ConsoleUsers Guide.

2. In the Data Retention window (Figure 1 on page 15), select an LDKC number from the LDKCdrop-down list.

3. From the CU Group drop-down list, select a group to which a CU belongs.



The volume list displays a list of volumes in the specified CU. The volume list displays the RetentionTerm column.

5. Select and right-click the desired volume, and select Retention Term from the pop-up menu toopen the Term Setting dialog box (Figure 4 on page 21).

6. In the Term Setting dialog box, specify the retention term.

To extend the retention term indefinitely, select Unlimited.

Note: If you select Unlimited, you will need to ask your HP service representative to change the

retention term when you want to change it.

7. Select OKto close the Term Setting dialog box.

The settings that you have made are displayed in blue and italics.

Note: The settings have not been applied to the storage system.



9. Click OK.


Term Setting Dialog BoxThe Term Setting dialog box (Figure 4 on page 21) enables you to specify a retention term, which isthe period during which attempts to change the access attribute to Read/Write are prohibited.

Figure 4 Term Setting Dialog Box

The Term Setting dialog box displays the following items: Term: The following boxes enable you to specify a retention term.

The years box enables you to specify the number of years within the range of 0 to 60. Notethat Data Retention Utility counts one year as 365 days, whether or not the year is a leap year.

The days box enables you to specify the number of days within the range of 0 to 21900.



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For example, if 10 years 5 days or 0 years 3655 days is specified, the access attribute of thevolume cannot be changed to Read/Write during the next 3,655 days.

Unlimited: This button extends the retention term indefinitely.

OK: This button closes the Term Setting dialog box and applies the settings in the Term Settingdialog box to the Data Retention window. Note that this button does not apply the settings to thestorage system. To apply the settings to the storage system, you must clickApply in the Data Re-tention window.

Cancel: This button discards the settings in the Term Setting dialog box and closes the Term Setting

dialog box.

Prohibiting Changes to Read/Write Even When the RetentionTerm is Over (Enabling/Disabling the Expiration Lock Function)

If you follow the procedure below, none of the Read Onlyvolumes and Protectvolumes can bechanged to Read/Write volumes, even after the retention term ends.

To prohibit attempts to change the access attribute to Read/Write even when the retention term isover:



2. In the Data Retention window (Figure 1 on page 15), locate the button that is displayed to theright of Expiration Lock.

If the button is Disable -> Enable, go to the next step.

If the button is Enable -> Disable, you do not need to follow the rest of this procedure becauseattempts to change the access attribute to Read/Write are already prohibited.

3. Select Disable -> Enable.


4. Click OK.

The button changes to Enable -> Disable, and then expiration lock is enabled. When expirationlock is enabled, the access attributes of volumes cannot be changed to Read/Write even afterthe retention term ends.

Notes:

If you disable expiration lock, the access attribute can be changed to Read/Write after the retentionterm ends. To disable expiration lock, click Enable -> Disable to the right of Expiration Lock.

Sometimes nothing happens when you click Disable -> Enable or Enable -> Disable. To get out ofthis situation, see General Troubleshooting on page 29.

Protecting Logical Volumes Against Storage System Copy

Operations (Setting the S-VOL Disable Function)Assigning the Read Only or Protect attribute is one of the ways to prevent data in a volume from beingoverwritten by storage system copy software. Volumes having the Read Only or Protect attribute areprotected against these copy operations, but are also protected against any other form of writeoperations.



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To protect a volume only against storage system copy operations, you must ensure that the volumehas the Read/Write attribute and then follow the procedure inPreventing a Read/Write Volume from Becoming a Secondary Volume on page 23 to assign theS-VOL Disable attribute to the volume. This procedure enables you to prohibit a volume from beingspecified as a secondary volume (that is, a copy destination volume) for storage system copy operations.

To allow the volume to be specified as a secondary volume (that is, a copy destination volume), youmust ensure that the volume has the Read/Write attribute and then follow the procedure inSpecifying a Read/Write Volume as a Secondary Volume on page 24.

Preventing a Read/Write Volume from Becoming a Secondary VolumeTo prevent a Read/Write volume from being specified as a secondary volume:







The volume list displays a list of volumes in the specified CU. Look at the S-VOL column of thevolume list to find whether volumes can be specified as secondary volumes.

The S-VOL column displays Enable if the volume can be specified as a secondary volume.

The S-VOL column displays Disable if the volume cannot be specified as a secondary volume.

5. Select and right-click the desired volume, and select S-VOL and then Disable from the pop-upmenu.

The volume is displayed in blue and italics (Figure 5 on page 24).

6. To prevent other volumes from being specified as a secondary volume, repeat steps 2 through5. If not, go to the next step.

Note: The settings have notbeen applied to the storage system.7. To apply the settings, clickApply in the Data Retention window.

A message appears and asks if you want to apply the settings that you have made.

8. Click OK.


In some XP software manuals, S-VOL Disable refers to the status which Disable is displayed inthe S-VOL column in the Data Retention window.



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Figure 5 Preventing a Logical Volume from being Specified as a Secondary Volume

Specifying a Read/Write Volume as a Secondary VolumeTo allow a Read/Write volume to be specified as a secondary volume (that is, a copy destinationvolume):




3. From the CU Group drop-down list, select a group to which a CU belongs.The tree displays a list of CUs in the specified CU group.


The volume list displays a list of volumes in the specified CU. Look at the S-VOL column of thevolume list to find whether volumes can be specified as secondary volumes.

The S-VOL column displays Enable if the volume can be specified as a secondary volume.

The S-VOL column displays Disable if the volume cannot be specified as a secondary volume.

5. Select and right-click the desired volume, and select S-VOL and then Enable from the pop-upmenu.

The volume is displayed in blue and italics (Figure 6 on page 25).

6. To allow other volumes to be specified as a secondary volume, repeat steps 2 through 5. If not,go to the next step.

Note: The settings have notbeen applied to the storage system.


A message appears and asks if you want to apply the settings that you have made.

8. Click OK.


In some XP software manuals, S-VOL Disable refers to the status which Disable is displayed inthe S-VOL column in the Data Retention window.



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Figure 6 Allowing a Logical Volume to be Specified as a Secondary Volume

Preventing Remote Web Console Users from Configuring LUPaths and Command Devices (Setting the Reserve Function)

If you perform the following operation, all the Remote Web Console users (including you) will beunable to make LU path settings and command device settings on the specified volume. Note that, ifRAID Manager is installed on a host, the host can be used to make LU path settings and commanddevice settings on the volume.

To prevent Remote Web Console users from making LU path settings and command device settings:







The volume list displays a list of volumes in the specified CU.

If the Reserved column displays a hyphen (-), Remote Web Console users can change LU pathsettings and command device settings on the volume.

If the Reserved column displays RAID Manager, Remote Web Console users cannot changeLU path settings and command device settings on the volume. When this column displaysRAID Manager, RAID Manager is required to make LU path settings and command devicesettings on the volume.

5. Check the Reserved column for volumes indicated by a hyphen, and then select and right-clickthe desired volume, and select Reserved and then Set from the pop-up menu.

The Reserved column displays RAID Managerfor the selected volume. The volume is displayedin blue and italics.

6. To prevent Remote Web Console users from configuring other volumes, repeat steps 2 through5. If not, go to the next step.

Note: The settings have notbeen applied to the storage system.

7. To apply the settings, clickApply in the Data Retention window.A message appears and asks if you want to apply the settings that you have made.

8. Click OK.


Tip: To permit Remote Web Console users to make LU path settings and command device settingson a volume, look for volumes displayed by RAID Managerin the Reserved column, select and right-click



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the desired volume, and then select Reserved and Release from the pop-up menu. Finally, confirm thatthe Reserved column displays a hyphen (-), and then clickApply.

If you need to release a volume, call HP technical support.

Viewing a List of Logical Volumes Combined into a LUSEVolume

LUN Expansion (LUSE) combines two or more volumes to form a LUSE volume. If volumes are combinedinto a LUSE volume in your storage system, the Data Retention window (Figure 1 on page 15) doesnot display all the combined volumes, but displays only the top LDEV. To display all the volumescombined into a LUSE volume, follow the procedure below.

The top LDEVis the volume whose LDEV number is the smallest of all the volumes combined into aLUSE volume. For detailed information about LUSE volumes, see the HP StorageWorksXP24000/XP20000 LUN Expansion Users Guide.

To view a list of volumes combined into a LUSE volume:



Note: If you are in View mode, you will be unable to finish this procedure.

2. In the Data Retention window (Figure 1 on page 15), locate a LUSE volume.

To locate a LUSE volume, look at the Emulation column of the volume list. If the volume is a LUSEvolume, an asterisk (*) and a number appear to the right of the emulation type. For example,OPEN-V*3 indicates a LUSE volume consisting of three OPEN-V volumes.

3. Select and right-click the LUSE volume. Next, selectVolume Detail from the pop-up menu.

The Volume Detail dialog box (Figure 7 on page 27) appears. This dialog box displays all thevolumes combined into the same LUSE volume.

4. View the dialog box contents and then click OKto close the dialog box.

Volume Detail Dialog BoxThe Volume Detail dialog box (Figure 7 on page 27) enables you to view a list of volumes combinedinto a LUSE volume. For detailed information about LUSE volumes, see the HP StorageWorksXP24000/XP20000 LUN Expansion Users Guide.



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Figure 7 The Volume Detail Dialog Box

The Volume Detail dialog box displays the following items:

LDKC:CU:LDEV: This column lists the LDKC number, CU number, and LDEV number (volume number)of volumes combined into a LUSE volume.

S-VOL: This column indicates whether each volume can be specified as a copy destination volume(that is, a secondary volume) for storage system copy operations. Enable appears if the volumecan be specified as a copy destination volume. Disable appears if the volume cannot be specifiedas a copy destination volume.

Close: This button closes the Volume Detail dialog box.



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5 Troubleshooting

This chapter explains troubleshooting problems with Data Retention Utility.

General TroubleshootingIf an error occurs with Data Retention Utility, the Error Detail dialog box appears (see Figure8 on page 30). The Error Detail dialog box displays error locations and error messages. For informationabout how to remove errors, see the HP StorageWorks XP24000/XP20000 Remote Web ConsoleError Codes.

Table 4 on page 29 lists possible problems with Data Retention Utility operations and probablesolutions to the problems.

Table 4 Troubleshooting Data Retention Utility

Probable Causes and SolutionsProblems

If volumes are combined into a LUSE volume, thevolume list displays only the top LDEV of thecombined volumes. To view all the volumescombined into a LUSE volume, seeViewing a List ofLogical Volumes Combined into a LUSE Volume onpage 26 and follow the instructions in that section.

You cannot find some volumes in the volume list ofthe Data Retention window.

You have been making changes in the DataRetention window, but the changes have not beenapplied to the storage system.

The changes you have been making are displayed

in blue and italics. If you cannot find the changes,scroll the volume list up and down. If you still cannotfind the changes, select another CU from the treeand then scroll the volume list up and down.

If changes are found, do one of the following:

ClickApply to apply the changes to the storagesystem.

Click Cancel to discard the changes.

The Disable -> Enable button or the Enable -> Disablebutton to the right of Expiration Lock is grayed out.Nothing happens when you click the button.

The volume is protected by the Read Only attrib-ute. A write failure is reported as an error mes-sage.

The volume is protected by the Protect attribute.Read (or write) failure is reported as an errormessage.

Open-systems hosts cannot read from or write to avolume.



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Probable Causes and SolutionsProblems

The volume is protected by the Read Only attrib-ute. A write failure is reported as a Write Inhibitcondition.

The volume is protected by the Protect attribute.Read (or write) failure is reported as a cc=3condition.

Mainframe hosts cannot read from or write to avolume.

Error Detail Dialog Box

Figure 8 Error Detail Dialog Box

The Error Detail dialog box displays the following items:

Location: This column indicates where errors occur. If an error occurs with a volume, this columndisplays the LDKC number, CU number, and LDEV number (volume number).

Error Message: This column displays the error message. For information about how to remove errors,see the HP StorageWorks XP24000/XP20000 Remote Web Console Messages.

Close: This button closes the Error Detail dialog box.

The Error Detail dialog box does not display Remote Web Console error messages. To find inform-ation about Remote Web Console errors and the solutions, see the HP StorageWorksXP24000/XP20000 Remote Web Console Users Guide.

Calling HP Technical SupportIf you need to call HP technical support, be sure to provide as much information about the problemas possible, including the circumstances surrounding the error or failure, the exact content of any

messages displayed on the Remote Web Console computer, and the severity levels and referencecodes of the R-SIMs on the R-SIM panel.

For worldwide technical support information, see the HP support website:

http://www.hp.com/support

Troubleshooting30
http://www.hp.com/supporthttp://www.hp.com/support


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6 Support and Other Resources

Related Documentation HP StorageWorks XP24000 Disk Array Owners Guide

HP StorageWorks XP20000 Disk Array Owners Guide

HP StorageWorks XP24000/XP20000 Remote Web Console Users Guide

HP StorageWorks XP RAID Manager User's Guide

HP StorageWorks XP24000/XP20000 LUN Expansion User's Guide

You can find related HP StorageWorks documents from the Manuals page of the HP Business SupportCenter website:

http://www.hp.com/support/manuals .

In the Storage section, click Storage Software and then select the product.

Conventions for Storage Capacity ValuesHP XP storage systems use the following values to calculate physical storage capacity values (harddisk drives):

1 KB (kilobyte) = 1,000 bytes

1 MB (megabyte) = 1,0002 bytes

1 GB (gigabyte) = 1,0003 bytes

1 TB (terabyte) = 1,0004 bytes

1 PB (petabyte) = 1,0005 bytes

HP XP storage systems use the following values to calculate logical storage capacity values (logicaldevices):

1 KB (kilobyte) = 1,024 bytes

1 MB (megabyte) = 1,0242 bytes

1 GB (gigabyte) = 1,0243 bytes

1 TB (terabyte) = 1,0244 bytes

1 PB (petabyte) = 1,0245 bytes

1 block = 512 bytes

HP Technical SupportFor worldwide technical support information, see the HP support website:

http://www.hp.com/support

Before contacting HP, collect the following information:

http://www.hp.com/support/manualshttp://www.hp.com/supporthttp://www.hp.com/supporthttp://www.hp.com/support/manuals


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Product model names and numbers

Technical support registration number (if applicable)

Product serial numbers

Error messages

Operating system type and revision level

Detailed questions

Subscription ServiceHP recommends that you register your product at the Subscribers Choice for Business website:

http://www.hp.com/go/e-updates

After registering, you will receive e-mail notification of product enhancements, new driver versions,firmware updates, and other product resources.

HP WebsitesFor additional information, see the following HP websites:

http://www.hp.com

http://www.hp.com/go/storage

http://www.hp.com/support/manuals

Documentation FeedbackHP welcomes your feedback.

To make comments and suggestions about product documentation, send a message [email protected]. All submissions become the property of HP.

Support and Other Resources32
http://www.hp.com/go/e-updateshttp://www.hp.com/http://www.hp.com/go/storagehttp://www.hp.com/support/manualshttp://www.hp.com/support/manualshttp://www.hp.com/go/storagehttp://www.hp.com/http://www.hp.com/go/e-updates


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A Acronyms and Abbreviations

Table 5 Acronyms and Abbreviations

control unitCU

input/outputI/O

identificationID

gigabytesGB

kilobytesKB

local-area networkLAN

logical deviceLDEV

logical disk controllerLDKC

logical unitLU

logical unit numberLUN

LU Size ExpansionLUSE

megabytesMB

petabytesPB

secondary volumeS-VOL

storage logical partitionSLPR

service processorSVP

volume management areaVMA



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Acronyms and Abbreviations34


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Index

Aaccess attributes

changing, 19example, 9restrictions , 13

Attribute command, 20Auto LUN

notes for users, 10

Ccc=3 condition, 30

conventionsstorage capacity values, 31CU Group, 16

DData Retention window, 15dialog boxes

Error Detail dialog box, 30Term Setting dialog box, 21

Volume Detail dialog box, 27Disable command (in the S-VOL menu), 23document

related documentation, 31documentation

HP website, 31providing feedback, 32

Eemulation types, 13Enable command (in the S-VOL menu), 24Error Detail dialog box, 30expiration lock, 9expiration lock, 22

Hhelp

obtaining, 31HP

technical support, 31

Iicon, 17

LLDKC, 15LUN Expansion

notes for users, 10LUSE

notes for users, 10viewing volumes combined, 26

PPerformance Monitor

notes for users, 10Protect attribute, 8

RRAID Manager, 18

notes for users, 10Read Only attribute, 8Read/Write attribute, 8related documentation, 31

Release command (in the Reserved menu), 26reserved, 10Reserved menu, 25retention term, 8, 17, 19, 20

SS-VOL, 10S-VOL Disable, 9secondary volume, 9Set command (in the Reserved menu), 25starting Data Retention Utility, 14storage capacity values

conventions, 31storage system copy software, 22storage system copy software, 9storage systems

supported models, 7Subscriber's Choice, HP, 32



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Ttechnical support, 32

HP, 30, 31Term Setting dialog box, 21top LDEV, 26troubleshooting, 29

VVirtual LVI/LUN

notes for users, 10Volume Detail command, 26Volume Detail dialog box, 27volume emulation types, 13

Volume List, 16

Wwebsites

HP, 32HP Subscriber's Choice for Business, 32product manuals, 31

windowsData Retention window, 15

Write inhibit condition, 30write permission, 14

data retention utility

Documents