avoiding storage service disruptions with availability ...€¦ · hp 3par case study summary...
TRANSCRIPT
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Avoiding Storage Service Disruptionswith Availability Intelligence
Brent Phillips, Managing Director, AmericasBrett Allison, Director of Technical Services
www.intellimagic.com
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Today’s Agenda
1. “Availability Intelligence” for the storage infrastructure‒ For EMC, IBM, HP, HDS block storage, and Cisco/Brocade Fabric
2. Modeling storage performance
3. Avoiding and resolving problems
4. Availability Intelligence as a Service
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1. Availability Intelligence for Data Storage
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We are inspired by creating intelligence
that illuminates the risks hiding inside your IT infrastructure.
“Any sufficiently advanced technology is indistinguishable from magic”
Arthur C. Clarke, 1962
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Storage Availability Today: Either Good or Bad
Full Engageds
Little
Panic Scattered
Stress& Focus
BrainStatus
Available
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The Missing Stage: About to Be Bad
Little
Healthy
Panic
Engaged
Scattered
Stress & Focus
BrainStatus
Available
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Seeing Threats to Continuous Availability• Question: Which has better intelligence to avoid outages:
‒ A 20 thousand Dollar automobile; or ‒ A SAN storage infrastructure costing millions of Dollars?
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Predictable
[CATEGORY NAME]
Incidents Leading to Application Unavailability
Response for Unpredictable:
• Find the problem quicker
• Accelerate the problem fix
Response for Predictable:
• Avoid incident with proactive action
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Increasing the Predictable Portion
Predictable
[CATEGORY NAME]
What would be the impact on:1. Your IT staff?2. Your Employees?3. Your Customers?
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Time
Response Time
Your existing monitors look at symptoms
here, only after users experience problems
Your existing monitors look at symptoms
here, only after users experience problems
SLA Pe
rforman
ce
IT Infrastructure Availability Monitoring Today
Easy metric to get, but is an effect,
not a cause
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Availability Intelligence identifies risk here, before
response time suffers
Availability Intelligence identifies risk here, before
response time suffers
© IntelliMagic 2014
Time
Response Time
Sub‐component Saturation
SLA Pe
rforman
ce
Monitoring with Availability Intelligence
Requires evaluating every data point
with expert domain knowledge about every component
Easy metric to get, but is an effect,
not a cause
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12© IntelliMagic 2014
Time
Response Time Sub‐component Saturation
SLA Pe
rforman
ce
Most infrastructure “fires” can be prevented by
intervening here
Most infrastructure “fires” can be prevented by
intervening here
Changing the Outcome - Avoiding Disruptions
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What: Foreknowledge about hidden threats to availability
Why: To better protect continuous availability at primary site by1. Avoiding incidents (make more of them predictable)2. Accelerating the resolution (reduce MTTR)
How: Use built-in expert domain knowledge in automaticanalysis of the performance and configuration data
What is Availability Intelligence?
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• It is not enough to only have:‒ Easier, nicer graphs, visualizations‒ Statistical analysis (as common w/ ITOA - IT Operations Analytics)
• Rather, understanding what the data means for risk requires:‒ HW component knowledge (as gained from performance modeling)‒ Good or Bad? and rate the risk of unavailability‒ How to derive new, meaningful metrics out of the raw data‒ Best practices to configure, manage infrastructure‒ How to visualize the risk and problems in the infrastructure
What Availability Intelligence Requires
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Illuminating Threats Inside the Storage Arrays
Storage Array Response
Times
Within Array
Between Arrays
Imbalance?
Application Workloads
Config or Failure
Changes?Disk Device
Loads
FW Bypass, etc.
Back-end,Cache
AdapterUtilization
Fibre Switch Errors
Front-endLag
Measure:
Lead Measures:Lead Measures:
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7 Areas to Apply Expert Domain Knowledge
Benefits1. Avoid Incidents2. Accelerate fixes
Sample actions:• Rebalance work• Fix lost redundancy• Isolate change• Correct error • Hardware upgrade
Machine-Generated
Data
ExpertStorage HW Knowledge
+Availability Intelligence
Automation & Visualization
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The Power of Knowing Constantly with Automation
• Assessing risk every interval, for every device, in every data center
• ITIL v3 definition Capacity Management is not achievable w/o automation: – The Process responsible for ensuring that the Capacity of IT Services and the IT
Infrastructure is able to deliver agreed Service Level Targets in a Cost Effective and timely manner… considers all Resources required to deliver the IT Service...
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Data Center Rollups of KRI’s - Key Risk Indicators
18© IntelliMagic 2014
Disk Storage Systems
Performance Metrics
Key Risk Indicators
Highest Rating for this Dashboard
Consolidate individual ratings on infrastructure resources into data center views to see risk across enterprise at a glance
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Visualizing Risk to Continuous Availability
What does the data mean for your infrastructure availability?Automatic rating of key metrics according to built-in expert knowledge, to obtain intelligence about threats you can use to protect availability
No Border, No Rating Green Border, GoodYellow Border, Early Warning
Red Border, Performance Exceptions
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Rating the Risk using Expert Domain Knowledge
Based on straight thresholds where appropriate (like hardware limits)
Based on dynamic thresholds where the limits also depend on
workload characteristics
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2. Modeling Storage Performance
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IntelliMagic Direction• Predictive model for exact storage configurations• What we model:
‒ Separate hardware and workload‒ Predict what happens on new storage system hardware‒ Predict what happens when workload changes
• What can we do (may require services too):‒ Model to other SAN box, other drive technology‒ Model Cache size‒ Model Automatic tiering, Help assess drive mix
• based on volume data‒ Model Compression impact (IBM SVC)
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Storage Performance Modeling Concepts
Configuration
Workload
Performance
Essentially the goal is to solve the following equation:
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Abstraction of the Configuration
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Abstraction of the Workload
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IntelliMagic Direction: Under the Covers
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Model Merge and Migrate Options• Using different configuration options
‒ For example, VMAX 40K, HDS VSP, DS8870 (16 core)
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Predict scalability
• Project the growth different configurations can safely handle
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3. Avoiding and Resolving Problems
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3.1 Case Study: “Run Away Query”
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Front-end Dashboard – Warning High Front-end Read Response Time
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Drill Down to the Multi-Charts
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VOLUME-000119, VOLUME-000118, VOLUME-000063, VOLUME-000196 doing ~100 MB/sec
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Who is Doing the Work and is it Necessary?
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Storage Pool Front-end Dashboard After an Index was Added
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Run-Away Volumes are Gone!
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3.2 Case Study: “Fabric Contention”
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How Do You Quickly Identify Strained Fabric Ports?
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3.3 Case Study: “Auto-tier Confusion”
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HP 3PAR – Adaptive OptimizationCommon
Provisioning Groups (CPGs):
Groupings of similar LDs for provisioning
CPG_DB_SSD_R5_3plus1_AO
CPG_DB_450gb_R5_3plus1_AO
CPG_900gb_R6_6plus2_AO
Performance: Biases moving data to the fastest tierBalanced: Balances between performance and cost
Tier 0 CPG
Tier 1 CPG
Tier 2 CPG
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Distribution of IOPS Across AO/CPGs
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Auto-tiering – How well balanced is it?
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HP 3PAR Case Study SummaryFinding Recommendations 1. Too much workload on 450s2. Not enough workload on
900s or SSDs
1. Enable the Tier 1 Warning Limitand set it to a lower amount of space than is currently in use for the Tier 1 CPG. This should force capacity from the 450 GB 10K RPM drives to the 900 GB 10K RPM drives.
2. Set Cost mode for BASE_ESX_AO
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4. Availability Intelligence as a Service
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• Incorporates frequently updated hardware knowledge • Very quick time to results (~24 hours)• Okay for security - no PII in infrastructure measurement data• Easy dissemination of intelligence visualizations• Easy access to expert consultants
Availability Intelligence as a Service
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• Creating the world’s best intelligence about performance and availability risk in your infrastructure
• 20+ year history of delivering solutions for deep infrastructure analysis
• Privately held, financially independent
• Customer centric, responsive
• Solutions used daily in some of the world’s largest data centers
IntelliMagic
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Example Customer – Schaeffler76,000 Employees; 180 Locations; 50 Countries
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Outsmart Unavailability with the world’s best intelligence about the current levels of risk hiding in your infrastructure.
A new layer of protection to better maintain continuous availability.
Easily accessible via SaaS.
For questions/more details, contact:[email protected]
Conclusion
“Any sufficiently advanced technology is indistinguishable from magic”
Arthur C. Clarke, 1962
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Join us in La Jolla, for the 2016 CMG Conference!
November 7th to 10th 2016 at Hyatt Regency in La Jolla, CA
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IntelliMagic Vision as a Service Architecture