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1IBM Systems Technical Events | ibm.com/training/events
© Copyright IBM Corporation 2017. Technical University/Symposia materials may not
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Data optimization: How to verify your storage is being used efficiently
• Tony Pearson• Master Inventor and Senior IT Architect• IBM Corporation
• Bryan Odom
• Technical Pre Sales
• IBM Corporation
2IBM Systems Technical Events | ibm.com/training/events
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� This session explores three scenarios for optimizing storage and using the thousands of performance data records that you have collected but have no time to examine in detail. Based on real-world customer experiences with the analytics functions in Spectrum Control Advanced Edition, we share key scenarios that show how you can leverage the Advanced Edition to help you in each of these cases:
1. When you need more storage what type and tier does you workload actually need?
2. After new storage added, what's the best way to evenly redistribute the workload?
3. When it's time to retire an aging storage device, where should you move the volume to?
Abstract
3IBM Systems Technical Events | ibm.com/training/events
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This week with Tony Pearson
Day Time Topic
Tuesday 13:45Introduction to IBM Cloud Object Storage System and
its Applications (powered by Cleversafe)
Wednesday
9:00 IBM Hybrid Cloud Storage Solutions
10:15Data optimization: How to verify your storage is being
used efficiently
15:00 Managing Risks with Data Footprint Reduction
4IBM Systems Technical Events | ibm.com/training/events
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be reproduced in whole or in part without the prior written permission of IBM.
Device Perspective:Looking at storage
environment from the
device level, for
performance and
replication functions
Data Perspective:Looking at storage
environment from the
host level, for data
stored in file systems
and databases
Fabric Perspective:Looking at storage environment from the
fabric level, how it all gets connected together
IBM Spectrum Control – Different Perspectives
5IBM Systems Technical Events | ibm.com/training/events
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be reproduced in whole or in part without the prior written permission of IBM.
IBM Spectrum Control and Virtual Storage Center
IBM Virtual Storage Center
• Storage Analytics• Policy-based
Automation• Service level
provisioning
IBM Spectrum Control Advanced Edition
IBM Spectrum Control Base Edition• VMware
IBM Spectrum Virtualize
IBM Spectrum Control Standard Edition• Capacity Planning
and Provisioning• Performance
Monitoring and Alerts
IBM Copy Services Manager
Base Edition
IBM Spectrum Snapshot
StandardEdition
IBM Spectrum Snapshot
StandardEdition
IBM Spectrum Control Storage Insights
• Reclaim space• Optimize data
placement• Monitor capacity
and performance
On-premises
Off-premises
6IBM Systems Technical Events | ibm.com/training/events
© Copyright IBM Corporation 2017. Technical University/Symposia materials may not
be reproduced in whole or in part without the prior written permission of IBM.
Spectrum Control Advanced Analytics
� Cloud Configuration
– Assigning Tiers to storage
– Creating service classes
� Provisioning
– Leveraging service classes to provision storage
– Prevents create a hot spot for new volumes
� Optimization
– Volume migration based on work load at the volume or pool level
� Data Transformation
– Migrating volumes based on workload
– Migrating volumes to newer hardware
� Reclamation * New in Spectrum Control since Version 5.29
– Identifying orphaned LUNs that can be reclaimed
7IBM Systems Technical Events | ibm.com/training/events
© Copyright IBM Corporation 2017. Technical University/Symposia materials may not
be reproduced in whole or in part without the prior written permission of IBM.
Is your data on the ‘right’ storage tier?
� Requirements change over time
� Data owners are risk averse
� Users don’t see the total cost
� Rationing resources is unpopular
… but the biggest challenge has been:
� No objective way to determine what the ‘right
tier’should be!
…so data stays on top tier storage (expensive)
• Resources that should be spent on innovation
are wasted on infrastructure inefficiencies
Challenges:
50-60%
Optimal Storage Tier Distribution
�Tier 0
�Tier 2
�Tier 3
�Tier 1
20-25%
15-20%
1-5%
�-�0 �-�1%
Typical Storage Tier Distribution
70%
�Tier 0
�Tier 2
�Tier 3
�Tier 1
Storage Optimization: Tiering Overview
8IBM Systems Technical Events | ibm.com/training/events
© Copyright IBM Corporation 2017. Technical University/Symposia materials may not
be reproduced in whole or in part without the prior written permission of IBM.
Benefits of using Spectrum Control
� Reduced labor costs
– Helps to identify problems in the storage environment
– Single step execution reduces multiple manual steps needed to resolve issues
– Scheduled execution enable optimizations to be run at less disruptive times without
manual oversight
� Reduced storage costs
– Re-tiering and balancing will result in a better utilized storage environment
– Transform actions can re-characterize volumes to achieve higher storage utilization
� Proactive and reactive performance resolution
– Identifies and addresses performance problems caused by unbalanced storage pools
and improperly tiered volumes
9IBM Systems Technical Events | ibm.com/training/events
© Copyright IBM Corporation 2017. Technical University/Symposia materials may not
be reproduced in whole or in part without the prior written permission of IBM.
SVC Easy Tier versus Spectrum Control Analytics
� Why should you not simply create one hybrid storage pool in SVC?
Here are some reasons that might prevent you from using the most easiest
setup of a tiering implementation with just one large hybrid storage pool:– You might have more than one location, so you will need more than one storage pool
– You might have to separate internal customers from one another (multi tenancy) so you need more than one pool
– If availability is a concern for you, than you probably don’t want to add more than one storage system into one pool
– Workload isolation
– If you have: You will likely use:
or a combination of Easy Tier and VSC Tiering because the two are complementary
Use Easy Tier
Use Spectrum Control
– A small number of pools– Only hybrid pools (with mirroring)
– Many different drive technologies:SSD/Flash, 146GB 15krpm, 600GB 10krpm, 1,2TB 10krpm,2TB NL-SAS, 4 TB NL-SASand/or multiple RAID levels
10IBM Systems Technical Events | ibm.com/training/events
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be reproduced in whole or in part without the prior written permission of IBM.
1. When you need more storage capacity, what type and tier does you workload actually need?
2. After new storage added, what's the best way to evenly redistribute the workload?
3. When it's time to retire an aging storage device, where should you move the volume to?
Use Cases
11IBM Systems Technical Events | ibm.com/training/events
© Copyright IBM Corporation 2017. Technical University/Symposia materials may not
be reproduced in whole or in part without the prior written permission of IBM.
Storage Optimization: Tiering across pools
Spectrum Control will only give one recommendation per volume.
Volume movement could be up or down multiple tiers based on performance data analysis.
Spectrum Control Optimization can help determine the best place to move the volumes based on the real work
load
12IBM Systems Technical Events | ibm.com/training/events
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be reproduced in whole or in part without the prior written permission of IBM.
When will you need more storage?
� Go to:Groups � Tiers
� Look for dates in
“Zero Capacity”
Note: you can sort
on this column
– <Date> when no free
space is left
– None – no or
negative growth
– Depleted – no space
left in tier
� The “Growth”
columns provide
a trend
13IBM Systems Technical Events | ibm.com/training/events
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Tier Capacity Charts
� Tab Capacity shows how the Tiercapacity changed over time
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Hot Data
� Once a hot (very active) volume is found, how is
a more appropriate location (tier) found for that
volume?
� Moving the volume to a higher tier of storage with capacity may cause other problems:
� The target pool could be pushed past acceptable response based on the added load
� Volumes that were performing well in the target may degrade due to contention
Cold Data
� The same situation occurs for cool
volumes, how is a more
appropriate location (tier) found for
that volume?
� Blindly moving a volume to another
storage pool without any metrics is
just a guess … there is a better
way
Storage Optimization: Tiering at the volume level
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Volume Optimization: Analyze Tiering
� Identify the volume(s) to be analyzed
� Take note of the current Tier
� Right click the volume(s) and select Analyze Tiering
16IBM Systems Technical Events | ibm.com/training/events
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Determining Optimized Placement
� Select the storage pools from a list.
� Another option would be to select the target location based on capacity pools.
17IBM Systems Technical Events | ibm.com/training/events
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Volume Optimization: Analyze Tiering
� Select the storage destination pools from a list.
� Targets can include one or more storage pools spanning multiple tiers of storage.
18IBM Systems Technical Events | ibm.com/training/events
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Here is one way to get the limits
Tier 1: 552 x 1.0 ≈ 550
Tier 2: 557 x 0.5 ≈ 280
Tier IO/GiB
Tier 1 0.5 � 1
Tier 2 0.1 - 0.5
Tier 3 0.01 - 0.1
I/O Density rules of thumb
19IBM Systems Technical Events | ibm.com/training/events
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Volume Optimization: Analyze Tiering
� Define how many days worth of data to be analyzed.
� Select days to be included in the analysis
� Select times of the day to be included in the analysis
� Co-locate volumes
� Volume IO Rate / IO Density
� Maximum Pool I/O rate.
� Click “Analyze”
20IBM Systems Technical Events | ibm.com/training/events
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Volume Optimization: Analyze Tiering
Green Checkmark indicates analysis
successful
RecommendationsShow results of analysis
21IBM Systems Technical Events | ibm.com/training/events
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Execute Now or Schedule for Later
Schedule or Execute the recommendations.
Schedule for a later time, perhaps weekend
Execute recommendations now
22IBM Systems Technical Events | ibm.com/training/events
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Analyze All Volumes in a Storage Pool
� Process can apply to all volumes in a storage pool
Spectrum Control can help you balance your workload
across pools.
23IBM Systems Technical Events | ibm.com/training/events
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Pool Optimization: Analyze Tiering
� Define how many days worth of data to be analyzed.
� Define which days to be included in the analysis
� Define which times of the day to be included in the analysis
� Co-locate volumes assigned to the same server or hypervisor.
� Volume I/O Rate or Volume I/O Density
� Maximum pool I/O rate
24IBM Systems Technical Events | ibm.com/training/events
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Pool Optimization: Analyze Tiering
Identifies only the volumes that should be moved to different tier
25IBM Systems Technical Events | ibm.com/training/events
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be reproduced in whole or in part without the prior written permission of IBM.
1. When you need more storage capacity, what type and tier does you workload actually need?
2. After new storage added, what's the best way to evenly redistribute the workload?
3. When it's time to retire an aging storage device, where should you move the volume to?
Use Cases
26IBM Systems Technical Events | ibm.com/training/events
© Copyright IBM Corporation 2017. Technical University/Symposia materials may not
be reproduced in whole or in part without the prior written permission of IBM.
Storage Optimization: Balancing workload across the same tier
Even with one tier of storage, there can be hot
spots where the workload is not balanced
across the pools.
“I only have one tier of storage, so I cannot have
a hot spot“
Spectrum Control can help balance the work
load across pools!
27IBM Systems Technical Events | ibm.com/training/events
© Copyright IBM Corporation 2017. Technical University/Symposia materials may not
be reproduced in whole or in part without the prior written permission of IBM.
Pool Optimization: Balance Pools
� Identify the pool(s) you want to balance
� Right click the pool(s) and select Balance Pools
Spectrum Control can help you balance your work load across pools within a tier.
28IBM Systems Technical Events | ibm.com/training/events
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be reproduced in whole or in part without the prior written permission of IBM.
Pool Optimization: Balance Pools
� Define how many days worth of data to be analyzed.
� Define days of the week to be included in the analysis
� Define times of the day to be included in the analysis
� Co-locate volumes assigned to the same server or hypervisor
29IBM Systems Technical Events | ibm.com/training/events
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be reproduced in whole or in part without the prior written permission of IBM.
Pool Optimization: Balance Pools
The analysis shows a number of volumes that can be migrated across different pools of the same tier to balance the workload.
30IBM Systems Technical Events | ibm.com/training/events
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be reproduced in whole or in part without the prior written permission of IBM.
1. When you need more storage capacity, what type and tier does you workload actually need?
2. After new storage added, what's the best way to evenly redistribute the workload?
3. When it's time to retire an aging storage device, where should you move the volume to?
Use Cases
31IBM Systems Technical Events | ibm.com/training/events
© Copyright IBM Corporation 2017. Technical University/Symposia materials may not
be reproduced in whole or in part without the prior written permission of IBM.
Transform Storage: Host Level Migration
Spectrum Control can help transform volumes of Storage behind IBM Virtualized disks
32IBM Systems Technical Events | ibm.com/training/events
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be reproduced in whole or in part without the prior written permission of IBM.
Transform Storage: Host Level Migration
Select the target pools for migration
33IBM Systems Technical Events | ibm.com/training/events
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be reproduced in whole or in part without the prior written permission of IBM.
Transform Storage: Volumes Within A Pool
Transform storage can also be used to all volumes in a storage pool
34IBM Systems Technical Events | ibm.com/training/events
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Transform Storage: Volumes Within A Pool
Using the volumes tab under the pool select the target volume(s)
� Recommendations can be scheduled
� Can be used when migrating data to a new hardware platform
35IBM Systems Technical Events | ibm.com/training/events
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Summary
Optimization and Transformation available in Virtual Storage Center and Spectrum Control Advanced Edition
Analytics determines which volumes to be moved and where to move them
Spectrum Virtualize used to move data from one storage system, pool or tier to another
– SAN Volume Controller
– FlashSystem V9000
– Storwize V7000 and V5030
36IBM Systems Technical Events | ibm.com/training/events
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Your feedback about this session is very important to us.
Submit a survey at:
ibmtechu.com
37IBM Systems Technical Events | ibm.com/training/events
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38IBM Systems Technical Events | ibm.com/training/events
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be reproduced in whole or in part without the prior written permission of IBM.
–Spectrum Control Knowledge Center
• https://www.ibm.com/support/knowledgecenter/SS5R93
–Spectrum Control Support Matrix
• http://www-01.ibm.com/support/docview.wss?uid=swg21386446
–Latest downloads for Spectrum Control
• http://www-01.ibm.com/support/docview.wss?uid=swg21320822
Spectrum Control support links
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� http://www.ibm.com/training/events
� shape the future of storage management– Learn what’s on the horizon and provide feedback that reflects your needs
– Watch designs progress from wireframes to implementation
– Sign up here:https://www-304.ibm.com/software/support/trial/cst/forms/nomination.wss?id=5306
� refining functions and provide more diverse test situations– Get access to beta code and provide feedback on new functionality
– Lab advocates will help you understand and work with new functions
– Collaborate with experts and other customers
– Sign up here: https://www-304.ibm.com/software/support/trial/cst/forms/nomination.wss?id=5336
� check your enhancement ideas with other users– Use Request for Enhancements (RFE) on DeveloperWorks
– No enrolment required: https://www.ibm.com/developerworks/rfe/
Session reference links
40IBM Systems Technical Events | ibm.com/training/events
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SVC Easy Tier versus VSC Tiering Analysis
SVC Easy Tier VSC Tiering Analysis
Purpose Find and optimize hottest extents Move workloads between pools
Optimization strategy
Avoids creation of hot spots on mdisks, based on “knowledge” of micro tiersDoes only act if there is a large variation of the response times (skew)
Multiple Strategies:• Standard: move volumes out of tier/pool if
activity limit is exceeded. • Advanced: depending on policy settings
(IO rate or IO density and/or age)
Analysis • Monitors cumulative response time per MDisk (in the same pool).
• Runs continiously
• Monitors activity score per pool (in the same tier) over multiple days
• On-demand or scheduled
Granularity Extent Volume, but analysis can be initiated for storage system, pools, volumes, servers or hypervisors
Boundary/type of pool
Hybrid pools (tiering within pools also called micro tiering) � can potentially reduceavailability
One or more Tiers (each tier can be multiple pools)
Analysis timeframe Cannot be adjusted Can be adjusted
Automation/Control
• Completely automatic • semi-automated tool for lifecyclemanagement
• Range of tiers determined by service class
Initial tier placement
Depends on available capacity and cannot be controlled� Tiering?
Tier determined by service class settings and current workload
Move/swap One tier at a time Volume can “jump” across multiple tiers
Life Cycle Mgmt No yes
Also included Balancing of mdisks within pool Balancing workload across multiple pools of the same tier level
41IBM Systems Technical Events | ibm.com/training/events
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IBM Tucson Executive Briefing Center
� Tucson, Arizona is home for
storage hardware and software
design and development
� IBM Tucson Executive
Briefing Center offers:
–Technology briefings
–Product demonstrations
–Solution workshops
� Take a video tour!
– http://youtu.be/CXrpoCZAazg
42IBM Systems Technical Events | ibm.com/training/events
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About the Speaker
Tony Pearson is a Master Inventor and Senior IT Architect for the IBM Storage product line. Tony joined IBM Corporation in
1986 in Tucson, Arizona, USA, and has lived there ever since. In his current role, Tony presents briefings on storage topics
covering the entire IBM Storage product line, IBM Spectrum Storage software products, and topics related to Cloud Computing,
Analytics and Cognitive Solutions. He interacts with clients, speaks at conferences and events, and leads client workshops to
help clients with strategic planning for IBM’s integrated set of storage management software, hardware, and virtualization
solutions.
Tony writes the “Inside System Storage” blog, which is read by thousands of clients, IBM sales reps and IBM Business Partners
every week. This blog was rated one of the top 10 blogs for the IT storage industry by “Networking World” magazine, and #1
most read IBM blog on IBM’s developerWorks. The blog has been published in series of books, Inside System Storage: Volume
I through V.
Over the past years, Tony has worked in development, marketing and consulting for various storage hardware and software
products. Tony has a Bachelor of Science degree in Software Engineering, and a Master of Science degree in Electrical
Engineering, both from the University of Arizona. . Tony is an inventor or co-inventor of 19 patents in the field of electronic data
storage.
9000 S. Rita Road
Bldg 9032 Floor 1
Tucson, AZ 85744
+1 520-799-4309 (Office)
tpearson@us.ibm.com
Tony Pearson
Master Inventor
Senior IT Architect
IBM Storage
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Email:tpearson@us.ibm.com
Twitter:twitter.com/az990tony
Blog: ibm.co/Pearson
Books:www.lulu.com/spotlight/990_tony
IBM Expert Network on Slideshare:www.slideshare.net/az990tony
Facebook:www.facebook.com/tony.pearson.16121
Linkedin:https://www.linkedin.com/in/az990tony
Additional Resources from Tony Pearson
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