Exploiting Tier 0 and Virtualization to Maximize Storage Performance

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Presented by Tim Conley (ATS Group)

Exploiting Tier 0 and Virtualization to Maximize

Storage Performance

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Compliments from Galileo Performance Explorer™

Storage Session

Lecture Presentation Session Title:

Exploiting Tier 0 and Storage Virtualization to Maximize Storage Performance

Abstract:

Tier 0 is a level of storage that’s faster—though perhaps more expensive—than any other level in the storage hierarchy. But how do you justify its costs? By combining technologies such as Flash (TMS) and solid-state drives (SSD) with Storage Virtualization (SVC and V7000), and then applying

application awareness or smarter data placement, companies can realize significant cost-saving benefits. This presentation will illustrate how using these performance accelerators with Storage Virtualization can eliminate the current Disk I/O choke points in your servers or applications.

What Attendees Will Learn:

Attendees will see how applications such as VDI, highly transactional databases and Private and Public Storage clouds can leverage these high-level technologies to increase performance,

productivity, and ROI. Live examples and supporting charts will quantify the critical need to exploit these storage technologies.

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What is TIER 0

Tier 0 is a level of storage that’s faster, and perhaps more expensive, than any other level in the storage hierarchy.

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Flash vs SSD

• Flash is hardware based arrays providing maximum performance and lowest latency with optimized Field-programmable gate array (FPGA) hardware only data path

• SSD is composed of flash that is put inside a carrier and inserted into an array like a hard disk drive, there is added latency caused by controllers, software layers, and shared data paths.

What Should I use?

• Use SSDs to optimize performance when there are less than 6 SSDs. When there are more than 5 SSDs, Flash System is a more cost and performance effective choice.

• Do your own Pricing Exercise

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Benefits of TIER 0 with Storage Virtualization

Applications see time waiting, not

IOPS

I/O Time Network

Time CPU Time

I/O Time Network Time CPU Time

I/O Time Network Time

CPU Time All client requests take time

Newer CPUs help

Newer CPUs + RamSan or SSD magnify the gains

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Benefits of TIER 0 with Storage Virtualization

• Dramatically boosting the performance for workloads that really need it.

• Significantly improving response time for better and timely decision making

• Add Business value by reducing overall processing time

• Easy to move around expensive assets (SSD-Flash) to maximize customers assets and provide a better ROI. **HUGE**

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Storage Cloud - Purpose

Thin Provisioning Near Line Disk Right Sizing Compression (RTC)

Storage Cloud

Storage Efficiencies

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Storage Cloud – Example #1

Collection Tier (1PB - SATA)

Mid-Tier (2PB - SATA) Analysis-Tier (2PB - SAS)

HPC Storage

Commodity Tier (700GB - SATA)

Performance Tier (300TB - SAS)

Commodity Storage

Note:

• SSD’s added to Each V7k

• V7k needed for Tier 0 data movement • Customer unsure of workload demands

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Storage Cloud – Example #2

SVC1 RamSan Tier 0 Multi-Vendor Storage 1.5PB FC Drives TIER 1+2 SVC2 Multi-Vendor Storage 1.5PB FC Drives TIER 1+2 RamSan Tier 0 8PB Government Private Storage Cloud

Note:

Customer using Flash System for dedicated “Platinum” storage and EazyTier acceleration for Tier 1+2 Storage

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Storage Cloud – Example #3

SVC3 V7000 Tier 0 Existing DS8x000s 1.6PB FC TIER 1 Drives SVC4 Existing DS8x000s 1.6PB FC TIER 1 Drives V7000 Tier 0 DS88000 320 TB

Nearline Tier 2 Drives 3.5PB Government Private Storage Cloud

Note:

• Customer saved $1.2M in first deployment of Nearline disk.

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Notes:

• A Single V7000 will be able to Drive 18 200GB SSD drives to 120K IOPs

• 120K IOPs is a LARGE workload

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Notes:

• Customer #3 generates a total of 45K IOPs on SVC3

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Notes:

• Customer #3 generates a total of 55K IOPs on SVC4

• Total 3.5PB generates 100K IOPs

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V7000 internal Drives

• 900GB SAS drives, showing 6-10ms read service times

• 400GB SSD drives, showing .25-.35ms read service times

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Database volume read acceleration in Tier0

V7000 Database Vdisks

• Using EazyTier and SSD, able to accelerate database volumes to .3 - .6ms read service times

• Supply just enough SSD into Storage pool to increase Database volumes performance for a critical application demand

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VDI volume read acceleration in Tier0

SVC VDI Vdisks

• Using EazyTier and SSD, able to accelerate VDI Storage Pool from 4.2ms to 1.2ms read service times. Storage Pool contains SAS 10K drives (Red/Yellow Lines)

• Using EazyTier and SSD, able to accelerate VDI Storage Pool from 10-12ms to 4-6ms read service times. Storage Pool contains SAS 3TB drives (Green Lines)

• Supply just enough SSD into Storage pool to increase VDI volumes performance for a critical application demand

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VDI volume read acceleration in Tier0

SVC VDI Vdisks

• Using Performance management tools, such as Galileo, we are able to view the

hottest IOP vdisks and corresponding service times to measure the benefits of TIER 0

• These tools allow us to properly identify the best candidates for movement to TIER 0, and allow us to identify the best placement of TIER 0 assets and movement between SVC Storage Pools for maximum benefit

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Here are the initial results of our TMS vs. Violin test. We ran 5 servers split 2 on the first ESX host and 3 on the second. The IOmeter settings are:

» 2 Workers Each w/ 100GB LUN

» 4k (60% Read) Workload 100% Random » 32k (40% Write) Workload 20% Random » 10 Outstanding I/O’s Per Worker

The test was first run with TMS volumes from SVC in Cache bypass mode. Then we migrated the volumes in real time over to the Violin. That explains the dip in performance during that time. After the migration completed things level back out. The graphs should explain it all, dramatic decrease in performance after the move to Violin.

Exploiting Tier 0 and Virtualization to Maximize Storage Performance

Presented by Tim Conley (ATS Group)