geekon with ron #5: storage deep dive with special guest

Post on 24-May-2015

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In this GeekOn with Ron session, Ron Oglesby invites Ed Lee of Tintri to go deep on storage including discussions on IOPS, rotating disk, SSD, RAID, hybrid arrays, and more.

TRANSCRIPT

GeekOn Discussion:Understanding Storage

and VDIRon Oglesby @ronoglesby #GeekOn

Copyright © 2010 Unidesk Corporation. All Rights Reserved. www.unidesk.com

Special Guest for this GeekOn!Ed Lee, Lead Architect at TintriMost recently, Ed was Principal Systems Architect at

Data Domain, and a key contributor to the first and subsequent releases of Data Domain’s file system. He was responsible for innovations like the BOOST deduplication protocol and replication. Prior to Data Domain, Ed was at Zambeel and Compaq Systems Research Center. He has a Ph.D. from UC Berkeley in Computer Science, where he was an original member of the Berkeley RAID team.

AgendaWhy storage became so important to VDICommon desktop disk use characteristics/abilities IO and throughput performance on various types of

storageHow RAID configurations impact performanceHybrid Arrays

Copyright © 2010 Unidesk Corporation. All Rights Reserved. www.unidesk.com

From Project Virtual Reality Check Phase III:

Typical Desktop Profile (workload)

Copyright © 2010 Unidesk Corporation. All Rights Reserved. www.unidesk.com

Start w/ a Typical Desktop Profile (Logon)From Project Virtual Reality Check Phase III:

Copyright © 2010 Unidesk Corporation. All Rights Reserved. www.unidesk.com

Now we need understand disk capabilities

Rotating disk 7.2k, 10K, 15kThe basics of SSD

SLC, eMLC, MLC, TLC, etcVery High IOPsEnduranceExpensive per GB

Copyright © 2010 Unidesk Corporation. All Rights Reserved. www.unidesk.com

Why is storage so important to VDI?Examples: (Modify for login numbers)

Take those 5 ,10, 15 IOPs per desktops and multiply x 75 or 1000…..

75 Desktops on a single server? 1000 Desktops on a single array?

So if you require 750 (raw) IOPs on a server how many rotating disks required?

Reliability, Manageability and Scalability

Copyright © 2010 Unidesk Corporation. All Rights Reserved. www.unidesk.com

How do controllers and RAID impact IO

CacheRAID levelBlock sizeFilesystem

Log structured file system

Copyright © 2010 Unidesk Corporation. All Rights Reserved. www.unidesk.com

Hybrid Arrays

Basic explanation of the modelDisk based hybrid-arraysFlash based hybrid-arrays

Key questions to ask of any Hybrid vendor

Storage IO Example for 1,000 VMs

VMware View Planner Lab Results 1,000 VMs

4 Dell R720 ESXi hosts 2 x Intel Xeon E5-2690

(2.9Ghz)

256GB RAM

2 x 1 GbE Ethernet adapters

2 x 10 GbE Ethernet adapters

Tintri VMstore T540 2.4 TB raw MLC SSD

26 TB raw 5.4K SATA disks

Open Q&A

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