vFlash - vBrownBag

vSphere 5.5 Series vFlash Read Cache Nick Marshall - @NickMarshall9
Sr. Consultant, VCAP, VMware PSO

Session Outline – vFlash §  Intro §  Architecture §  Management
§  Demo §  Q & A

vFlash - Introduction §  Local Storage §  Integrated with ESXi
§  Read Cache only §  Per VMDK §  Works with all the good stu (HA / DRS)

vFlash - Prerequisites §  Local disks only §  Standard SSD
or PCI-e works §  vCenter (needs the Web Client*) §  Enterprise+ License

vFlash - Use Cases §  Collaboration Apps §  Middleware Apps
§  Databases §  Any read intensive workload!

§  Demo §  Q & A

vFlash - Architecture

vFlash - Architecture §  Max 8 SSDs / VFFS § 
Max 4TB drive §  Max 400GB / VMDK §  SSD capacity can be used for SSD Swap

vFlash - Architecture §  VFFS – a derivative of VMFS
–  optimized for ﬂash devices §  VFFS Not accessible in the UI §  VFFS is a resource, not a datastore

vFlash - Management §  New Performance Counters –  vFlashCacheIOPs – 
vFlashCacheLatency –  vFlashCacheThroughput Important!

vFlash - Management Command Op*ons Descrip*on esxcli
storage vflash cache vFRC management device Virtual flash SSD device management module Virtual flash module opera;ons esxcli storage vflash cache get Get individual vFRC info list List individual vFRCs esxcli storage vflash cache stats get Get vFRC sta;s;cs reset Reset vFRC sta;s;cs esxcli storage vflash device list List all SSD devices for virtual flash list -‐e List all eligible devices for virtual flash list -‐u List all unused (or unused) devices for virtual flash esxcli storage vflash module get Get virtual flash module info list List virtual flash module info

vFlash - Management ~ # esxcli storage vﬂash device list
Name Size Is Local Is Used in vFlash Eligibility -‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐ -‐-‐-‐-‐-‐-‐ -‐-‐-‐-‐-‐-‐-‐-‐ -‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐ -‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐ naa.5001e82002600000 190782 true true N/A naa.5001e82002611111 190782 false false Detected as a remote SAS SSD naa.5001e82002622222 190782 false false Detected as a remote SAS SSD naa.5001e82002633333 190782 true false Yes, this is a blank disk.

§  Demo §  Q & A

References •  Yellow-Bricks: Intro to vFlash •  http://www.yellow-bricks.com/2013/08/26/ introduction-to-vsphere-flash-read-cache-aka- vflash/
•  Various VMware Blogs •  http://blogs.vmware.com/vsphere/tag/vflash •  Mastering VMware vSphere 5.5 •  http://tinyurl.com/masteringvsphere

Thank you Nick Marshall - @NickMarshall9 Sr. Consultant, VCAP, VMware
PSO

vFlash - vBrownBag

vFlash - vBrownBag

Nick Marshall

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vSphere 5.5 Series vFlash Read Cache Nick Marshall - @NickMarshall9

Session Outline – vFlash §  Intro §  Architecture §  Management

vFlash - Introduction §  Local Storage §  Integrated with ESXi

vFlash - Prerequisites §  Local disks only §  Standard SSD

vFlash - Use Cases §  Collaboration Apps §  Middleware Apps

Session Outline – vFlash §  Intro §  Architecture §  Management

vFlash - Architecture

vFlash - Architecture §  Max 8 SSDs / VFFS §

vFlash - Architecture §  VFFS – a derivative of VMFS

vFlash - Management §  New Performance Counters –  vFlashCacheIOPs –

vFlash - Management Command Opons Descripon esxcli

vFlash - Management ~ # esxcli storage vﬂash device list

Session Outline – vFlash §  Intro §  Architecture §  Management

Session Outline – vFlash §  Intro §  Architecture §  Management

References •  Yellow-Bricks: Intro to vFlash •  http://www.yellow-bricks.com/2013/08/26/ introduction-to-vsphere-ﬂash-read-cache-aka- vﬂash/

Thank you Nick Marshall - @NickMarshall9 Sr. Consultant, VCAP, VMware