NickPOW1
2 Iron

Re: VAAI Support for NFS: How?

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Adding a section from the VMware KB artice for future use.

vStorage APIs for Array Integration FAQ

Are there any caveats that I should be aware of in ESX/ESXi 4.x? 

There are a few reasons why a hardware-accelerated operation may fail.

For any primitive that the array does not implement, the array returns an error, which triggers the ESX data mover to attempt the operation using software data movement. In the case of ATS, it reverts to using SCSI Reservations.

VAAI hardware offload cannot be used when:

  • The source and destination VMFS volumes have different block sizes 
  • The source file type is RDM and the destination file type is non-RDM (regular file)  
  • The source VMDK type is eagerzeroedthick and the destination VMDK type is thin
  • The source or destination VMDK is any sort of sparse or hosted format 
  • Cloning a Virtual Machine that has snapshots, since this process involves consolidating the snapshots into the virtual disks of the target Virtual Machine.  
  • The logical address and/or transfer length in the requested operation are not aligned to the minimum alignment required by the storage device (all datastores created with the vSphere Client are aligned automatically) 
  • The VMFS datastore has multiple LUNs/extents spread across different arrays
  • Hardware cloning between arrays (even if within the same VMFS datastore) does not work.

Read the full KB Article:

http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=102197...

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Xanlith1
1 Copper

Re: VAAI Support for NFS: How?

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So it looks like Ken is right, the plugin is still in "beta" according to my account vSpecialist with no ETA on release. I probably wouldnt have put all the stuff in the FLARE/DART code release fanfare about NFS VAAI if the entire system isnt ready to go.

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kendcollins
2 Bronze

Re: VAAI Support for NFS: How?

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Recent update: several issues have been resolved and eLabs is working on completing the round of certificaiton tests. Then the results will be submitted to VMware for their blessings.

I would say this should happen very soon, but we are now on the threshold of the holidays.....

More info as it becomes available.....

Ken

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kendcollins
2 Bronze

Re: VAAI Support for NFS: How?

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All,

Latest word is that the vStorage plug-in for "VAAI for NFS" has passed EMC/eLabs testing and has now been submitted to VMware for verification of test results and final certification action.

Ken

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cguadall
1 Copper

Re: VAAI Support for NFS: How?

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vSphere 5 VAAI NFS plugin for VNX available now.

http://virtualgeek.typepad.com/virtual_geek/2011/12/vsphere-5-vaai-nfs-plugin-for-vnx-available-now....

Home > Support > Software Downloads and Licensing > Downloads A-B > Adapters for Third-Party Applications

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mattcowger1
2 Iron

Re: VAAI Support for NFS: How?

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We can't do this in FLARE/DART because it needs changes on VMware's end as well.

The enabler is now posted and available.

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cgermain
1 Copper

Re: VAAI Support for NFS: How?

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Hello,

I will be out of the office from Wednesday December 28, 2011 and Thursday December 29, 2011.

Should you need immediate assistance please contact the help desk at 1-877-362-4832

Thank You

Chris Germain

Delaware North Companies Inc.

Sr. Systems Engineer

Infrastructure Services

716-858-5391

cgermain@dncinc.com

>>> mattcowger <emc-community-network@emc.com> 12/27/11 22:56 >>>

mattcowger created the discussion

"Re: VAAI Support for NFS: How?"

To view the discussion, visit: https://community.emc.com/message/583230#583230

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