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VMFS VMWare UNMAP

coldfire3000
Occasional Collector

VMFS VMWare UNMAP

Hi,

I have read that UNMAP is supported in more recent versions of the LeftHand OS but when I try and do this it shows delete status unsuported against all of the LUNS across the P4500's and P4335's we have.

The article I am following is: http://blogs.vmware.com/vsphere/2012/04/vaai-thin-provisioning-block-reclaimunmap-in-action.html

The command I run to see this is: 'esxcli storage core  device vaai status get -d  <naa>'

The LUN's are all configured as thin provisioned on the SAN so this should be supported as far as VMware goes. I am wondering if there is something I need to do in the CSM or if the LeftHand OS just does not support UNMAP?

Thanks

Chris

1 REPLY
Thomas_SG
Advisor

Re: VMFS VMWare UNMAP

Hi Chris

Believe you have to use the following command

esxcli storage vmfs unmap -l <volume_name>

You have to run v12.0 or newer for this to work.

You also have to enable the feature somewhere in StoreVirtual CMC, but I cannot seem to find exactly where right now.