Cisco UCS server local disks - Do not support UNMAP

[edwinlcf]

I tried the reclaimed function on Cisco UCS server local disk, but it was fail ... Any idea? Not support on Cisco UCS server?

~ # esxcli storage vmfs extent list

Volume Name       VMFS UUID                            Extent Number  Device Name                           Partition

----------------  -----------------------------------  -------------  ------------------------------------  ---------

ABCESXi03_local  54f6cxxxxxxxxxx7144xxxxxxxxxxb501109f              0  naa.600508e00000000020xxxxxxxxx         3

~ # esxcli storage vmfs unmap -l ABCESXi03_local 

Devices backing volume 54f6cxxxxxxxxxx7144xxxxxxxxxxb501109f do not support UNMAP

~ # esxcli storage vmfs unmap -u 54f6cxxxxxxxxxx7144xxxxxxxxxxb501109f

Devices backing volume 54f6cxxxxxxxxxx7144xxxxxxxxxxb501109f do not support UNMAP

~ #

[sjesse]

I'm not sure, but I don't think the VAAI commandos work with local disks, but I don't think you need them. I think when you delete something on a local datastore its really deleted, and doesn't require an unmap command

[edwinlcf]

Reclaim thin-provisioned VMs on deleted space, that cannot support on local hard disk???

As local disk, that would release the space on thin-provisioned VM on deleted data???

[SureshKumarMuth]

Reclaiming can be done only on supported devices. There are some work around to do if you have windows machine , worth to try

How to free up VMware ESXi local drive VMFS datastore space after deleting data in a thin provisione...

[edwinlcf]

Thanks for your help~ Sureshkumar M,

Actually, I have a Windows 7 VM, which is the thin-provisioned VM and the used space is 75.6GB.

Current VM spaces (Used 75.6GB):

Current datastore used space on the VM (Have the Virtual Disk of the VM used 85,829,632.00 KB  ~around 85 GB):

Can reclaim the space of 10 GB back???... Now, I deleted more 5GB. When can it reclaim back? Local Disk cannot reclaim??