How to remove extent device from storage

[hemanthk]

HI All,

I am new to VMware ESX server; i got a ESX server running with 136 GB physical hard disk. From my storage i assigned 50 GB has LUN 1 to this ESX server. I can see that 50GB on this ESX server.

What is did is i extended the 50 GB with the existing 136 GB, now i need to remove the 50 GB from physical storage.

Please find the attachment and help me out to remove 50 GB

Thanks in advance.

[NicholasFarmer]

Only migration path i've found is to create a new Lun with the total size you need and then move all of your VMs to it and delete the old Lun with extents.

If you have everything running on SAN storage, a storage Vmotion helps with downtime.

Also, depending on what your local disk configuation is, it may impact performance to have a VMFS extend across two different types of storage/disk/latency.

I have found that you must remove the storage from all VMs on the host, then remove it from the storage adapters, then you can remove it from the SAN. This process out of order will cause issues.