Posted on 2011-02-24
In a nushell - SAN storage to which VMware ESXi 4.1 VM is connected is having issues. SAN vendor has sent in a replacement unit. I need to shift the datastore AND the virtual disks on the 1st SAN to the 2nd SAN. The virtual disks are connected to the VM via VMWare RDM.
What would be the most efficient way to transfer both the Datastore and the data in the virtual disks attached to VM to the new SAN device?
So far...I have created virtual disks on the new SAN device to match the old SAN, My VM host sees all the virtual disks on both SAN's. I have created the new datastore on the new SAN and I can point to the new datastore in the cloning process.
The Problem - I am failing to see if there is an option to point the virtual data disks (connected via RDM) to the virtual disks on the new virtual disks on the new SAN.
During the cloning process when I select the datastore is obviously give the warning "Insufficient disk space on datastore" since in the advance tab it is considering the total of the datastore and the data on the attached RDM virtual data disks.
My SAN vendor tech support tells me that this is possible with VMware cloning process, but I am failing to make it happen in my test environment.
If this is indeed possible, I am sure one of the VMware guru here would know. I am presently scratching my head .....
Any help would be greatly appreciated!