Snapshot before VM hardware upgrade?

Hello people,

I read a lot of conflicting information around it, so thought I would ask here.

We are going to be upgrade to vSphere 4.0 soon and of course will focus on the hardware upgrade of the virtual computer to version 7.

Now, if I take a snapshot before you do the upgrade of HW and it goes pearshaped can I go back to the snapshot and the server will work?

Or is it a one-way change, even with a snapshot in place?

Same Xtravirt, which are usually about money, seems a bit confusing:

()http://xtravirt.com/do-i-upgrade-vmware-virtual-hardware-version-7( )

They say:

"When you upgrade virtual hardware version 3 to version 7, the upgrade is irreversible, even if you take a backup of virtual machine or a snapshot before you perform the upgrade.

Then later in the same article:

"using snapshots will give you the opportunity to come back if there is a problem."

Thanks in advance.

HW version 3 refers to the VM for instance ESX 2.x (see KB1003746 - versions of virtual machine hardware)

I never upgraded to this version, so I can't say whether this is true or not. However, it is possible to return to a HW version 4 improved virtual computer. VUM proposes explicitly to take a snapshot before upgrading hardware.

André

Tags: VMware

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