Changed block tracking cannot be enabled

[mmun]

I'm attempting to backup a windows 2003 std server sp2 w/ the latest vmware tools. It completes successfully, but i get a message that states "Enabling changed block tracking.....changed block tracking cannot be enabled: virtual hardware version 7 or later required." Why is this happening? Other similarly configured vms are being backed up successfully without this message. By the way, we're using vSphere.

[Gostev]

Sounds like this VM was created before you have upgraded to vSphere. You need to open VM's configuration settings using VMware Infrastructure Client, and upgrade VM's virtual hardware to version 7.

[Cliff.Hamilton]

We experience exactly the same problem as discribed by mmunn. We also found the answer discribed by Gostev, to update the vmware tools.
however this did not solve the issue, the problem persits. Is there another sollution to this mather?

[Gostev]

Cliff, what is the virtual hardware version on the VM in question? You can look it up in the VM's configuration settings using VMware Infrastructure Client.

[mmun]

I resolved it by shutting down the VM, right clicking on it, and choosing "upgrade virtual hardware."