Article number
000002941
Affected Versions
All
Source Hypervisor
All
Target Hypervisor
All

VPG in “Needs Configuration” due to protected volume being expanded beyond 2TB

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Root Cause

As ESXi 5.5.x and 6.0.x do not support hot disk expansion above 2TB. (Volume expansion of a powered on VM)
The VRA on the target site, which can only perform a hot-expansion, will not be able to expand the disk. Therefore, the protected and mirror volumes will not match in size. For more information on this VMware limitation, visit: https://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=2058287

Symptoms

After expanding a protected volume to more than 2TB, the VPG status will change to “Needs Configuration”

Solution

  1. Edit the affected VPG
  2. Take note of all the settings of the relevant VM and then remove it from the VPG (keeping recovery disks)
  3. Use the vmfstools command, as explained by the following VMware KB to expand the problematic disk to the exact same size as the protected volume: https://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=1002019
  4. Re-add the VM to the VPG and set all disks to be preseeded. The VPG will go into a delta sync.
If you are planning on expanding a disk above 2TB within the scope of the affected platforms please see: https://www.zerto.com/myzerto/knowledge-base/how-to-expand-a-protected-volume-to-beyond-2tb-prevent-vpg-from-needs-configuration/