VM disk consolidation failures

I had two cases where VM disk consolidation failed.

First case

Error message: An error occurred while consolidating disks: Could not open/create change tracking file.

Solution:

  1. Shutdown VM
  2. Edit VM configuration parameters and delete all lines that enable CBT (change block tracking). This might be not necessary, but I did it.
  3. Move all *ctk* files away from VM folder
  4. Consolidate the disks

I got help from: https://paulgrevink.wordpress.com/2013/12/02/vm-disk-consolidation-fails/

Second case

Error message: Unable to access the file since it is locked. An error occurred while consolidating disks: msg.fileio.lock

Solution: Reboot all hosts in cluster one by one and try to consolidate the VM disks again.

I hope this will help anyone who has same issues with consolidating VM disks.

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