KB ID : 59
Products :
Published : Dec. 29, 2015
Created : Dec. 29, 2015
Last Modified : April 8, 2016

Cause

This is a known issue affecting incremental virtual machines backups, which rely on CBT running on ESXI 5.x hosts.

Solution

To resolve this issue on an affected virtual machine:

  • Shut down the virtual machine.
  • Remove any existing virtual machine snapshots.
  • Disable CBT for the virtual machine.
  • Remove or rename any files ending with the *-ctk.vmdk file extension in the virtual machine directory.
  • Enable CBT for the virtual machine again.
  • Power on the virtual machine.
  • Ensure that the virtual machine is not migrated using Storage vMotion or Storage DRS.

Refer the below VMware KB article to know more about it,

http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=2048201

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