When Changed Block Tracking (CBT) is enabled and ESXi hosts in the environment are running ESXi 5.1 or later, you experience these symptoms:
- When attempting a snapshot consolidation, virtual machines running on block storage power off.
- Virtual machines state that an error occurred during the quiesce process.
For more details and to address the issue, please follow the recommendations available under VMware KB 2144095:
According to the article above, for ESXi v.5.5 and 6.0, the issue is resolved in the patches below:
- ESXi 6.0, Patch Release ESXi600-201608001.
- ESXi 5.5, Patch Release ESXi550-201608001.