VMware KB1011170 – Checking Zero vs EagerZero Disk Status
VMware has released a KB with a handy vmfstools command to check your VM’s disk status. If the VMFS output shows a “Z” it is Zerothick with blocks that have not been written to yet.
Read the article here.
This allows you to check the disk status for options such as Fault Tolerance or Microsoft Cluster Services. [...]
