Vmkfstools -d - Work

The utility is intelligent: it clones the source disk to a new format, preserving the original until the operation completes. This makes -d safe but demands free space equal to the source disk's (not used space) on the destination datastore.

Some storage arrays or backup applications require a specific format. Moving from a legacy SAN that supports only thick disks to vSAN, which prefers eagerzeroedthick, becomes seamless with a simple conversion. vmkfstools -d

In virtualized environments, storage I/O performance and efficient space utilization are often competing priorities. The method by which a virtual disk file ( .vmdk ) is allocated on the physical storage fabric dictates the virtual machine's performance characteristics during write operations and the overall density achievable on the datastore. The utility is intelligent: it clones the source

: The output reveals the MAC address of the ESXi host currently holding the lock. This is essential when a VM is "stuck" in a powered-on state or if a backup job failed to release its lock. Moving from a legacy SAN that supports only