Esxi Recover Vmfs Partition Table

If you know the original partition layout (from another identical disk or logs):

If the partition table is lost, do not create a new datastore on the LUN. Creating a new VMFS file system will overwrite the file system headers, making true recovery impossible. esxi recover vmfs partition table

A common cause of partition loss is expanding a LUN on the SAN side but failing to expand it correctly in ESXi. If the partition table was corrupted during a vmkfstools --growfs operation, the vmfsfstools -R command is often capable of restoring the original boundary, though you may need to re-attempt the expansion after recovery. If you know the original partition layout (from

Improper recovery actions can transform a repairable partition table error into a permanent data deletion disaster. Observe these rules strictly: esxi recover vmfs partition table