The list returned the device: naa.6782a4b2c91d0001 . Capacity: 12TB. Partition table: . His stomach dropped. A storage engineer on the call confirmed the SAN had lost a controller for 47 seconds during a firmware update. A cascading write error. The partition table, the file system’s map of the world, had been shredded.
Once the partition table is restored, rescan the storage adapter in ESXi. In many cases, the datastore will automount. recover vmfs file system
If the internal structures (Resource Manager or File Descriptors) are physically corrupted, command-line tools will fail. At this stage, you must use commercial software designed for VMFS. The list returned the device: naa
Identifying the cause of failure determines the correct recovery path. His stomach dropped
I hope you found this information interesting! Do you have any specific questions about VMFS recovery?