Repair Vmfs Metadata -

esxcfg-volume -l If a datastore is listed as “not mounted” but the partition exists, metadata is a likely culprit.

When metadata gets corrupted, ESXi can’t navigate the filesystem — even though your VM data might still be perfectly intact. | Cause | Example | |-------|---------| | Sudden storage disconnection | Fibre Channel or iSCSI drop during heavy I/O | | Power loss to a SAN | Dirty shutdown without battery-backed cache | | Force-removing a LUN | Unmapping a datastore while VMs are running | | Buggy storage array firmware | Incorrect SCSI writes | | Manual block-level edits | Trying to use dd or recovery tools incorrectly | First, Is It Really Metadata Corruption? Run this check on the affected ESXi host (SSH): repair vmfs metadata

esxcli storage filesystem rescan esxcli storage vmfs snapshot resignature -l DATASTORE_NAME Then attempt mount: esxcfg-volume -l If a datastore is listed as

vim-cmd hostsvc/storage/filesystem_volume_info | grep -A5 -B5 "error" Or use the classic: Run this check on the affected ESXi host