Repair Vmfs Metadata High Quality -

esxcli storage filesystem rescan esxcli storage vmfs snapshot resignature -l DATASTORE_NAME Then attempt mount:

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

vim-cmd hostsvc/storage/filesystem_volume_info | grep -A5 -B5 "error" Or use the classic: repair vmfs metadata