VMFS 5 keeps metadata in the first ~8-10 MB of the partition (heartbeat region, file descriptors, FBMs). If that’s overwritten – recovery becomes hard but not impossible.
If your hardware supports it, take a read-only snapshot of the current state of the LUN. Work only on the snapshot copy to protect the original data. 💻 Manual Recovery via ESXi Command Line
Administrators delete the wrong datastore during maintenance. vmfs 5 partition recovery
voma -m vmfs -f fix -d /vmfs/devices/disks/naa.600...
partedUtil get /vmfs/devices/disks/naa.600... or ls -l /vmfs/devices/disks/naa.600...:1 (if partition 1 still exists). VMFS 5 keeps metadata in the first ~8-10
Specifically reads the block sizes and structures unique to VMFS 5. Popular Professional Tools
ESXi provides built-in Command Line Interface (CLI) tools to diagnose and repair minor partition issues. Connect to your ESXi host using an SSH client. Step 1: Identify Missing LUNs Work only on the snapshot copy to protect the original data
: If the LUN ID changed, ESXi might mark it as a snapshot. Use the CLI command esxcli storage vmfs snapshot list to see if the volume is detected but not mounted.
To recover a lost VMFS 5 partition:
: Tools like Active@ Partition Recovery can scan the disk surface to detect and restore lost partition headers. 4. Dedicated VMFS Recovery Tools