Maya stared at the now-green dashboard. Somewhere in the datacenter, a disk blinked its steady heartbeat. She smiled. Another VMFS ghost story, beaten by knowing exactly where VMware hides its backup superblocks.
Success: Found backup VMFS6 superblock at 0x20000000 . recover vmfs datastore
Within 90 minutes, 34 of 37 VMs booted cleanly. Three had corrupted swap files—recreated them. The fraud detection system was back online at 4:15 AM, just before the London trading desk opened. Maya stared at the now-green dashboard
It was 2:00 AM on a Tuesday—the universal witching hour for IT disasters. Maya, a senior storage administrator, was jolted awake not by her pager, but by the eerie silence of her monitoring dashboard going dark. Then the texts came: “ESXi hosts lost connectivity to datastore ‘Prod-HighSpeed’.” Another VMFS ghost story, beaten by knowing exactly
The datastore reappeared in the vSphere Client. VMs showed as "unknown"—expected. She browsed the datastore: all VM folders, .vmdk , .vmx files intact.
Step 3: Deeper scan. She ran vmfs6-recover (part of vmfs-tools ). It parsed backup VMFS metadata—the first copy of the file system descriptor had been overwritten when the host re-scanned the "new" LUN, but VMware stores a second copy at offset 512 MB.