Leo Chen, the senior virtualization architect, stared at the vCenter screen, his coffee cup freezing halfway to his lips. One second, the three-tier application for a national payment gateway was humming along. The next, the 12-terabyte datastore—the one holding the heart of their transactional database—had vanished. The VMs were gone. Not crashed. Gone. The storage array reported the LUN was there, but ESXi just saw a raw, screaming void where the VMFS file system used to be.
The VM booted. The Windows Server logo appeared. Then the SQL Server service started. The logs spooled. And finally, an application-level ping from the payment gateway came back: Response time: 12ms .
“Mark, stop crying and open a second SSH session. We’re going scavenger hunting.” recover vmfs file system
vmfs-recover -R -S 16384 /dev/disks/naa.6782a4b2c91d0001 --output /vmfs/volumes/scratch/new_descriptor.vmfs
He navigated to the first aid kit: /usr/lib/vmware/ . Leo Chen, the senior virtualization architect, stared at
Discovered file: "PROD-SQL-01/PROD-SQL-01.vmdk" (Size: 8.2TB). State: Incomplete. Discovered file: "PROD-SQL-01/PROD-SQL-01-flat.vmdk" (Size: 8.2TB). State: Intact.
The final command was the equivalent of a surgical transplant: The VMs were gone
“It’s finding the inodes,” Leo murmured, more to himself than Mark.