dcfldd if=/dev/sdX of=vmfs_disk.dd hash=sha256 hashlog=hash.txt bs=1M conv=noerror,sync # Or using ddrescue for failing drives ddrescue -f /dev/sdX vmfs_disk.dd vmfs_mapfile
VMFS maintains superblock copies at fixed offsets. Use a hex search for VMFS5 or VMFS6 : vmfs recovery
The most critical file is the .vmdk (Virtual Machine Disk), which acts as the "hard drive" for your virtual machines. dcfldd if=/dev/sdX of=vmfs_disk
When a VMFS volume fails, recovery generally falls into three categories: Native tools, command-line repairs, and third-party forensic recovery. vmfs recovery
sgrep -b 'VMFS5' vmfs_disk.dd
dd if=vmfs_disk.dd bs=512 | strings -n 8 | grep -E "FD.4,8VMFS"
Failed drives in a RAID array (e.g., RAID 5 or RAID 6) hosting the datastore.
