Run ls -l your-flat.vmdk . Note the byte size. Divide that number by 512 . That is your number of sectors. Example: A 10GB flat file is 10,737,418,240 bytes. 10,737,418,240 / 512 = 20,971,520 sectors .
If the descriptor exists but the flat file is “missing” because it was moved or renamed: recover vmdk flat file
Method 1: Recreating a Missing Descriptor File (Best for "File Not Found" Errors) Run ls -l your-flat
# Disk DescriptorFile version=1 CID=... ... ddb.adapterType = "lsilogic" (or "buslogic" or "pvscsi") 240 bytes. 10
If you have the -flat.vmdk but the VM won't start, the descriptor file is likely missing or corrupted.
RW 83886080 VMFS "VM_name-flat.vmdk"