If you have the FD for a flat VMDK ( -flat.vmdk ), you can extract its data blocks sequentially using the FB table.
If a VMFS volume is detected as "snapshot" or duplicate, ESXi may refuse to mount it to prevent data corruption. Re-signaturing involves assigning a new UUID (Universally Unique Identifier) and label to the volume. vmfs recovery
fd = read_fd(fd_number) for each block_pointer in fd.fbt: dd if=vmfs_disk.dd of=recovered_flat.vmdk \ bs=<vmfs_block_size> skip=<block_pointer> count=1 seek=<output_offset> If you have the FD for a flat VMDK ( -flat