Corrupted hyperbackup backup

[ludwig973]

HI,
one of my clients suffered damage to their NAS. From a ds916+ I managed to recover the btrfs and found the hyperbackup target folder. Hyperbackup does not hang it up, however the sqlite files are readable and the binary contents of the pool appear intact. How could it be possible to reread it? Is there any tool or documentation that allows you to recover the content, perhaps even if it is not perfectly coherent or intact? Is there documentation on how hyperbackup writes its binaries?

 

[reindu]

My NAS was ransomed and the connected usb backup was formatted. But with a recovery program I got back a complete directory (1.5 Gb). But the Hyper Backup doesn't read it. It stops in the beginning. So there must be a pointer there. Hyper backup doesn't compress much, so it must be possible to read the files, I think.