Help – Synology NAS went bad

Synology Nas went bad, drives are still good. How can I recover the data?

Tagged: NAS

NAS data recovery

All Replies

Viewing 2 replies - 1 through 2 (of 2 total)

deken

Participant

September 25, 2025 at 12:57 pm

Thanks for breaking that down, Jace. I’m in a similar situation with a Synology unit that went bad, and your steps make sense. I’ve got four drives in RAID5, so I’ll try pulling them and working with mdadm on a Linux box. Good call on cloning the drives first too — I wouldn’t have thought of that.

Between R-Studio and UFS Explorer, is there one that tends to handle Synology’s Btrfs volumes better? I’d like to avoid trial and error if possible.

Jace Elric

Participant

September 1, 2025 at 8:44 am

If your Synology NAS has failed but the drives are still good, the data can usually be recovered because it’s stored on the disks, not the NAS box itself. Take the drives out and label them in the order they were installed. For a single drive, connect it to a Linux machine and mount the data partition to copy the files. For multiple drives, Synology typically uses mdadm RAID with EXT4 or Btrfs, so you can connect them to a Linux PC, install mdadm, and scan to rebuild the array. If the RAID doesn’t assemble, NAS recovery tools like R-Studio, UFS Explorer, ReclaiMe, or Stellar Toolkit for Data Recovery
can help. Always clone the drives before working on them, and if a drive shows physical problems, stop and use a professional recovery service.

Viewing 2 replies - 1 through 2 (of 2 total)