Using an open NAS bay as removable backup rotation

[Joss]

Oh damn, good info. I wanted to do the same as @Rickperry … so I’ve opened a new thread extending this question to TrueNAS Scale and unRAID.

Possible to use open NAS bay with standalone unassigned HDD (ext4) for backup rotation? (TrueNAS/unRAID)

@Paul wrote in this thread that in DSM you can’t use a standalone HDD in one of the NAS bays for server backup and rotation, i.e. hotswap & exchange two drives, and always have one offsite. The only way is to use USB DAS. This is a bummer, because I wanted to do the same, so the chances of me buying a Synology have dwindled further. My plan is to use one SATA lane for a hotswap 3.5" HDD, and run nightly backups from the main storage pool (ZFS) to the HDD (simple clone, not incremental). The bac…