Looking to build a small form-factor system that can be used as a nightly off-site back of my main TrueNAS server.
Main server is 6x16 TB in RAID-Z2 for 64 TB usable.
Backup needs no redundancy and not necessarily all of the data, but something like 3 x 24 TB would work.
I had an idea that I would get some SoC miniITX board in a tiny case with 3 drives, install TrueNAS and just do a replication but am open to ideas.
If something non-ZFS makes sense in this scenario I would be open to suggestions there too.
If you don’t use Raid-Z(1,2,3), you won’t have the benefit of parity on the backup. Lose too many drives, lose the backup pool. You have to decide on your risk options. If you need to recover from Backup, you need it reliable.
Hardware is the usual advice to stick to server grade, reliable NIC is important for off site. IPMI for out of band and remote admin can be helpful
Resources List including Detailed Hardware and System Build Notes (plus new user advice / help)
I understand the risks. I could convince myself to put in a fourth disk for RAID-Z1, but this is really a catastrophe recovery system. I have my local, and everything valuable on cloud, this is for the non-valuable to sit in a basement and hopefully never be heard from again.
I have been conditioned for 10+ years that ZFS requires ECC or this would be a simple task.
I previously had a SuperMicro A1SAM-2550F which served its purpose for many years, sort of looking for a 2025 equivalent I suppose?
I have easy access to small SSDs, ECC DDR3/4/5, and some other minor parts.
MiniX+ would be way more than I need, MiniX would maybe be more in-line with what I need but it seems like they do not sell them anymore.
Essentially a DIY miniX is exactly it though.
Just checking. The current plan is three, 24TB drives stripped in a VDEV or is it a VDEV and pool per drive? Pool per drive failure is only 24TB raw data loss. Other way is 72TB raw if a drive fails
