I’m not very familiar with NAS storage. I bought a DH4300 Plus and bought 3 each 4TB HDD drives. I have about 1.5TB of data I work on. I’m a photographer and want to work on a drive while having it continually backed up to an adjacent drive so if the active drive fails I’m fully backed up. I also want to keep a full drive with all data stored remotely in my home safe for added redundancy. My questions are:
when setting up my “pool” do I designate all 3 drives or only 2?
can i physically pull one drive out each month and switch it out in the NAS so I always have a drive protected remotely while still having 2 drives in the NAS?
With three drives you should be able to do a RAID 5 configuration, although most people usually use four drives. Another option is RAID 1 plus a hot spare, but no data will be copied to the hot spare, it simply takes over in case of one of the other drives fail.
In RAID 1 you can technically do what you suggest, but I don’t think Ugreen has a good means of doing something like that, as the OS will complain that you’re in degraded mode. You can obviously test and see how it works, it’s not something I’ve ever played around with.
You’re most likely better off getting an external USB drive and back up the RAID 1 to that. You can use the Sync & Backup app to perform a backup to external USB devices.
Thanks TLS. I got a technical response from UGREEN.
They said keep HDD #1 & #2 in Raid 1 as a separate pool so I get redundancy.
Put HDD #3 in a separate pool and use that to do a backup so I can then remove it and store it remotely. That way I can reinsert HDD #3 periodically to backup any new data and remove and store again.
They also don’t recommend removing HDD’s from Raid 1.