I didn’t rip too many videos before I realized I needed a backup strategy. So I put 2 new drives in a Nexstar MX enclosure:
Since it supports RAID-1, I used that configuration, so AS I put things in the library they were backed up by the RAID to the second drive in the enclosure. In practice, this did not work so well. I got errors telling me files were corrupt and the server could not be found. I did not have ANY problems when I was using a single (not backed up) drive for Plex media storage (PMS). The single drive had become a redundant backup copy so I put that back as the primary PMS. Since then, no problems.
It is possible the RAID is defective or any number of other things. I’ve reconfigured that enclosure to 2 individual drives and it is storing and retrieving data just fine.
RAID storage MAY work fine for Plex, but THIS raid did not appear to be a good solution in this case.
I think you are getting a bit confused. RAID is not, I repeat NOT, about backups. It’s about fault tolerance and convenience, your array will keep working if a drive goes down, and can be rebuilt with a new disk while continuing to function. However:
If you delete a file accidentally it’s gone.
If a disaster destroys server (power surge, fire, flood etc) the all the data is gone.
If ransomware strikes then the data is gone.
If a file is corrupted then there is no clean copy to recover from.
A minimal backup strategy is to make a copy of the data to another drive (a USB drive, another array, tape, optical disks or whatever) and store it somewhere else. If you care about the data then proper backup strategy follows the 3-2-1 approach: three copies of the data, on two different types of media, with one copy held offsite.
