I am mainly hosting Jellyfin, Nextcloud, and Audiobookself. The files for these services are currently stored on a 2TB HDD and I don’t want to lose them in case of a drive failure. I bought two 12TB HDDs because 2TB got tight and I thought I could add redundancy to my system, to prevent data loss due to a drive failure. I thought I would go with a RAID 2 (or another form of RAID?), but everyone on the internet says that RAID is not a backup. I am not sure if I need a backup. I just want to avoid losing my files when the disk fails.
How should I proceed? Should I use RAID2, or rsync the files every, let’s say, week? I don’t want to have another machine, so I would hook up the rsync target drive to the same machine as the rsync host drive! Rsyncing the files seems to be very cumbersome (also when using a cron job).

  • IsoKieroEnglish
    4·
    1 day ago

    everyone on the internet says that RAID is not a backup

    Because it is not.

    I just want to avoid losing my files when the disk fails.

    Backups. Preferably multiple. At least one of them off site.

    I would hook up the rsync target drive to the same machine as the rsync host drive

    And lose both in case there’s a power supply failure, voltage spike on the grid, water spill or something else. Plenty of options which will fry the whole system.