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Zkuq on 10 April 2023
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Pemalite said:
Zkuq said:

I'm not sure I'd pick RAID for any kind of data retention in home use... As the old saying goes, RAID is not a backup, and for a good reason. Helps a bit though, but with ransomware and other nonsense, I wouldn't trust RAID. Of course this coming is someone with no backup solution at all (too lazy to do anything about it so far, will probably be really sorry about it later)...

You can use RAID to mirror drives.

I know, but it doesn't help if something causes the data to turn bad happens to the data on one drive. Ransomware is an obvious example, but I wouldn't be surprised if some (possibly rare?) hardware faults could also cause data corruption that simply gets mirrored between the drives. I imagine RAID protects against a sudden loss of a drive, but that's about it. That might be sufficient protection depending on your needs, but I feel like it's important to know the limitations of RAID for backup purposes if you're considering RAID for backups.