I tried RAID before, because the idea that two hard disks mirror to each other, and thus prevent data loss in the event of bad sectors is appealing. But I discovered that once a hard disk went off, another would also go off, rendering the RAID useless.
How useful RAID is, in preventing data loss?
Answer
But I discovered that once a hard disk
went off, another would also go off,
rendering the RAID useless.
this is only valid for striped or spanned volumes. mirrored volumes are a different ballgame.
the various RAID levels are explained here.
and of course, RAID 1 is just another safety layer, not a substitute for a decent backup startegy.
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