[walrus01]

> - "RAID is not a backup" primarily because "you could rm -rf".

or your house could burn down

or somebody could steal the computer while you're away on vacation

or lightning could strike your electrical grid service entrance or a nearby pole/transformer, causing catastrophic damage

or your house could flood

lots of other things.. if you really have important data it's important to plan to for the total destruction of the storage media and server holding it.