This is from Walter Soyka on the Archive forum on Cow.
As you consider any RAID, please remember this -
Bob Zelin -
"A RAID system will cost a bit more, but it will give you a larger volume size, more speed, and some redundancy to protect you from limited hard disk failures. You'll have to decide if those features are worth the added cost to you.
I'd add this advice:
All hard drives fail -- it's a matter of when, not if. Back everything up, because if you only have one copy of a piece of data, you are a quick accident or equipment failure away from having zero copies.
RAID is not backup, so this advice applies to RAID systems as well. Even if you get a RAID, you might do well to also get additional hard drives so you can keep multiple copies of the same data.
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