>Thanks; I didn't know the details. I knew it was used a lot in servers, but I had no idea about the price range.

In my local store I can get the real cheap cards for $150, but the good ones cost up to $800


>You mean, without the RAID 0 part, right? The RAID 0 would be used for additional performance, but combining RAID 1 and RAID 0 would be a lot more expensive, and, as you say, generate heat as well.

Yep, only RAID 1.


>That is an interesting option for backup, which I hadn't considered before. Since the RAID controller (or software) is supposed to reconstruct the newly inserted disk when you insert it, I suppose you can take your time, and don't need to leave the computer idle while the "backup" runs.

I have a server with this setup, and every time we swap drives it takes around 45 minutes to update a 40 GB drive.