RAID is a computer acronym meaning “Redundant Array of Independent Disks.” Wikipedia. In this case we’re talking about “mirrored” disks, one of the simplest RAID configurations, where two identical disks contain identical data so that one can continue operating if the other fails. Since they contain the same data the second disk doesn’t add any disk capacity, but it does add reliability. Pros:

• The hard disk is MUCH less apt to crash. Only people who have experienced a crash can fully appreciate this.
• Perhaps I can get away with less backup, e.g. only back up the most sensitive data.
• Or, I can buy a THIRD drive and hot-swap it, so the swapped-out drive is the backup.
• I’d enjoy the experience of setting it up and using it.

Cons:

• It’s more expensive: I need two drives, not one, and the motherboard (which manages the drives) costs a little more.
• The drives will make twice as much noise. Hmmm.
• It doesn’t solve ALL backup problems: If I accidentally permanently delete a file, it will be gone on BOTH drives; if lightning hits the computer it could easily take out both drives.

I’m leaning toward…

I do need a new computer in the office; mine is a slow eight-year-old Gateway 600 MHz, with upgraded memory, disk, and operating system. It’s time for a new one that can grow with the times. Here are some specifications:

• Quieter than my old Gateway tower, which itself really isn’t too bad but is the noisiest thing in the room when the TV is off.
• Speedy (modern) but not “extreme”. The idea is to have a computer that will last a while and be upgradable for a while. We’re talking dual processor for sure, but maybe not quad.
• It doesn’t have to be small - it sits on the floor next to the desk.
• At least 2 Gb RAM, 800 MHz or more.
• At least 250 Gb hard disk, 3 Gb/sec.
• Windows XP Professional (preferred), Windows Vista Business otherwise.
• Vista Business compatible for sure. I don’t even know what that means yet.
• CD/DVD read and write dual layer.
• Floppy (yes, I really do want a floppy, even if I never use it).
• PS/2 mouse and keyboard ports (I like my existing keyboard & mouse).
• Vanilla audio and graphics. This machine means business, not games or entertainment.
• Modem. Occasionally we need dialup when DSL fails.
• Serial port.
• Lifetime

…