On Mon, Mar 01, 2010 at 04:46:44PM -0500, Jim Dibb wrote:
On Mon, Mar 1, 2010 at 4:21 PM, Chuck Anderson <cra@wpi.edu> wrote:
I'm interested. I was considering using SSDs for my boot drive. Is RAID protection necessary/advisable using SSDs?
SSDs have much higher reliability than HDD. Mirroring is the only RAID level that does not impose a write penalty. Mirroring SSDs is expensive
Based on these 3 points, I'd say a backup is a much better solution than RAID, unless you want to (R)AID-0 them into a stripe for even more insane performance.
But then again, you didn't state how important your uptime of your system is. Sorry for leaving that bit out....
Uptime/availability isn't that important, but backups are since RAID *is* my backup (plus rsync to other RAIDed systems for the most important data). With traditional disk drives, it hasn't been too expensive to slap a 2nd system drive in for RAID 1/mirroring. SSDs are much more expensive, so if as you say they are more reliable, perhaps I can forgo the expense of doing RAID on them.