2nd drive, Backing up vs. Raid 1
. Immediate recovery is nice but a secondary goal =)Please share your experience:
I can either make some back up scripts that copy vital data to the 2nd drive during nightly maintenance, or setup a RAID 1 (mirroring) configuration.
backup script
+data gets backed up, no write penalty
+have a chance to do some checks to make sure data that gets backed up, SHOULD be backed up
-downtime if main drive gos down. Have to do some config and replacement work.
RAID 1
+Fast recovery from main drive failure.
+data backed up is always current
-corruption to data that might have been caught via backup script approach will overwrite the 2nd drive.
-write disk penalty
Any comments? I know these two options don't have to be mutually exclusive, but assume it's one or the other for now. Also, I know offsite backup would be great, but that's not feasible right now.
Thanks
