UNSOLVED
RAID for backup
Currently, I backup my system to two external hard drives, which requires two separate backup operations. I keep one drive onsight and the other offsight. The process takes a few hours. The backups are not exactly equal, since some files change during the first backup operation since it takes so long, but this isn't really a big issue.
My thought is to get a RAID 1 system and only do a single backup operation, letting the RAID system handle making the second backup to the other drive. I would then keep one drive onsight and the other offsight. This would cut my backup time in half, since I only need to do one operation, and it would give me two exact equal backups. Granted, the drives in a RAID system are internal and not really meant for transportation, but that aside, is there a reason I should not go with this setup and keep on with my separate external drives and two backup method?
Dev Mgr
6 Operator
•
9308 Posts
•
3 Points
274
0
Posted October 14th, 2008 16:00
Which EMC array do you have?
Breaking a raid on a (near) daily basis isn't a good idea, even if done 'on purpose for backups only'.
I'd suggest to look into a disk-to-disk-to-tape backup, or disk-to-disk-to-disk. The last 'disk' would be your external drive.
What this means is that you back up your data to a different disk that's either local to your backup server or maybe a SAN-attached disk (e.g. Dell|EMC AX4-5i). Then from there in your case you can back this backup up to 2 different destinations; one disk to leave on site and another to take offsite (home, bankvault, etc).