Here's my thinking on your setup. You aren't going to have enough space on a mirrored raid of two 320GB disks to match all the space available on the first two volumes, but in reality, you don't need to.
Mirror the two 320gb drives, creating a single mirrored 320gb volume for backups. Schedule SuperDuper to backup your data from the original two drives, excluding the boot volume. SuperDuper can compress the data from the other volumes to most likely fit the remaining 355GB (Volume 2 + Volume 4) onto the 320GB RAID. A compressed boot volume isn't going to be much use anyway, unless you restore it to another drive first. In the event of a catastrophic failure of a drive, I'm sure reinstalling the Apps and OS are much less of a concern than having to do data recovery for your pictures or projects. Hope this helps! Bryan On Jul 1, 2007, at 11:33 PM, Jerry Freeman wrote: > i'm trying to setup a mirrored raid, to be 'smart' backed up and > scheduled by superduper, and i'm confused. > > 1. will my setup work for mirrored raid, or do the volumes need the > exact equivalent partitions on the raid? my two spare drives > available for raid are 320G each, and the combined total of the > volumes is 415G. do i have to re-partition drive-1: volume-1 40G + > volume-2 30G + volume-4 250G = 320G total? that would be a bother. > > 2. do both drives on a raid need to be partitioned the same? > > my G5 10.4x setup: > > drive-1: 165G > > volume-1: boot 52G, > volume-2: projects 113G > > drive-2: 250G > > volume-3: scratch disk 8G (not backed up). > volume-4: photography-1 242G > > available drives for mirrored raid: > > drive-3: 320G > drive-4: 320G > > tia. best...jf > > _______________________________________________ > The next Louisville Computer Society meeting will > be July 24 at MacAuthority, 128 Breckinridge Lane. > Posting address: MacGroup at erdos.math.louisville.edu > Information: http://www.math.louisville.edu/mailman/listinfo/macgroup >
