[ni6t]

I just upgraded to Leopard on a Pro that had been on Tiger. I have been using SuperDuper! and a Drobo storage unit. The boot drive is 1TB; there is a second 1TB drive plus an additional two internal drives configured as 1.5TB Raid 1. That makes 3 internal volumes. The backup Drobo has 4 1TB drives configured as two 2TB volumes. (Some of the Drobo capacity is dedicated to its Raid functions and is not available for storage.)

I am interested to use Time Machine, but the sketchy guidance presented in Help suggests that only the boot volume can be backed up, and only to 1 other volume. SuperDuper! easily configures backups from multiple source volumes to corresponding multiple backup drives, although I previously had two source volumes backing up to two destination volumes.

I wish to back up all three source volumes, using Time Machine. Is this possible and, if so, how is it accomplished?

[bobtomay]

Have not researched for an answer to your specific question, but:

I use both SuperDuper! and TM. My suggestion, continue using SD! unless you specifically need a way to restore old, deleted or prior versions of files.

[ni6t]

I contacted the Apple Experts. The sparse description of TM is the story--it works with one source volume and one destination volume, preferably twice as large as the source volume. So my best course is to continue to use SuperDuper!