the time machine backup directory on an external drive is as follows:
Backups.backupdb->name of mac->backup time->disks->etc...
so you can backup two computers and their internal hard drives to the same time machine disk. just make sure both computers dont have the same name. you can check you macs name in system prefs->sharing.
Time Machine only looks to a single specified backup location, so no, not unattended. You'd have to manually toggle (and modify the exclusion list) each time.
What I actually want to do is backup 3 of the internal drives on my MacPro to my regular external Time Machine drive which is what I currently do and also back up just one of the internal drives separately to a fourth internal drive. Looks like I'll have to use a different program.
What I actually want to do is backup 3 of the internal drives on my MacPro to my regular external Time Machine drive which is what I currently do and also back up just one of the internal drives separately to a fourth internal drive. Looks like I'll have to use a different program.
Ah. For that independent backup you could just use Apple's Backup (requires .Mac), or use Carbon Copy Cloner or SuperDuper. I use a combination of Backup, SuperDuper!, and TM, all for different levels of redundancy and purpose.