Hummmm.... What is a "slave" drive? You do have a master and slave on the ide bus but I believe both are treated the same by the OS. I get the impression that OSX really only wants to operate from one drive (Volume). So I guess You can treat a second drive as a "backup" drive, but since it shares the same interface/power supply, it's not the safest. I tried to use two drives, one with my home directories, and one with the rest of the OS and apps. This seemed like a great idea since it's obvious what needs to be backed-up, and what could be rebuilt if a disk failed. However there were lots of problems, I can't remember all the details, things just didn't work right. So I think one drive is best for OSX: buy a PCI adapter (no 128Gb limit) and use the biggest you think you need, use firewire for backup. I'm hoping I'll be proved wrong though (I have 4 x 18Gb SCSI drives in my work G4). John --- Ronald Steinke <ronsteinke at mac.com> wrote: > On 18 Jan 2007, at 07:54, Harlow, Virginia (V.L.) > wrote: > > > s there a way I can transfer the data on the 20GB > to a new, > > unformatted 100GB, then replace the 20GB with the > 100GB? I would > > then format the second 100GB as a slave drive. > > Download and use either CarbonCopyCloner (freeware) > or SuperDuper > (shareware) to make your first clone on the new > 100Gb drive. Your > plan for the second 100Gb drive is good, don't > change it.> _______________________________________________ > G4 mailing list > G4 at listserver.themacintoshguy.com > http://listserver.themacintoshguy.com/mailman/listinfo/g4 > > Listmom is trying to clean out his closets! Vintage > Mac and random stuff: > http://search.ebay.com/_W0QQsassZmacguy1984 ____________________________________________________________________________________ Do you Yahoo!? Everyone is raving about the all-new Yahoo! Mail beta. http://new.mail.yahoo.com