Hello Listers: Again, I thank Mike, Alex, Randy, and Kirk for the answers to my swap space question in thread: "OS X Panther Partition Size and Swap Space." I understand from your comments that more info about my system would help. So I'll expand a bit. I suspect my wife and I will be using OS 9 and Classic for another year or so. I have a QuickSilver G4 733 which came with both OSs installed. I quickly upgraded to 9.2.2, all that is fine. I played around with upgrading 10.0.4 through a couple updates of 10.1 and got disgusted. It was not worth the time just to have the latest X to play with. Wasn't going to "use" it anyway. Panther was well worth waiting for in my mind. Now I'm getting serious about it. I have two internal 40GB hard drives with 9 volumes. That has been handy. There is a little bit of Photoshop Elements work here with a light load of photos. There is no music, no movies, and no DVD. Most of the hard drive space is still unused. Other than photos, the other valuable data consists of genealogy data bases in Reunion, mail, correspondence, and archived web pages. The last data backup took less than two CD-ROMs. You guys have given me the most rational arguments that I have seen so far to avoid partitioning with OS X. But I already have partitions set up focused on OS 9. I understand I may as well keep those things that way. So for Drive One, I see 5 partitions for: OS 9.2.2 (boot) Scratch (for Photoshop Elements v1) OS 9 Applications and Data Backup for OS X Data Test OS X (Panther and whatever comes up, emergency utilities) For Drive Two, I would have 2 or 3 partitions for: OS X and Classic (minimal OS 9) Scratch (for later Photoshop Elements v2, I understand this is appropriate, TRUE?) Backup for OS 9 Data As part of this sanity check, it is best to let OS X do its own magic for memory management and for file integrity. Clean installs of future versions of OS X and any maintenance on Panther do not really put at risk the applications and data on the same volume, but we must routinely back up the data. I have recently seen on another e-list that having applications and data on separate volumes of the same drive causes needless disk-thrashing (head movement). TRUE? Therefore, I will recombine the OS 9 applications and data that I now have on separate partitions of the same drive. Your comments on all this are most welcome. -- Al Poulin Anger, hate, and revenge are for the devil, forgiveness is for God, proactive self-defense is for the rest of us.