Xref: utzoo comp.sys.mac.wanted:3125 comp.sys.mac.apps:4863 comp.sys.mac.misc:10078 Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!zaphod.mps.ohio-state.edu!unix.cis.pitt.edu!pitt!vax.cs.pitt.edu!jonathan From: jonathan@cs.pitt.edu (Jonathan Eunice) Newsgroups: comp.sys.mac.wanted,comp.sys.mac.apps,comp.sys.mac.misc Subject: incremental disk mirroring/backup software wanted Message-ID: Date: 25 Mar 91 18:29:59 GMT Sender: news@pitt.UUCP Organization: University of Pittsburgh Computer Science Lines: 24 As backups, I want to keep SyQuest cartridges as exact images of my main hard disk (ie, periodically mirrored disks). That way, if/when my main disk goes down, I can just whip out the most recent SyQuest cartridge, plug it in, and go. In order to ensure that I get all files updated, I just use the Finder to transfer whole top-level folders, which could hold megabytes of data each. This works, and I feel confident that I've managed to backup any files that might have changed, but it's not a very efficient method. I want a program that incrementally updates the backup disk, making it a mirror of the main disk. It should traverse both disks, and copy any new files or any files that have changed since the last backup to the backup disk, and optionally delete any files from the backup disk that have been deleted from the main disk. Note that this is different from a simple incremental backup program, which just copies files that have changed, but does not create a mirror image. A plus would be the ability to also work with floppy disks in an intelligent way. Ie, I copy files onto the floppy, go on the road, change the files, bring them back, and the program can incrementally copy back to my main disk any files that have changed. Are there any programs like this around? Cost, within reason, is not an issue.