i use [1] superduper. time machine in leopard may provide the same capability. best...jf
[1] http://www.shirt-pocket.com/ On Oct 5, 2007, at 12:44 PM, Dan Crutcher wrote: > I am looking for the best software to: > > 1. Create exact copies of files/folders from one external hard drive > to another. > 2. Do so on a scheduled basis, i.e., every night at 3 a.m. > 3. Only copy or delete new or changed files when creating this one- > way backup (as opposed to a full backup that recopies all files in > the folder). > > I have been using LaCie's free Silverkeeper backup software to do > this for several years, but for some reason it is no longer correctly > detecting changed files on the source drive in a particular folder. > Even though the file on the source drive has changed, Silverkeeper > reports that it finds no difference between that file on the source > drive and one of the same name on the destination drive, therefore no > fresh copy is made and the backup is not accurate. > > I need either to figure out why Silverkeeper is not working right or > find a new backup program that can do the same thing reliably. > > Note that I am _not_ looking for incremental or full backups, as > Apple's Backup program does quite nicely. I'm looking for a "one-way > mirror" backup utility. Every night at a designated time the contents > of Folder A on Source Drive are mirrored on Destination Drive. If any > files have been deleted in Folder A on Source Drive, they will get > deleted in Folder A on Destination; if a file in Folder A on Source > has been added or changed it will be added or changed on Destination. > If a file on Source Drive has not changed and it already exists on > Destination, it will not be touched. > > Any recommendations? > > > > > _______________________________________________ > The next Louisville Computer Society meeting will > be October 23 at MacAuthority, 128 Breckinridge Lane. > Posting address: MacGroup at erdos.math.louisville.edu > Information: http://www.math.louisville.edu/mailman/listinfo/macgroup
