Existing users, 
Before 10.5 and Time Machine, I used SK all the time and it backed up my small company' data files every day automatically. It broke under 10.5, which forced me to use TM, which is better anyway, with its multiple, sequential backups (with SK, you only have the most recent b/u).
Just for kicks, I downloaded this update that works under 10.5, and backed up my Docs folder on my Macbook to a HD on another Mac on my home network. It took a while, but worked fine. The complaints that it doesn't make a bootable b/u - not sure if it's supposed to or not. It works great for data b/u, which I think is its intent, ideal for pre 10.5/TM users, or if you don't like TM.
Silverkeeper
Automate backups to external storage devices.
Version: 2.0.2
Good basic app for data backup
Feedback Type: Review
Contributed by: rebg_dotmac Saturday, November 22 2008 @ 05:51 PM PST
Product Platform: MacOSX
Used Product For: Less than a month
Overall Rating:
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Good basic app for data backup - Apta Good
Silverkeeper has the option to keep historical copies of the same file. This is from the Help file regarding the Options tab:If you would like to keep multiple generations of changed files in the Backup folder, that is a copy of each version of changed files, you can set No. of Copies to the maximum number of Backup generations you would like to keep.Reply to This
Monday, March 09 2009 @ 07:50 PM PDT