Existing users, 
iBackup
Simple-to-use backup/restore utility.
Version: 6.6.5
low speed problem
Feedback Type: Commentary
Contributed by: vitnyc Monday, February 25 2008 @ 04:44 PM PST
Product Platform: MacOSX
Used Product For: Less than a month
Recommend Product: YES
This software is based on rsync unix/linux program and it should not copy existing in the destination "old" untouched files by checking its size and date. In my case in settings I used ditto -rsrc and rsync -ave --delete it would copy over all files again even though there was just minor change in files list. So I ended up waiting for 4,5 hours copying 110G from one external drive to the other external drive (USB2). Isn't it too slow. Can anyone tell me what am I doing wrong.
Comments
low speed problem - balancedview
-not sure if this will help, but,I was reading up on the rsync command, which I believe iBackup uses, and in its FAQ page, it says that if a rsync operation seems to always recopy everything, it might be because of incorrect use of the -t parameter (timedate stamp).
info at: http://www.samba.org/rsync/FAQ.html
Tuesday, March 18 2008 @ 04:13 PM PDT
Firewire blows away USB2 at real world speed and.. - Lickableunix
You may be right about this software, haven't tried it yet, but I'll say i've found with both Mac & PC that USB2 external drives are painfully slow in every case, by comparison to Firewire (IEEE 1394.) Also, If the drives are more than 2/3rds full or so, it can not only be a major slowdown, but increases the risk of hardware failure of the drive. Drives need 'scratch space' to keep from working overtime. 'Not sure what else may be bogging you down.best wishes.
sgs, new orleans
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Tuesday, February 26 2008 @ 08:35 PM PST