Hi,
On Wed, 26 Oct 2005, Tomasz Chmielewski wrote:
I use rsync for backing up user data, profiles, important network shares etc.
(from several locations over WAN).
Overall it works flawlessly, as it transfers only changes, but sometimes
there are some serious hiccups.
Suppose this scenario, suppose it's 1 GB of files:
user shares:
/home/joe/data/file1
/file2
/...
/file1000
Now the user _moves_ that data to some other folder:
/home/joe/WAN_goes_crazy/file1
/file2
/...
/file1000
...and we start a backup process.
rsync will first transfer data from "/home/joe/WAN_goes_crazy/file...", and
then deletes "/home/joe/data/data...".
Basically, this is how rsync works, but in the end, we transfer 1 GB of files
over WAN that we already have locally - the only thing that changed was the
folder where that data is.
Is there some workaround for this (some intelligent script etc.)?
I guess it needs some intelligent users.
If you can teach your clients to process their moves in three steps:
1. hard link the old file to the new location
2. wait until the next rsync has run
3. delete the file at the old location
then rsync with -H will detect the hard link and not fetch the file over
the net.
Cheers -e
--
Eberhard Moenkeberg ([EMAIL PROTECTED], [EMAIL PROTECTED])
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