how to use --checksum-seed ?

CSights csights at
Mon Oct 13 15:02:18 GMT 2008

	I've been trying to use "--checksum-seed" to speed up backups .  I have a 
homebrew script which creates incremental backups using hardlinks.  To save 
disk space I turn on --checksum so that when file's mod-times change rsync 
doesn't create a new file (breaking the hardlinking) unless the contents of 
the file are different as well.
	I tested the command:

#rsync -aHiy -r --delete --ignore-errors --checksum --checksum-seed=1 fromdir 

	but I couldn't find where the checksums were being cached.  

	How does one use --checksum-seed ?


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