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I'm dumping my vdi's over to a mounted cifs nas just for backup . rsync seems to think is is local so it just copies the whole 6 gig file again rather than differences. Can I suppress this behavior as I'm only copying at about 4 megs/sec so it takes about half an hour.

Anyone doing this differently?

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up vote 0 down vote accepted

You can't change this - there is no way your rsync process can know what portions of your file have changed before reading both versions of it. If you need the rdiff functionality, you have to run an rsync receiver at the CIFS NAS' side.

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Well that's depressing. Thanks for the response. – SibLiant Jan 23 '12 at 11:30

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