Mapped Drive

Matt McCutchen hashproduct+rsync at
Sat Sep 29 22:02:52 GMT 2007

On 9/28/07, Stephen Zemlicka <stevezemlicka at> wrote:
> Is there a way to have rsync cache the checksums for something like this and
> would that help?

I'm not sure exactly what you mean.  You said you were using the -c
(--checksum) option, which makes rsync decide whether to update each
destination file by reading the file in full and comparing its MD4/MD5
checksum with that of the source file.  Do you mean you want rsync to
cache the checksums of the destination files?  On which machine would
the cache be?

Anyway, if the issue is that you don't want rsync spending the
bandwidth to read the destination files for the --checksum check, just
remove -c and rsync will use the default size-and-mtime quick check.


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