On 01/15/2010 07:46 PM, David Trammell wrote:
I could use an ordinary copying script for the mail files, but I
figured if rsync can do it in some more optimal way, I'll stick with
it for simplicity (since it's working great for the several hundred
gigs of user files).
I saw the -W option, but I wasn't sure about how it behaves as the man
pages don't have many details, and I thought there might be other
options I missed. For -W the man page just says "copy files whole
(w/o delta-xfer algorithm)"
Does that mean it will copy all files with no comparison, or does it
at least verify that there is some change to the file first? I
suppose either way I can test it to see, which is faster, but if
someone can clarify the behavior I'd appreciate it.
Thanks,
David
Without -W set it will check for file date/time and I think size.
----- Original Message ----- From: <l...@consolejunky.net>
To: <rsync@lists.samba.org>
Sent: Friday, January 15, 2010 12:40 PM
Subject: Re: rsync taking a while on really large files
On 01/15/2010 07:22 PM, David Trammell wrote:
Can anyone suggest a good way to speed up rsync on really large
files? In particular, when I rsync the mail spool directory, I have
a few users with inboxes over 1GB and up and it seems to take a very
long time to just compare the files. Maybe it would be faster to
copy from scratch for files over a certain size or something if the
time stamps don't match.
David
rsync is meant to safe bandwidth, that's the main use of the tool. If
you have enough bandwidth, rsync without options might not be how you
want to use it.
Their is -W for whole files.
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