rsync taking a while on really large files
davidst at csc.lsu.edu
Fri Jan 15 11:46:27 MST 2010
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
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.
----- Original Message -----
From: <leen at consolejunky.net>
To: <rsync at 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
> 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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