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Old 12-05-2011, 10:54 AM   #1
Registered: Dec 2003
Location: Issaquah, WA
Posts: 36

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Rsync Bandwidth Throttling

As part of our DR process we rsync a directory to a mirror server at our DR Site. The problem I am running into is it uses every bit of bandwidth it can grab, then I get users complaining about how the server is running slow. I tried using the --bwlimit switch but it doesn't seem to do anything.

We have a 10 meg connection to our DR Site. The command is listed below:

rsync --bwlimit=5000 -r -v -a -e ssh --delete <original> <destination>
We are running RHEL 5.

So am I doing something wrong here? I've tried different amounts behind the --bwlimit to see what i will do but it never makes a difference. It may or may not matter, but our main connection is a combination of 3 bonded gigabit adaptors.

Any help is greatly appreciated.

Old 12-05-2011, 04:07 PM   #2
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You do realise that the limit is expressed in KBPS (kilobytes/sec) .. so what you're asking rsync to do is restrict itself to 5 megabytes/sec on a link that is only capable of 1.25 megabytes/sec max.
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