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Re: [rdiff-backup-users] Measuring transfer size
From: |
Jakob Unterwurzacher |
Subject: |
Re: [rdiff-backup-users] Measuring transfer size |
Date: |
Mon, 17 Aug 2009 22:58:06 +0200 |
User-agent: |
Thunderbird 2.0.0.22 (X11/20090608) |
Dave Kempe schrieb:
> Hi,
> this has been discussed before - ultimately, the actual transferred data
> cannot be measured by rdiff-backup as it uses SSH, which may or may not
> compress things, and there is overhead and compression to factor in. You need
> to use a tool external to the ssh session to measure the traffic used by a
> typical backup session.
> dave
This should give you an idea about the worst-case date transfer (it
ignores the ssh compression advantage):
rdiff-backup --remote-schema 'pv -b -N Upload | ssh %s '\''rdiff-backup
--server'\'' | pv -b -N Download' SOURCE DEST
(uses pv - "Pipe Viewer", Ubuntu package for example:
http://packages.ubuntu.com/jaunty/pv )
Jakob