BackupPC-users

Re: [BackupPC-users] Improving large rsync backup performance

2012-07-09 14:12:18
Subject: Re: [BackupPC-users] Improving large rsync backup performance
From: Kenneth Porter <shiva AT sewingwitch DOT com>
To: "General list for user discussion, questions and support" <backuppc-users AT lists.sourceforge DOT net>
Date: Mon, 09 Jul 2012 10:56:41 -0700
On Monday, July 09, 2012 9:24 AM -0500 Michael Stowe 
<mstowe AT chicago.us.mensa DOT org> wrote:

> You don't say how big the drives are, but 40 hours says "terabytes" to me.
>  If that's not the case, I'd seriously consider [re]examining your rsync
> version on the client.  (Or perhaps beefing up your server.)

The total size is 0.5 TB according to the Host Summary page. The network is 
100 Mbit. The server is a Dell PE2900 with 4 GB. Probably the slowest link 
is the external USB drive used to hold the backup on the server, formatted 
as ext3. The client is mostly used for solid modeling.

I believe I'm using the default rsync args and don't know if there's 
anything I can do to improve things there:

            '--numeric-ids',
            '--perms',
            '--owner',
            '--group',
            '-D',
            '--links',
            '--hard-links',
            '--times',
            '--block-size=2048',
            '--recursive',

The rsyncd service running on the Windows client is from cwrsync, version 
3.0.8.

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