BackupPC-users

Re: [BackupPC-users] new switch, slower backups

2010-01-23 13:50:59
Subject: Re: [BackupPC-users] new switch, slower backups
From: klemens <zwiskle AT cable.vol DOT at>
To: "General list for user discussion, questions and support" <backuppc-users AT lists.sourceforge DOT net>
Date: Sat, 23 Jan 2010 19:29:26 +0100
Am Samstag, den 23.01.2010, 11:54 -0600 schrieb Les Mikesell:

or something like that ?

linuxpc: # mii-tool eth0
eth0: negotiated 100baseTx-FD flow-control, link ok


> A common cause of very slow networking is having one of the connections 
> configured for 'full duplex' where the other end is set to negotiate.  When 
> one 
> end doesn't negotiate the other is forced to pick half duplex which then 
> causes 
> errors.  Can you try some big file transfers with ftp or other faster 
> protocol 
> to get an idea of what the network is doing?  Then look for errors with 
> ifconfig 
> and the switch port management commands.  But backuppc's rsync speed is hard 
> to 
> predict since it has to read all the remote files for the block checksum 
> comparison and uncompress some on the server side.
> 


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