BackupPC-users

[BackupPC-users] Backing up many small files

2013-02-05 04:14:16
Subject: [BackupPC-users] Backing up many small files
From: "Sorin Srbu" <sorin.srbu AT orgfarm.uu DOT se>
To: "'General list for user discussion, questions and support'" <backuppc-users AT lists.sourceforge DOT net>
Date: Tue, 5 Feb 2013 09:36:43 +0100
Hi all,

I see incremental backup times in the 300-400 minutes range every day on this 
particular machine. A full backup is about 28 GB and each daily incremental 
backup is in the 150-250 MB range. The incrementals take like forever (well, 
about 6-7 hrs each).

Is there *anything* I can do to tweak the backup-speed of BPC in order to 
speed up a backup from this machine that contains hundreds of thousands of 
small files? Maybe something on the other machine?

BPC's sitting on a server running CentOS 5.9 and has a 4x harddrive raid0 (2 
TB) with ext3. Regular rsync is used. The network is a 100 MBps-type. Noadir 
and noatime is also set on the raid-array. Also in BPC I set 
"--checksum-seed=32761", after reading some hints on this.

The backupee is a two-drive computer with instrument-data on the secondary 
drive running RHEL4.3. The SATA used should be fast enough I imagine.

The BPC server is by now rather ancient, but still usable for casual 
instrument-data backups.

Thanks in advance for any insights on this.

-- 
BW,
        Sorin
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