Hi all!

We are facing a performance issue when taking a full backup of our mail
server (>7000 users, 350 GB of data, running Debian linux).

The backup server has no problem with the other linux clients. It is
writing at around 100 KB/s... which is far from the 2 to 8 MB/s we are
used to have on the other clients.

It takes forever to backup all the user directories! And we simply
can't find where the bottleneck is... just that there are a lot of I/O
on the RAID on which these directories are stored.

Would it help to increase/decrease the parallelism for the client
and/or other clients (smaller filesystems)?

Does somebody on this mailing-list once faced a similar problem? Is the
upgrade of the client on the mail server a must?

Regards,
David

server: NetWorker 7.1.1 (running Solaris 8)
client: NetWorker 6.1.1 (running Debian linux, IMAP server, 350 GB on
external RAID)

___________________________________________________
David De Maeyer
Roskilde University Center, Department of Computer Science
Box 260, Hus 42.1, 4000 Roskilde, Denmark
voice (+45) 46 74 38 29 / fax (+45) 46 74 30 72

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