-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
Stephen Vaughan wrote:
> Hi,
>
> We have backuppc running on a server, with an NFS mount to a NAS device.
> Everything is gigabit, there is only 1 nic in the backuppc server
> connected to the switch, so traffic comes in from the servers we're
> backing up and then straight back out the same nic to the NFS mount.
>
> I'm finding significant performance drops in backing up data to the NAS
> via the backuppc server. When we run backups to the local storage in the
> server, the backups run much faster and the network usage is almost
> triple. I know NFS won't be as fast as the local storage, but is it
> possible the network card is conngested?
>
> Would it be better to plug in a second nic to the backuppc server and
> allow traffic to come in via nic1 and out to the nfs mount via nic2?
You probably need to consider that performance of NFS is never likely to
be as fast compared to local disk (unless your NFS Server has slow disks
and your local disks are fast).
However, to optimise the performance you are getting now, you need to
start by focussing on improving your NFS performance, so ignore
backuppc, and run various tests, follow the available NFS performance
optimising howto's from google, and then throw backuppc back into the
mix.....
I don't recall the details, but I was having a number of performance
issues with my NFS server, and after fixing the NFS mount options, and
the NFS export options on the server, along with tuning a number of
variables on the NFS server (under /proc/something) I managed to resolve
most of my problems. (The final problem (which was probably the first
problem) was that the NFS client had faulty RAM)....
Hope this helps in some way...
Regards,
Adam
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.6 (GNU/Linux)
Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org
iD8DBQFIvJWjGyoxogrTyiURApr+AJ9CHIcTuvvynF3E1JZpc3srJRsE/QCgklp6
kv7sehnzzrnx7jmab+znrhw=
=I8A/
-----END PGP SIGNATURE-----
-------------------------------------------------------------------------
This SF.Net email is sponsored by the Moblin Your Move Developer's challenge
Build the coolest Linux based applications with Moblin SDK & win great prizes
Grand prize is a trip for two to an Open Source event anywhere in the world
http://moblin-contest.org/redirect.php?banner_id=100&url=/
_______________________________________________
BackupPC-users mailing list
BackupPC-users AT lists.sourceforge DOT net
List: https://lists.sourceforge.net/lists/listinfo/backuppc-users
Wiki: http://backuppc.wiki.sourceforge.net
Project: http://backuppc.sourceforge.net/
|
