-----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@lists.sourceforge.net List: https://lists.sourceforge.net/lists/listinfo/backuppc-users Wiki: http://backuppc.wiki.sourceforge.net Project: http://backuppc.sourceforge.net/
