Hmm yeah I've a bit of a play with the nfs client side, the nfs server is
purely web based, so it's limited to what I can play with.
What about the network side of things, with data coming in and back out on
the same interface?
On Tue, Sep 2, 2008 at 11:23 AM, Adam Goryachev <
[EMAIL PROTECTED]> wrote:
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> 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
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--
Best Regards,
Stephen
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