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xen-users
Re: [Xen-users] XCP, NFS for storage and bonded NICs
On Monday 01 November 2010 21:58:08 Steve Thompson wrote:
> On Tue, 2 Nov 2010, Craig Miskell wrote:
> > So I guess I don't *want* to balance a single flow across multiple links.
> > So if I want to balance NFS traffic across links I need more than one
> > distinct TCP connection to the NFS server, which I'd guess needs at
> > least two distinct mounted shares.
>
> You could use balance-rr mode perhaps? I'm using this on a point-to-point
> drbd replication link between two systems with MTU=9000 and have seen
> throughput regularly around 165 MB/sec with peaks of up to 185 MB/sec.
>
> Steve
This is what I do as well, except by either not using a switch (direct links
like for DRBD) or by using two seperate ones. If I understand correctly,
balance-rr spoofs MAC addresses which will confuse the connected switch.
Anyway, it goes nice speed results. I do have to tweak tcp_reordering though
in my SLES machines. If I don't, I hardly get more speed than a single link.
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