Greetings,
Benjeman J. Meekhof wrote:
Hi Aristedes,
We are/were testing FreeBSD on a Dell PE2950 with a Myricom 10GB
PCI-Express copper CX card. The driver seems mature. In tests out of
the box, I only saw about 3Gbps from iperf (testing against a linux
system...and maybe there are other issues with our environment/that
system to tune up yet...i wouldn't take that number too seriously).
If I remember correctly there is a problem with iperf, because it
utilize too much CPU. I saw patches flying around, and part of them are
in FreeBSD ports collection I think.
Personally I prefer netperf for doing network tests :)
I think some tuning could get it up to the maximum, anyways. It
certainly took a little work to get our Linux systems up to the max,
so I would say that in general the defaults with 10G drivers on any
system need some work to hit the maximum bandwidth.
-Ben
Aristedes Maniatis wrote:
I have a project with 3 workstations all needing high speed access to
about 6Tb of storage. In the past I've installed technology such as
fibre channel connected SAN storage (using Apple's xsan) for up to a
dozen workstations, but with only three workstations for this project
I'm thinking about 10GbE. The workstations will be OSX and the server
FreeBSD 7 with a bunch of disks in a RAID 5 or RAID 10 configuration.
Are 10GbE NICs and drivers significantly mature enough under FreeBSD
to accomplish this? I'd need to achieve about 60MB/s transfer rate
which is theoretically quite doable, as long as the drive array can
keep up with three streams of that speed. I'd use netatalk, samba or
nfs to share files depending on which I can eek the best speeds out of.
Alternatively I could populate the server with 1GbE NICs, one per
workstation and use cross over cable. That way there is absolutely no
contention on the network.
Any thoughts about the viability of this? Is 10GbE in production use
with FreeBSD and does it scale well?
Cheers
Ari Maniatis
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Best Wishes,
Stefan Lambrev
ICQ# 24134177
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