Benjeman J. Meekhof
bmeekhof at umich.edu
Wed Apr 16 00:17:11 UTC 2008
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).
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.
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?
> Ari Maniatis
> Level 1, 30 Wilson Street Newtown 2042 Australia
> phone +61 2 9550 5001 fax +61 2 9550 4001
> GPG fingerprint CBFB 84B4 738D 4E87 5E5C 5EFA EF6A 7D2E 3E49 102A
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Benjeman Meekhof - UM ATLAS/AGLT2 Computing
office: 734-764-3450 cell: 734-417-6312
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