SAS HBA LSI 9200-8e supported under 8.2?

[Freddie Cash]

On Fri, Mar 25, 2011 at 8:47 AM, Rumen Telbizov <telbizov at gmail.com> wrote:
> On Fri, Mar 25, 2011 at 7:38 AM, Freddie Cash <fjwcash at gmail.com> wrote:
>> On Fri, Mar 25, 2011 at 5:28 AM, Denny Schierz <linuxmail at 4lin.net> wrote:
>> > So, how complicated is load balancing with two Gb Network cards? :-) Ok,
>> > that should be a new thread;-)
>>
>> Simple as pie.  Read through lagg(4) to see how it's done from the
>> command-line using ifconfig(8).
>>
>> ifconfig_lagg0="laggproto round-robin laggport em0 laggport em1 inet
>> 192.168.0.1/24"
>
> That's actually an interesting problem (although it really belongs to a
> different thread).
> Freddie, have you tried this with an HP Procurve (say 2910al) switch.
> I did and a dual gigabit connection between two machines made the switch
> cpu utilization to jump from around 1% to 30%. I guess it might be HP
> specific problem due to the enormous mac address bounce between the two
> ports. I am curious to know if anybody else has experienced similar
> problems?

Yes, using LACP trunking on the switch and lagg(4).  I'll have to
double-check the exact switch models but I believe one is a 2910 and
the other is a 28-something.

I've also done it using load-balance and fail-over using unmanaged
switch ports.  Never used round-robin, though.

-- 
Freddie Cash
fjwcash at gmail.com