[Gluster-users] Multi-head NFS/Gluster

Nux! nux at li.nux.ro
Mon Jan 13 09:34:41 UTC 2014


On 13.01.2014 01:54, Paul Robert Marino wrote:
> I have to say its not always a good option and honestly though it may
> seem to work on a dumb switch it really doesn't very well at all in
> fact a dumb switch will make it worse. The one piece of advice I can
> give you is if you do it max out the receive buffers only not the send
> buffer on every network card (not the switch) or your re-transmit
> numbers may eat more bandwidth than you gain plus the TCP window
> scaling issues will compound it.
> I spent several weeks trapped in a room doing low level packet
> analysis with a group of people because some one used round robin mode
> or as it is also called switch assisted load balancing incorrectly and
> were killing our core switches. If you really absolutely need the
> speed spend the money on 10Gb network but I doubt it will fix your
> problem. If I had to take a guess your bandwidth limitation most
> likely lies else where.

Thanks, Paul. My problem is the lack of 10 Gbps right now, so I am 
trying to make up for it with these weird ideas. Maybe the best way to 
do it is just wait for 10 Gbps budget.

Cheers :)

-- 
Sent from the Delta quadrant using Borg technology!

Nux!
www.nux.ro



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