Mike Lovell wrote:
On 02/14/2011 12:59 PM, Dennis Jacobfeuerborn wrote:
I'm particularly worried about the networking side being a bottleneck
for the setup. I was looking into 10gbit and infiniband equipment but
they drive the cost up quite a bit and I'm not sure if they are
necessary if I can bond several 1gbit interfaces.
there are several more to read through. the basics i got from glancing
threads like these in the past is that bonding does okay for 2
interfaces but there isn't huge gains when going to 4 interfaces. also,
considering that a 4 port ethernet card is gonna cost about 200 on the
cheap end and can go much higher, using a older infiniband card or a
10gig-e card can make sense. there has been talk of inifiniband cards
that can do 10gbps for under $200 on the list but i haven't actually
done it myself. maybe someone else can chime in on that. i've also seen
10gig-e gear for under $500.
the big cost is the switches. 10g switches, even small ones, start at
around $3k and go up from there.
for a while mellanox had a ddr ib "kit", with four or so cards, sfp's,
cables, and the switch, for around $6-7k. while that's still a big
budget bite to swallow, $7k to network 4 boxes at 20gbps is a fab deal.
yvette
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