Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.
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