On Mon, 6 Oct 2014 08:14:20 -0400 Nathan Stratton wrote: > On Sun, Oct 5, 2014 at 11:19 PM, Ariel Silooy <ariel@xxxxxxxxxxxxxx> > wrote: > > > Hello fellow ceph user, right now we are researching ceph for our > > storage. > > > > We have a cluster of 3 OSD nodes (and 5 MON) for our RBD disk which for > > now we are using the NFS proxy setup. On each OSD node we have 4x 1G > > Intel copper NIC (not sure about the model number though but I'll look > > it up in case anyone asking). Up until now we are testing on one nic > > as we dont have (yet) a network switch with la/teaming support. > > > > I suppose since its Intel we should try to get jumbo frames working > > too, so I hope someone would recommend a good switch that is known to > > work with most Intel's. > > > > We are looking for recommendation on what kind of network switch, > > network layout, brand, model, whatever.. as we are (kind of) new to > > building our own storage and has no experience in ceph. > > > > We are also looking for feasibility of using fibre-channel instead of > > copper but we dont know if it would help much, in terms of > > speed-improvements/$ ratio since we already have 4 NICs on each OSD. > > Should we go for it? > > > > I really would think about something faster then gig ethernet. Merchant > silicon is changing the world, take a look at guys like Quanta, I just > bought two T3048-LY2 switches with Cumulus software for under 6k each. > That gives you 48 10 gig ports and 4 40 gig ports to play with, to save > on optics use SFP+ copper cables. I should have our main network guy play with these things, since I don't have the budget to spend that much dough just for testing. Alas he's a FreeBSD zealot... ^o^ > If you want to save even more money go > with used 10 gig infiniband off eBay, you can do that for under $100 a > port. > When you say "10 gig infiniband", do you mean QDRx4 Infiniband (usually flogged as 40Gb/s even though it is 32Gb/s, but who's counting), which tends to be the same basic hardware as the 10Gb/s Ethernet offerings from Mellanox? A brand new 18 port switch of that caliber will only cost about 180$ per port, too. Christian -- Christian Balzer Network/Systems Engineer chibi@xxxxxxx Global OnLine Japan/Fusion Communications http://www.gol.com/ _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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