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On 10/01/2012 16:17, Ewan MacMahon wrote: >> -----Original Message----- >> From: Alessandra Forti [mailto:[log in to unmask]] >> Sent: 10 January 2012 14:42 >> >>> I think shaving the spec for the sake of a few hundred quid per node is >>> an entirely false economy. Ewan >> Even wasting it on non necessary features. >> The choice of the 10GBE cards will be up to the site clearly. >> > I really would put 10Gb cards in everything, now. It's > inconceivable that anyone's going to not have 10Gbit local > networking with a faster-than-one-gig offsite link by the end > of the five year period that this stuff is supposed to last > for, and there's no guarantee that we'll be able to get a > suitable, much less identical, card in (say) three years > when some site gets their network upgrade sorted. > > Ewan I meant the type (10GBASE-T/SFP+). I'd put 10G everywhere as well considering we are upgrading. As I said in my first reply to Mark at least for perfsonar type machines it is essential exactly because we are upgrading, otherwise we measure a bandwith that doesn't correspond to what is on the machines (at least the data servers). cheers alessandra