On 01/21/2013 12:19 AM, Gandalf Corvotempesta wrote:
2013/1/21 Gregory Farnum <greg@xxxxxxxxxxx>:
I'm not quite sure what you mean…the use of the "cluster network" and "public network" are really just intended as conveniences for people with multiple NICs on their box. There's nothing preventing you from running everything on the same network…(and more specifically, from different speed grades to different boxes, but keeping them all on the same network).
I mean using two cluster network and two pubic networks. 4 NICs in total.
Our cluster network will be 10GBe or Infiniband DDR/QDR, making a
fully redundany cluster network (two nics on each server, two
switches) will double our costs.
Well, again, you needn't use two different networks for Ceph; that
capability is there so that you *can* only use the faster gear for the
cluster traffic if you want to limit costs but still segregate traffic.
If you're just after a fully-redundant network (by which I assume you
also mean fully-redundant fabric, power, etc.), there's no reason it
can't all be fast gear.
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