From mboxrd@z Thu Jan 1 00:00:00 1970 From: Dan Mick Subject: Re: questions on networks and hardware Date: Tue, 22 Jan 2013 13:05:09 -0800 Message-ID: <50FEFF05.1050700@inktank.com> References: <6C6B937F81BD480D8B439B27D504FE9C@inktank.com> Mime-Version: 1.0 Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: Received: from mail-pa0-f45.google.com ([209.85.220.45]:35757 "EHLO mail-pa0-f45.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751789Ab3AVVFN (ORCPT ); Tue, 22 Jan 2013 16:05:13 -0500 Received: by mail-pa0-f45.google.com with SMTP id bg2so4280326pad.4 for ; Tue, 22 Jan 2013 13:05:12 -0800 (PST) In-Reply-To: Sender: ceph-devel-owner@vger.kernel.org List-ID: To: Gandalf Corvotempesta Cc: Gregory Farnum , John Nielsen , ceph-devel@vger.kernel.org On 01/21/2013 12:19 AM, Gandalf Corvotempesta wrote: > 2013/1/21 Gregory Farnum : >> I'm not quite sure what you mean=85the use of the "cluster network" = and "public network" are really just intended as conveniences for peopl= e with multiple NICs on their box. There's nothing preventing you from = running everything on the same network=85(and more specifically, from d= ifferent speed grades to different boxes, but keeping them all on the s= ame network). > > I mean using two cluster network and two pubic networks. 4 NICs in to= tal. > 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=20 capability is there so that you *can* only use the faster gear for the=20 cluster traffic if you want to limit costs but still segregate traffic.= =20 If you're just after a fully-redundant network (by which I assume you= =20 also mean fully-redundant fabric, power, etc.), there's no reason it=20 can't all be fast gear. -- To unsubscribe from this list: send the line "unsubscribe ceph-devel" i= n the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html