From mboxrd@z Thu Jan 1 00:00:00 1970 From: Guido Winkelmann Subject: Re: Performance test on Ceph cluster Date: Wed, 07 Mar 2012 12:23:55 +0100 Message-ID: <4352803.opIYE8Xzll@pc10> References: Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7Bit Return-path: Received: from unknownsite.de ([62.48.69.106]:41480 "EHLO hartes-hannover.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751092Ab2CGLYC (ORCPT ); Wed, 7 Mar 2012 06:24:02 -0500 Received: from pc10.localnet (pc10.asys-h.de [193.98.1.90]) by hartes-hannover.de (Postfix) with ESMTPSA id 93F6B10C866 for ; Wed, 7 Mar 2012 12:24:00 +0100 (CET) In-Reply-To: Sender: ceph-devel-owner@vger.kernel.org List-ID: To: ceph-devel@vger.kernel.org Am Freitag, 24. Februar 2012, 10:51:10 schrieb Tommi Virtanen: > On Fri, Feb 24, 2012 at 00:58, madhusudhana > wrote: > > 4. If you don't mind, can you please give me a bit of insight on cluster > > network, what it is and how i can configure one for my ceph cluster ? > > Will there be a significant performance improvement with this ? > > When a client submits a write to Ceph, it needs to be replicated > (usually to two replicas). If all the ceph servers have two network > interfaces, and you have two separate networks you connect the servers > to, you can make the replication traffic go over the second interface, > and thus you'll have more available bandwidth between the cluster and > the clients in the first one. That sounds really interesting, any pointers on how that can be configured? As far as I can see, this is going to me I will have to assign to IP addresses to each node, one for internal traffic, one for external... Regards, Guido