From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stefan Priebe - Profihost AG Subject: Re: is rados block cluster production ready ? Date: Mon, 21 May 2012 10:09:19 +0200 Message-ID: <4FB9F82F.9050208@profihost.ag> References: <531ff5f3-11d5-488e-adfb-68000f3c36c0@mailpro> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Return-path: Received: from mail.profihost.ag ([85.158.179.208]:53245 "EHLO mail.profihost.ag" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755312Ab2EUIJU (ORCPT ); Mon, 21 May 2012 04:09:20 -0400 In-Reply-To: Sender: ceph-devel-owner@vger.kernel.org List-ID: To: Tommi Virtanen Cc: Alexandre DERUMIER , ceph-devel@vger.kernel.org Am 18.05.2012 18:13, schrieb Tommi Virtanen: > wrote: >> About network, does the rados protocol support some kind of multipathing ? Or does I need to use bonding/lacp ? > > Bonding is almost always good if you have the switch ports & bandwidth > to spare. Even without bonding, one of the tricks RADOS does is that > each chunk of the RBD image is stored on a different OSD, so your > hypervisor will actually talk to even thousands of OSDs when the vm > accesses the disk. This way, the network link of any individual > storage node is less likely to become a performance bottleneck for the > vm. That's great but if you go the way of having for example 8x OSDs per server with 8 single Disks - how can i archieve that ceph is splitting my files to the correct servers for redundancy? Stefan