From: Jamie Lokier Subject: Re: [Qemu-devel] Re: Notes on block I/O data integrity Date: Wed, 26 Aug 2009 19:55:42 +0100 Message-ID: <20090826185542.GE25726@shareable.org> References: <20090825181120.GA4863@lst.de> <20090825202508.GB4807@nik-comp.linuxbox.cz> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: Christoph Hellwig , nikola.ciprich@linuxbox.cz, kopi@linuxbox.cz, rusty@rustcorp.com.au, qemu-devel@nongnu.org, kvm@vger.kernel.org To: Nikola Ciprich Return-path: Received: from mail2.shareable.org ([80.68.89.115]:45835 "EHLO mail2.shareable.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752649AbZHZSzv (ORCPT ); Wed, 26 Aug 2009 14:55:51 -0400 Content-Disposition: inline In-Reply-To: <20090825202508.GB4807@nik-comp.linuxbox.cz> Sender: kvm-owner@vger.kernel.org List-ID: Nikola Ciprich wrote: > clustered LVM SHOULD not have problems with it, as we're using just > striped volumes, Note that LVM does not implement barriers at all, except for simple cases of a single backing device (I'm not sure if that includes dm-crypt). So your striped volumes may not offer this level of integrity. -- Jamie