Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754387AbbFJTWk (ORCPT ); Wed, 10 Jun 2015 15:22:40 -0400 Received: from mx1.redhat.com ([209.132.183.28]:39004 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752543AbbFJTWj (ORCPT ); Wed, 10 Jun 2015 15:22:39 -0400 Date: Wed, 10 Jun 2015 14:22:36 -0500 From: David Teigland To: Goldwyn Rodrigues Cc: linux-kernel@vger.kernel.org, NeilBrown Subject: Re: clustered MD Message-ID: <20150610192236.GE333@redhat.com> References: <55773DE1.7080107@suse.com> <20150609194505.GA17536@redhat.com> <557747AB.7080706@suse.com> <20150609203056.GB17536@redhat.com> <5577AFF4.6020505@suse.com> <20150610150151.GA333@redhat.com> <5578575F.1040006@suse.com> <20150610154834.GC333@redhat.com> <5578647D.102@suse.com> <20150610170533.GD333@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20150610170533.GD333@redhat.com> User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 823 Lines: 16 On Wed, Jun 10, 2015 at 12:05:33PM -0500, David Teigland wrote: > Separate bitmaps for each node sounds like a much better design than the > cmirror design which used a single shared bitmap (I argued for using a > single bitmap when cmirror was being designed.) Sorry misspoke, I argued for one bitmap per node, like you're doing, so in general I think you're starting off in a much better direction than I saw before. (I still doubt there's enough value in this to do it at all, which is another reason I'm particularly interested to see some real world success with this.) -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/