From mboxrd@z Thu Jan 1 00:00:00 1970 From: berk walker Subject: Re: [PATCH 1/2] md bitmap bug fixes Date: Fri, 25 Mar 2005 15:54:29 -0500 Message-ID: <42447A85.2070409@panix.com> References: <7e6rg2-pj1.ln1@news.it.uc3m.es> <423B09EF.8070708@steeleye.com> <23krg2-4rr.ln1@news.it.uc3m.es> <423B2F7C.3030907@steeleye.com> <423EF12A.4030207@steeleye.com> <20050321185606.GA27541@percy.comedia.it> <423F2780.5000601@steeleye.com> <20050322093525.GL7040@percy.comedia.it> <8275h2-sn4.ln1@news.it.uc3m.es> <20050323203125.GD26683@percy.comedia.it> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit In-Reply-To: Sender: linux-raid-owner@vger.kernel.org To: "Peter T. Breuer" Cc: linux-raid@vger.kernel.org List-Id: linux-raid.ids as I understand it, the topic is what happens when a RAID0 which is split twixt remote sites loses communication. What would you suggest as a method to keep the obvious from happening? A proactive approach, perhaps? Since, it seems, that write requests do not have to be ack'd immediatly, there *will* be a total sync loss. Are the write logs deep enough to be able to be used to resync, once the systems realize that they are no longer connected? From what I've read, the bitmaps will be no help in reconstruction, but just in error detection (correct me if needed). This is indeed an interesting topic, and one that strikes close to home. b-