From mboxrd@z Thu Jan 1 00:00:00 1970 From: Joe Thornber Subject: Re: dm-cache caching network volume Date: Tue, 9 Sep 2014 16:47:25 +0100 Message-ID: <20140909154723.GB2967@debian> References: <1371547972.6128.8.camel@expiron> Reply-To: device-mapper development Mime-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Return-path: Content-Disposition: inline In-Reply-To: <1371547972.6128.8.camel@expiron> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: dm-devel-bounces@redhat.com Errors-To: dm-devel-bounces@redhat.com To: device-mapper development List-Id: dm-devel.ids On Tue, Jun 18, 2013 at 11:32:52AM +0200, =C9tienne BERSAC wrote: > Is it possible to have dm-cache "bufferize" blocks for network > failures ? dm-cache is a slow moving cache, foor instance, it does not attempt to pass all writes through the SSD. Since you cannot rule out IO going to the origin device it's not suitable for adding resilience to an intermittent network connection. Perhaps you should look at dm-raid? - Joe