Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933244AbXAACBi (ORCPT ); Sun, 31 Dec 2006 21:01:38 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S933242AbXAACBi (ORCPT ); Sun, 31 Dec 2006 21:01:38 -0500 Received: from mail.tmr.com ([64.65.253.246]:36837 "EHLO gaimboi.tmr.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932861AbXAACBh (ORCPT ); Sun, 31 Dec 2006 21:01:37 -0500 Message-ID: <45986D2D.8090009@tmr.com> Date: Sun, 31 Dec 2006 21:08:45 -0500 From: Bill Davidsen Organization: TMR Associates Inc, Schenectady NY User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.8.0.8) Gecko/20061105 SeaMonkey/1.0.6 MIME-Version: 1.0 To: Jan Engelhardt CC: Denis Vlasenko , Michael Tokarev , Helge Hafting , Marc Perkel , linux-kernel@vger.kernel.org Subject: Re: Raid 0 Swap? References: <44FB5AAD.7020307@perkel.com> <44FBFFFC.90309@tls.msk.ru> <200609181150.23091.vda.linux@googlemail.com> In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1324 Lines: 27 Jan Engelhardt wrote: > On Dec 28 2006 00:06, Mike Huber wrote: >> I would like to point out one key argument against raid0 swap partitions, >> which is that, should a drive failure occur, the least used programs in >> memory are most drastically affected. Unfortunately, in the case of a >> drastic drive failure in a standalone server, one of the most likely >> programs to be affected is getty, disallowing you from manually logging in. > > However, the footprint of getty is rather small, so its chance to run is higher > than an idle bigger task (dbus, resmgr, hal, perhaps cron or X) RAID-0 swap is not the thing to run if reliability is a must, clearly. Interestingly, after a long fight with poor RAID-5 write speed, I moved my swap to RAID-10, only to find that recovery disks don't know how to use it. Tried Fedora and then a live CD (puppy, I think). Detail on the RAID-5 performance thing in the linux-raid archives, won't rehash here. -- bill davidsen CTO TMR Associates, Inc Doing interesting things with small computers since 1979 - 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/