From owner-freebsd-questions@FreeBSD.ORG Wed Jun 22 20:51:05 2005 Return-Path: X-Original-To: freebsd-questions@freebsd.org Delivered-To: freebsd-questions@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 3786A16A41C for ; Wed, 22 Jun 2005 20:51:05 +0000 (GMT) (envelope-from iaccounts@ibctech.ca) Received: from pearl.ibctech.ca (dev.eagle.ca [209.167.58.10]) by mx1.FreeBSD.org (Postfix) with ESMTP id C171743D4C for ; Wed, 22 Jun 2005 20:51:04 +0000 (GMT) (envelope-from iaccounts@ibctech.ca) Received: (qmail 62931 invoked by uid 1002); 22 Jun 2005 20:51:03 -0000 Received: from iaccounts@ibctech.ca by pearl.ibctech.ca by uid 89 with qmail-scanner-1.22 (clamscan: 0.73. spamassassin: 2.64. Clear:RC:1(209.167.16.15):. Processed in 2.78586 secs); 22 Jun 2005 20:51:03 -0000 Received: from unknown (HELO fuze) (209.167.16.15) by dev.eagle.ca with SMTP; 22 Jun 2005 20:51:00 -0000 From: "Steve Bertrand" To: "'P.U.Kruppa'" Date: Wed, 22 Jun 2005 16:53:04 -0400 MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit X-Mailer: Microsoft Office Outlook, Build 11.0.5510 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1441 thread-index: AcV1m2G7h49cungpRtuf/5nyQh7CmwB0LqEw In-Reply-To: <20050620151328.M11229@www.pukruppa.net> X-Qmail-Scanner-Message-ID: <111947346167562917@pearl.ibctech.ca> Message-Id: <20050622205104.C171743D4C@mx1.FreeBSD.org> Cc: freebsd-questions@freebsd.org Subject: RE: Yet another RAID Question (YARQ) X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 22 Jun 2005 20:51:05 -0000 > -----Original Message----- > From: owner-freebsd-questions@freebsd.org > [mailto:owner-freebsd-questions@freebsd.org] On Behalf Of P.U.Kruppa > Sent: Monday, June 20, 2005 9:28 AM > To: Ted Mittelstaedt > Cc: P.U.Kruppa; freebsd-questions@freebsd.org > Subject: RE: Yet another RAID Question (YARQ) > > On Mon, 20 Jun 2005, Ted Mittelstaedt wrote: > > >> On Sun, 19 Jun 2005, Ted Mittelstaedt wrote: > >> > >>> > >>> What model of Proliant? > >> ML 350 G4 > >> > > > > Oh good, we have a customer that has been looking at one of > these for > > FreeBSD and I'm glad to hear that you didn't have problems with it. > Absolutely smooth - and I am really no kind of computer expert. > > > With these all you get is hot-swap support although you > might have to > > do a camcontrol rescan after swapping the disk. > Yes, I have read that in some recent thread. > > > Actually, the Windows management tools for this raid > controller on a > > server are observational as well. There is no rebuild tool or > > anything like that. > > When we set these systems up > > for customers (All the recent Proliants use the same RAID > controller) > > we usually configure them RAID-5 with 4 physical disks, the > setup will > > set 3 of the disks in the array, and one a hot-spare. And in the > > event of a disk failure, which you can tell by looking at the disk > > drive lights, or going into the management interface, you > simply pull > > out the bad disk and put in the replacement and the RAID card takes > > care of the rest of it. > The City of Wuppertal couldn't buy me a third disc, because > that would have superceded the limit of 2.5 kEURO, which > would have required some special administrative act ... :-) . > > > As for knowing if a disk has failed, > > I think the only way to know is to watch the little lights > on the disk > > front. > After reading Alex' story about running a RAID 1 with a > defect disc for three years, I believe it will suffice, when > I check things with every system upgrade. I know this technique isn't feasable in all situations, but I try to have duplicate hardware. Especially with my IDE RAID1 servers, I'll from time to time during a maintenance window pop one of the RAID disks out, throw it in another box and ensure BOTH machines boot up with individual disks. This is a sure test to ensure RAID is working. Mind you, I also back up using rsync for critical stuff to another box, and to tape as well. Steve > > Uli. > > > ********************************************* > * Peter Ulrich Kruppa - Wuppertal - Germany * > ********************************************* > _______________________________________________ > freebsd-questions@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-questions > To unsubscribe, send any mail to > "freebsd-questions-unsubscribe@freebsd.org" >