From owner-freebsd-stable@FreeBSD.ORG Tue Aug 28 10:04:27 2007 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 0DA4016A417 for ; Tue, 28 Aug 2007 10:04:27 +0000 (UTC) (envelope-from gpalmer@freebsd.org) Received: from noop.in-addr.com (unknown [IPv6:2001:5c0:8fff:fffe::214d]) by mx1.freebsd.org (Postfix) with ESMTP id 9A8DD13C46B for ; Tue, 28 Aug 2007 10:04:26 +0000 (UTC) (envelope-from gpalmer@freebsd.org) Received: from gjp by noop.in-addr.com with local (Exim 4.54 (FreeBSD)) id 1IPxsL-000Bkj-Fh; Tue, 28 Aug 2007 06:00:45 -0400 Date: Tue, 28 Aug 2007 06:00:45 -0400 From: Gary Palmer To: Darren Pilgrim Message-ID: <20070828100045.GB970@in-addr.com> Mail-Followup-To: Darren Pilgrim , Tom Judge , freebsd-stable , Tom Samplonius References: <9812134.411188026402612.JavaMail.root@ly.sdf.com> <46D00CE1.9@tomjudge.com> <46D1C89B.8070408@evilphi.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <46D1C89B.8070408@evilphi.com> Cc: Tom Judge , freebsd-stable , Tom Samplonius Subject: Re: A little story of failed raid5 (3ware 8000 series) X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 28 Aug 2007 10:04:27 -0000 On Sun, Aug 26, 2007 at 11:38:19AM -0700, Darren Pilgrim wrote: > Tom Judge wrote: > >Tom Samplonius wrote: > >>The real solution is RAID scrubbing: a low level background process > >>that reads every sector of every disk. All of the real RAID systems > >>do this (usually scheduled weekly, or every other week). Most 3ware > >>RAID card don't have this feature. > >> > >>So rather than not using RAID5 or RAID6 again, you should just not > >>use 3ware anymore. > > > >If you use the 3dm2 management interface you can schedule verify and > >rebuild tasks to run on a regular basis. I think that 7500 series > >controllers can do this, 9500 and 9550's definitely can. > > Actually it's all 7/8/9xxx series cards. The 9xxx series cards also do > auto-verify so there's no need to schedule the task. Sorry, I do not believe that is the case. I have a 8506-4LP and if I click on Management -> Scheduling in the 3dm web interface it says (0x0C:0x0017): Scheduling is not supported on this controller model However you might be able to cheat using the tw_cli port to run the schedules out of cron rather than native on the card