Date: Tue, 28 Aug 2007 06:00:45 -0400 From: Gary Palmer <gpalmer@freebsd.org> To: Darren Pilgrim <phi@evilphi.com> Cc: Tom Judge <tom@tomjudge.com>, freebsd-stable <freebsd-stable@freebsd.org>, Tom Samplonius <tom@samplonius.org> Subject: Re: A little story of failed raid5 (3ware 8000 series) Message-ID: <20070828100045.GB970@in-addr.com> In-Reply-To: <46D1C89B.8070408@evilphi.com> References: <9812134.411188026402612.JavaMail.root@ly.sdf.com> <46D00CE1.9@tomjudge.com> <46D1C89B.8070408@evilphi.com>
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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
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