Date: Sun, 26 Aug 2007 11:38:19 -0700 From: Darren Pilgrim <phi@evilphi.com> To: Tom Judge <tom@tomjudge.com> Cc: freebsd-stable <freebsd-stable@freebsd.org>, Tom Samplonius <tom@samplonius.org> Subject: Re: A little story of failed raid5 (3ware 8000 series) Message-ID: <46D1C89B.8070408@evilphi.com> In-Reply-To: <46D00CE1.9@tomjudge.com> References: <9812134.411188026402612.JavaMail.root@ly.sdf.com> <46D00CE1.9@tomjudge.com>
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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. -- Darren Pilgrim
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