Date: Mon, 21 Jun 1999 10:39:16 -0700 (PDT) From: Doug White <dwhite@resnet.uoregon.edu> To: Khetan Gajjar <khetan@os.org.za> Cc: questions@FreeBSD.ORG Subject: Re: SCSI bad-block scanning Message-ID: <Pine.BSF.4.10.9906211036100.36767-100000@resnet.uoregon.edu> In-Reply-To: <Pine.BSF.4.10.9906190117150.35942-100000@chain.freebsd.os.org.za>
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On Sat, 19 Jun 1999, Khetan Gajjar wrote: > Is it possible to scan a SCSI disk for bad blocks using something > like camcontrol or newfs ? > > I haven't found anything in the man pages that would initiate a check; > camcontrol from what I can see only prints out what the drives report. Your SCSI BIOS can usually initate a verify scan that will force the drive to remap bad sectors. The Symbios/LSI Logic, Adaptec, and BusLogic cards I've found have this feature. If you're seeing bad sectors, enable AWRE and ARRE on SCSI mode page 1 using this command (change the -u parameter to match the unit you're editing): camcontrol modepage -n da -u 3 -m 1 -e -P 3 If they're already enabled, back up your data and ditch the drive. Doug White Internet: dwhite@resnet.uoregon.edu | FreeBSD: The Power to Serve http://gladstone.uoregon.edu/~dwhite | www.freebsd.org To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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