Date: Sat, 28 Aug 1999 23:32:53 +0200 From: sthaug@nethelp.no To: ken@kdm.org Cc: groudier@club-internet.fr, dkelly@hiwaay.net, syssgm@detir.qld.gov.au, freebsd-scsi@FreeBSD.ORG Subject: Re: Seagate vs Quantum.. opinions? Message-ID: <47459.935875973@verdi.nethelp.no> In-Reply-To: Your message of "Sat, 28 Aug 1999 01:37:39 -0600 (MDT)" References: <199908280737.BAA94296@panzer.kdm.org>
next in thread | previous in thread | raw e-mail | index | archive | help
> In any case, David, I'd say try the following things, in light of what > Gerard said: > > - first, try using the -v switch, -f phys (instead of block format, since > only Quantum disks seem to support it, and the SCSI-2 spec says: "NOTE > 110 The use of the block format is not recommended. There is no universal > model that sensibly defines the meaning of the logical block address of > a defect. In the usual case, a defect that has been reassigned no longer > has a logical block address.") and -PG. Using -v results in "CAM status is 0" here. > - If that doesn't work, try increasing the dlist_length parameter in > readdefects() in src/sbin/camcontrol/camcontrol.c to 65536. Are you sure you mean 65536? If I try 65536, it *seems* to work (no error message), but all I get is "Got 0 defects". But I'm wondering if 65536 is being interpreted as 0 (because this is a 2 byte field). I tried a slightly smaller number (65532), and got the expected error messages. I don't believe this is a result of a defect larger than 65536, since it happens with several disks here, some of them pretty new. > It would also be helpful to see what happens on an Adaptec controller, as > this could be the result of a bug in the NCR driver. It works just fine on an Adaptec controller, no problem retrieving defect list from IBM disks using "camcontrol defects -f phys -P". With an NCR based controller, the kernel logs (pass0:ncr0:0:2:0): extraneous data discarded. (pass0:ncr0:0:2:0): COMMAND FAILED (9 0) @0xc086c200. and camcontrol says "error reading defect list: Input/output error". I think we need the NCR driver experts. Steinar Haug, Nethelp consulting, sthaug@nethelp.no To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-scsi" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?47459.935875973>