From owner-freebsd-hardware Sun Jul 26 19:30:24 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id TAA21268 for freebsd-hardware-outgoing; Sun, 26 Jul 1998 19:30:24 -0700 (PDT) (envelope-from owner-freebsd-hardware@FreeBSD.ORG) Received: from a486n1.znh.org (dialup6.gaffaneys.com [208.155.161.56]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id TAA21262 for ; Sun, 26 Jul 1998 19:30:19 -0700 (PDT) (envelope-from zach@gaffaneys.com) Received: (from zach@localhost) by a486n1.znh.org (8.8.8/8.8.8) id CAA05508; Mon, 27 Jul 1998 02:35:27 GMT (envelope-from zach) Message-ID: <19980726213527.A5281@znh.org.> Date: Sun, 26 Jul 1998 21:35:27 -0500 From: Zach Heilig To: "Russell L. Carter" , hardware@FreeBSD.ORG Subject: Re: 53C810 + Micropolis 3243NT quarrel References: <199807262010.NAA03721@psf.Pinyon.ORG> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Mailer: Mutt 0.91.1i In-Reply-To: <199807262010.NAA03721@psf.Pinyon.ORG>; from Russell L. Carter on Sun, Jul 26, 1998 at 01:10:53PM -0700 Sender: owner-freebsd-hardware@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org On Sun, Jul 26, 1998 at 01:10:53PM -0700, Russell L. Carter wrote: > what appears to be the problem is something up with the > 53c810 and a Micropolis 3243 NT. Under heavy disk load, > like building the world or untarring src onto the same > drive I get a hard hang, with the drive light solid on, > and the console message: > ncr0: timeout ccb=f0751c00 > I see from the archives that the 3243 sucks big rocks! > My problem looks entertaining because I see no mention > of the "M_DISCONNECT" curiosity. I think it is simply just a bad company. Your symptoms are exactly the same as mine were (except i had a 4743 NS). It seemed to have good speed, but it eventually just died. I think the board is on the way out -- it refuses to talk to FreeBSD (the 'timeout ccb=....' message), but it'll talk with the BIOS long enough to begin a boot). One thing to try (if it has anything important on it), is to run it at 5MB/sec. When I bumped the speed down on mine (20 MB/sec to 10 MB/sec), it appeared to be all right for awhile (4-5 months). > So is there any voodoo I can do to civilize this drive? > I've got my three fan case all ready to keep it cool... It isn't an issue of keeping it cool, I don't think. I had lots of good airflow over mine before it "died". > scbus0 at ncr0 bus 0 > sd0 at scbus0 target 2 lun 0 > sd0: type 0 fixed SCSI 2 > sd0: Direct-Access > sd0: 10.0 MB/s (100 ns, offset 8) > sd0: M_DISCONNECT received, but datapointer not saved: > data=4b4d94 save=4b56b0 goal=4b56d4. > 4095MB (8388315 512 byte sectors) the M_DISCONNECT seems to be a trademark of Micropolis. -- Zach Heilig -- zach@gaffaneys.com Real Programs don't use shared text. Otherwise, how can they use functions for scratch space after they are finished calling them? To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hardware" in the body of the message