From owner-freebsd-scsi Fri May 15 17:54:16 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id RAA07692 for freebsd-scsi-outgoing; Fri, 15 May 1998 17:54:16 -0700 (PDT) (envelope-from owner-freebsd-scsi@FreeBSD.ORG) Received: from narnia.plutotech.com (narnia.plutotech.com [206.168.67.130]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id RAA07584 for ; Fri, 15 May 1998 17:54:07 -0700 (PDT) (envelope-from gibbs@narnia.plutotech.com) Received: (from gibbs@localhost) by narnia.plutotech.com (8.8.8/8.7.3) id SAA24446; Fri, 15 May 1998 18:49:54 -0600 (MDT) Date: Fri, 15 May 1998 18:49:54 -0600 (MDT) From: "Justin T. Gibbs" Message-Id: <199805160049.SAA24446@narnia.plutotech.com> To: Paul Saab cc: scsi@FreeBSD.ORG Subject: Re: aborted commands Newsgroups: pluto.freebsd.scsi In-Reply-To: <19980515191832.A2506@mu.org> User-Agent: tin/pre-1.4-971204 (UNIX) (FreeBSD/3.0-CURRENT (i386)) Sender: owner-freebsd-scsi@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org In article <19980515191832.A2506@mu.org> you wrote: > Hi, > > recently I have been having problems with my scsi bus resetting > and aborting commands. I have 2 DACS-34330W drives connected > internally anda tape connected externally to a 2940UW. > > The error I got today was this: > May 15 19:01:37 elvis /kernel: sd3(ahc1:0:0): ABORTED COMMAND > asc:1b,0 Synchronous data transfer error > May 15 19:01:37 elvis /kernel: , retries:4 This usually means that the req/ack offset was overflowed. This typically happens due to noise on the req/ack line causing either the initiator or target to believe that a byte was acked when it wasn't. > It the disk dying or do I need to look closely at cable length and > termination? I have checked termination over and over and it it > correct. On the controller I have the bios set for termination > automatic if that helps in tracking the problem down. It may be that the automatic termination code is not working properly. Try using a manual termination setting. > Thanks, > > paul -- Justin To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-scsi" in the body of the message