From owner-freebsd-questions Sat Oct 24 20:22:25 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id UAA01126 for freebsd-questions-outgoing; Sat, 24 Oct 1998 20:22:25 -0700 (PDT) (envelope-from owner-freebsd-questions@FreeBSD.ORG) Received: from pcpsj.pfcs.com (harlan.fred.net [205.252.219.31]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id UAA01116 for ; Sat, 24 Oct 1998 20:22:13 -0700 (PDT) (envelope-from Harlan.Stenn@pfcs.com) Received: from mumps.pfcs.com [192.52.69.11] (HELO mumps.pfcs.com) by pcpsj.pfcs.com (8.8.8/8.8.8) via ESMTP id ; Sat, 24 Oct 1998 23:20:51 -0400 (EDT) Received: from brown.pfcs.com [192.52.69.44] (HELO brown.pfcs.com) by mumps.pfcs.com (8.8.8/8.8.8) via ESMTP id ; Sat, 24 Oct 1998 20:20:51 -0700 (PDT) Received: from localhost [127.0.0.1] (HELO brown.pfcs.com) by brown.pfcs.com (8.8.8/8.8.8) via ESMTP id ; Sat, 24 Oct 1998 23:20:50 -0400 (EDT) X-Mailer: exmh version 2.0.2 2/24/98 To: Greg Lehey cc: questions@FreeBSD.ORG Subject: Re: debugger("bt742a")? In-Reply-To: Greg Lehey's (grog@lemis.com) message dated Sun, 25 Oct 1998 13:31:04. <19981025133104.G16609@freebie.lemis.com> X-Face: "csXK}xnnsH\h_ce`T#|pM]tG,6Xu.{3Rb\]&XJgVyTS'w{E+|-(}n:c(Cc* $cbtusxDP6T)Hr'k&zrwq0.3&~bAI~YJco[r.mE+K|(q]F=ZNXug:s6tyOk{VTqARy0#axm6BWti9C d Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Date: Sat, 24 Oct 1998 23:20:49 -0400 Message-ID: <8487.909285649@brown.pfcs.com> From: Harlan Stenn Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG Greg, The two 4-mm drives I have are Connor DDS-2 drives, and they're probably about 2 years old. Neither gets a lot of use. I clean them more often than the cleaning light comes on (which is usually after an older tape gets read). Is it "worth" overhauling the DDS-2 drives? I've avoided 8mm because I'm not fond of the wear caused by helical scanning. If this is true, I figure my choices are: - Overhaul my existing drives - get new 4mm drives - get DLT drives (*Much* more expensive) If I could find a writable DVD drive I'd consider that as my backup medium. CDRoms at 600M are just too small. Suggestions? The "second" machine (ah controller and my primary amanda server) is where I first noticed the problem. Lately, certain filesystems refuse to be backed up and end up on the holding disk, and I cannot amflush them to tape. I noticed a rare disk sector I/O problem, and reformatted the disk. Even so, when I would try to read or write a tape on this system, I would frequently get a system SCSI lockup that required hitting the reset button. This is when I tried reading the tape on the "first" system (bt controller) and eventually discovered that I had to do this from vt0 to see that the kernel was trapping to the debugger. On the second machine (ah controller) I just get SCSI bus lockups, but no debugger traps (and when this happens I can't use the vulcan death grip to get in to the debugger). H To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message