From owner-freebsd-questions@FreeBSD.ORG Tue Jun 21 16:55:53 2005 Return-Path: X-Original-To: freebsd-questions@freebsd.org Delivered-To: freebsd-questions@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id BBD1216A41C for ; Tue, 21 Jun 2005 16:55:53 +0000 (GMT) (envelope-from xfb52@dial.pipex.com) Received: from smtp-out5.blueyonder.co.uk (smtp-out5.blueyonder.co.uk [195.188.213.8]) by mx1.FreeBSD.org (Postfix) with ESMTP id 5C2A343D5C for ; Tue, 21 Jun 2005 16:55:52 +0000 (GMT) (envelope-from xfb52@dial.pipex.com) Received: from [82.41.37.55] ([82.41.37.55]) by smtp-out5.blueyonder.co.uk with Microsoft SMTPSVC(5.0.2195.6713); Tue, 21 Jun 2005 17:56:33 +0100 Message-ID: <42B84697.10308@dial.pipex.com> Date: Tue, 21 Jun 2005 17:55:51 +0100 From: Alex Zbyslaw User-Agent: Mozilla/5.0 (X11; U; FreeBSD i386; en-GB; rv:1.7.8) Gecko/20050530 X-Accept-Language: en, en-us, pl MIME-Version: 1.0 To: Jerry McAllister References: <200506211409.j5LE9fvW010384@clunix.cl.msu.edu> In-Reply-To: <200506211409.j5LE9fvW010384@clunix.cl.msu.edu> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-OriginalArrivalTime: 21 Jun 2005 16:56:33.0123 (UTC) FILETIME=[2D81BB30:01C57682] Cc: freebsd-questions@freebsd.org Subject: Re: DDS Tape problems X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 21 Jun 2005 16:55:53 -0000 Jerry McAllister wrote: >>Windows drivers could easily be doing something clever to compensate for >>some known (to Microsoft at least) problem with the specific tape >>drive. Being Windows it wouldn't bother to tell you. >> >> > >That is probably true. I just wish someone could find out what that[those] >trick[s] is[are] and apply them in FreeBSD - someone who knows more about >SCSI tape drivers than I. > > That's not me I'm afraid :-( Have you found any references to the kind of problems you've had for related OSes like Open/NetBSD or even Linux? If someone had fixed such a problem for another open source OS, then someone could examine the source code to see if there are any obvious tricks going on. I know, for example, that the drivers for one of my ethernet cards were patched to work better based at least in part on some Linux drivers. Alternatively, have you ever had the opportunity to test a tape drive which failed under FreeBSD under another BSD or Linux? Or on an alternate SCSI controller under FreeBSD? I would guess that the scsi or hackers lists might be better places to find people who might know, but you've probably tried them already. --Alex