Date: Wed, 28 Jan 2009 16:34:51 -0600 From: David Kelly <dkelly@hiwaay.net> To: Jaime <jaime@snowmoon.com> Cc: Wojciech Puchar <wojtek@wojtek.tensor.gdynia.pl>, Dan Nelson <dnelson@allantgroup.com>, freebsd-questions@freebsd.org Subject: Re: Quantum tape drive Message-ID: <20090128223451.GA75178@Grumpy.DynDNS.org> In-Reply-To: <ae4324ed0901281406n17fb86a9q880e061a6da05f7c@mail.gmail.com> References: <ae4324ed0901281136v80fd634t1cbed1f73170c2ef@mail.gmail.com> <20090128202349.GD63837@dan.emsphone.com> <ae4324ed0901281238u4f1a1ddo400407115e6491f2@mail.gmail.com> <20090128225115.G25826@wojtek.tensor.gdynia.pl> <ae4324ed0901281406n17fb86a9q880e061a6da05f7c@mail.gmail.com>
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On Wed, Jan 28, 2009 at 05:06:55PM -0500, Jaime wrote: > On Wed, Jan 28, 2009 at 4:51 PM, Wojciech Puchar > > > > TERMINATION PROBLEM > > I was thinking of that... I shut down the server and checked the > usual suspects (terminator on the cable, SCSI IDs, etc.) but didn't > find anything out of place. Also, the same command in Knoppix (Linux) > using /dev/st0 (the Linux equivalent of /dev/sa0) appeared to write to > the tape and then list the items on that tape. I didn't see how long > it would take, though. In retrospect, maybe I should have let that > run longer. :( > > How certain are you that its a termination problem? I'm tending to "certainly" agree. There are other things to consider as well, such as narrow, wide, ultra, and ultra-LVDT. Active termination and passive termination. Is there termination at the SCSI card? You said there was termination on the cable, but is there also on-board termination on the drive? No other drive on the bus has termination enabled? One terminator on each end of the bus, no more, no less. -- David Kelly N4HHE, dkelly@HiWAAY.net ======================================================================== Whom computers would destroy, they must first drive mad.
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