Date: Wed, 1 Mar 2000 01:06:29 -0500 (EST) From: "Matthew N. Dodd" <winter@jurai.net> To: Mike Smith <msmith@FreeBSD.ORG> Cc: scsi@FreeBSD.ORG Subject: Re: chio trap with not-ready changer Message-ID: <Pine.BSF.4.21.0003010103071.455-100000@sasami.jurai.net> In-Reply-To: <200003010502.VAA02846@mass.cdrom.com>
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On Tue, 29 Feb 2000, Mike Smith wrote: > Ok, after some interesting side trips I'm happily up and talking to > our new (well, new-old) SpectraLogic STL-8000. There's only one catch > so far - if the unit is still initialising itself when the 'ch' driver > tries to talk to it, the latter fails in a messy fashion. It's easy > enough to work around this by increasing the SCSI delay, but if you > have 40 tapes in the unit and it's busy reading the barcodes off them > all, this can be a loooong wait. 8) I think this is an artifact of the changer hardware being really stupid. I've got 2 different HP robots and a StorageWorks datawheel 8mm that I have to let settle before I bring up the box they are attached to. While the robot is doing self-test, calibration and inventory its -not- doing the right thing WRT being a SCSI device. Of course the degree of brokenness varies b/t the 3 different devices... I think your observed behavior is about par. :) See if you can frob your changer into not doing a media inventory on bus reset. That helps a bit here IIRC. -- | Matthew N. Dodd | '78 Datsun 280Z | '75 Volvo 164E | FreeBSD/NetBSD | | winter@jurai.net | 2 x '84 Volvo 245DL | ix86,sparc,pmax | | http://www.jurai.net/~winter | This Space For Rent | ISO8802.5 4ever | To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-scsi" in the body of the message
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