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Date:      Fri, 21 Sep 2001 18:48:45 -0500
From:      David Kelly <dkelly@hiwaay.net>
To:        "Karel J. Bosschaart" <karelj@wop21.wop.wtb.tue.nl>
Cc:        questions@FreeBSD.ORG
Subject:   Re: first CD burner fails while starting second (cdrecord)
Message-ID:  <20010921184845.C73788@grumpy.dyndns.org>
In-Reply-To: <20010922004223.B57674@wop21.wop.wtb.tue.nl>; from karelj@wop21.wop.wtb.tue.nl on Sat, Sep 22, 2001 at 12:42:23AM %2B0200
References:  <karelj@wop21.wop.wtb.tue.nl> <200109200227.f8K2RBG59500@grumpy.dyndns.org> <20010920135134.A29683@wop21.wop.wtb.tue.nl> <20010920123110.B63111@grumpy.dyndns.org> <20010922004223.B57674@wop21.wop.wtb.tue.nl>

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On Sat, Sep 22, 2001 at 12:42:23AM +0200, Karel J. Bosschaart wrote:
> On Thu, Sep 20, 2001 at 12:31:10PM -0500, David Kelly wrote:
> > Am thinking something similar may be happening with your two different
> > CD-RW drives. When one starts it doesn't free the SCSI bus for a long
> > time when starting. Causes the other to starve for data. Might watch the
> > flashing LED's on the CD-RW drives and the HD (HD on same cable,
> > right?).
> >
> No, the SCSI controller only has the two CD burners, the HD is on
> a separate controller.
> 
> > If my suspicion is right there isn't anything you can do about it other
> > than replace one of the CD-RW drives (I'd like to know which is the
> > problem so to avoid that brand in the future) or place the offending
> > drive on a SCSI controller all to itself.
> >
> The Plextor PX-W4220T fails when the HP CD-Writer+ 9200 is started to burn
> a CD. SCSI controller is a NCR810, if that matters (sym driver). 

Drat! I too have an HP 9200.

IMO you will either have to replace the HP 9200 or add another SCSI card
so each is on a separate interface. Its not a FreeBSD issue but a
firmware issue in your hardware.

Else you will have to make sure you start the 9200 first.

-- 
David Kelly N4HHE, dkelly@hiwaay.net
=====================================================================
The human mind ordinarily operates at only ten percent of its
capacity -- the rest is overhead for the operating system.

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