From owner-freebsd-alpha  Wed Mar 29  8:44:19 2000
Delivered-To: freebsd-alpha@freebsd.org
Received: from feral.com (feral.com [192.67.166.1])
	by hub.freebsd.org (Postfix) with ESMTP
	id BB69337C0D1; Wed, 29 Mar 2000 08:44:16 -0800 (PST)
	(envelope-from mjacob@feral.com)
Received: from beppo.feral.com (beppo [192.67.166.79])
	by feral.com (8.9.3/8.9.3) with ESMTP id IAA11160;
	Wed, 29 Mar 2000 08:43:48 -0800
Date: Wed, 29 Mar 2000 08:44:04 -0800 (PST)
From: Matthew Jacob <mjacob@feral.com>
Reply-To: mjacob@feral.com
To: Andrew Gallatin <gallatin@cs.duke.edu>
Cc: picapau@minmei.iqm.unicamp.br, alpha@FreeBSD.ORG,
	scsi@FreeBSD.ORG
Subject: Re: SCSI disk problems on AS1000
In-Reply-To: <14562.4832.203053.753476@grasshopper.cs.duke.edu>
Message-ID: <Pine.BSF.4.10.10003290840560.25230-100000@beppo.feral.com>
MIME-Version: 1.0
Content-Type: TEXT/PLAIN; charset=US-ASCII
Sender: owner-freebsd-alpha@FreeBSD.ORG
Precedence: bulk
X-Loop: FreeBSD.org



> 
> Hmm.. Older DEC disks tend to not spin up when they're powered on.
> I'd assumed that the FreeBSD CAM system would take care of spinning up
> such disks.  Can a SCSI guru out there confirm this?  Bear in mind
> that he's using the ncr driver, so some bets are off...
> 

The cam_periph_error code does issue a START UNIT command, but only if
scsi_error_action returns an error_action for this, which is then contingent
upon what kind of error the disk returns. Frankly, this whole area of CAM is a
bit too labyrynthine to state unequivocally that a START UNIT would be sent
here. Sigh.





To Unsubscribe: send mail to majordomo@FreeBSD.org
with "unsubscribe freebsd-alpha" in the body of the message