From owner-freebsd-current Thu Dec 16 15:23:26 1999 Delivered-To: freebsd-current@freebsd.org Received: from relativity.student.utwente.nl (wit389306.student.utwente.nl [130.89.234.166]) by hub.freebsd.org (Postfix) with ESMTP id 28B1814A07 for ; Thu, 16 Dec 1999 15:23:23 -0800 (PST) (envelope-from djb@Wit389306.student.utwente.nl) Received: by relativity.student.utwente.nl (Postfix, from userid 1001) id 6F1171E26; Fri, 17 Dec 1999 00:23:32 +0100 (CET) Date: Fri, 17 Dec 1999 00:23:32 +0100 From: "Dave J. Boers" To: "Richard Seaman, Jr." Cc: Soren Schmidt , freebsd-current@FreeBSD.ORG Subject: Re: ATA driver problem?? (lost disk contact) Message-ID: <19991217002332.A10820@relativity.student.utwente.nl> Reply-To: djb@relativity.student.utwente.nl References: <19991216091950.B8469@relativity.student.utwente.nl> <199912160825.JAA71207@freebsd.dk> <19991216165055.A320@tar.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Mailer: Mutt 1.0pre2i In-Reply-To: <19991216165055.A320@tar.com> Sender: owner-freebsd-current@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG On Thu, Dec 16, 1999 at 04:50:55PM -0600, Richard Seaman, Jr. wrote: > Check http://www.storage.ibm.com/techsup/hddtech/prodspec/djna_spw.pdf > If a command is received during spin down of ADM, the drive quits the spin down > and tries to complete the command as soon as possible. > In case the spin down of ADM is disturbed by a command, it is retried 12 hours > later. That sure sounds like my 12 hours. I guess this more or solves the mystery. There is still one thing which keeps me wondering, though. How exactly does the ata driver react to the drive doing ADM? Whenever I hear it spinning down, I immediately hear it spinning up again. Does this mean that the ATA driver won't allow the drive to do _any_ ADM at all? Is that a bad thing? Regards, Dave Boers -- God, root, what's the difference? djb@relativity.student.utwente.nl To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message