Date: Wed, 19 Jun 2002 15:55:41 +0200 (CEST) From: Soeren Schmidt <sos@freebsd.dk> To: Matthias Andree <matthias.andree@stud.uni-dortmund.de> Cc: Matthias Andree <matthias.andree@gmx.de>, freebsd-stable@freebsd.org Subject: Re: ATA tags bug fix committed to -releng4 Message-ID: <200206191355.g5JDtf0T051662@freebsd.dk> In-Reply-To: <20020619134133.GA12728@merlin.emma.line.org>
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It seems Matthias Andree wrote: > > Hmm, the IBM DJNA series is broken tags wise, it "forgets" an outstanding > > request from time to time. My AC29100D that is a clone of the DJNA > > doesn't work as well.. > > One should think that IBM is shipping firmware updates then... Nope, they do no firmware updates for ATA disks they told me... They have not implemented the download firmware command for that they say, however, they do have a util that, according to docs, can update the firmware on DTLA drives, so the answer may very well be that they wont disclose their proprietary interface for doing it :/ (if someone has drives to spare for hacking on that I'm all ears :) ) > Should I bother to bug WDC about a new firmware for the AC420400D or > will they tell me to get lost and buy a current drive? WDC newer got back to my (repeated) questions on tags at all, so I cant say. I'm also dissapointed in them not stating in their (miserable) docs if tags support is present or not.... > Can this condition "forgot a request" be detected and worked around > somehow? I've not found a way yet sadly, the problem is that it sometimes updates the media in random places during the amnesia period, leading to currupt data. However I havn't spent much time on it since IBM states them to be broken.... > > However I seem to be able to make tags work on the older IBM DTTA > > series of drives, according to IBM tags should work if transfers > > are kept under 64k... > > Hum. I presume it would not help my 486 with an UMC chip set... (which > uses "BIOSPIO", not some DMA mode) No, you need DMA for tags to work... -Søren To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message
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