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Date:      Sat, 14 Feb 1998 10:54:23 +0100
From:      "Lars Köller" <lkoeller@cc.FH-Lippe.DE>
To:        David Kelly <dkelly@hiwaay.net>
Cc:        scsi@FreeBSD.ORG
Subject:   Re: SCB and 2940 Problems (with Seagate Python DAT)!
Message-ID:  <34E569CE.E40C1307@cc.FH-Lippe.DE>
References:  <199802140450.WAA14852@nospam.hiwaay.net>

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David Kelly wrote:
> 
> Lars Koeller writes:
> > In reply to Greg Lehey who wrote:
> >
> >  > On Thu, 12 February 1998 at 13:31:55 +0100, Lars Koeller wrote:
> >
> >  > > Yesterday they send me a firmware upgrade to 5ACB (before 5.AC). It
> >  > > could be downloaded to the DAT with a DOS bootdisk and an Adaptec
> >  > > ASPI driver. After the upgrade all problems are gone away. No longer
> >  > > a SCB timeout or anything else!
> >  > >
> >  > > The upgrade can be found on
> >  > >
> >  > >     ftp://ftp.Uni-Bielefeld.DE/pub/systems/FreeBSD/lkoeller/5acb.exe
> >  > >
> >  > > It's a self extracting file DOS executable which contains a README,
> >  > > the firmware and the download utility for DOS.
> >  >
> >  > Which devices does this apply to?
> >
> > It seems so that the firmware is valid for all Seagate Python DAT
> > drives, but I'm not totally sure.
> >
> > Mine is recognized as a
> >
> >     ARCHIVE Python 28388-XXX 5.AC
> >
> > and is a DDS2 DAT drive, but Andrew Heybey <ath@bellcore.com>
> > received the same firmware (same name of the exe-file) for a
> >
> >     ARCHIVE Python 25501-XXX 5.45
> 
> Darn it! Seagate is having a version contest with Exabyte! :-)
> 
> I have:
> 
> (ahc0:4:0): "ARCHIVE Python 28388-XXX 4.CM" type 1 removable SCSI 2
> (ahc0:5:0): "ARCHIVE Python 25601-XXX 2.75" type 1 removable SCSI 2
> (ahc0:6:0): "ARCHIVE ANCDA 2750 28077 -003" type 1 removable SCSI 2
> 
> and I think I have one of the ARCHIVE Python 25501-XXX 5.45's too, but
> its turned off and 12 miles away.
> 
> All of the above have been quite reliable. Just what again does this
> new firmware fix? Does Seagate have a firmware site or is this
> something you have to call and beg for?

This firmware fixes the problem of SCB (SCSI Command Buffer, Tagged
Command Queueing Mode) timeout when doing a backup with dump or tar.
I receive this Upgrade from Seagate after mailing the problem to
tapesupport@seagate.com (hope I remember right).

> Am getting a bit skittish as maybe this weekend my narrow devices are
> coming off the Adaptec and going on the Asus SC875 to free the 2940 for
> another system.
> 
> --
> David Kelly N4HHE, dkelly@nospam.hiwaay.net
> =====================================================================
> The human mind ordinarily operates at only ten percent of its
> capacity -- the rest is overhead for the operating system.
> 
> To Unsubscribe: send mail to majordomo@FreeBSD.org
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-- 
E-Mail:                                    |  Lars Koeller
 Lars.Koeller@Uni-Bielefeld.DE              |  UNIX Sysadmin
 lkoeller@cc.FH-Lippe.DE (private)           |  Computing Center
PGP-key:                                      |  University of Bielefeld
 http://www.nic.surfnet.nl/pgp/pks-toplev.html |   Germany
---------- FreeBSD, what else? ------- http://www.freebsd.org ----------


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