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From: Wilko Bulte <wilko@yedi.iaf.nl>
Message-Id: <199709241855.UAA01561@yedi.iaf.nl>
Subject: Re: DPT Firmware Problem
To: Shimon@i-Connect.Net (Simon Shapiro)
Date: Wed, 24 Sep 1997 20:55:18 +0200 (MET DST)
Cc: freebsd-scsi@FreeBSD.ORG, freebsd-hackers@FreeBSD.ORG
In-Reply-To: <XFMail.970923155616.Shimon@i-Connect.Net> from "Simon Shapiro" at Sep 23, 97 03:56:16 pm
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As Simon Shapiro wrote...
> Again, apologies for the cross posting.
> 
> We have discovered a serious bug in the DPT firmware, Version 7L0.
> 
> It manifests itself in the following manner (at least):
> 
> *  On Single Ended controllers;  The ``Shelf Good'' signal reaches the DPT
>    from the disk bay, but the HBA equivalent (HBA Good) does not reach the
>    disk bay.  As a result, the fault light remains on, and the disk
>    cassettes will erratically display the fault light.
> 
> *  On differential controllers connected via Diff-SE adaptor;  A whole bus
>    will seem to have disappeared.  If you struggle with the cables, you MAY
>    see it for a while, but it will not survive a re-boot.
> 
> Solution:  Roll back to (ar stay at) the 7H firmware.  I have posted 7H3
>            firmware in ftp://sendero-ppp.i-connect.net/crash/476d07h3.fwi
>            There are no restrictions on downloading it.
> 
> We know of this problem with several StorageWorks disk bays, ours included.
> We have not tested it with other disk bays, and drives which are directly
> connected are NOT effected.

Simon,

Could you get me more info on the problems with the StorageWorks shelves?
I work in DEC Storage engineering and might be able to help you with this
problem. What shelves do you use? WHich disks? Revisions etc.

I assume things like the Shelve OK jumpers are set correctly?

Wilko
_     ____________________________________________________________________
 |   / o / /  _  Bulte  email: wilko@yedi.iaf.nl http://www.tcja.nl/~wilko
 |/|/ / / /( (_) Arnhem, The Netherlands - Do, or do not. There is no 'try'
----------------------------------------------------------------------Yoda