Date: Tue, 3 Feb 1998 06:38:57 -0600 From: Doug Ledford <dledford@dialnet.net> To: aw@ind.rwth-aachen.de Cc: AIC7xxx@FreeBSD.ORG Subject: Re[2]: Problems with AHA2940UW and external RAID Message-ID: <199802031238.GAA21171@dledford.dialnet.net> In-Reply-To: <199802031225.NAA02153@krios.ind.rwth-aachen.de>
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> I disabled both Wide and Synchronous negotiation on the RAID drive (ID
> 1) in the Adaptec's BIOS but this was not the solution. The same
> problems occur.
>
> If I use DOS, I can communicate with the RAID-System, therefore this
> seems to be a real problem of the Linux SCSI-driver and not of the
> RAID drive or the controller. Also, I can use low-level format and
> verify of the Adaptec's BIOS
At this point we are down to only a few possibilities left. We've
disabled sync and wide negotiation, so that isn't it, we aren't using
tagged queueing yet so that isn't it, and the only things that should
have taken place with that device on the bus are a TEST_UNIT_READY
command and that's it. The command it hangs on is the INQUIRY command.
We're kinda down to only a few things left. That device simply doesn't
like some timing issue in the sequencer, it doesn't like our INQUIRY
command from the mid level SCSI code, or possibly it has something to do
with the Disconnect priviledge. The first two are the hardest ones to
change, so let's try going into the Adaptec SCSI BIOS again and this time
switch the disconnection enabled to disconnection disabled (or vice-versa
depending on what it currently is) and see if that makes a difference.
------------------------------------
Doug Ledford <dledford@dialnet.net>
"Opinions expressed are my own, but
they should be everybody's."
Me
-----------------------------------
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