This user group is amazing !
Thanks to people for quickly responding to my question. All the responses
were goods and my problem is solved now.
Special thanks to :
Craig I. Hagan" <hagan_at_ttgi.com>
Benoit Maillard maillard_at_fgt.dec.com
Drew Kramer <drew_at_ny.ox.com>
jpl_at_sonda.cl (Jorge A. Pizarro L.)
Jon Buchanan <Jonathan.Buchanan_at_ska.com>
SXRGS <sxrgs_at_orca.alaska.edu>
Helgi Viggosson <helgi_at_ott.is>
The answers are appended to the end of this mail.
My original message was the following:
--------------- Beginning of my original message -------------------
Dears managers,
I have a very urgent problem to solve and need help from people who have
experience with DECsafe/ASE.
We are trying to share disks between an AS 2100-4/200 and a AS 2000-4/233.
Disks are located in a BA356. Each AlphaServer have a PZKSA differential
SCSI controleur. Our firmwares are all up to date.
The BA356 and one of the AlphaServer terminate the differential SCSI bus.
When we power on only one of the two AlphaServer it sees all the disques on the
SCSI bus 0 and the SCSI bus 1 (the differentiel shared bus).
We use '>>> sh dev' get get the list of the devices.
When we power on the two AlphaServer, no one of them sees the disques in the
BA356. We see only the disques on bus 0 (private bus).
We left all the terminators on the differentiel to single-ended converter in
the BA356.
I have call DEC people since this morning but I am still waiting for their answer.
Who have an idea of the origin of our problem ? We really need help !
------------------- End of my original message ------------------------------
SUMMARY:
--------
The solution to my problem was to use differents SCSI number for my PZKSA
controler.
By default, each controler has the SCSI number 7. This make a conflict on the
SCSI bus.
I left the SCSI number 7 on one of the AlphaServer and changed the SCSI number
to 0 on the other AlphaServer as following.
>>> sh pkb*
pkb0_host_id 7
>>> set pkb0_host_id 0
>>> init
>>> sh dev =====> OK !!!
***
Christophe DIARRA
Institut de Physique Nucleaire
I.P.N ORSAY
91406 FRANCE
Tel: (33 16) 69 41 65 60
E-mail: diarra_at_ipnsun5.in2p3.fr
***
The answer I got are the following:
----- Begin Included Message -----
>From hagan_at_cih.com Tue Mar 5 15:30:16 1996
X-Sender: hagan_at_lego.psa.com
To: Christophe Diarra <diarra_at_ipnsun5.in2p3.fr>
Subject: Re: DECsafe ASE: problems
Mime-Version: 1.0
Content-Type: TEXT/PLAIN; charset=US-ASCII
Content-Length: 249
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it sounds like the two alpha's have the same scsi id
and are conflicting with eachotehr on the external storage
array box. is there any way that you can connect them
to either different connectors on the array (i'm not familiar with it)?
-- craig
----- End Included Message -----
----- Begin Included Message -----
>From maillard_at_atyisa.enet.dec.com Tue Mar 5 15:31:29 1996
To: diarra_at_ipnsun5.in2p3.fr
Cc: maillard_at_atyisa.ENET.dec.com
Subject: RE: DECsafe ASE: problems
Content-Length: 108
X-Lines: 6
What are the scsi IDs of the two KZPSA ?
(use >>> sho pka*)
Regards,
Benoit Maillard
maillard_at_fgt.dec.com
----- End Included Message -----
----- Begin Included Message -----
>From drew_at_ny.ox.com Tue Mar 5 15:43:49 1996
To: diarra_at_ipnsun5.in2p3.fr (Christophe Diarra)
Subject: Re: DECsafe ASE: problems
X-Mts: smtp
Content-Length: 231
X-Lines: 5
Offhand, I would say you need to change the SCSI address of one of the two
systems. Normally this is 7, but you probably need to change one of them to 6.
Consult your hardware manual for the specifics. Hope this helps.
-drew
----- End Included Message -----
----- Begin Included Message -----
>From jpl_at_sonda.cl Tue Mar 5 15:44:05 1996
X-Sender: jpl_at_sonda.cl
X-Mailer: Windows Eudora Version 1.4.4
Mime-Version: 1.0
Content-Type: text/plain; charset="us-ascii"
To: diarra_at_ipnsun5.in2p3.fr (Christophe Diarra)
Subject: Re: DECsafe ASE: problems
Content-Length: 545
X-Lines: 26
Hi Christophe:
>We left all the terminators on the differentiel to single-ended converter in
>the BA356.
Did you left out the terminators on KZPSA controllers?
Did you set a different SCSI bus ID for KZPSA ?? i.e.: set pk?0_host_id 6
Regards
Jorge Pizarro
Sonda S.A. e-mail: ja_pizarro_at_sonda.cl
574 Teatinos Phone : 562.671.6822 Ext. 2298
Santiago - Chile Fax : 562.671.4666
----- End Included Message -----
----- Begin Included Message -----
>From a628115_at_provolone.dszrh.ska.com Tue Mar 5 16:38:27 1996
To: diarra_at_ipnsun5.in2p3.fr (Christophe Diarra)
Cc: a628115_at_provolone.dszrh.ska.com
Subject: Re: DECsafe ASE: problems
Content-Length: 1009
X-Lines: 28
Hello Christophe,
Did your system work before and has suddenly stopped, or has there been
some re-configuration work?
Things to check are the following:
- One of the SCSI controllers on the shared bus must have SCSI address
6, the other SCSI address 7. If you happen to have just upgraded the
TurboChannel firmware then the SCSI address will have been reset to
the default of 7.
- Check those terminators! I don't think you should have any internal
terminators.
- Check cable length: max 3m for fast SCSI, 6m for slow. Again, if
you just upgraded the controller then you may find it's gone to
Slow SCSI. Obviously, you need to have the same speed at both ends
of the shared bus.
On the other hand, if it was working before and it's suddenly stopped
then check connections carefully, also look for bent pins in the
connectors. if they're OK then start suspecting whether your SCSI
controller is faulty...
Regards,
Jon Buchanan, Zuerich, Switzerland
[ Jonathan.Buchanan_at_ska.com ]
----- End Included Message -----
----- Begin Included Message -----
>From sxrgs_at_orca.alaska.edu Tue Mar 5 17:20:32 1996
Mr-Received: by mta ORCA.MUAS; Relayed; Tue, 05 Mar 1996 07:17:22 -0900
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Subject: RE: ASE problems
To: diarra_at_ipnsun5.in2p3.fr
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I'm not sure I understand how you have things configure *and* I am not
running ASE myself as yet; that said - from my reading on ASE configs they
are very particular as to cabling/termination etc. One thing I am sure of is
that the KZPSA's have to be externally terminated, i.e., you must remove the
internal terminators from the KZPSA and BA35x shelf DWZZA converter. See
page B6-7 in the
KZPSA owner's guide.
There are a list of other considerations you need to take into account to
get this working which I got from a DECUS session; it appears ASE
configurations are very sensitive.... Let me know if you'd like me to try
and dig it up...
good luck
Gordon Schumacher
University of ALaska
>Reply-To: diarra_at_IPNSUN5.IN2P3.FR
>
>Dears managers,
>
>I have a very urgent problem to solve and need help from people who have
>experience with DECsafe/ASE.
>
>We are trying to share disks between an AS 2100-4/200 and a AS 2000-4/233.
>Disks are located in a BA356. Each AlphaServer have a PZKSA differential
>SCSI controleur. Our firmwares are all up to date.
>
>The BA356 and one of the AlphaServer terminate the differential SCSI bus.
>
>When we power on only one of the two AlphaServer it sees all the disques on
the
>SCSI bus 0 and the SCSI bus 1 (the differentiel shared bus).
>We use '>>> sh dev' get get the list of the devices.
>
>When we power on the two AlphaServer, no one of them sees the disques in
the
>BA356. We see only the disques on bus 0 (private bus).
>
>
>We left all the terminators on the differentiel to single-ended converter
in
>the BA356.
>
>
>I have call DEC people since this morning but I am still waiting for their
answer.
>
>Who have an idea of the origin of our problem ? We really need help !
>
>
>Thanks in advance.
>
>
>***
>Christophe DIARRA
>Institut de Physique Nucleaire
>I.P.N ORSAY
>91406 FRANCE
>Tel: (33 16) 69 41 65 60
>E-mail: diarra_at_ipnsun5.in2p3.fr
>***
>
----- End Included Message -----
----- Begin Included Message -----
>From helgi_at_ott.is Tue Mar 5 17:22:32 1996
To: diarra_at_ipnsun5.in2p3.fr (Christophe Diarra)
Subject: Re: DECsafe ASE: problems
X-Mailer: MAILworks 1.7
Encoding: 50 TEXT, 7 TEXT SIGNATURE
Content-Length: 2013
X-Lines: 58
Hi Christophe,
Did you set different id's on the two KZPSA controllers? If they have
the same id you'll experience the same problem you allready are.
Ensure that the two controllers on the shared SCSI bus have a
different id, e.g. 6 and 7 (set with >>> set pkX0_host_id # - X specifies
the KZPSA id which you can obtain with the show config command).
Regards,
Helgi.
> Dears managers,
>
> I have a very urgent problem to solve and need help from people who have
> experience with DECsafe/ASE.
>
> We are trying to share disks between an AS 2100-4/200 and a AS 2000-4/233.
> Disks are located in a BA356. Each AlphaServer have a PZKSA differential
> SCSI controleur. Our firmwares are all up to date.
>
> The BA356 and one of the AlphaServer terminate the differential SCSI bus.
>
> When we power on only one of the two AlphaServer it sees all the disques on the
> SCSI bus 0 and the SCSI bus 1 (the differentiel shared bus).
> We use '>>> sh dev' get get the list of the devices.
>
> When we power on the two AlphaServer, no one of them sees the disques in the
> BA356. We see only the disques on bus 0 (private bus).
>
>
> We left all the terminators on the differentiel to single-ended converter in
> the BA356.
>
>
> I have call DEC people since this morning but I am still waiting for their answer.
>
> Who have an idea of the origin of our problem ? We really need help !
>
>
> Thanks in advance.
>
>
> ***
> Christophe DIARRA
> Institut de Physique Nucleaire
> I.P.N ORSAY
> 91406 FRANCE
> Tel: (33 16) 69 41 65 60
> E-mail: diarra_at_ipnsun5.in2p3.fr
> ***
_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/
Helgi Viggosson, | Internet: helgi_at_ott.is
Software Product Mgr, | X.25 (PSI%): PSI%274011324040::HELGI
OTT Ltd, | X.400: G=Helgi S=Viggosson P=OTT A=ISHOLF C=IS
Skeifan 17, | Phone: +354 533 5050
108 Reykjavik,ICELAND | FAX: +354 533 5060
_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/
----- End Included Message -----
Received on Tue Mar 05 1996 - 19:17:02 NZDT