Re: Model 270 anomalies - PLS comment !

>Nobody has a thought for this one?

My thoughts are that a LAN console is hard to configuree, hard to 
troubleshoot, and even IBM doesnt't know what to do when it doesn't work.
I continue to have very little trouble with
twinax consoles.

Not much help, but those are my thoughts.

>Is this LAN card in slots C06 or C05
>never meant to be anything else?

Yes. I believe that a LAN console requires a
dedicated LAN card for the exclusive use of
the LAN console.  Even if you only have seven
slots and they are precious to you...


Charly

---------------------------------------

For their next act, they'll no doubt be buying a firewall running under NT, 
which makes about as much sense as building a prison out of meringue.  -- 
Tanuki

Charly Jones
253 851-9876
Gig Harbor Washington

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>From: Philipp Rusch <Philipp.Rusch@rusch-edv.de>
>Reply-To: MIDRANGE-L@midrange.com
>To: MIDRANGE-L@midrange.com
>Subject: Re: Model 270 anomalies - PLS comment !
>Date: Thu, 09 Aug 2001 16:37:04 +0200
>
>Nobody has a thought for this one ?
>
>Philipp Rusch schrieb:
>
> > Hello all,
> >
> > we have a problem IBM is not really able to solve,
> > because hardware says its a lic-problem and could only be
> > solved by software techs, and software says its a hardware-
> > related problem :-(  ...
> > I searched IBM PTF site and did not find a thing.
> > Sorry for the long post, but it is a rather subtile problem ...
> >
> > Ok, here's the situation:
> >
> > Model 270 - no extension box, but all slots filled up with
> > cards like they were placed and ordered through IBM configurator.
> > Console was ordered to be Operations Console through direct PC-
> > connection, that is the first V.24 Controller in the system.
> > LAN connections ordered are Token Ring (TR = 2744), Ethernet
> > 100 MBit (ETH100 = 2838) and Ethernet 1 Gigabit (ETH1G = 2760).
> > The slots were filled up as follows:
> >
> > --- Top ---
> > C07 = 2771 (I/O controller ECS modem and V.24 line to PC)
> > C06 = 2838 ETH100
> > C05 = 2749 SCSI external tape controller (not of interest here)
> > C04 = 2842 PCI controller to handle slots C03 & C02
> > C03 = 2744 TR 16 MBit
> > C02 = 2760 ETH1G
> > C01 = 27xx RAID 5 Harddisk controller
> > -- Bottom ---
> >
> > If you want to use the LAN console thing as well as the directly
> > connected PC console, the slots C06 or (alternatively) C05 is
> > associated with this console definition and cannot be used
> > otherwise (no normal AS/400 connections through TCP/IP and so on).
> > This is defined and activated (or DE-activated) through DST.
> >
> > Now comes the problem: the machine came preloaded with V5R1 and
> > seemed to have both LAN and V.24 console activated.
> > We used V.24 console cable to power up and further install
> > the machine. When it came to LAN config, TR and ETH1G controller
> > came up well, but the ETH100 said there is another device des-
> > cription of type " "  (blank) occupying that hardware resource.
> > OK, this meant to manually IPL and go to DST, where I DE-activated
> > LAN console and expicitly selected direct console afterwards to
> > be sure to have a valid console config.
> > Now every second IPL failed with the resource of slot C06 being
> > occupied by DST - the LAN console went active again !
> > I went to HW-service manager in DST and this 2838 showed
> > operational - no suprise - but when displaying associated
> > resources with this slot it was the 2771 AND the 2838 being
> > found for that resource - strange.
> > I instantly thought that HW service manager made a mess of this cards
> > record and thought of completly deleting everything defined for this
> > card by removing it from the system and power up again without it.
> > To make it short: this time everything seemed well, I deleted every-
> > thing in DST and on OS/400 DEVD which was associated with this resource
> > and started from new. Everything came up fine - until the first IPL
> > we did after every LAN line went active...
> > To my surprise the old LAN console defintion in DST was still there
> > (IP adress and mask and so on) , where does this stick to ???
> >
> > I then changed positions of the cards to keep away from slot C06
> > (the first one for the LAN console), so I took C05 to C06 and put
> > the 2838 in slot C05. This time after IPL slot C05 showed up in DST
> > as being an "occupied slot" but no feature was recognized !
> > Was the 2838 defective ?
> > OK- I took another 2838 from a 720 machine and did the same procedure
> > again - same result.  BTW the other (suspectible) 2838 is working in
> > the 720 since then without any problem.
> >
> > I was feeling rather helpless now, but I went on: lets take the 2744
> > (TR) from slot C03 and put it in slot C06 and place the tape controller
> > in its old position in C05 again. There is something new to the model
> > 270 and the 820's: you have an upper limit of "speed points" which sum
> > up for the PCI controller which controls the bus they are in. So I
> > thought it would be a good idea to place the low speed LAN feature (TR)
> > in slot C06 instead of the high speed (100MBit).
> > Same game: everything came up fine: I had three LAN lines now up and
> > running ! Until - you guess it : the next IPL took away the TR line.
> > Thats were we are right now: TR access is routed through another machine
> > on the ethernet which is going away soon, so we need that line.
> >
> > Is this a lic problem ? Is our machine "too full" with cards ?
> > Is this LAN card in slots C06 or C05 never meant to be anything else
> > than a LAN console ? Shall we go to an expansion tower with more busses
> > simply for one ontroller card ???
> > We are on V5R1 CumPTF  C1163510 - the newest avalaible.
> >
> > Thanks for any input and sorry for the long post again.
> >
> > Regards from germany, Philipp Rusch
> >
> >  -----------------------------------------------------------------
> > | EDV Beratung Rusch          EDP Consulting Rusch                |
> > | Philipp Rusch               Mailto: Philipp.Rusch@rusch-edv.de  |
> > | Am Errlich 9                WWW   : http://www.rusch-edv.de/    |
> > | D-61191 Rosbach,                                                |
> > | Germany                                                         |
> > | Phone: (+49) 6003 3972      Mobile : (+49) 172 89 86 230        |
> > | Fax  : (+49) 6003 3795                                          |
> > |                                                                 |
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