Re: Model 270 anomalies - PLS comment ! -- MIDRANGE-L

Thanks, Charly, for your comment.
I always try to convince my customers to get
a twinax console whenever it's possible.
Twinax is always working, when everything else
is going wrong ... :-)

BTW, IBM is sending out an SE on monday,
I will report back about my "success story".

Regards from germany, Philipp Rusch

Charly Jones schrieb:

> >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                                                         |
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> > > | Fax  : (+49) 6003 3795                                          |
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