Quoting "Huegel, Thomas" <[EMAIL PROTECTED]>:       
       
> I am getting a brand new z890 next week and I'll be installing z/VM 5.2.      
>  
>        
> My question is, 'What do I need to take advantage of OSA-ICC for my       
> consoles?'.       
>        
> Does anyone have an example of the OSA deffination they can share?       
> What emulator do you use on the PC ?       
> Is there anything else I need to know? Any gotcha's?       
>        
> Thanks       
       
Congratulations on the new 890. Unfortunately, in my       
experience, the ICC is the weakest link in an otherwise good system.       
   
1) As was mentioned by Eric, you need to define the OSA in your       
IOCP as an OSC type CHPID and CNTLUNIT. I did not assign it to      
a particular LPAR.       
One thing I see Eric did not use was MODEL=X on the 3270     
IODEVICE statement. I was under the impression this was required     
but I guess I was wrong.     
Here are my defs:     
> OSA0ICC  CHPID   PATH=B0,PCHID=140,TYPE=OSC,   OSA AS ICC 3270         *      
>         
>                SHARED                          ACCESS ALL LPARS               
>         
> *                                                                             
>         
>    CNTLUNIT  CUNUMBR=B000,PATH=(B0),UNIT=OSC                                  
>         
> *                                                                             
>         
>    IODEVICE ADDRESS=(B000,24),CUNUMBR=B000,UNIT=3270,MODEL=X            
     
2) The z890 here was ordered by management, and the actual      
configuration was decided in a meeting between the IBM salesman     
and the director of the computer center. The salesman apparently     
explained to the director how great this OSA is, and it replaces      
the old 3174 control units, etc etc. So we got one.     
    
Note, I wrote "we got ONE". It seems that IBM recommends having     
2 such beasts, and I think I know why, but the deal was made for one.     
(The other port on the card was allocated to different use).  
We have been having situations where one or more (or ALL) of our     
ICC consoles go dead on us. Attempting to restart them fails, with no     
response from the IP of the OSA server. We have had an OSA card     
replaced, we have had microcode upgraded, we replaced CAT cable and   
the switch  ... nothing helps (last such occurrence was last Friday).    
    
These almost always happen when the HW system people are not     
around, such as weekends. <grrr>    
The only guaranteed-to-work solution to the problem has been    
to use the HMC to toggle the channel offline and online again    
and restart all the clients.    
    
I personally feel the situation to be intolerable, but my     
efforts to get management to escalate the issue with IBM have     
not been successful. The problem reports I have opened have been     
taken care of by sending the IBM hardware tech to collect     
diagnostics, but nothing he has done has helped.    
    
Ok, that was my gripe...    
    
3) We use the Powerterm emulator from Ericom, mostly because    
it is Israeli, has very complete support of Hebrew, and we already     
use their product elsewhere.   
  
I will be happy to show you my definitions, but I wont be   
in the office for several days. If you send me an email offlist,  
reminding me, I will try to send them some time next week.  
   
Shimon 
 
   

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