Thewall and MAX MBUFS

ITEM: RS4000014526



**************> QUESTION level 1 --> level 2 SPECIALIST <**************         
Question:                                                                       
Environment AIX 4.1.4                                                           
            Communications Server for AIX 4.1                                   
no -a gives thewall=6140                                                        
Looking in SMIT/System Environments/Change / Show Characteristics of            
Operating System we have:                                                       
Maximum Kbytes of real memory allowed for MBUFS = 4096                          
                                                                                
Shouldn't these 2 parameters be the same? It was in AIX 3.2 with                
SNA SERVER 2.1                                                                  
Could you please explain this mismatch?                                         
Thanks in advance, best regards, Marina.                                        
************** ANSWER   level 2 -- level 1 SPECIALIST **************         
==== THIS TEXT HAS BEEN ENTERED BY IBM IN USA                                 
PMR 00038,998,758 was created on 97/01/09 at 15:28:14.                          
************** ANSWER   level 2 -- level 1 SPECIALIST **************         
==== THIS TEXT HAS BEEN ENTERED BY IBM IN USA                                  
==== RESP: NHL      AT WTSCPOK  ================= DATE:970109                  
TIME:1141                                                                       
                                                                                
We have received your question and assigned it to a specialist.  We             
will respond as soon as possible.                                               
************** ANSWER   level 2 -- level 1 SPECIALIST **************         
==== THIS TEXT HAS BEEN ENTERED BY IBM IN USA                                  
==== ASGN: NHL      AT WTSCPOK  ================= DATE:970109                  
TIME:1142                                                                       
The question has been re-assigned to SADTLER.                                   
************** ANSWER   level 2 -- level 1 SPECIALIST **************         
==== THIS TEXT HAS BEEN ENTERED BY IBM IN USA                                 
==== RESP: SADTLER  AT WTSCPOK  ================= DATE:970110                  
TIME:1203                                                                       
                                                                                
 This is more of an AIX BOS question than a SNA question, AIX                   
 BOS 'owns' mbufs, SNA is just a 'user' of mbufs, like tcp/ip.                  
                                                                                
 The 'no' command is supposed to be for the currently running                   
 system, the 'smit chgsys' or the 'chdev -l sys0 -a maxmbuf=XXX'                
 is supposed to be  the values used after the next reboot.                      
 They can  have different values, depending on the order of                     
 when the two commands where run.  If they don't have                           
 the same value after a reboot then something is wrong.                         
                                                                                
 If you find that after a reboot these values still do not                      
 match, then you are probably looking at a code defect.                        
 Please report this using your code defect procedures.                          
                                                                                
                                                                                
                                                                                
                                                                                
                                                                                
                                                                                
                                                                                
                                                                                
                                                                                
                                                                                
                                                                                
                                                                                
                                                                                
                                                                               


WWQA: ITEM: RS4000014526 ITEM: RS4000014526
Dated: 01/1997 Category: AIXCOMMS
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