About AIX System Dump

ITEM: RS4000016659

**************> QUESTION level 1 --> level 2 SPECIALIST <**************         
My customer experienced system-abend with flashing 888.                         
At the time, his result of 'errpt -a' displays 'sysem dump = 0 byte'.           
In his environment, /var/adm/ras/errlog and /dev/hd7(primary dump               
device) are on the same pv, and /dev/hd7 is enough to make system dump.         
So he can't understand why he couldn't get any dump.                            
Q. In what case do we experience such a dump-failure?                           
... I must say he didn't write down the dump code(888-102-mmm-ddd)           
when it happened. Sorry for this lack of information.                           
                                                                                
Thanks a lot in advance.                                                        
************** ANSWER   level 2 -- level 1 SPECIALIST **************         
==== THIS TEXT HAS BEEN ENTERED BY IBM IN USA                                  
==== ASGN: AUSVV    AT WTSCPOK  ======================== DATE:951226           
TIME:1035                                                                      
Received by Austin ITSC and assigned to AIXOPSYS.                               
                                                                                
Your question has been received, please wait for a reply.                       
************** ANSWER   level 2 -- level 1 SPECIALIST **************         
==== THIS TEXT HAS BEEN ENTERED BY IBM IN USA                                  
==== RESP: AIXOPSYS AT WTSCPOK  ======================== DATE:951226           
TIME:1438                                                                       
Your item has been received.                                                    
************** ANSWER   level 2 -- level 1 SPECIALIST **************         
==== THIS TEXT HAS BEEN ENTERED BY IBM IN USA                                  
==== RESP: AIXOPSYS AT WTSCPOK  ======================== DATE:951228           
TIME:1623                                                                       
Response:                                                                       
                                                                                
ACTION:                                                                        
                                                                                
Generally when a system crashes with Flashing 888's, the following              
led codes indicate the type of dump taken and weather or not it                 
was complete.  In your example, 888-102-mmm-ddd:                                
                                                                                
    the 888 typically indicates that a dump was taken to the                    
         primary dump device                                                    
                                                                                
    the 102 shows that an interrupt occurred                                    
    the mmm is the type of dump (ie. 300=DSI,700=Program Interrupt,             
         etc)                                                                   
                                                                                
                                                                                
                                                                                
    the ddd is the status of the dump (ie. 0c4=partial,                        
         0c0=complete, etc)                                                     
                                                                                
There is an informational FAX for dumps that can be found through               
1-800-IBM-4-FAX regarding AIX System Dumps, including examples                  
of what the output should look like (the Document Number is 1770).              
                                                                                
Reason why dumps occur vary, and can be caused by a variety of reasons.         
Basically a dump analysis helps determine the nature of the crash               
so it can be prevented in the future.  Your customer may wish to                
glance through the FAX to determine whether or not he received a                
complete dump, and if necessary have it analyzed.                               
                                                                                
    THANK YOU FOR USING AIX SUPPORTLINE.  HAVE A NICE DAY¢¢                     
                                                                                
                                                                               



WWQA: ITEM: RS4000016659 ITEM: RS4000016659

Dated: 12/1995 Category: AIX6000

This HTML file was generated 99/06/24~12:43:06

Comments or suggestions?
Contact us