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MA43733 - LIC-OTHER-D/T576B-PERFM AFTER APPLYING MF99008

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 APAR (Authorized Program Analysis Report)

Abstract

LIC-OTHER-D/T576B-PERFM AFTER APPLYING MF99008

Error Description

Any systems with a CCIN 576B fibre channel IOA will encounter  
performance problems if MF99008 is applied. Response times per  
IO are approximately 10ms regardless of the size of the IO.    
This applies to both tape and DASD for both reads and writes.  
This will affect saves, restores and any other IO performed to  
devices attached to the 576B adapter.                          

Problem Summary

****************************************************************
* PROBLEM: (MA43733) Licensed Program = 5770999 for i 7.1 and  *
*                                       i 7.2                  *
*           Severe Performance Degradation                     *
****************************************************************
* USERS AFFECTED: All IBM i operating system users.            *
****************************************************************
* RECOMMENDATION: Apply LIC PTF MF58508 for i 7.1.             *
*                 Apply LIC PTF MF58509 for i.7.2.             *
****************************************************************
*                                                              
Any systems with a D/T576B fibre channel IOA will encounter    
performance problems if MF99008 is applied. Response times per  
IO are approximately 10ms regardless of the size of the IO. This
applies to both tape and DASD for both reads and writes. This  
will affect saves, restores and any other IO performed to      
devices attached to the 576B adapter.                          

Problem Conclusion

After applying this fix, performance degradation caused by this
problem will be resolved.                                      

Temporary Fix

                       *********                                
                       * HIPER *                                
                       *********                                

Comments

Circumvention


PTFs Available

R710 MF58508 PTF Cover Letter   4143
R720 MF58509 PTF Cover Letter   4276

Affected Modules

         
         

Affected Publications

Summary Information

Status............................................ CLOSED PER
HIPER........................................... Yes
Component.................................. 9400DG300
Failing Module.......................... RCHMGR
Reported Release................... R710
Duplicate Of..............................




System i Support

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Document Information

Modified date:
12 November 2014