IBM Support

MA47940 - LIC-DISK-OTHER-INCORROUT-DISK D/T2145 SOME DISKS SHOW UP AS DPH
VS DMP AFTER FLASHCOPY.

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 APAR (Authorized Program Analysis Report)

Abstract

LIC-DISK-OTHER-INCORROUT-DISK D/T2145 SOME DISKS SHOW UP AS DPH
VS DMP AFTER FLASHCOPY.

Error Description

Following an IASP flashcopy, the target disks resulted in some  
showing DMP* rersources and others with DPH*. The IASP vary    
ran DASD Checker for about six minutes before moving on. The    
vary on did complete and the IASP did become available.        
However when looking at the disk units, still                  
some were showing DPH*.                                        
                                                               
There is a very small timing window when the DPH being          
altered to DMP resources code is called, some resources may get
skipped.                                                        
                                                               
Circumvention: Prior to IASP vary on a user can check the disk  
resources to see if they are all showing DMP* accordingly. If  
any are still showing as DPH* they can perform an IO Adapter    
Reset or simply IPL the flashcopy target node and that should  
allow the remaining DPH* to be converted to DMP* appropriately.

Problem Summary

Please see the ERROR DESCRIPTION section.                      

Problem Conclusion

A race condition in the code was fixed that previously prevented
some drivers from updating from DPH to DMP.                    

Temporary Fix

Comments

Circumvention


PTFs Available

R720 MF66805  0114

R730 MF66798  0128

R740 MF66799  0121

Affected Modules


         
         

Affected Publications

Summary Information

Status............................................CLOSED PER
HIPER...........................................No
Component..................................9400DG300
Failing Module..........................RCHMGR
Reported Release...................R720
Duplicate Of..............................




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Document Information

Modified date:
15 May 2020

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