IBM Support

MA44846 - LIC-DISK UNABLE TO START DS8000 HYPERSWAP REPLICATION

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 APAR (Authorized Program Analysis Report)

Abstract

LIC-DISK UNABLE TO START DS8000 HYPERSWAP REPLICATION

Error Description

The problem applies to IBM i systems that have a DS8000        
HyperSwap configuration. User is unable to start Metro-Mirror  
replication using the CHGHYSSTS command. The CHGHYSSTS command  
fails withe a CPF9898 message in the job log with the following
text: "The HyperSwap operation failed due to an unknown reason.
The reason code is 4.". The problem may occur when Metro Mirror
replication is suspended due to a communication problem between
the primary and secondary DS8000 systems. In order to re-start  
Metro Mirror replication, the DS8000 system administrator must  
restore the PPRC paths using DS8000 interfaces.                

Problem Summary

The problem applies to IBM i systems that have a DS8000        
HyperSwap configuration. User is unable to start Metro-Mirror  
replication using the CHGHYSSTS command. The CHGHYSSTS command  
fails withe a CPF9898 message in the job log with the following
text: "The HyperSwap operation failed due to an unknown reason.
The reason code is 4.". The problem may occur when Metro Mirror
replication is suspended due to a communication problem between
the primary and secondary DS8000 systems. In order to re-start  
Metro Mirror replication, the DS8000 system administrator must  
restore the PPRC paths using DS8000 interfaces.                

Problem Conclusion

A PTF will be created to correct the problem. After the PTF is  
applied to the IBM i partition, the CHGHYSSTS command will      
attempt to restore the PPRC paths that are needed to resume PPRC
replication. There are situations where DS8000 administrator    
intervention will still be necessary to restore PPRC paths. One
example is an IPL of the IBM i partition between the time that  
Metro Mirror replication was suspended and the time that the    
CHGHYSSTS command is issued to resume replication.              

Temporary Fix

Comments

Circumvention


PTFs Available

R720 MF60646 PTF Cover Letter   6127
R730 MF60961 PTF Cover Letter   6085

Affected Modules

         
         

Affected Publications

Summary Information

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




System i Support

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Document Information

Modified date:
21 May 2016