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MA47943 - LIC-OTHER SRCB6006965 INCORROUT DLPAR REMOVE AFTER ADD

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 APAR (Authorized Program Analysis Report)

Abstract

LIC-OTHER SRCB6006965 INCORROUT DLPAR REMOVE AFTER ADD

Error Description

Client used HMC to add a physical adapter to an IBMi partition.
As soon as the HMC indicated the procedure had completed, the  
client realized they had made a mistake and issued a remove    
adapter from the HMC. While this remove failed according to the
HMC, the slot the adapter was in was marked as missing and the  
adapter as disabled. Server IPL was needed to recover the bus.  
                                                               
When Dynamic Logical Partitioning (DLPAR) is used to remove    
a PCI adapter/device immediately after being added, the        
Hardware Management Console (HMC) may report a failure.        
Likewise, Hardware Service Manager screens may report that the  
adapter is disabled. Further attempts to add or remove          
adapters in the same slot may also fail.                        

Problem Summary

Please see the ERROR DESCRIPTION section.                      

Problem Conclusion

When background tasks are still bringing up an adapter after a  
DLPAR add, a DLPAR remove may not remove all adapter resources,
such as MMIO. When the Converged Hypervisor detects this        
problem, it will prevent future DLPAR adds in that slot. A      
DLPAR remove now checks when a DLPAR add is still in progress  
and waits until background tasks are complete before removing  
resources.                                                      

Temporary Fix

Comments

Circumvention


If a user wishes to DLPAR remove an adapter after DLPAR adding  

it, Hardware Resource Manager should be used to verify that all
resources in that slot report an Operational status before DLPAR
removing it.                                                    

PTFs Available

R720 MF67112  0114

R730 MF66865  0128

R740 MF66995  0121

Affected Modules


         
         

Affected Publications

Summary Information

Status............................................CLOSED PER
HIPER...........................................Yes
Component..................................9400DG300
Failing Module..........................RCHMGR
Reported Release...................R730
Duplicate Of..............................




IBM i Support

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Document Information

Modified date:
23 July 2020