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IJ34356: PROCESSING OF THE ALLOCATION MANAGER RPC CAN TAKE MORE TIME THAN EXPECTED.

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APAR status

  • Closed as program error.

Error description

  • When a file system has a high number of block allocation
regions, the processing of allocation manager rpc could
be slower than expected.

Local fix

  • Avoid running mmdf

Problem summary

  • When a file system has a high number of block allocation
regions, the processing of allocation manager rpc could
be slower than expected.

Problem conclusion

  • This problem is fixed in 5.0.5  PTF 10
To see all Spectrum Scale APARs and
their respective fix solutions refer to page
https://public.dhe.ibm.com/storage/spectrumscale/spectrum_scale
apars.html

Benefits of the solution:
Speed up processing of the allocation manager rpc.

Work Around:
Avoid running mmdf

Problem trigger:
Running mmdf

Symptom:
Hang/Deadlock/Unresponsiveness/Long Waiters

Platforms affected:
ALL Operating System environments

Functional Area affected:
All Scale Users

Customer Impact:
High Importance

Temporary fix

  • 



Comments


    

  • 



APAR Information




    

  • APAR number
    IJ34356
    • 

  • Reported component name
    SPEC SCALE STD
    • 

  • Reported component ID
    5737F33AP
    • 

  • Reported release
    505
    • 

  • Status
    CLOSED  PER
    • 

  • PE
    NoPE
    • 

  • HIPER
    NoHIPER
    • 

  • Special Attention
    NoSpecatt / Xsystem
    • 

  • Submitted date
    2021-08-11
    • 

  • Closed date
    2021-08-11
    • 

  • Last modified date
    2021-08-11
    • 





    

  • APAR is sysrouted FROM one or more of the following:
    

    • 

  • APAR is sysrouted TO one or more of the following:
    

    • 



Fix information


    

  • Fixed component name
    SPEC SCALE STD
    • 

  • Fixed component ID
    5737F33AP
    • 



Applicable component levels


    








      
              
                            

              

              [{"Business Unit":{"code":"BU058","label":"IBM Infrastructure w\/TPS"},"Product":{"code":"STXKQY"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"505","Line of Business":{"code":"LOB26","label":"Storage"}}]
              

                                                                    

          
 
        

      

    

      

        

          

            
Document Information


            

            


                        

            Modified date:
            

            12 August 2021
            

            
                      

        


        

        


      

    

  



    

  

  
    
            

          
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