IBM Support

IJ25620: AFMHARDMEMTHRESHOLD AND AFMMAXPARALLELRECOVERIES NEED TO BE TUNED AT THE NODE LEVEL (GATEWAY NODES).

Subscribe to this APAR

By subscribing, you receive periodic emails alerting you to the status of the APAR, along with a link to the fix after it becomes available. You can track this item individually or track all items by product.

Notify me when this APAR changes.

Notify me when an APAR for this component changes.

 

APAR status

  • Closed as program error.

Error description

  • AFM doesn't allow tuning the AFM tunables per node in
the cluster.  All of them seem to be only for the
whole cluster level.
Few of them like  afmHardMemThreshold
and afmMaxParallelRecoveries
need to be tuned at each gateway node.

Local fix

  • 



Problem summary


    

  • AFM doesn't allow tuning the AFM tunables per node in
the cluster.  All of them seem to be only for the
whole cluster level.
Few of them like  afmHardMemThreshold
and afmMaxParallelRecoveries
need to be tuned at each gateway node.

    



Problem conclusion


    

  • Benefits of the solution:
Ability to tune afmHardMemThreshold
and afmMaxParallelRecoveries
on a per node level.
Work around:
None.
Problem trigger:
Try to set afmHardMemThreshold
and afmMaxParallelRecoveries
using mmchnode command with -N <node> option.
Symptom:
Unexpected Results/Behavior
Platforms affected:
All Linux and AIX OS nodes.
Functional Area affected:
AFM
Customer Impact:
High Importance.

    



Temporary fix


    

  • 



Comments


    

  • 



APAR Information




    

  • APAR number
    IJ25620
    • 

  • 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
    2020-06-17
    • 

  • Closed date
    2020-06-17
    • 

  • Last modified date
    2020-06-17
    • 





    

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

    • 

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

    
IJ25622
    

    • 



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","label":"IBM Spectrum Scale"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"505","Line of Business":{"code":"LOB26","label":"Storage"}}]
              

                                                                    

          
 
        

      

    

      

        

          

            
Document Information


            

            


                        

            Modified date:
            

            18 June 2020
            

            
                      

        


        

        


      

    

  



    

  

  
    
            

          
Page Feedback