IBM Support

IJ44525: POTENTIAL FOR DATA INTEGRITY ISSUES ON ALL CLUSTERS USING RDMA

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APAR status

  • Closed as program error.

Error description

  • It is possible that an application running on an IBM
Spectrum Scale using RMDA may read incorrect data from
files stored on GPFS.

Local fix

  • Disable RDMA.

Problem summary

  • It is possible that an application running on an IBM
Spectrum Scale using RMDA may read incorrect data from
files stored on GPFS.

Problem conclusion

  • This problem is fixed in 5.1.2 PTF 9
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:

Fixed code so that the integrity issue can no longer happen.


Work around:
Disable RDMA.
Problem trigger:
Race condition between the RDMA software
layer and IBM Spectrum Scale.
Symptom:
Unexpected Results/Behavior
Platforms affected:
ALL Linux OS environments
Functional Area affected:
RDMA
Customer Impact:
Critical

Temporary fix

  • 



Comments


    

  • 



APAR Information




    

  • APAR number
    IJ44525
    • 

  • Reported component name
    SPEC SCALE STD
    • 

  • Reported component ID
    5737F33AP
    • 

  • Reported release
    512
    • 

  • Status
    CLOSED  PER
    • 

  • PE
    NoPE
    • 

  • HIPER
    NoHIPER
    • 

  • Special Attention
    NoSpecatt / Xsystem
    • 

  • Submitted date
    2022-12-13
    • 

  • Closed date
    2022-12-13
    • 

  • Last modified date
    2022-12-13
    • 





    

  • 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":"512","Line of Business":{"code":"LOB26","label":"Storage"}}]
              

                          

          
 
        

      

    

      

        

          

            
Document Information


            

            


                        

            Modified date:
            

            13 December 2022
            

            
                      

        


        

        


      

    

  



    

  

  
    
            

          
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