IBM Support

IJ29719: AFM: READ A FILE MIGHT RETURN INCORRECT DATA WHEN IT IS EVICTED

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

  • Error Description:
When read a file, and at the same the file is evicted by
command "mmafmctl evict" or auto eviction, incorrect data
might be returned.

Reported in:
Spectrum Scale 5.0.4.4 on RHEL7

Known Impact:
Incorrect data read out.

Verification steps:

Recovery action:
Do not evict a file that is in-used.
Stop auto eviction until upgraded.

Local fix

  • N/A

Problem summary

  • While reading the file, the file can
be evicted and its
captured checksum shows
inconsistency for this opened file.

Problem conclusion

  •  Benefits of the solution:
No more checksum  inconsistencies

Work around: NO

Problem trigger:
Read/write file and run manual evict
on the same file.

Symptom:
File gets evicted even though the
file is opened for operations.

Platforms affected:
All Linux OS environments
Functional Area affected: AFM
Customer Impact: low

Temporary fix

  • 



Comments


    

  • 



APAR Information




    

  • APAR number
    IJ29719
    • 

  • 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
    2020-12-03
    • 

  • Closed date
    2020-12-03
    • 

  • Last modified date
    2020-12-03
    • 





    

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

    
IJ29213
    

    • 

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

                                                                    

          
 
        

      

    

      

        

          

            
Document Information


            

            


                        

            Modified date:
            

            04 December 2020
            

            
                      

        


        

        


      

    

  



    

  

  
    
            

          
Page Feedback