IBM Support

IV62122: REDUCED PERFORMANCE OF MV ON FS WITH BLOCKSIZE LARGER THEN 128KB APPLIES TO AIX 7100-04

A fix is available

Obtain the fix for this APAR.

Subscribe

You can track all active APARs for this component.

 

APAR status

  • Closed as program error.

Error description

  • The mv command uses a fixed 128k transfer buffer even
if the filesystem uses a larger then 128k blocksize.
This results into slower file moves of large files
on non JFS2 filesystems which utilize a blocksize larger
then 128k.

Local fix

  • 



Problem summary


    

  • For file system with large block size, the mv command may
show low performance.

    



Problem conclusion


    

  • Code changes has been done to improve the performance of mv
command for file system with large block size.

    



Temporary fix


    

  • 



Comments


    

  • 7100-02 - use AIX APAR IV61837
7100-03 - use AIX APAR IV62042
7100-04 - use AIX APAR IV62122

    



APAR Information




    

  • APAR number
    IV62122
    • 

  • Reported component name
    AIX V7.1
    • 

  • Reported component ID
    5765H4000
    • 

  • Reported release
    710
    • 

  • Status
    CLOSED  PER
    • 

  • PE
    NoPE
    • 

  • HIPER
    NoHIPER
    • 

  • Submitted date
    2014-06-30
    • 

  • Closed date
    2014-06-30
    • 

  • Last modified date
    2016-05-11
    • 





    

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

    
IV61837
    

    • 

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

    • 



Fix information


    

  • Fixed component name
    AIX V7.1
    • 

  • Fixed component ID
    5765H4000
    • 



Applicable component levels


    

  • R710  PSY  U861549
       UP15/11/23  I  1000
    • 



PTF to Fileset Mapping








      
              
                            

              

              [{"Business Unit":{"code":"BU054","label":"Systems w\/TPS"},"Product":{"code":"SSMV87","label":"AIX 6.1 Enterprise Edition"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"710","Edition":"","Line of Business":{"code":"LOB08","label":"Cognitive Systems"}},{"Business Unit":{"code":"BU058","label":"IBM Infrastructure w\/TPS"},"Product":{"code":"SSMVAX","label":"AIX Express Edition"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"710","Edition":"","Line of Business":{"code":"LOB08","label":"Cognitive Systems"}},{"Business Unit":{"code":"BU054","label":"Systems w\/TPS"},"Product":{"code":"SG11R","label":"AIX 7.1 HIPERS, APARs and Fixes"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"710","Edition":"","Line of Business":{"code":"","label":""}}]
              

                          

          
 
        

      

    

      

        

          

            
Document Information


            

            


                        

            Modified date:
            

            11 May 2016
            

            
                      

        


        

        


      

    

  



    

  

  
    
            

          
Page Feedback