IBM Support

IV53116: RESERVATION CONFLICT AFTER LPM WHEN RESERVE_POLICY=SINGLE_PATH

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APAR status

  • Closed as program error.

Error description

  • On an NPIV client when the reserve_policy on a disk is
set
to single_path,there are times after an LPM operation is
completed, one of the disks would experience reservation
conflict. The sequence of events as per error log entries
CLIENT_PMIG_STARTED
CLIENT_PMIG_DONE
SC_DISK_ERR10 which decodes to reservation conflict

Note this does NOT impact VSCSI clients.

Local fix

  • 



Problem summary


    

  • On an NPIV client when the reserve_policy on a disk is
set
to single_path,there are times after an LPM operation is
completed, one of the disks would experience reservation
conflict. The sequence of events as per error log entries
CLIENT_PMIG_STARTED
CLIENT_PMIG_DONE
SC_DISK_ERR10 which decodes to reservation conflict

Note this does NOT impact VSCSI clients.

    



Problem conclusion


    

  • Code corrected to avoid the issue.

    



Temporary fix


    

  • 



Comments


    

  • 



APAR Information




    

  • APAR number
    IV53116
    • 

  • Reported component name
    AIX 5.3 EXT SUP
    • 

  • Reported component ID
    5765G0399
    • 

  • Reported release
    53E
    • 

  • Status
    CLOSED  PER
    • 

  • PE
    NoPE
    • 

  • HIPER
    NoHIPER
    • 

  • Submitted date
    2013-12-09
    • 

  • Closed date
    2013-12-09
    • 

  • Last modified date
    2013-12-09
    • 





    

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

    
IV46202
    

    • 

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

    • 



Fix information


    

  • Fixed component name
    AIX 5.3 EXT SUP
    • 

  • Fixed component ID
    5765G0399
    • 



Applicable component levels


    

  • R53E  PSY
       UP
    • 








      
              
                            

              

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Document Information


            

            


                        

            Modified date:
            

            09 December 2013
            

            
                      

        


        

        


      

    

  



    

  

  
    
            

          
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