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IV91997: ALT_DISK_COPY LEAVES DUPLICATE ODM ENTRIES IF ROOTVG WAS MOVED APPLIES TO AIX 7200-01

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APAR status

  • Closed as program error.

Error description

  • Under the condition that rootvg has been relocated to
another disk, or if rootvg LVM mirroring has been removed
from the disk from which the LPAR was booted, the
alt_disk_copy command will leave duplicate entries in the
ODM (CuAt) for the boot disk.

For example, if the system was booted from hdisk0:
# bootinfo -b
hdisk0

but rootvg no longer resides on hdisk0:
# lspv
hdisk0  <PVID>  None
hdisk1  <PVID>  rootvg

If you run alt_disk_copy to create a copy of rootvg on
hdisk0, the ODM on the altinst_rootvg/hdisk0 will
contain:
# odmget -q name=hdisk0 CuAt
[All entries will be duplicated]

Local fix

  • Rebooting the LPAR prior to performing the alt_disk_copy
will prevent this error.

Problem summary

  • The alt_disk_copy command will leave duplicate entries in the
ODM (CuAt) for the boot disk.

odmget -q name=<boot disk> CuAt
 All entries will be duplicated

Problem conclusion

  • Changed the way the boot disk is determined for the purpose of
alt_disk_copy.

Temporary fix

  • 



Comments


    

  • 



APAR Information




    

  • APAR number
    IV91997
    • 

  • Reported component name
    AIX V7.2
    • 

  • Reported component ID
    5765CD200
    • 

  • Reported release
    720
    • 

  • Status
    CLOSED  PER
    • 

  • PE
    NoPE
    • 

  • HIPER
    NoHIPER
    • 

  • Submitted date
    2017-01-04
    • 

  • Closed date
    2017-01-04
    • 

  • Last modified date
    2017-04-11
    • 





    

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

    
IV89141
    

    • 

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

    • 



Fix information


    

  • Fixed component name
    AIX V7.2
    • 

  • Fixed component ID
    5765CD200
    • 



Applicable component levels


    

  • R720  PSY  U873400
       UP17/04/06  I  1000
    • 



PTF to Fileset Mapping








      
              
                            

              

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Document Information


            

            


                        

            Modified date:
            

            10 September 2025
            

            
                      

        


        

        


      

    

  



    

  

  
    
            

          
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