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IV64844: CHVG -P SIZE VG MAY CAUSE LSVG -P ERROR IF DISK BLOCK SIZE IS 4K APPLIES TO AIX 7100-03

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APAR status

  • Closed as program error.

Error description

  • When disk block size is 4K, running "chvg -P newsize
vgname"
may cause "lsvg -p vgname" to return incorrect output
later:
testvg:
PV ID             PV STATE          TOTAL PPs   FREE PPs
  FREE
DISTRIBUTION
0000000000000000  ???????           0           0
  00..00..00..
00..00

Local fix

  • 



Problem summary


    

  • chvg -P, run on a VG with 4K block size disks may zero out or
otherwise garble the PV Entries area of LVM meatadata,
rendering the VG useless.

    



Problem conclusion


    

  • Correct code to properly initialize/set variables.

    



Temporary fix


    

  • 



Comments


    

  • 6100-09 - use AIX APAR IV65678
7100-03 - use AIX APAR IV64844

    



APAR Information




    

  • APAR number
    IV64844
    • 

  • Reported component name
    AIX V7.1
    • 

  • Reported component ID
    5765H4000
    • 

  • Reported release
    710
    • 

  • Status
    CLOSED  PER
    • 

  • PE
    NoPE
    • 

  • HIPER
    NoHIPER
    • 

  • Submitted date
    2014-09-12
    • 

  • Closed date
    2014-10-08
    • 

  • Last modified date
    2015-05-22
    • 





    

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

    • 

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

    
IV65678 IV65759
    

    • 



Fix information


    

  • Fixed component name
    AIX V7.1
    • 

  • Fixed component ID
    5765H4000
    • 



Applicable component levels


    

  • R710  PSY
       UP
    • 








      
              
                            

              

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Document Information


            

            


                        

            Modified date:
            

            22 May 2015
            

            
                      

        


        

        


      

    

  



    

  

  
    
            

          
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