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IJ02594: MMCRNSD CLEARS AIX PVID

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APAR status

  • Closed as program error.

Error description

  • mmcrnsd clears AIX pvid

Reported in:
GPFS 3.5

Known Impact:
AIX pvid resides on both ODM and disk header. The mmcrnsd
command clears pvid from disk header and after
synchronization, pvid from ODM will also get cleared then
lspv command will show "none" for pvid.
This could cause some trouble for customer who use lspv
command to monitor the disk.

Verification steps:
Run mmcrnsd, and watch pvid in disk header by
"lquerypv -h /dev/hdisk# 80 10" command. The pvid gets
cleared after mmcrnsd command.

Local fix

  • 1) Shutdown GPFS
2) chdev -a pv=yes -l hdisk#
3) mv /var/mmfs/gen/nsdpvol /var/mmfs/gen/nsdpvol.orig
4) Run lspv again and confirm the label is displayed
5) startup GPFS

Problem summary

  • mmcrnsd call clears out AIX PVID on the disk.

Problem conclusion

  • On AIX, don't clear/format the first sector of the disk.

Temporary fix

  • 



Comments


    

  • 



APAR Information




    

  • APAR number
    IJ02594
    • 

  • Reported component name
    SPECTRUM SCALE
    • 

  • Reported component ID
    5725Q01AP
    • 

  • Reported release
    410
    • 

  • Status
    CLOSED  PER
    • 

  • PE
    NoPE
    • 

  • HIPER
    NoHIPER
    • 

  • Special Attention
    NoSpecatt / Xsystem
    • 

  • Submitted date
    2017-12-12
    • 

  • Closed date
    2018-01-10
    • 

  • Last modified date
    2018-01-10
    • 





    

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

    • 

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

    
IJ03159
    

    • 



Fix information


    

  • Fixed component name
    SPECTRUM SCALE
    • 

  • Fixed component ID
    5725Q01AP
    • 



Applicable component levels


    








      
              
                            

              

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Document Information


            

            


                        

            Modified date:
            

            10 January 2018
            

            
                      

        


        

        


      

    

  



    

  

  
    
            

          
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