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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



Document information

More support for: AIX Enterprise Edition

Software version: 710

Operating system(s): AIX

Reference #: IV64844

Modified date: 22 May 2015