OA55390: D M=CONFIG(XX) REPORTS ON A DEVICE AS HAVING A NOT GEND CHANNEL PATH, WHILE THE PATH IS INSTALLED AND OPERATIONAL

APAR status

• Closed as fixed if next.

Error description

• A device is defined with two CHPIDs - FA and FF, both paths are
  operational and actively used, as confirmed by the D M=DEV
  system command. However, the D M=CONFIG(xx) command flags one of
  the channel paths as NOT GENERATED, as it follows from
  MSGIEE097I below:
  .
    IEE097I 13.46.16 DEVIATION STATUS
                   FROM MEMBER CONFIGxx
    DEVICE      DESIRED   ACTUAL
    7900,FF      ONLINE   NOT GEND
  .
  The message is incorrect and should not be issued by the D
  M=CONFIG(xx) command processor
  
  ANALYSIS:
  A dump confirms that the flagged path is installed and used; the
  LISTU 7900 subcommand in IPCS returns:
    LPM...... 30    PIM...... 30
    CHPID.... FFFFFAFF  00000000
                  --==
  Yet the IEEMPDV1 module displays CHP FF as NOT GEND, because
  subroutine CHECPATH attempts to locate the CHP in the SCHCHPID
  string, immediately finds it at offset +0 (mask 80), and exits,
  keeping a default of NOTGEN.
  
  KNOWN IMPACT:
  The D M=CONFIG(xx) system command may report on a valid and
  installed CHPID as NOT GEND in the IEE097I message
  
  VERIFICATION STEPS:
  MSGIEE097I returns a DEV,CHP with ACTUAL=NOT GEND. However, the
  D M=DEV(dev) system command confirms that the CHP is installed.
  

Local fix

• BYPASS/CIRCUMVENTION:
  no circumvention
  

Problem summary

• ****************************************************************
  * USERS AFFECTED: Users at HBB7790 and above                   *
  ****************************************************************
  * PROBLEM DESCRIPTION: The D M=CONFIG(xx) command output       *
  *                      in MSGIEE097I may show some device      *
  *                      paths as NOT GEND when they actually    *
  *                      are installed.                          *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  D M=CONFIG(xx) command ("display deviations") processing
  invokes module IEEMPDV1 to compare the actual system
  configuration with the desired configuration specified in the
  CONFIG(xx) parmlib member.  IEEMPDV1's logic to check device
  paths is faulty and may result in message IEE097I showing some
  paths as NOT GEND when they actually are installed.
  
   IEE097I hh.mm.ss DEVIATION STATUS FROM MEMBER CONFIGxx
   DEVICE      DESIRED   ACTUAL
   dddd,pp     ONLINE    NOT GEND
  
  The D M=DEV(dddd) command will show the correct actual
  state of the device paths.
  
  Other than incorrectly reporting a deviation in the
  configuration, there is no impact to the system.
  

Problem conclusion

Temporary fix

Comments

• This APAR is being closed FIN with concurrence from the
  submitting customer. This means that a solution to this
  APAR is expected to be delivered from IBM in a release
  (if any) to be available within the next 36 months.
  

APAR Information

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

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

Fix information

• Fixed component name

  MP RECONFIG

• Fixed component ID

  5752SC1CZ

Applicable component levels

• R7A0 PSN

     UP

• R7B0 PSN

     UP

• R790 PSN

     UP