PI73601: INVALID GDPS GEO020E DEVICE SIZE MISMATCH FOR OFFLINE DEVICE

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• During DASD Configuration and Monitor processing, GDPS may
  incorrectly issue a GEO020E 'Device Size mismatch detected'
  error when the device number of an offline device matches the
  size (in cylinders) of another device in the GDPS configuration.
  This causes GDPS to incorrectly use the device number as the
  size value.
    In the reported case, there was a device number 3000 with size
  3338 cylinders, which caused device number 3338 to report a size
  of 3338 cylinders instead of its actual size of 10016, as seen
  in a Netlog message like this:
  
  VPCEDEVC Device pair 02338-03338 size mismatch 00010016-00003338
  

Local fix

• Issue a DS QD,dddd,VALIDATE for the devices that are reporting
  incorrect sizes. This will need to be done after each IPL.
    As an alternative, if the PTF for z/OS APAR OA43706 is
  installed, consider specifying STARTUP OfflineDiscovery(YES)
  in the ANTXIN00 parmlib member.
  

Problem summary

• ****************************************************************
  * USERS AFFECTED: GDPS/PPRC GDPS/MTMM GDPS/GM                  *
  *                 GDPS/PPRC HyperSwap Manager                  *
  *                 Keywords:                                    *
  *                 GDPSPPRC/K GDPSPPRCHM/K GDPSMTMM/K GDPSGM/K  *
  ****************************************************************
  * PROBLEM DESCRIPTION: Invalid GEO020E Device Size Mismatch    *
  *                      error may occur for devices that are    *
  *                      not brought online at IPL.              *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  

Problem conclusion

• GDPS code has been changed to properly extract device size
  from DEVSERV output command.
  

Temporary fix

Comments

APAR Information

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

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

  UI43861 UI43862 UI43863

Modules/Macros

• VPCEDEVC
  

Fix information

• Fixed component name

  GDPS-GEO DISP P

• Fixed component ID

  694235B00

Applicable component levels

• R3B0 PSY UI43861

     UP17/01/16 P F701  

• R3C0 PSY UI43862

     UP17/01/16 P F701  

• R3D0 PSY UI43863

     UP17/01/16 P F701  

Fix is available

• Select the PTF appropriate for your component level. You will be required to sign in. Distribution on physical media is not available in all countries.