GDDR: GDDRLPRF returns GDDR998E GDDRHMC unable to determine B-system for CPC IBMxxxxx.MFxxxxx - syslist=* message.

Summary: GDDR998E messages reported during execution of GDDR Load Profile Management utility (GDDRLPRF).

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Symptoms

Post upgrade from GDDR 5.2 to GDDR 5.3 (GD53033), GDDR Load Profile Management utility (GDDRLPRF) returned RC16. 

Customer running Mainframe Enablers 8.5 (SF85044).                     

Error message:  
 >LPRF> GDDH106I *---------------------------------------------------------------------*
 >LPRF> GDDH106I * GDDRLPRF Validating HMC Load Activation Profile for System XXXX     *
 >LPRF> GDDH106I *---------------------------------------------------------------------*
 21242-09:00:03 GDDR998E GDDR INTERNAL ERROR: Diagnostic Information follows:
 21242-09:00:03 GDDR998E GDDRHMC unable to determine B-system for CPC IBMxxxxx.MFxxxxx - syslist=*
 21242-09:00:03 GDDR998E Please review GDDRPARM CPC parameters
 21242-09:00:03 GDDR639I GDDR Completed HMC Traffic Router with rc 16
 >LPRF> Retrieved ipl information from EOCP: 055FD,55BB0B
 >LPRF> GDDH105E GDDRLPRF Residence Address/Load Parameter ---> MISMATCH]
 >LPRF> GDDH104I GDDRLPRF Global Variable Residence Address --> XXXXX
 >LPRF> GDDH104I GDDRLPRF Global Variable Load Parameter -----> XXXXXXXX
 >LPRF> GDDH104I GDDRLPRF HMC Profile Residence Address ------> 00000
 >LPRF> GDDH104I GDDRLPRF HMC Profile Load Parameter --------->
 >LPRF> GDDH104I GDDRLPRF Running System Residence Address ---> XXXXX
 >LPRF> GDDH104I GDDRLPRF Running System Load Parameter ------> XXXXXXXX

The issue occurs in the customers production environment. In non-Prod, GDDRLPRF works without issue. However, in non-PROD all the systems are on the same CPC in DC3. In the production environment there are multiple CPCs.
 
There were no changes to the GDDR parameters.

Cause

GDDRLPRF was not passing the CPC site through correctly to GDDRHMC, causing the GDDR998E error.                    

Resolution

Workaround: 
 
Alter coding to explicitly name the Managed Systems: 

From. 
//GDDRLPRF EXEC GDDRPROC                                                
//GDDR.SYSTSIN DD *                                                     
 EXECUTIL SEARCHDD(YES)                                                 
 GDDRRXST GDDRLPRF VALIDATE                                             
/*                                                                      
//*                                                           
To:  
//GDDR.SYSTSIN DD *                                                     
 EXECUTIL SEARCHDD(YES)                                                 
 GDDRRXST GDDRLPRF VALIDATE system#1
 GDDRRXST GDDRLPRF VALIDATE system#2
 GDDRRXST GDDRLPRF VALIDATE system#3
 GDDRRXST GDDRLPRF VALIDATE system#4
 GDDRRXST GDDRLPRF VALIDATE system#5
/*                                                                     

Permanent Fix:
  • For GDDR 5.3, PTF GD53047 has been developed to correct the issue. It is available to download from Dell Technologies Online Support.
This PTF will modify GDDRLPRF to correctly pass the CPC site through to GDDRHMC, avoiding the GDDR998E error.  In addition, GDDRHMC has been updated to add 'at <site>' to the GDDR998E message so that the passed CPC site can be seen in case a similar problem occurs in the future.

Additional Information

GDDRLPRF
GDDR Load Profile Management utility (GDDRLPRF) The GDDR Load Profile Management utility (GDDRLPRF) is a batch interface between GDDR and the HMC-stored load activation profiles, applicable to systems running at the current primary DASD site. The utility provides two options:
Update the HMC load activation profile of a managed system based on GDDR IPL values stored for that system.
Validate the GDDR global variable-stored IPL parameters for a managed system against the managed system information and the information that is stored in the associated LOAD profile member.
  
Message: GDDR998E
Format 1:
INTERNAL ERROR: CALL TECH SUPPORT - ID = error_identifier
Format 2:
No SYMM parameters define DC1 gatekeepers for Symmetrix symmserial
Format 3:
GDDR INTERNAL ERROR: Diagnostic Information follows:
<diagnostic information>

Cause
Format 1: An error has occurred which appears to be a GDDR program error. The error identifier can be utilized by Dell EMC Customer Support to diagnose and resolve the error.
Format 2 is produced by GDDRGVRL to signal missing required parameters.
Format 3: A logic error was detected.

Affected Products

Geographically Dispersed Disaster Restart (GDDR)
Article Properties
Article Number: 000191109
Article Type: Solution
Last Modified: 11 Oct 2022
Version:  4
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