What is the purpose of the CDBSS / NGTSS Subsystem parameter CSM ?

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    This document contains official content from the BMC Software Knowledge Base. It is automatically updated when the knowledge article is modified.


    PRODUCT:

    Next Generation Technology Reorg for DB2 for z/OS


    APPLIES TO:

    NGT Load, NGT Unload, NGT LOBMaster, NGT Stats



    QUESTION:

    What does the NGTSS PROC parameter CSM= do?

    //********************************************************************
    //*        PROCEDURE FOR THE STARTUP
    //*        OF THE CDB/SUBSYSTEM
    //********************************************************************
    //** IT IS GENERALLY NOT NECCESSARY TO SET ANY OF THESE PARMS       **
    //**    CONSULT WITH CDB SUPPORT TO SET PARMS                       **
    //********************************************************************
    //NGTSS   PROC XIPL=,      CROSS IPL RESTART              DEFAULT  YES
    //             LOGLIMIT=   LIMIT CDBSS LOGSIZE IN K LINES DEFAULT    0
    //*            RST=,       RSTLIMIT IN MINUTES TO WAIT    DEFAULT    0
    //*            CSM=,       CROSS SYSTEM MESSAGING         DEFAULT  YES
    //*            GROUP=,     SYSPLEX GROUP NAME             DEFAULT ZCDBSS
    //*            UTL=,       UPPER MEMORY LIMIT IN MEGS
    //*            DSNM=,      DSNMAX IN MONITORED DATASETS   CALCULATED
    //*            DSP=,       DSPMAX IN UNITS OF MEGA BYTES  CALCULATED
    //*            SQA=,       SQALIMIT IN UNITS OF KILOBYTES CALCULATED

     


    ANSWER:

    The NGTSS (aka CDBSS) PROC CSM parameter controls whether NGT Subsystems in a SYSPLEX share NGT Subsystem messages.

    BMC Customer Support may request the NGTSS joblog(s) to assist in diagnosing NGT problems in a SYSPLEX, and the BMC recommendation is to use CSM=YES because all messages are available in a single NGTSS output.  

    With CSM=YES, NGT Subsystem (CDBSS / NGTSS) messages are broadcast to other members of the SYSPLEX and will appear in the NGTSS joblog.

    As an example, in a 2-way SYSPLEX (BMCA and BMCB) and with the NGTSS using CSM=YES, you will see NGTSS messages such as the following:

     BMCA     19:16:31.97 SCDNGRE6.00F3 NGTC225 JOB(SCDNGRE6) STMT(2) ON SYSTEM(BMCA) CONNECTED TO GROUP(209)LRSN(00D5FBF14F083597880000)
     BMCA     19:16:31.97 SCDNGRE6.00F3 NGTC999 SENDING "LOGON" TO 1 MEMBERS.       
     BMCB     19:16:31.97 DB#NGTSS.006C NGTC225 JOB(SCDNGRE6) STMT(2) ON SYSTEM(BMCA) CONNECTED TO GROUP(180)LRSN(00D5FBF14F083597880000)
     BMCB     19:16:32.97 DB#NGTSS.006C NGTC226 JOB(SCDNGRE6) STMT(2) ON SYSTEM(BMCA)NORMALLY DISCONNECTED FROM GROUP(180).


    If CSM=NO is specified then each of the NGTSS joblogs from the SYSPLEX LPAR's would be required.  However, functionally it has no impact on the NGT utilities.



     


    Article Number:

    000167355


    Article Type:

    FAQ/Procedural



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