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CMRDTN view

Warning

Important

This feature is available only if you have are licensed for the BMC AMI Ops for CICS solution. 

The Dynamic Tuning (DTN) facility enables BMC AMI Ops Monitor for CICS along with the Alarm component of BMC AMI Ops Infrastructure and BMC AMI Ops Automation for CICS to dynamically alter the resource attributes for the following items:

  • Db2 Connection (DB2CON) attributes values for TCBLIMIT and THREADLIMT, which DTN monitors via the CDB2CON view
  • MXT (MAXTASK) in IBM CICS that is defined in the SIT, which DTN monitors via the CTRNCLA view under transaction class DFHTCL00

By default, the function is disabled. For more information about implementing the Dynamic Tuning facility, see Implementing-Dynamic-Tuning-for-IBM-CICS-resource-attributes. 

The CMRDTN family of views contain the controlling parameters for Dynamic Tuning based on target groups. Use the CMRDTN views and dialogs to specify a group of targets that you want to control. For each target group, you can define one DB2CON parameter group and one MXT parameter group.

Each parameter group has two categories of parameters that you can set:

  • Criteria parameters where you specify the criteria that current conditions must meet before Dynamic Tuning calculates the desired increased value to the corresponding attribute.
  • Action parameters where you to specify the adjustment percent of the original value and the maximum resulting value after each adjustment.

BMC AMI Ops Monitor for CICS saves these definitions in BBPARM member CMRDTNnn in the first concatenation of the BBIPARM DD in the BBI-SS PAS. The default member name is CMRDTN00. To use other CMRDTNnn members, see BBIBBCFG parameters. When Dynamic Tuning is enabled, you must define the current CICS target name in CMRDTNnn (either explicitly or by wildcard) to activate Dynamic Tuning for that target.

CMRDTN view

The following is an example of the CMRDTN view. 

ddmmmyyyy  10:57:20 --------------- BMC AMI Ops WINDOW INTERFACE (V7.1.00) -----------------------------
COMMAND  ===>                                                                            SCROLL ===> CSR
CURR WIN ===> 1        ALT WIN ===>
 W1 =CMRDTN=====BSPC=====*======(00 BROWSE)====MVCICS===D===12==========================================
CMD Target                                             #Parm #DB2C #MXT  Update    Update    Update  Upd
--- Grp Name      Targets in Group                     GDefs GDefs GDefs  User      Date      Time   Sys
    CICS740  BCVDS74D                                     2     1     1 BCVCCS1  05FEB2024 08:32:28 SJSC
    MIXED    CRE+IO*1                                     1     0     1 BCVCCS1  23FEB2024 07:27:10 SJSC
    SAMPLE   REGION*                                      2     1     1 BCVCCS1  23FEB2024 10:56:05 SJSC
    TESTA    A,B,C,D                                      1     1     0 BCVCCS1  01FEB2024 09:11:33 SJSC
    TESTS    BCVDS73D                                     1     1     0 BCVCCS1  14FEB2024 10:52:32 SJSC
    TEST1    BCVDS75C                                     2     1     1 BCVCCS1  13FEB2024 11:26:43 SJSC
    TEST2    REGION1,REGION2,REGION3,REGION4              1     1     0 BCVCCS1  14OCT2022 07:05:47 SJSC
    TEST3    CREGION9,CREGIONA                            1     1     0 BCVCCS1  21AUG2023 12:51:52 SJSC

You can hyperlink from the #DB2C GDefs column to display the CMRDTNDC view:

 >W1 =CMRDTN===CMRDTNDC=DVPC=====*========(00 BROWSE        )====MVCICS===D=
-                                                                          
  Select to display all Target Groups                                      
                                                                           
 CMD Target     TCB  TCB  TCB  TCB  TCB    THRD THRD THRD THRD THRD   Target
--- Grp Name   %Utl %CPU %DSA %Adj %Max   %Utl %CPU %DSA %Adj %Max         
     SAMPLE       90   85   85   10   50     90   85   85   10   50   REGION
                                                                           
          
                                                                            

You can hyperlink from the #MXT GDefs column to display the CMRDTNMX view:   

 >W1 =CMRDTN===CMRDTNMX=DVPC=====*========(00 BROWSE        )===
-                                                              
  Select to display all Target Groups                          
                                                               
 CMD Target     MXT  MXT  MXT  MXT  MXT    Targets in Group     
--- Grp Name   %Utl %CPU %DSA %Adj %MAX                        
     CICS740       0    0    0    0    0   BCVDS74D             
                                                               
                             


 This section includes the following topics:

 

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BMC AMI Ops Monitor for CICS 7.5