DC/UCF System Reports

DC/UCF System Generation › DC/UCF System Reports

DC/UCF System Reports

You can report on DC/UCF systems by using CA IDMS reports.

Categories of DC/UCF System Reports

Entities that make up DC/UCF system definitions (represented by source records in the data dictionary).
Entities that participate in executable DC/UCF systems (represented by object records in the data dictionary).
Messages. Messages are added, modified, and deleted in the data dictionary through the IDD DDDL compiler.
Device definitions. Device definitions are added to the data dictionary during CA IDMS installation.
Map definitions. Maps are added, modified, and deleted in the data dictionary through the mapping compiler.
The contents of the data dictionary load area (DDLDCLOD).

The following table lists the available DC/UCF system reports.

DC/UCF System Reports

Report Description	Report Number
DC/UCF system options (source) DC/UCF system options (object)	25 11
DDS listing of nodes DDS listing of defined resources	43 44
CA ADS description (source) CA ADS description (object)	45 40
CA OLQ system description (source) CA OLQ system description (object)	46 41
Program description (source) Program description (object)	19 04
Task description (source) Task description (object) Task description within program (source)	20 05 21
Network description by line (source) Network description by line (object)	14 01
Network description by physical terminal (source) Network description by physical terminal (object)	15 02
Network description by logical terminal (source) Network description by logical terminal (object)	17 03
Physical terminal within line (source) Logical terminal by physical terminal (source)	16 18
Destination report (source) Destination report (object)	24 07
Queue description (source) Queue description (object) Queue description within task (source)	22 06 23
Messages in the data dictionary	28
Device definitions	29
Map record indexes Map field indexes List of maps by panel List of maps List of maps by record name List of maps by element name	30 31 32 33 34 35
Data dictionary load area description	50

Report Description

Report Number

DC/UCF system options (source)

DC/UCF system options (object)

DDS listing of nodes

DDS listing of defined resources

CA ADS description (source)

CA ADS description (object)

CA OLQ system description (source)

CA OLQ system description (object)

Program description (source)

Program description (object)

Task description (source)

Task description (object)

Task description within program (source)

Network description by line (source)

Network description by line (object)

Network description by physical terminal (source)

Network description by physical terminal (object)

Network description by logical terminal (source)

Network description by logical terminal (object)

Physical terminal within line (source)

Logical terminal by physical terminal (source)

Destination report (source)

Destination report (object)

Queue description (source)

Queue description (object)

Queue description within task (source)

Messages in the data dictionary

Device definitions

Map record indexes

Map field indexes

List of maps by panel

List of maps

List of maps by record name

List of maps by element name

Data dictionary load area description

Note: For more information about samples of the DC/UCF system reports and instructions on generating the reports, see the CA IDMS Reports Guide.

Automatic Tuning

A new auto-tuning capability lets CA IDMS set the startup values for certain DC/UCF system configuration parameters based on historical information. The values are automatically adjusted over time in response to changes in workload. Auto-tuning relieves the DBA from having to monitor and adjust the parameter values manually.

The following system definition parameters are eligible for automatic tuning:

RLE count
RCE count
DPE count
SYSLOCKS

New clauses on the system generation SYSTEM statement enable or disable automatic tuning for each of these parameters.

How Automatic Tuning Works

When auto-tuning is enabled, CA IDMS begins to collect high water mark (HWM) information for the parameters being tuned. This information is collected on 24-hour intervals from the time the DC/UCF system is started. At the end of each interval, the statistics needed for tuning are updated and written to the AUTOTUNE member in SYSTRK and each HWM value is set to the current value of its associated parameter.

Statistical information is also collected at shutdown, but only if the system has been active for at least eight hours.

After five sets of statistics have been gathered and at the end of each interval thereafter, CA IDMS calculates a new value for each of the parameters being tuned. These values are used the next time the DC/UCF system is started after a normal shutdown. If the system is started after an abnormal termination, the parameter values from the previous execution are used. If you change the SYSGEN value of a tuned parameter, the new SYSGEN value is used the next time the system is started, and all historical information for the parameter is discarded.

New parameter values are recalculated at the end of each interval using the most recent HWM and information gathered from prior intervals. A smoothing algorithm is used so that abnormal conditions, such as runaway tasks, do not skew the results. Tuned values can both increase and decrease; however, they decrease more slowly than they increase.

You can use the DCMT DISPLAY AUTOTUNE command to see the current and new values for each of the tuned parameters and obtain graphs of HWM values over the last 32 time intervals.