Enhancements to Existing Features › Options › Option for CICS › Configuration Options—Parmlib Member CICSOPTS

Configuration Options—Parmlib Member CICSOPTS

The configuration options member CICSOPTS has been enhanced to include the following options:

GRANDE-STORAGE-AUTOSIZE-MEMLIMIT

This option dynamically adjusts the MEMLIMIT value for the CICS address space as needed.

Most storage that is used for monitoring a CICS region through the CA SYSVIEW for CICS Data Collector is located in 64-bit storage. CA SYSVIEW allocates blocks of 64-bit storage for use and then manages those blocks internally.

The MEMLIMIT= parameter of the EXEC statement controls the amount of storage available to the address space.

CA SYSVIEW assumes if the MEMLIMIT= parameter has been specified and is less than 16X, then that amount of storage is used for CICS or existing applications.

For this reason, when CA SYSVIEW allocates 64-bit storage, the MEMLIMIT value is dynamically adjusted. This adjustment avoids any impact or steal possible storage from the existing application.

Default: Yes

Change: This option can only be set during the initialization using the CICSOPTS parmlib member.

Valid Values are:

• No - Do not adjust or autosize the MEMLIMIT value.

  If No is specified, it is recommended that you increase the currently specified MEMLIMIT value by 1 GB.

• Yes -Adjust the MEMLIMIT size as needed.

Related Option: GRANDE-STORAGE-SIZE-LIMIT

GRANDE-STORAGE-SIZE-LIMIT

Most storage that is used for monitoring a CICS region through the CA SYSVIEW for CICS Data Collector is located in 64-bit storage. CA SYSVIEW allocates blocks of 64-bit storage for use and then manages those blocks internally.

The amount of 64-bit storage CA SYSVIEW allocates within a CICS address space is typically 32 MB or less.

This option controls the maximum amount of 64-bit storage that SYSVIEW can allocate within a CICS address space.

Valid Values:

• Minimum - 1 GB

Default: 1 GB

Change: This option can only be set during the initialization through the CICSOPTS parmlib member.

Related Options:

• GRANDE-STORAGE-AUTOSIZE-MEMLIMIT

LIFETIME-EXCLUDE

Specify the maximum lifetime that a transaction can have without being excluded from statistical averages. Transactions with a lifetime value greater than the specified value are excluded from statistical averages so that the data does not become skewed.

CA SYSVIEW monitors the number of excluded transactions and bypasses the averaging of values such as CPU time and lifetime.

This averaging does not exclude transactions from threshold processing.

Valid Values:

• 00:00:00 - Setting the value to zero causes the exclusion process to be bypassed.

Default: 00:00:00

Change: This option can only be set during the initialization through the CICSOPTS parmlib member.

Note: Before Release 13.9, the default was 00:01:00.

PERFORMANCE-DATA-SEGLIMIT-DB2

The CICS data collector can monitor and collect detailed information about DB2 requests made by a transaction.

You can collect the DB2 requests by unique combinations of the following segment keys:

• Program
• Type
• Statement

A long running transaction making DB2 requests can produce many unique segment keys. Many keys can have a negative impact on the performance. For this reason, the number of unique segment keys can be controlled.

If the segment limit is reached, no data is lost. Another generic segment is created.

The following related options are required:

• PERFORMANCE-COLLECTION: Yes
• PERFORMANCE-DATA-EXIT-RM: Yes
• PERFORMANCE-DATA-EXIT-RM-DB2: Yes
• PERFORMANCE-GLOBAL-EXIT-RM: Yes

Default: 100

Change: This option can be modified after initialization through the CCONFIG or CICSSET commands.

Valid Values are:

• Minimum: 1
• Maximum: 1000

Before Release 13.9:

• The default was 25
• The maximum was limited to 100

Related Options:

• PERFORMANCE-DATA-DB2-BY-PROGRAM
• PERFORMANCE-DATA-DB2-BY-STMT
• PERFORMANCE-DATA-DB2-BY-TYPE
• PERFORMANCE-DATA-SEGLIMIT-DB2
• PERFORMANCE-LOG-DB2