CICSplex DBCTL Summary attribute group

The DBCTL Summary attributes report on the status of the CICS database control (DBCTL) interface for each monitored CICS region.

Use the DBCTL Summary attributes in situations to determine if DBCTL is active. These attributes provide data for the DBCTL Summary table view.

CICS Region Name Indicates the job name or modify ID of the CICS region being monitored. Each CICS region in a z/OS image has a unique name. This name is an alphanumeric string, with a maximum of 8 characters, and case-sensitive. CICS region names are always in uppercase characters.

DBCTL Active Indicates whether or not the CICS Database Control facility for IMS (DBCTL) is active.

DBCTL Subsystem Name The subsystem identifier associated with DBCTL. The value format is an alphanumeric string, maximum 4 bytes.

DLI DB Monitor Active Indicates whether or not the DL/I Database Monitor is active. The DB Monitor has high overhead and can potentially impact both DL/I and CICS performance.

DLI Percent DMB Pool Use Percentage used of the Data Management Block (DMB) storage pool. The DMB pool is acquired from the CICS dynamic storage area and should be set large enough to accommodate all DMBs used in CICS, including shared databases. If the pool is not large enough, operating system close/open of databases can become necessary to service new database requests. The value format is a percentage in the range 0 - 100.

DLI Percent ENQ Pool Use DL/I enqueue pool usage expressed as a percentage. The maximum amount of storage that can be used is set by the ENQPL parameter of the SIT. PI enqueue pool storage is GETMAINed out of OSCOR, and a transaction that cannot be serviced because of an OSCOR shortage or because the ENQPL maximum has been reached is terminated with a U0775 abend. The value format is a percentage in the range 0 - 100.

DLI Percent PSB Pool Use Percentage used of the Program Specification Block (PSB) storage pool. The PSB pool is acquired from the CICS dynamic storage area and should be set large enough to accommodate all PSBs used in CICS, including shared databases. If the pool is not large enough, operating system close/open of databases can become necessary to service new database requests. The value format is a percentage in the range 0 - 100.

DLI Percent Thread Use Percentage of IMS DL/I threads in use. When this value reaches 100%, tasks are placed in a wait condition until threads become available. The value format is a percentage in the range 0 - 100.

Origin Node The combination of z/OS System ID (SMFID) and CICS region name. The value format is an alphanumeric string, maximum 32 bytes, and case-sensitive.

When a situation is true, the system compares the origin node name in the attribute to the names of managed systems assigned to the item. If the origin node name matches the name of a managed system, the status of the item changes accordingly. If the names of the origin node and the managed systems do not match, the status of the item remains unchanged.

System ID Indicates the 4-character name that uniquely identifies an active z/OS operating system within a given CICSplex. The value format is an alphanumeric string, maximum 4 characters, and case-sensitive. z/OS System IDs are always in uppercase characters.