CICSplex Transient Data Summary attribute group

The CICSplex Transient Data Summary attribute group provides statistics on the current use of intrapartition resources. Use the CICSplex Transient Data Summary attributes to review data about the number of buffer waits, string waits, and the percentage of buffers and control intervals in use.

Note:
The attributes within the CICSplex Transient Data Summary group are stored for historical retrieval within the Tivoli Data Warehouse. Selected attributes within this group are candidates for the TDW's summarization and pruning features.

Buffer Waits Indicates the number of requests that are currently suspended pending the availability of a transient data buffer. The value format is an integer of maximum 4 bytes.

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.

Current String Waits Indicates the current number of tasks that require the physical reading or writing of a CI and are suspended because of the lack of an available string. The value format is an integer of maximum 4 bytes.

Origin Node Is the combination of z/OS System ID (SMFID) and CICS region name. The value format is an alphanumeric string, maximum 32 characters, that is 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.

Percent Active Strings Indicates the percentage of available strings currently being used for I/O to the intrapartition data set. This value is calculated by dividing the current string count by the total number of strings. The value format is a percentage in the range of 0-100.

Percent Buffers in Use Indicates the percentage of transient data buffers in use. This value is calculated by dividing the current buffers in use by the total number of buffers. The value format is a percentage in the range of 0-100.

Percent CIs in Use Indicates the percentage used of the transient data VSAM data set Control Intervals (CI). When this value reaches 100%, if additional extents cannot be taken, because of lack of space on eligible volumes or because secondaries have not been defined, tasks issuing transient data write requests will be terminated abnormally for NOSPACE reasons unless the NOSPACE condition is explicitly handled by the application. The value format is a percentage in the range of 0-100.

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.

Total String Waits Indicates the total number of tasks that have been suspended because of the lack of an available string since CICS initialization. The value format is an integer of maximum 4 bytes.