Note: Make sure Connect CDC (SQData) is installed.
IMS data that is changed will be logged by IMS, then Captured. Subscribing Engines will be authenticated by the Controller Daemon and CDC data will be Published via TCP/IP to each subscribing Engine, which will apply the data to the target datastores.
This section covers a few of the common operational activities likely to be encountered while in operation.
There are three methods supported for interacting with Connect CDC (SQDat)a components on z/OS:
- ISPF panel Interface - The IMS Quickstart Guide provides detailed step by step instructions.
- z/OS JCL - Traditional z/OS Jobs that execute the SQDCONF and SQDMON utilities and their full range of options for managing and controlling the SQDAEMON Controller Daemon and the z/OS IMS Log Reader Capture and zLog Publisher.
- z/OS Console Commands - Duplicate many of the commands associated with the SQDCONF and SQDMON utility programs. Note: In order to issue any z/OS commands from TSO (including SDSF) the user must have TSO CONSOLE authority and possibly SDSF command authority.
IMS Log Reader Capture
| Command Function | Description |
|---|---|
| P <task_name> | Stops and unmounts the capture immediately |
| F <task_name>,PAUSE | Pauses the capture |
| F <task_name>,RESUME | Resumes the capture after a pause |
| F <task_name>,DISPLAY | Display of the capture cab file with the output being written to SYSPRINT in the running STC |
| F <task_name>,STOP | Stops and unmounts the capture |
CDCzLog Publisher
| Command Function | Description |
|---|---|
| P <task_name> | Stops and unmounts the agent immediately |
| F <task_name>,PAUSE | Pauses the agent |
| F <task_name>,RESUME | Resumes the agent after a pause |
| F <task_name>,DISPLAY | Display of the agent cab file with the output being written to SYSPRINT in the running STC |
| F <task_name>,STOP | Stops the agent but leaves it mounted |
| F <task_name>,STOP,UNMOUNT | Stops and unmounts the agent (same as P command) |
| F <task_name>,STOP,FLUSH | Stops the agent after flushing out any UOWs that began before the command was issued, then unmounts |
| F <task_name>,STOP,FLUSH,FAILOVER | Same as STOP,FLUSH except that it instructs downstream engines to try to reconnect for up to 10 minutes |
| F <task_name>,START | Starts an agent that was previously stopped, but still mounted |
| F <task_name>,APPLY | Applies pending cab file changes to the agent's cab file. Agent must be mounted, stopped in order to apply |