OptiConnect performance factors
Several factors can affect the performance of OptiConnect.
- Storage pool
OptiConnect is initially installed to use the *BASE storage pool. You must determine if this storage pool and the amount of storage that is allocated to the pool are appropriate for each system in the cluster. Specify at least 16 MB per application system on the database system for OptiConnect.
- Job class and priority
The OptiConnect agents run under the QYYCAGNT class in the QSOC library. The agent job class is shipped to run at priority 20; however, the job automatically runs at the same priority as its corresponding source job.
- SOCMGR job description QYYCMGR
As part of the job description for the SOCMGR job, the request data calls the QYYCMGR program in the QSOC library. The following parameters are passed to the program:
- The first parameter value is the initial number of agent jobs that are started in the agent job pool. This number includes both active and available agent jobs. Active agent jobs are connected to a source DDM user job. Available agent jobs are those that are not currently connected to a user job, but are waiting to be used. When active jobs end, the connection manager submits jobs to maintain the number of jobs in the agent job pool. This parameter is similar to the prestart jobs parameter that is used when you start a subsystem. When the subsystem starts, jobs are available.
- The second parameter value is the minimum number of available agent jobs that are maintained in the agent job pool. When available agent jobs become active agent jobs, the connection manager submits jobs to maintain the number of available agent jobs. This number must always be less than 50.
- The third parameter value is ignored. Enter 0.
The default parameters are (0 0 0).
You can adjust these values to prestart a predetermined number of agent jobs. When a work request comes in, it is sent directly to an agent job already running or prestarted. The number of agent jobs should be adjusted according to the requirements of individual installations.
To prestart agent jobs, change the defaults for the QYYCMGR job description. To change these values, follow these steps:
- Enter CHGJOBD QSOC/QYYCMGR.
- Press F4 (Prompt) and then press F10 (Additional parameters).
For the request data, change the default parameter values (0 0 0) to the values that you want.
Prestart agent jobs can only be used by applications whose DDM files have QYCTSOC as the device. If the *OPC controller method is used, DDM prestart jobs must be configured.
Parent topic:
Customizing OptiConnect