OptiConnect performance factors

Several factors can affect the performance of OptiConnect:

• Storage Pool

  OptiConnect is initially installed to use the *BASE storage pool. You should determine if this storage pool, and the amount of storage that is allocated in the pool, is 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 will automatically run at the same priority as its corresponding source job.

• SOCMGR Job Description, QYYCMGR

  As part of the job description for the SOCMGR, the request data calls the QYYCMGR program in the QSOC library. The parameters that are passed to the program are:

  • The first number 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 agents connect to a source DDM user job. Available agents are those that are not currently connected to a user job, but are waiting to be used. As 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 starting a subsystem. When the subsystem starts, jobs are available.
  • The second is the minimum number of available agents that are maintained in the agent job pool. As available agents become active agents, the Connection Manager submits jobs to maintain the number of available agent jobs. This number should 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 gets sent directly to an agent job that is already running or prestarted. The number of agents should be adjusted according to the requirements of individual installations.

  To prestart agent jobs, change the defaults for QYYCMGR job description. To change these values,

  1. Enter:

     CHGJOBD QSOC/QYYCMGR

  2. Press F4, then press F10

  For the request data, change the default PARM value (0 0 0) to the desired values.

  Note:
  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.