DB2 Server for VSE: System Administration

Installing and Removing the DRDA Code

Installing the DRDA code is an optional customization step that follows either installation or migration. You install it:

• Immediately after installing or migrating the base code
• At a later date, whenever it is required
• On either the application server or the application requester, or both

You can remove the DRDA code if it is no longer required.

When the DRDA code is installed on the application server, access from DB2 Server for VSE and non-DB2 Server for VSE application requesters is allowed.

When the DRDA code is installed on the application requester, access to remote application servers is allowed.

Do not install the DRDA code unless it is specifically required, as the additional code required for distributed communications requires a significant amount of storage. For details on virtual storage requirements, see Appendix A, Processor Storage Requirements.

Installing the DRDA Code on the Application Server

To enable DRDA server support, execute job control member ARIS712D. This job can be executed any time when DRDA server support is to be enabled. The support is activated the next time the DB2 Server for VSE database manager is started.

Removing the DRDA Code on the Application Server

To disable DRDA server support, the job control member ARIS713D can be executed any time. The support is deactivated the next time the DB2 Server for VSE application server is started.

Installing the DRDA Code on the Application Requester

There are two linkbooks for the Online Resource Adapter. The first linkbook is used when the shipped Online Resource Adapter phase is linkedited. The second linkbook is used to complete the enablement of the DB2 Server for VSE online DRDA application requester support.

To enable DRDA online application requester support, execute job control member ARIS715D. This job can be executed any time when DRDA online application requester support is to be enabled. The support is activated the next time the Online Resource Adapter is recycled.

To enable DRDA batch application requester support, execute job control member ARIS71LD.

Removing the DRDA Code on the Application Requester

To disable DRDA online application requester support, execute job control member ARIS716D. This job can be executed at any time when DRDA online application requester support is to be disabled. The support is deactivated the next time the Online Resource Adapter is recycled.

To disable DRDA batch application requester support, execute job control member ARIS71MD.