Several DB2 Satellite Edition components provide specialized support for your satellite environment. You can install additional components on a satellite as you require them. Use the information in this section to make component choices during the initial installation of your satellite.
The Inbound Remote Administration component provides support for remote DB2 Universal Database systems to connect to and administer this system. The DB2 Control Center, Command Line Processor (CLP), and any other vendor tool that uses the DB2 administrative API interfaces, can perform administrative tasks. For more information about using the Control Center to administer a satellite, see Appendix C, Administering DB2 Satellite Edition from the Control Center.
The Inbound Remote Administration component only supports TCP/IP connections.
DB2 data replication replicates changes between relational tables. In the satellite environment, replication tasks will likely involve replicating changes between tables on the satellite and your corporate systems. The table that is the source of changes is called the source table and must reside on a non-satellite system. The table that is updated with source table changes is called the target table which resides on one or more satellites. All target table types including replica's which support changes at both the source and target table are supported on the satellite. The DB2 server that contains the replication control information is called the replication control server. For more information, see the Replication Guide and Reference.
The Apply component installs the Apply program which copies changes to target tables. The Capture component installs the Capture program, which captures changes made to source tables. In most satellite environments, you will install both replication components.
The Apply program then sends these changes to the corporate system. This program also receives changes made to the corporate customer data and then applies them to the local copy on the satellite.
For example, consider satellites used by a travelling sales force that require access to customer data, such as names and addresses. Rather than storing the data for all customers, each satellite only contains the system user's customers, a subset of the customers stored on the central corporate database. If the customer data can be updated on both the corporate system and the satellite, then changes must flow from the corporate system to the satellite, and from the satellite to the corporate system. Both the Apply and Capture programs are needed to keep both databases synchronized. The Capture program on the satellite captures the changes made to the local copy of the customer data.
If you will only be using replication to maintain tables containing reference data on a corporate database, data that is not updated on the satellite, you only need to install the Apply component on the satellite.
Replication will also need to be installed on your corporate systems if you are using replication on your satellites. For more information on replication, and the Capture and Apply programs, refer to the Replication Guide and Reference.
The Control Server Synchronization component installs the code required for DB2 satellite synchronization and replication. Using synchronization, the satellite can connect to the DB2 control server, using the db2sync command or a user-written application that uses the synchronization APIs, to report its status and receive administrative commands.
The DB2 Connect Support component allows the satellite to directly connect to a host or AS/400 system if:
Alternatively, you can install DB2 Connect Enterprise Edition on a separate machine, and route the satellite's connections to the DB2 database on a host or AS/400 system through DB2 Connect. For more information, see Connectivity Scenarios.
The Miscellaneous Tools component consist of tools that provide administration function. There are two subcomponents:
You should only install these tools on your test satellites, because these tools are designed for administration staff and IBM service.
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