Satellite Administration Center Tool

The Satellite Administration Center is used to set up and administer a group of DB2 servers that perform the same business function. These servers, known as satellites, all run the same application and have the same DB2 configuration (database definition) to support this application.

In the Satellite Administration Center, you create a group and then define the satellites as members of this group. You can administer the group as a single entity, instead of having to administer each satellite separately. If you later acquire additional DB2 servers that will perform the same business function, you can add them to the group as additional satellites. The administration solution provided by the satellite environment is fully scalable.

Information about the satellite environment is stored in the satellite control database (SATCTLDB). This database records, among other things, which satellites are in the environment and which group each satellite belongs to. The DB2 server that contains this database is known as the satellite control server.

You administer a group of satellites by creating batches, using the Satellite Administration Center. The batches contain scripts that set up and maintain the database definition that supports the application on the satellite. Each satellite regularly connects to its satellite control server and downloads any scripts that apply to it. The satellite executes these scripts locally and uploads the results back to the SATCTLDB.

This process of downloading batch scripts, executing them, and reporting the results of the batch execution is known as synchronization. A satellite synchronizes to maintain its consistency with the other satellites that belong to its group.

Before you can use the Satellite Administration Center, you must do the following:

• Install the satellite control server.
  
  
• Create the SATCTLDB.
  
  
• Catalog the SATCTLDB in the Control Center, if it is not already catalogued.