The image admin067.gif illustrates a typical RAC architecture and how the Scheduler works with it. It shows the following elements:End of image description.

• A database, which contains a Job Table

• Instance 1, Instance 2, and Instance 3

• Job Coordinator 1, which controls three job slaves

• Job Coordinator 2, which controls three job slaves

• Job Coordinator 3, which controls three job slaves

• Nine job slaves

Also, the following relationships apply:

• Job Coordinators 1, 2, and 3 each control three slaves

• Instance 1 works with Job Coordinator 1

• Instance 2 which works with Job Coordinator 2

• Instance 3, which works with Job Coordinator 3

• The three Job Coordinators exchange information among themselves

End of image description.