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Siebel System Administration Guide > Siebel Enterprise Server Architecture > About Siebel Server Components > About Server Component Processes (Shells)The Siebel Server runs each component in its own separate process (or shell). These shells provide the interface for a component to communicate with shared memory, and use infrastructure facilities for logging, events, networking, and so on. A shell performs the following actions when it is forked off:
The Siebel Server forks off an appropriate shell based on the component mode (interactive, batch, or background) and whether the component is object manager-based, multithreaded, or both. The tables in this topic identify the shell types created in various scenarios for interactive-mode, batch-mode, and background-mode components. NOTE: To conserve system resources and minimize the number of processes running on the Siebel Server, disable the component groups that you do not plan to run. If you cannot disable a component group because you require components within the group, then you can set other components within the group that you do not require to Manual Start mode. For information about disabling component groups, see About Enabled and Disabled Component Groups. For information about setting a component to start manually, see About Starting Siebel Server Components. Shell Types for Interactive-Mode ComponentsTable 5 identifies the shell types created for interactive-mode components. Shell Types for Batch-Mode ComponentsTable 6 identifies the shell types created for batch-mode components. Shell Types for Background-Mode ComponentsTable 7 identifies the shell types created for background-mode components. Examples of Shells for Siebel Server ComponentsThe following are examples of shells for Siebel Server components:
Parameters Controlling the Number of ShellsThe following parameters configure shell (process) startup for interactive, batch, and background mode components:
For more information about configuring these parameters, see Siebel Enterprise, Server, and Component Parameters and Application Object Manager Parameters in Server Manager. To review information about the shells forked off by the Siebel Server, access the Siebel Server log file. For information about viewing Siebel Server log files, see Siebel System Monitoring and Diagnostics Guide. |
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