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System Administration Guide: Basic Administration     Oracle Solaris 11 Express 11/10
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Document Information


1.  Managing User Accounts and Groups (Overview)

2.  Managing User Accounts and Groups (Tasks)

3.  Introduction to Shutting Down and Booting a System

4.  Shutting Down and Booting a System (Overview)

5.  Shutting Down a System (Tasks)

6.  Modifying Oracle Solaris Boot Behavior (Tasks)

7.  Booting an Oracle Solaris System (Tasks)

8.  Troubleshooting Booting an Oracle Solaris System (Tasks)

9.  Managing the Oracle Solaris Boot Archives (Tasks)

10.  x86: GRUB Based Booting (Reference)

11.  Managing Services (Overview)

Introduction to SMF

Changes in Behavior When Using SMF

SMF Concepts

SMF Service

Service Identifiers

Service States

SMF Manifests

SMF Profiles

Service Configuration Repository

SMF Repository Backups

SMF Snapshots

SMF Administrative and Programming Interfaces

SMF Command-Line Administrative Utilities

Service Management Configuration Library Interfaces

SMF Components

SMF Master Restarter Daemon

SMF Delegated Restarters

SMF and Booting

SMF Compatibility

Run Levels

When to Use Run Levels or Milestones

Determining a System's Run Level

/etc/inittab File

What Happens When the System Is Brought to Run Level 3

12.  Managing Services (Tasks)


Introduction to SMF

SMF provides an infrastructure that augments the traditional UNIX start-up scripts, init run levels, and configuration files. SMF provides the following functions:

Dependency statements define the relationships between services. These relationships can be used to provide precise fault containment by restarting only those services that are directly affected by a fault, rather than restarting all of the services. Another advantage of dependency statements is that the statements allow for scalable and reproducible initialization processes. In addition, by defining all of the dependencies, you can take advantage of modern, highly parallel machines, because all independent services can be started in parallel.

SMF defines a set of actions that can be invoked on a service by an administrator. These actions include enable, disable, refresh, restart, and maintain. Each service is managed by a service restarter which carries out the administrative actions. In general, the restarters carry out actions by executing methods for a service. Methods for each service are defined in the service configuration repository. These methods allow the restarter to move the service from one state to another state.

The service configuration repository provides a per-service snapshot at the time that each service is successfully started so that fallback is possible. In addition, the repository provides a consistent and persistent way to enable or disable a service, as well as a consistent view of service state. This capability helps you debug service configuration problems.