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What the Web service and daemon are

The SnapDrive for UNIX Web service provides a uniform interface for all the NetApp SnapManager and third-party products to integrate seamlessly with SnapDrive for UNIX.

Various NetApp SnapManager products use the command-line interface (CLI) to communicate with SnapDrive for UNIX. Using the CLI puts a constraint on the performance and manageability of SnapManager and SnapDrive for UNIX. When you use the SnapDrive for UNIX daemon, all the commands work as a unique process. Daemon service does not affect the way SnapDrive for UNIX commands are used.

The SnapDrive for UNIX Web service allows third-party applications to integrate with SnapDrive for UNIX seamlessly. They interact with SnapDrive for UNIX using APIs.

When you start the SnapDrive for UNIX daemon, it first checks whether the daemon is running. If the daemon is not running, it starts the daemon. If the daemon is already running and you try to start it, SnapDrive for UNIX displays this message: snapdrive daemon is already running

You can check the status of the daemon to see whether it is running or not. You should check the status before deciding to start the daemon. If a user other than root tries to check the status, SnapDrive for UNIX checks the credentials of a user and displays this message: snapdrive daemon status can be seen only by root user

When you try to stop the daemon, SnapDrive for UNIX checks your credentials. If you are a user other than root, SnapDrive for UNIX displays this message: snapdrive daemon can be stopped only by root user

After you stop the daemon, you must restart it for any changes to the configuration file or any module to take effect. If a user other than root tries to restart, SnapDrive for UNIX checks the credentials of a user and displays this message: snapdrive daemon can be restarted only by root user