HP 3PAR StoreServ 7400 2-node HP 3PAR Command Line Interface Administrator& - Page 126
Managing Tasks, Overview, Task Manager, Task IDs, Task Manager Commands
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13 Managing Tasks Overview Some system operations with long running times can be managed as system tasks and initiated at scheduled times. The larger your system, the longer some CLI command operations take to complete. With the task manager you can pause, cancel, or remove tasks running on the system. The System Scheduler allows you to create, modify, and remove schedules for initiating tasks. The group of CLI commands that can be managed with the task manager CLI commands is different from the group of CLI commands that can be scheduled with System Scheduler commands. For example, the tunevv command can be managed as a task but the tunevv command cannot be scheduled with System Scheduler commands. • See Table 10 (page 126) for a complete list of the task manager commands. • See Table 11 (page 130) for a complete list of the commands that can be managed with the task manager commands. • See Table 12 (page 137) for a complete list of the System Scheduler commands. • See Table 13 (page 137) for a complete list of the commands that can be scheduled with the System Scheduler commands. Task Manager With the task manager CLI commands, you can display, cancel, or remove tasks running on the system. Tasks are created in one of two ways: • by a user or script issuing certain HP 3PAR CLI commands, such as the tunevv command. • by the system initiating certain automated or scheduled processes, such as the periodic resynchronization of remote copy volumes groups. Task IDs Each task is identified by a task ID. When a task is started with the HP 3PAR CLI, the system displays the task ID as part of the command output. For example, when you issue the tunevv command with the HP 3PAR CLI, a task is started in order to track the progress of the tunevv operation. The task ID is indicated in the output for the tunevv command. In the following example, Task454 is started as part of the tunevv operation. cli% tunevv usr_cpg testcpg testvol Task 454 started Use the CLI showtask command to display the task IDs. For information about displaying task IDs in the system, see "Displaying Task Information" (page 127). Task Manager Commands You can use the task manager commands to display, cancel, and remove tasks running on the system. See Table 10 (page 126) for a list of the HP 3PAR CLI task manager commands. Table 10 Task Manager Commands Command canceltask removetask Description Cancel one or more tasks. Remove information about one or more tasks and their details. 126 Managing Tasks