HP NetRAID-4M Controller - Manual (Page 40)

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Command Line Interface User’s Guide
You can set a maximum pause of 150 seconds for all I/O activity on
the currently opened controller.
Note: A controller cannot be paused if a container task is
running on the controller.
Note: If you need to pause the system for more than a
minute, then network timeouts might occur. However,
network timeouts are usually preferable to rebooting. If you
cannot perform the hardware reconfiguration changes in
less than 2 1/2 minutes, it is recommended that you shut
down the system. See the Command Line Interface Reference
Guide for more guidelines.
The CLI allows you to do the following:
■ Display controller tasks
■ Pause a controller’s I/O
■ Resume a controller’s I/O
To display the tasks running on a controller, use the task list
command, as in the following example. In the example, no tasks are
running on the controller, so it is valid to pause I/O on the
controller.
HPN0> task list
Executing: task list
Controller Tasks
TaskId Function Done% Container State Specific1 Specific2
------ -------- ------- --------- ----- --------- ---------
No tasks currently running on controller
To pause a controller’s I/O, use the controller pause_io
command, as in the following example. In the example, the
controller is paused for 100 seconds.
HPN0> controller pause_io 100
Executing: controller pause_io 100