Reset controller

The reset controller command resets a controller, and is disruptive to I/O operations.

Supported Arrays

This command applies to an individual DE2000H, DE4000H, DE4000F, DE6000H, or DE6000F storage array.

Roles

To execute this command on an storage array, you must have the Storage Admin role.

Context

Attention: When you reset a controller, the controller is removed from the data path and is not available for I/O operations until the reset operation is complete. If a host is using volumes that are owned by the controller being reset, the I/O directed to the controller is rejected. Before resetting the controller, either make sure that the volumes that are owned by the controller are not in use or make sure that a multi-path driver is installed on all of the hosts that use these volumes.
CAUTION:
If you use in-band management, you cannot control which controller any command is sent to, and this command can have unexpected results.

Syntax

reset controller [(a|b)]

Parameters

Parameter Description
controller The controller that you want to reset. Valid controller identifiers are a or b , where a is the controller in slot A , and b is the controller in slot B . Enclose the controller identifier in square brackets ([ ]). If you do not specify a controller, the storage management software returns a syntax error.

Notes

The controller that receives the reset controller command resets the controller specified. For example, if the reset controller command is sent to controller A to request a reset of controller A , then controller A reboots itself by doing a soft reboot. If the reset controller command is sent to controller A to request a reset of controller B , then controller A holds controller B in reset and then releases controller B from reset, which is a hard reboot. A soft reboot in some products only resets the IOC chip. A hard reboot resets both the IOC and the expander chips in the controller.

Parent topic: Controller commands