The svcrescuestate command is a service script used to manage the operational state of a PowerStore node. When a node is placed in service mode (also known as rescue mode) for maintenance, it is isolated from the cluster. To return the node to its normal operational state and allow it to rejoin the cluster, the service mode flag must be removed. The command svcrescuestate clear is specifically designed to clear this flag, which then prompts the node to reboot into normal mode.

A. svcrescuestate normal: The term "normal" describes the target state but is not a valid parameter for the svcrescuestate command to initiate an action.

C. svcrescuestate exit: exit is not a valid argument for this script. It is a standard command for terminating a shell session, not for changing a node's operational state.

D. svcrescuestate quit: Similar to exit, quit is not a recognized parameter for the svcrescuestate command and is typically used to leave interactive applications.

1. Dell PowerStore: Command Line Interface Reference Guide (for PowerStoreOS 3.0)

Page 211, Section: "Service scripts": This section explicitly lists the valid parameters for the svcrescuestate command. It documents svcrescuestate clear as the command to "Clears the rescue state of the node," which is the required action to return to normal mode. It also lists set and list as the other valid parameters.

2. Dell PowerStore: Service Concepts Guide (for PowerStoreOS 3.0)

Page 41, Section: "Service mode": This guide describes the concept of service mode. It explains that after completing service procedures, "the node must be returned to normal mode." The procedure involves clearing the service state, which is accomplished using the svcrescuestate clear command before rebooting the node.