Enable Hardware Components

How to use the xtcli command to enable physical system components.

If links, nodes, or Cray ASICs that have been disabled are later fixed, the system administrator can add them back to the system with the xtcli enable command.

The xtcli enable command has the following form, where idlist is a comma-separated list of components (in cname format) for the system to recognize.

xtcli enable [{-t type [-a] } | -n] [-f] idlist

By default, when disabling a component, this command takes into consideration the hierarchy of components, performs the action upon the identified component(s) and cascades that action to any subcomponent of the identified component(s), unless the -n option is specified.

Important: The -n option with the xtcli disable command must be used carefully because this may create invalid system state configurations.

The state of empty components does not change when using the xtcli enable command, unless the force option (-f) is used.

The state of off means that a component is present on the system. If the component is a blade controller, node, or ASIC, then this will also mean that the component is powered off. If the administrator disables a component, the state shown becomes disabled. When the xtcli enable command is used to enable that component for use once again, its state switches from disabled to off. In the same manner, enabling an empty component means that its state switches from empty to off.

For more information, see the xtcli(8) man page.