Sun Cluster System Administration Guide for Solaris OS

ProcedureSPARC: How to Enter the OpenBoot PROM (OBP) on a Node

Use this procedure if you need to configure or change OpenBoot PROM settings.

  1. Connect to the terminal concentrator port.

    # telnet tc_name tc_port_number

    Specifies the name of the terminal concentrator.


    Specifies the port number on the terminal concentrator. Port numbers are configuration dependent. Typically, ports 2 and 3 (5002 and 5003) are used for the first cluster installed at a site.

  2. Shut down the cluster node gracefully by using the scswitch(1M) command to evacuate any resource or disk device groups and then shutdown.

    # scswitch -S -h node[,...]
    # shutdown -g0 -y -i0

    Caution – Caution –

    Do not use send brk on a cluster console to shut down a cluster node.

  3. Execute the OBP commands.