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SPARC M8 and SPARC M7 Servers Administration Guide

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Updated: September 2017

Unassign DCUs From a Host

This task uses PDomain_0, HOST0, DCU0, and DCU1 as examples. You must have the admin role (a) and the reset role (r) to complete this task.

  1. Log in to Oracle ILOM.

    See Log In to Oracle ILOM (CLI).

  2. Determine the current assignment of the DCU that you want to unassign.

    See Determine the Current Assignment of DCUs.

  3. Start the host console for the host from which you want to unassign a DCU.

    Starting the host console enables you to view any errors or faults that might prevent you from unassigning the DCU from the host.

    See Start the Host Console.

  4. Stop the host to which the DCU is currently assigned.
    -> stop /Servers/PDomains/PDomain_0/HOST
    Are you sure you want to stop /Servers/PDomains/PDomain_0/HOST (y/n) y
    Stopping /Servers/PDomains/PDomain_0/HOST
  5. Unassign the DCU from the host.
    • To unassign all of the DCUs from a host, type:
      -> set /Servers/PDomains/PDomain_1/HOST dcus_assigned=""
      Set 'dcus_assigned' to ''
    • To unassign a specific DCU from a host, type:

      This step assumes that DCU0 and DCU1 are currently assigned to HOST0. In effect, this step unassigns DCU1 from HOST0.

      -> set /Servers/PDomains/PDomain_0/HOST dcus_assigned="/SYS/DCU0"
      Set 'dcus_assigned' to '/SYS/DCU0'

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