Assign Or Unassign DCUs To a PDomain Host

Before You Begin

• The Admin (a) role is required to configure Host DCU assignments.

• Prior to assigning and unassigning DCUs to a Host, you must ensure that the Host on the assigned DCU is powered-off.

  Note:

  Some servers support the configuration of non-Bounded PDomain (Expandable is set to True) and Bounded PDomain (Expandable is set to False). For further details about non-Bounded or Bounded PDomains, see the information in the administration guide provided with your server.

• The Reset and Host Control (r) role is required to modify the host power state.

To assign or unassign DCUs, follow these steps:

1. Determine the current DCU assignments for hosts by performing one of the following:

   • Web: Click System Management > Domains.

     In the Host Configuration table, view the Assigned DCU column and, if supported, the Expandable column.

     For further details, click the More details ... link on the Domains page.

   • CLI: Type the following command string:

     show Servers/PDomains/PDomain_n/host

     View the dcus_assigned = property under the host target.

2. Power-down the PDomain host on the assigned DCU by performing one of the following:

   • Web: Click System Management > Power Control page, then click the More details... link on the Power Control page for further instructions.

   • CLI: Type the following command string:

     stop /Servers/PDomains/PDomain_n/host

3. To assign or unassign DCU assignments to the powered-off host, perform one of the following:

   • Web: In the System Management > Domains page, click the More details... link for instructions.

   • CLI: Perform one of the following

     • To assign a DCU, type the following command string:

       set /Servers/PDomains/PDomain_n/host dcus_assigned= [/SYS/DCUn]

       To verify the status of the DCU assignment, type: show /Servers/PDomains/PDomain_n/host

       View the operation_in_progress = property.

     • To unassign a DCU, type the following command string:

       set /Servers/PDomains/PDomain_n/host dcus_assigned= [/SYS/DCUn]

       To verify that the specified DCU is unassigned, type:show /Servers/PDomains/PDomain_n/host

       View the dcus_available = property under the host target.

4. Start the PDomain host that was stopped in Step 2, for instance:

   • Web: Click the More Details ... link for instructions.

   • CLI: Type the following command string:

     start /Servers/PDomains/PDomain_n/host