nPartition Administrator's Guide

8. Reboot the nPartition to use the cells' new attribute values.
On cell-based servers based on the HP sx1000 chipset or HP sx2000 chipset, if you have
changed cell local memory (CLM) values then you must reboot the nPartition whose CLM
values have changed. If you also are changing use-on-next-boot values then also use the
following guidelines.
If you have changed any cell use-on-next-boot settings for the nPartition then reboot the
nPartition in either of two ways:
• Perform a standard reboot (HP-UX: shutdown -r; Windows: shutdown /r; Linux:
shutdown -r time; OpenVMS: @SYS$SYSTEM:SHUTDOWN with an automatic system
reboot).
If you have only changed use-on-next-boot values from y to n, then perform a reboot.
Any cells set to not be used will still be assigned to the nPartition but will not be used
(will not rendezvous) in the nPartition.
• Perform a reboot for reconfig (HP-UX: shutdown -R; Windows: shutdown /r; Linux:
shutdown -r time; OpenVMS: @SYS$SYSTEM:SHUTDOWN with an automatic system
reboot).
If you have changed any use-on-next-boot values from n (do not use on next boot) to
y (use the cell on next boot), then you must perform a reboot for reconfig to allow the
currently inactive cells to reboot and rendezvous when the nPartition reboots.
Setting nPartition Core Cell Choices
You can set the core cell choices for an nPartition by using any one of the following procedures:
• “Setting Core Cell Choices (BCH Menu)” (page 196)
• “Setting Core Cell Choices (EFI Shell)” (page 197)
• “Setting Core Cell Choices (nPartition Commands)” (page 197)
• “Setting Core Cell Choices (Partition Manager)” (page 198)
The core cell choice settings for an nPartition are optional preferences that establish which cells
in the nPartition are preferred to be selected as the core cell for the nPartition.
NOTE: You do not need to specify core cell choices for a valid core cell to be chosen.
By default on four-cell and HP Superdome servers, system firmware selects the lowest numbered
eligible cell to be the active core cell for the nPartition.
By default on two-cell servers, cell 1 is selected as the core cell.
Procedure 6-24 Setting Core Cell Choices (BCH Menu)
From the BCH Menu, use the Configuration menu, COC command to configure core cell choices
for the nPartition. The BCH Menu is available only on HP 9000 systems.
1. Access the BCH Main Menu for the nPartition whose core cell choices you want to configure.
Login to the service processor (MP or GSP) and enter CO to access the Console list. Select
the nPartition console. When accessing the console, confirm that you are at the BCH Main
Menu (the Main Menu: Enter command or menu> prompt). If at a BCH menu other
than the Main Menu, then enter MA to return to the BCH Main Menu.
2. Enter CO to access the BCH Configuration Menu.
3. Enter the COC command to list or set the core cell choices for the local nPartition.
Entering COC with no arguments lists all core cell choice preferences.
The COC command syntax is:
COC choice cell
196 Creating and Configuring nPartitions