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nPartition Administrator's Guide > Chapter 7 Managing Hardware Resources

Configuring and Deconfiguring Cells

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You can configure and deconfigure cells by using any one of the following procedures:

You can deconfigure (make inactive) a cell that is assigned to an nPartition by setting its use-on-next-boot value to "n" (do not use). This causes the cell to remain assigned to the nPartition, but the cell will be inactive the next time its nPartition boots, meaning the cell hardware resources will not be used.

Whenever you configure or deconfigure cells, you must reboot the corresponding nPartition for the configuration change to take effect.

NOTE: Configuring and deconfiguring cells may be restricted based on any Instant Capacity contract for the server complex.

Procedure 7-8 Configuring and Deconfiguring Cells (BCH Menu)

From the BCH Configuration Menu use the CELLCONFIG command to configure and deconfigure cells assigned to the local nPartition. The BCH Menu is available only on HP 9000 systems.

  1. Access the BCH Main Menu for the nPartition whose cells you want to configure or deconfigure.

    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 Configuration Menu.

  3. From the BCH Configuration menu, use the CELLCONFIG command to list or set the use-on-next-boot value for each cell.

    • To list the use-on-next-boot values for all cells in the nPartition, issue the CELLCONFIG command with no arguments.

    • To change a cell use-on-next-boot value, issue the following command:

      CELLCONFIG cell [ON|OFF]

      where cell is the cell number, ON sets the cell use-on-next-boot value to "y" (yes, do use the cell), or OFF sets the cell use-on-next-boot value to "n" (no, do not user the cell).

      A cell that boots with a "y" (ON) use-on-next-boot value is permitted to rendezvous and join its nPartition, thus becoming an active cell whose resources are used.

      A cell that boots with a "n" (OFF) use-on-next-boot value does not rendezvous and thus becomes an inactive cell whose resources are not used by its nPartition, although the cell still is assigned to its nPartition.

  4. Reboot the nPartition to use the cells' new use-on-next-boot settings.

    If you have changed any cell use-on-next-boot settings for the nPartition then reboot the nPartition in either of two ways:

    • Use the REBOOT command at the BCH interface to perform a reboot.

      If you have only changed cell configurations from ON to OFF, then perform a reboot using the REBOOT command. 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.

    • Use the RECONFIGRESET command at the BCH interface to put the nPartition in the shutdown for reconfig state, then use the BO command at the service processor Command menu to boot the nPartition.

      If you have changed any cell from OFF ("n", do not use on next boot) to ON ("y", use the cell on next boot), then you must perform these two tasks; this resets and reconfigures the nPartition and boots it.

  5. Exit the console and service processor interfaces if finished using them.

    To exit the BCH environment type ^B (Control-B); this exits the nPartition console and returns to the service processor Main Menu. To exit the service processor, type X at the Main Menu.

Procedure 7-9 Configuring and Deconfiguring Cells (EFI Shell)

From the EFI Shell environment, use the use the cellconfig command to configure or deconfigure cells in the local nPartition. The EFI Shell is available only on HP Integrity systems.

NOTE: Use of the cellconfig command at the EFI Shell is restricted. See the help cellconfig command for details.
  1. Access the EFI Shell environment for the nPartition whose cells you want to configure or deconfigure.

    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 EFI Boot Manager menu (the main EFI menu). If at another EFI menu, select the Exit option from the sub-menus until you return to the screen with the EFI Boot Manager heading.

    From the EFI Boot Manager menu, select the EFI Shell menu option to access the EFI Shell environment.

  2. Use the cellconfig command to list or set the configuration setting (the use-on-next-boot value) for each cell.

    • To list the use-on-next-boot values for all cells in the nPartition, issue the cellconfig command with no arguments.

    • To change a cell use-on-next-boot value, issue the following command:

      cellconfig cell [on|off]

      where cell is the cell number, on sets the cell use-on-next-boot value to "y" (yes, do use the cell), or off sets the cell use-on-next-boot value to "n" (no, do not user the cell).

      A cell that boots with a "y" (on) use-on-next-boot value is permitted to rendezvous and join its nPartition, thus becoming an active cell whose resources are used.

      A cell that boots with a "n" (off) use-on-next-boot value does not rendezvous and thus becomes an inactive cell whose resources are not used by its nPartition, although the cell still is assigned to its nPartition.

  3. Reboot the nPartition to use the cells' new configuration settings.

    If you have changed any cell use-on-next-boot settings for the nPartition then reboot the nPartition in either of two ways:

    • Use the reset command at the EFI Shell to perform a reboot.

      If you have only changed cell configurations from on to off, then perform a reboot using the reset command. 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.

    • Use the reconfigreset command at the EFI Shell to put the nPartition in the shutdown for reconfig state, then use the BO command at the service processor Command Menu to boot the nPartition.

      If you have changed any cell from off ("n", do not use on next boot) to on ("y", use the cell on next boot), then you must perform these two tasks; this resets and reconfigures the nPartition and boots it.

  4. Exit the console and service processor interfaces if finished using them.

    To exit the EFI environment type ^B (Control-B); this exits the nPartition console and returns to the service processor Main Menu. To exit the service processor, type X at the Main Menu.

Procedure 7-10 Configuring and Deconfiguring Cells (nPartition Commands)

From the command line, use the parmodify -p# -m#... command to configure or deconfigure a cell by setting its use-on-next-boot attribute value. You also can use the parstatus -V -c# command to list attribute details for a specific cell (-c# where # is the cell number).

NOTE: You can remotely perform this task using remote administration options supported by the Enhanced nPartition Commands or Partition Manager Version 2.0. Remote administration is supported by the Partition Manager Tools->Switch Complexes-> action and by the nPartition command -u... -h... options or -g... -h... options.

For details see “Tools for Managing Hardware”.

  1. Login to a system with the nPartition commands installed.

    If using remote administration features to configure and deconfigure cells, you can login to any system with Enhanced nPartition Commands installed.

  2. To list current cell attribute settings, use the parstatus -C command to list the use-on-next-boot values for all cells, or use the parstatus -V -c# command to list all attribute values for a specific cell (-c# where # is the cell number)

  3. To modify cell attribute values, use the parmodify -p# -m#... command and specify the new cell attributes as part of the -m option. The -m... option differs slightly for the nPartition command releases.

    You must specify both the nPartition (-p# where # is the nPartition number) and the cell (-m#... where # is the cell number).

    See “Setting Cell Attributes” for details on modifying cell attributes, including the use-on-next-boot value that determines whether a cell is configured or deconfigured during the nPartition boot process.

  4. Reboot the nPartition to use the cells' new configuration (the new use-on-next-boot values).

    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.

Procedure 7-11 Configuring and Deconfiguring Cells (Partition Manager)

You can set configure and deconfigure cell by using Partition Manager to set each cell use-on-next-boot value.

When using Partition Manager Version 1.0, select the nPartition to which the cell belongs, select the Partition->Modify Partition action, Change Cell Attributes tab, select the cell(s), and click Modify Cell(s).

When using Partition Manager Version 2.0, select the nPartition to which the cell belongs, select the nPartition->Modify nPartition action, and then configure attributes using the Set Cell Options tab.

  1. Access Partition Manager.

    For details on accessing Partition Manager or other tools, see “Tools for Managing Hardware”.

  2. Select the nPartition whose cells you want to configure or deconfigure.

  3. Initiate the nPartition modify action.

    If using Partition Manager Version 1.0, the Partition->Modify Partition action.

    If using Partition Manager Version 2.0, select the nPartition->Modify nPartition action.

  4. Access the Partition Manager section(s) for configuring cell attributes.

    From Partition Manager Version 1.0, select the Change Cell Attributes tab, then select the cell and click the Modify Cell button. This enables you to configure the use-on-next-boot value for the selected cell.

    From Partition Manager Version 2.0, use the Set Cell Options tab to configure cell use-on-next-boot values.

  5. After changing attribute values for all the cells you plan to modify, click the OK button.

  6. Review all information presented in the Notes and Warnings, the Summary of Changes, and the HA Checks tabs.

  7. Either cancel or proceed with the cell attribute changes.

    Click the Cancel button to cancel the changes.

    To proceed with the cell use-on-next-boot changes, click the Finish button or click the OK button.

  8. Reboot the nPartition to use the cells' new attribute values.

    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.

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