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Instant Capacity on Demand (iCOD) User's Guide for versions B.05.x > Appendix A Offline Configuration and Activation of Processors

Configuring and Activating Processors for the L-Class and N-Class Servers

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This section illustrates the procedure for configuring a processor on both the L-Class and N-Class servers. The BCH interface is practically identical for both classes of servers.

For additional information on the L- and N-Class boot sequence, and other operating instructions, please consult the Server Boot Up section in the Operating Instructions at: docs.hp.com/hpux/hw (for the appropriate class of server — for example, N-Class).

NOTE: Booting a system to the HP-UX prompt from the BCH main menu can be time consuming, depending on your software and hardware configuration.

An N-Class system can contain up to 8 processors. Configure these processors in the following order:

  • 1

  • 3

  • 5

  • 7

  • 0

  • 2

  • 4

  • 6

Always deconfigure processors in the reverse order.

An L-Class system can contain up to 4 processors. Configure these processors in the following order:

  • 0

  • 3

  • 1

  • 2

Always deconfigure processors in the reverse order.

  1. Reboot the system from the system console.

  2. Access the BCH interface. If autoboot is disabled, the system accesses the BCH by default; otherwise, interrupt the boot process when prompted by pressing any key.

    ---- Main Menu -------------------------------------------------------------
         Command Description
         ------- -----------
         BOot [PRI|ALT|<path>] Boot from specified path
         PAth [PRI|ALT|CON|KEY] [<path>] Display or modify a path
         SEArch [DIsplay|IPL] [<path>] Search for boot devices

         COnfiguration menu Displays or sets boot values
         INformation menu Displays hardware information
         SERvice menu Displays service commands
         DeBug menu Displays debug commands
         MFG menu Displays manufacturing commands

         DIsplay Redisplay the current menu
         HElp [<menu>|<command>] Display help for menu or command
         RESET Restart the system
    ----Main Menu: Enter command or menu >
  3. Enter the IN PR command to display the processor information:

    Main Menu: Enter command or menu > IN PR

        Model: 9000/800/L2000-44

    PROCESSOR INFORMATION

                           HVERSION SVERSION Processor
      Processor Speed Model Model/Op CVERSION State
      --------- -------- -------- -------- -------- -------------
          0      440  MHz   0x05c4    0x0491    2.  0    Active
          3      440  MHz   0x05c4    0x0491    2.  0    Stopped:Deconfigured

      Central Bus Speed (in MHz) : 82
      Software ID (dec) : 0
      Software ID (hex) : 0x00000000
      Software Capability : 0x01100000f0

    Main Menu: Enter command or menu >
    ---- Main Menu -------------------------------------------------------------
         Command Description
         ------- -----------
         BOot [PRI|ALT|<path>] Boot from specified path
         PAth [PRI|ALT|CON|KEY] [<path>] Display or modify a path
         SEArch [DIsplay|IPL] [<path>] Search for boot devices

         COnfiguration menu Displays or sets boot values
         INformation menu Displays hardware information
         SERvice menu Displays service commands
         DeBug menu Displays debug commands
         MFG menu Displays manufacturing commands

         DIsplay Redisplay the current menu
         HElp [<menu>|<command>] Display help for menu or command
         RESET Restart the system
    ----Main Menu: Enter command or menu >

    In the above example two processors are on the system. Processor 0 is configured and processor 3 is deconfigured.

  4. Enter the CO command to enter the configuration menu:

    Main Menu: Enter command or menu > CO

    ---- Configuration Menu ------------------------------------------------------

         Command Description
         ------- -----------
         AUto [BOot|SEArch|STart] [ON|OFF] Display or set specified flag
         BootID [<proc>] [<bootid>] Display or set Boot Identifier
         BootINfo Display boot-related information
         BootTimer [0 - 200] Seconds allowed for boot attempt
         CPUconfig [<proc>] [ON|OFF] Config/Deconfig processor
         DEfault Set the system to predefined values
         FAn [HI|NORmal] Display or change fan speed
         FastBoot [ON|OFF] Display or set boot tests execution
         PAth [PRI|ALT] [<path>] Display or modify a path
         SEArch [DIsplay|IPL] [<path>] Search for boot devices
         TIme [c:y:m:d:h:m:[s]] Read or set the real time clock in GMT

         BOot [PRI|ALT|<path>] Boot from specified path
         DIsplay Redisplay the current menu
         HElp [<command>] Display help for specified command
         RESET Restart the system
         MAin Return to Main Menu
    ----
    Configuration Menu: Enter command >
  5. Use the CPU <processor number> ON command to configure the processor. Repeat this step until all processors that are targeted for activation are configured:

    Configuration Menu: Enter command > CPU 3 ON

       Changes will not take effect until next hard boot

    PROCESSOR CONFIGURATION INFORMATION

      Processor hpa Configuration Status
      --------- ------------------ ----------------------------------------
          3 0xfffffffffffa6000 Deconfigured, flagged to be reconfigured

    Configuration Menu: Enter command >
  6. Use the CPU command to display processor information and verify that the processors that are targeted for activation are flagged to be configured:


    Configuration Menu: Enter command > CPU

    PROCESSOR CONFIGURATION INFORMATION

      Processor hpa Configuration Status
      --------- ------------------ ----------------------------------------
          0 0xfffffffffffa0000 Configured, not flagged to be deconfigured

          3 0xfffffffffffa6000 Deconfigured, flagged to be reconfigured

    Configuration Menu: Enter command >



  7. Reset the system to configure the processors. Enter the command RESET and boot the system to the HP-UX prompt:


    Configuration Menu: Enter command > RESET



  8. At the system prompt, activate the configured processors with the icod_modify command (see “Increasing Processor Capacity”).

  9. Verify from HP-UX that the processors are available with the ioscan
    HP-UX command. Note the information provided by ioscan on the number of active processors is different from that reported during configuration.


    root@guinness> ioscan -fk|grep -i proc
    processor 0 160 processor CLAIMED PROCESSOR Processor
    processor 1 166 processor CLAIMED PROCESSOR Processor
    root@guinness>


This completes the processor offline configuration and activation process for the HP-UX N- and L-Class servers.

NOTE:

Deconfiguring Processors. Deconfiguring a processor is similar to configuring a processor, except the deconfiguration order is the reverse of the configuration order. Also, the command CPU # OFF is used for deconfiguring processors.

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