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nPartition Administrator's Guide > Chapter 7 Managing Hardware Resources

Task Summaries for Hardware Resource Management

 

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  Table of Contents

Table 7-1 describes the main hardware management tasks and provides brief summaries and references for detailed procedures.

You can perform the hardware tasks in Table 7-1 “Hardware Management Task Summaries” using various tools, including the service processor (MP or GSP), Boot Console Handler (BCH, available only on PA-RISC servers), Extensible Firmware Interface (EFI, available only on HP Integrity servers), nPartition commands, or Partition Manager ( /opt/parmgr/bin/parmgr).

See “Tools for Managing Hardware” for details.

Table 7-1 Hardware Management Task Summaries

TaskSummary
“Powering Server Cabinets On and Off”
  • CAUTION: Before powering off system hardware, you first must check whether it is being used and also inspect the hardware.
  • Cabinet Power Switch: use the 48-volt power switch on the front of the cabinet.

  • Service Processor (MP or GSP): PE command.

See “Powering Server Cabinets On and Off”.

“Powering Cells and I/O Chassis On and Off”
  • NOTE: Powering on a cell also powers on any I/O chassis attached to the cell, and powering off a cell also powers off any I/O chassis attached to the cell. Powering on or off an I/O chassis connected to a powered-on cell causes the cell to reset if the cell located and mapped the I/O chassis during its cell boot process.
  • Service Processor (MP or GSP): PE command.

  • nPartition Commands: frupower command, and specify -o or -f and a cell or I/O chassis: -o option to turn power on, -f option to turn power off, -c# for a cell (where # is the cell number), -i #/#/# for an I/O chassis (where #/#/# is the cabinet/bay/chassis).

  • Partition Manager:

    • Version 1.0 — Select an inactive cell or I/O chassis, and use the Cell->Power Off Cell or I/O->Power Off I/O Chassis action (or a similar "Power On..." action).

    • Version 2.0 — Select an inactive cell or I/O chassis, and use the Cell->Power Off Cell or I/O->Power Off I/O Chassis action (or a similar "Power On..." action).

See “Powering Cells and I/O Chassis On and Off”.

“Turning Attention Indicators (LEDs) On and Off”
  • nPartition Commands: fruled command and specify -o or -f and a cabinet, cell, or I/O chassis: -o option to blink the LED, -f option to turn off the LED, -b# for a cabinet (where # is the cabinet number), -c# for a cell (where # is the cell number), -i #/#/# for an I/O chassis (where #/#/# is the cabinet/bay/chassis)

    HP-UX B.11.11 supports the rad command for controlling PCI card slot attention indicators and other tasks.

    HP-UX B.11.23 and HP-UX B.11.31 support the olrad command for controlling PCI card slot attention indicators and other tasks.

  • Partition Manager:

    • Version 1.0 — Select a cell or I/O chassis, and use the Cell->Light Cell LED or I/O->Light I/O Chassis LED action. To turn off all LEDs use the Complex->Clear All LEDs action.

    • Version 2.0 — Select a cell or I/O chassis, and use the Cell->Turn On Cell LED or I/O->Turn On Chassis LED action (or a similar "Turn Off..." action). To turn off all LEDs use the Complex->Clear All LEDs action.

See “Turning Attention Indicators (LEDs) On and Off”.

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

    To make an inactive cell active (configured), its use-on-next-boot value must be "y" and its nPartition must perform a reboot for reconfig (shutdown -R). To make an active cell inactive (deconfigured) its use-on-next-boot value must be "n" and its nPartition must perform a normal reboot (shutdown -r).

  • BCH Menu: Configuration Menu, CELLCONFIG command.

  • EFI Shell: cellconfig command; use of this command is restricted.

  • nPartition Commands: parmodify -p# -m#... command to modify attributes of the specified cell (-m#..., where # is the cell number) for the specified nPartition (-p#, where # is the nPartition number).

    • Original nPartition Commands — For the cell modify (-m) option, specify:

      -m#::y: to configure the cell to be used the next time the nPartition boots, or -m#::n: to deconfigure the cell.

    • Enhanced nPartition Commands — For the cell modify (-m) option, specify:

      -m#::y::clm to configure the cell to be used the next time the nPartition boots, or -m#::n::clm to deconfigure the cell. The clm parameter specifies the amount of cell local memory.

  • 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).

    • Version 2.0 — Select the nPartition to which the cell belongs, select the nPartition->Modify nPartition action, Set Cell Options tab, and configure the use-on-next-boot value.

See “Configuring and Deconfiguring Cells”.

“Configuring and Deconfiguring Processors”

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

    After a processor configuration is changed the nPartition in which the processor resides must be rebooted to use the new configuration.

  • BCH Menu: Configuration Menu, CPUCONFIG command.

    CPUCONFIG cell cpu OFF deconfigures the specified processor (cpu) on the specified cell (cell).

    CPUCONFIG cell cpu ON configures the processor on the cell.

  • EFI Shell: cpuconfig command.

    cpuconfig cell cpu off deconfigures the specified processor (cpu) on the specified cell (cell).

    cpuconfig cell cpu on configures the processor on the cell.

See “Configuring and Deconfiguring Processors”.

“Enabling and Disabling Hyper-Threading on Dual-Core Intel Itanium 2 Processors”

  • CAUTION: Some operating systems do not support Hyper-Threading. Problems can occur when running an OS that does not support Hyper-Threading on an nPartition that has Hyper-Threading enabled.

  • NOTE: You must reset an nPartition when changing its Hyper-Threading status. Hyper-Threading will not be enabled or disabled until after the nPartition is reset.
  • EFI Shell: cpuconfig threads command.

    cpuconfig threads on to schedule Hyper-Threading to be enabled after the nPartition is reset.

    cpuconfig threads off to schedule Hyper-Threading to be disabled after the nPartition is reset.

  • HP-UX: setboot command.

    setboot -m on to schedule Hyper-Threading to be enabled after the nPartition is reset.

    setboot -m off to schedule Hyper-Threading to be disabled after the nPartition is reset.

  • Enhanced nPartition Commands: parmodify -pn -T [y|n] command to enable (-T y) or disable (-T n) Hyper-Threading for the specified nPartition (-pn, where n is the nPartition number) the next time the nPartition is reset.

  • Partition Manager: When performing the Create nPartition or Modify nPartition tasks, select or deselect the Enable Hyper-Threading check box on the Configure Memory tab to configure the Hyper-Threading status the next time an nPartition is reset.

See “Enabling and Disabling Hyper-Threading on Dual-Core Intel Itanium 2 Processors”.

“Configuring and Deconfiguring Memory (DIMMs)”

  • NOTE: DIMMs operate either in ranks of four or echelons of two, depending on the memory architecture of the server. When you deallocate a DIMM, all other DIMMs in the rank or echelon also will not be used the next time the nPartition boots.

    Each rank or echelon is numbered (0, 1, 2, and so on up to hexadecimal number F as needed). The DIMMs in the rank or echelon are lettered (A to D). For example, rank 0 includes DIMMs 0A, 0B, 0C, and 0D; echelon 1 has DIMMs 1A and 1B.

    After the DIMM configuration is changed the nPartition in which it resides must be rebooted to use the new configuration.

  • BCH Menu: Service Menu, DIMMDEALLOC command.

    DIMMDEALLOC cell dimm OFF deconfigures the specified DIMM (dimm) on the cell (cell) indicated.

    DIMMDEALLOC cell dimm ON configures the DIMM on the cell.

    Use DIMMDEALLOC cell to display the DIMM configuration for the specified cell.

  • EFI Shell: dimmconfig command.

    dimmconfig cell dimm OFF deconfigures the specified DIMM (dimm) on the cell (cell) indicated.

    dimmconfig cell dimm ON configures the DIMM on the cell.

    Use dimmconfig cell to display the DIMM configuration for the specified cell.

See “Configuring and Deconfiguring Memory (DIMMs)”.

“Complex Health Analysis of a Server”

  • Complex health analysis provides both an evaluation of the complex hardware and an evaluation its nPartition configurations.

  • Partition Manager: Use the Complex->Analyze Complex Health action.

See “Complex Health Analysis of a Server”.

 

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