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  9. 4.4.3 Reducing the Power Consumption of Hardware That is Unused or Has a Low Utilization

Contents

  1. Preface
  2. Chapter 1 Understanding an Overview of the SPARC M12/M10
    1.  1.1 Basics of the SPARC M12/M10
    2. Click 1.2 Basics of the XSCF Firmware
    3. Click 1.3 Network Configuration
    4.  1.4 Basics of Hypervisor
    5.  1.5 Basics of Oracle VM Server for SPARC
    6.  1.6 Basics of OpenBoot PROM
  3. Chapter 2 Logging In/Out of the XSCF
    1. Click 2.1 Connecting the System Management Terminal
    2. Click 2.2 Logging In to the XSCF Shell
    3.  2.3 Logging Out from the XSCF Shell
    4. Click 2.4 Logging In to XSCF Web
    5.  2.5 Logging Out From XSCF Web
    6.  2.6 Number of Connectable Users
  4. Chapter 3 Configuring the System
    1. Click 3.1 Preliminary Work for XSCF Setup
    2. Click 3.2 Understanding the Contents of the XSCF Firmware Settings
    3.  3.3 Setting Up From the XSCF Shell
    4.  3.4 Setting Up From XSCF Web
    5. Click 3.5 Creating/Managing XSCF Users
    6. Click 3.6 Setting the XSCF Time/Date
    7. Click 3.7 Configuring the SSH/Telnet Service for Login to the XSCF
    8. Click 3.8 Configuring the HTTPS Service for Login to the XSCF
    9. Click 3.9 Configuring the XSCF Network
    10. Click 3.10 Configuring Auditing to Strengthen XSCF Security
  5. Chapter 4 Configuring the System to Suit the Usage Type
    1. Click 4.1 Setting/Checking the System Altitude
    2. Click 4.2 Controlling System Start
    3. Click 4.3 Enabling/Disabling Dual Power Feed
    4. Click 4.4 Reducing Power Consumption
    5. Click 4.5 Connecting a DVD Drive
    6. Click 4.6 Using Remote Storage
  6. Chapter 5 CPU Activation
    1.  5.1 Basic Concepts of CPU Activation
    2.  5.2 CPU Activation Key
    3. Click 5.3 Adding CPU Core Resources
    4. Click 5.4 Deleting CPU Core Resources
    5. Click 5.5 Moving CPU Core Resources
    6. Click 5.6 Displaying CPU Activation Information
    7. Click 5.7 Saving/Restoring CPU Activation Keys
    8. Click 5.8 Troubleshooting CPU Activation Errors
    9.  5.9 Important Notes about CPU Activation
  7. Chapter 6 Starting/Stopping the System
    1. Click 6.1 Starting the System
    2. Click 6.2 Stopping the System
    3.  6.3 Rebooting the System
    4.  6.4 Suppressing Starting Oracle Solaris at Power-on
  8. Chapter 7 Controlling Physical Partitions
    1.  7.1 Configuring a Physical Partition
    2. Click 7.2 Setting the Physical Partition Operation Mode
    3.  7.3 Powering On a Physical Partition
    4.  7.4 Powering Off a Physical Partition
    5.  7.5 Changing the Configuration of a Physical Partition
  9. Chapter 8 Controlling Logical Domains
    1.  8.1 Configuring a Logical Domain
    2. Click 8.2 Configuring the Oracle Solaris Kernel Zone
    3. Click 8.3 Switching to the Control Domain Console From the XSCF Shell
    4. Click 8.4 Returning to the XSCF Shell From the Control Domain Console
    5.  8.5 Starting a Logical Domain
    6.  8.6 Shutting Down a Logical Domain
    7. Click 8.7 Ordered Shutdown of Logical Domains
    8.  8.8 Checking CPU Activation Information
    9. Click 8.9 Setting the OpenBoot PROM Environment Variables of the Control Domain
    10. Click 8.10 Domain Console Logging Function
    11.  8.11 Changing the Configuration of a Logical Domain
    12.  8.12 Setting the Logical Domain Time
    13. Click 8.13 Collecting a Hypervisor Dump File
    14. Click 8.14 Managing Logical Domain Resources Associated with CPU Sockets
    15. Click 8.15 Setting the Physical Partition Dynamic Reconfiguration Policy
    16. Click 8.16 Setting the Maximum Page Size of a Logical Domain
  10. Chapter 9 Managing the Systems Daily
  11. Chapter 10 Preparing/Taking Action for Failures
    1.  10.1 Learning about Troubleshooting and Related Functions
    2. Click 10.2 Receiving Notification by E-mail When a Failure Occurs
    3. Click 10.3 Monitoring/Managing the System Status With the SNMP Agent
    4. Click 10.4 Monitoring the System
    5.  10.5 Understanding the Failure Degradation Mechanism
    6. Click 10.6 Checking Failed Hardware Resources
    7. Click 10.7 Setting Automatic Replacement of Failed CPU Cores
    8.  10.8 Setting Recovery Mode
    9.  10.9 Setting Up a Redundant Component Configuration
    10. Click 10.10 Saving/Restoring XSCF Settings Information
    11. Click 10.11 Saving/Restoring Logical Domain Configuration Information in the XSCF
    12. Click 10.12 Saving/Restoring Logical Domain Configuration Information in an XML File
    13. Click 10.13 Saving/Restoring the OpenBoot PROM Environment Variables
    14.  10.14 Saving/Restoring the Contents of a Hard Disk
    15.  10.15 Resetting a Logical Domain
    16. Click 10.16 Causing a Panic in a Logical Domain
    17.  10.17 Resetting a Physical Partition
    18. Click 10.18 Returning the Server to the State at Factory Shipment
    19.  10.19 Collecting a Crash Dump File Using Deferred Dump
  12. Chapter 11 Checking the System Status
    1. Click 11.1 Checking the System Configuration/Status
    2. Click 11.2 Checking a Physical Partition
  13. Chapter 12 Checking Logs and Messages
    1. Click 12.1 Checking a Log Saved by the XSCF
    2. Click 12.2 Checking Warning and Notification Messages
  14. Chapter 13 Switching to Locked Mode/Service Mode
    1.  13.1 Understanding the Differences Between Locked Mode and Service Mode
    2.  13.2 Switching the Operating Mode
  15. Chapter 14 Configuring a Highly Reliable System
    1. Click 14.1 Configuring Memory Mirroring
    2. Click 14.2 Configuring Hardware RAID
    3.  14.3 Using the LDAP Service
    4.  14.4 Using SAN Boot
    5.  14.5 Using iSCSI
    6. Click 14.6 Remote Power Management for the SPARC M12/M10 and I/O Devices
    7.  14.7 Using an Uninterruptible Power Supply
    8. Click 14.8 Using Verified Boot
  16. Chapter 15 Expanding the System Configuration
    1.  15.1 Changing the Virtual CPU Configuration
    2.  15.2 Changing the Memory Configuration
    3. Click 15.3 Dynamic Reconfiguration Function for PCIe Endpoint Devices
    4. Click 15.4 Using the PCI Expansion Unit
    5.  15.5 Expanding the SPARC M12-2S/M10-4S
  17. Chapter 16 Updating the XCP Firmware
    1. Click 16.1 Basics of Firmware Update
    2. Click 16.2 Before Updating Firmware
    3.  16.3 Update Flow
    4.  16.4 Preparing an XCP Image File
    5. Click 16.5 Updating Firmware
    6.  16.6 Updating Firmware From XSCF Web
    7. Click 16.7 Firmware Version Matching with Parts Addition/Replacement
    8.  16.8 Trouble During Firmware Update
    9.  16.9 FAQ Relating to Firmware Update
  18. Chapter 17 Updating Oracle Solaris and Oracle VM Server for SPARC
  19. Chapter 18 Troubleshooting
    1.  18.1 Troubleshooting for the XSCF
    2.  18.2 Precautions Concerning Using the RESET Switch
    3.  18.3 Frequently Asked Questions / FAQ
    4.  18.4 System Troubleshooting With the XSCF
  20. Appendix A Lists of SPARC M12/M10 System Device Paths
    1.  A.1 SPARC M12-1 Device Paths
    2. Click A.2 SPARC M12-2 Device Paths
    3. Click A.3 SPARC M12-2S Device Paths
    4.  A.4 SPARC M10-1 Device Paths
    5. Click A.5 SPARC M10-4 Device Paths
    6. Click A.6 SPARC M10-4S Device Paths
  21. Appendix B Identifying an SAS2 Device Based on a WWN
    1.  B.1 World Wide Name (WWN) Syntax
    2.  B.2 Overview of probe-scsi-all Command Output
    3. Click B.3 Identifying a Disk Slot by Using the probe-scsi-all Command
    4. Click B.4 Identifying Disk Slot
  22. Appendix C List of the XSCF Web Pages
    1.  C.1 Overview of the Pages
    2.  C.2 Understanding the Menu Configuration
    3. Click C.3 Available Pages
  23. Appendix D XSCF MIB Information
    1.  D.1 MIB Object Identification
    2.  D.2 Standard MIB
    3. Click D.3 Extended MIB
    4.  D.4 Traps
  24. Appendix E SPARC M12/M10 System-specific Functions of Oracle VM Server for SPARC
    1.  E.1 Ordered Shutdown of Logical Domains
    2.  E.2 CPU Activation Support
    3. Click E.3 Checking Failed Resources
    4.  E.4 Automatic Replacement of Failed CPUs
    5.  E.5 Hypervisor Dump
    6.  E.6 Domain Console Logging Function
    7.  E.7 CPU Socket Restrictions
  25. Appendix F SAS2IRCU Utility Command Examples
    1.  F.1 Displaying a List of SAS Controllers Recognized by sas2ircu
    2.  F.2 Displaying the Information of a Hardware RAID Volume
    3.  F.3 Adding a Hardware RAID Volume
    4.  F.4 Displaying the Configuration Status of a Hardware RAID Volume
    5.  F.5 Creating a Hot Spare of a Hardware RAID Volume
    6.  F.6 Deleting a Hot Spare of a Hardware RAID Volume
    7.  F.7 Deleting a Hardware RAID Volume
    8.  F.8 Identifying the Faulty Disk Drive of a Hardware RAID Volume
  26. Appendix G SPARC M12-1/M10-1 XSCF Startup Mode Function
    1. Click G.1 Function Overview
    2. Click G.2 Restrictions and Notes
    3.  G.3 Configuration Procedure
  27. Appendix H OpenBoot PROM Environment Variables and Commands
    1.  H.1 SCSI Device Display
    2.  H.2 Unsupported OpenBoot PROM Environment Variables
    3.  H.3 Unsupported OpenBoot PROM Commands
    4.  H.4 Behavior With the Security Mode Enabled
  28. Appendix I How to Specify the Boot Device
    1.  I.1 Device Path of the Internal Storage
    2.  I.2 Method of Specification With a PHY Number
    3.  I.3 Method of Specification With a Target ID
    4.  I.4 Method of Specification With an SAS Address
    5.  I.5 Method of Specification With a Volume Device Name
    6.  I.6 Notes About the Device Alias net of the SPARC M12 Without On-Board LAN
  29. Appendix J Lists of DVD Drive Aliases
    1. Click J.1 External DVD Drive Aliases
    2. Click J.2 Remote Storage DVD Drive Aliases
  30. Appendix K CPU Activation Interim Permit
    1.  K.1 What is the CPU Activation Interim Permit?
    2.  K.2 Terms of Use of the CPU Activation Interim Permit and Precautions
    3. Click K.3 Related Commands
    4. Click K.4 Flows and Procedures for Using a CPU Activation Interim Permit
    5. Click K.5 Event Notification of the CPU Activation Interim Permit
    6. Click K.6 Other Important Notes

4.4.3 Reducing the Power Consumption of Hardware That is Unused or Has a Low Utilization


4.4.3 Reducing the Power Consumption of Hardware That is Unused or Has a Low Utilization
In the SPARC M12/M10, you can set the operation for each physical partition to reduce the power consumption of the hardware that is unused or has a low utilization (power-saving operation).
When a setting that reduces the power consumption is made, the target hardware operates at a power-saving level according to its utilization. Therefore, power to hardware with a low utilization is reduced, and with an increase to the utilization, the power supply to the hardware increases.
In the SPARC M12, the power consumption can also be reduced with nearly no affect on the CPU processing performance through use of the Solaris Power Aware Dispatcher.
For software requirements of the XCP firmware and Oracle Solaris for using the Solaris Power Aware Dispatcher to reduce power consumption, see the latest version of the Fujitsu SPARC M12 Product Notes.
To set the above power-saving operation for hardware, use the setpparmode command of the XSCF firmware. Execute the command with a user account that has the platadm or pparadm privilege.
  1. SPARC M12
  1. To set the power-saving operation for SPARC M12, use the -m powermgmt_policy option.
XSCF> setpparmode -p ppar_id -m powermgmt_policy={elastic|performance|disabled}
  1. With the powermgmt_policy option, you can enable (elastic or performance) or disable (disabled) the power-saving operation. The default is disabled. The setting is reflected immediately after the command is executed.
  1. The meaning of each option setting value is as follows.
    - elastic
    Enables power-saving operation of the CPU and memory. Changes system power usage according to the current utilization levels of CPUs and memory. This can reduce system power consumption.

    - performance
    Enables power-saving operation of the CPU. This can save power without much of an effect on performance because unused, idle CPUs in the system operate at slower speeds or may have entered the sleep state.

    - disabled (default)
    Disables power-saving operation of the CPU and memory. All CPUs and memory in the system will continuously operate at the highest performance.
Note - When the power-saving operation is enabled with the elastic option specified, power consumption can be reduced, but the CPU performance may be degraded. Specifying the performance value reduces the power consumption with nearly no affect on the CPU processing performance.
If the firmware is updated from a version earlier than XCP 3040 to XCP 3040 or later, the Power Aware Dispatcher function (PAD function) to use the Solaris Power Aware Dispatcher is disabled (off).
When you specify performance for the powermgmt_policy option, you need to change the PAD function to enabled (on).
When you specify disabled or elastic for the powermgmt_policy option, whether the setting of the PAD function is on or off makes no difference in the power-saving operation.
To change the setting of the PAD function, use the -m pad option.
XSCF> setpparmode -p ppar_id -m pad={off|on}
  1. With pad, you can enable (on) or disable (off) the PAD function. The default is enabled (on).
    The meaning of each option setting value is as follows.
    - on (default)
    Enables the PAD function.

    - off
    Disables the PAD function.
    When you set this option to off, the powermgmt_policy option must be disabled or elastic.
Make the setting of the PAD function when the PPAR is stopped.
When the setting of the PAD function is changed from the disabled state to the enabled state or vice versa, the configuration information of the logical domain is restored to factory-default after the PPAR starts. In this case, the logical domains need to be reconfigured. Save the configuration information in an XML file in advance.
 
  1. SPARC M10
To set the power-saving operation for SPARC M10, use the -m elastic option.
XSCF> setpparmode -p ppar_id -m elastic={on|off}
With elastic, you can enable (on) or disable (off) the power-saving operation. It is disabled (off) by default. The setting is reflected immediately after the command is executed.
The meaning of each option setting value is as follows.
- on
Enables power-saving operation of the CPU and memory. Changes system power usage according to the current utilization levels of CPUs and memory. This can reduce system power consumption.

- off (default)
Disables power-saving operation of the CPU and memory. All CPUs and memory in the system will continuously operate at the highest performance.
Note - When the power-saving operation is enabled, power consumption can be reduced, but the CPU performance may be degraded.
For details on the setpparmode command, see the man page of the setpparmode(8) command or the Fujitsu SPARC M12 and Fujitsu M10/SPARC M10 XSCF Reference Manual.
Operation Procedure
  1. SPARC M12
Note -
- When the PAD function is disabled, you cannot change the setting of the power-saving operation to performance. After enabling the PAD function (on), change the setting to performance.

- When the power-saving operation is set to performance, you cannot disable the PAD function (off). After setting the power-saving operation to disabled or elastic, disable the function.
The following is an example for setting the power-saving operation to performance.
  1. Execute the showpparmode command to confirm the settings of the power-saving operation and PAD function. The following example shows the power-saving operation disabled and the PAD function enabled.
XSCF> showpparmode -p 0
Host-ID :90060027
Diagnostic Level :min
Message Level :normal
Alive Check :on
Watchdog Reaction :reset
Break Signal :on
Autoboot(Guest Domain) :on
Power Aware Dispatcher :on
Power Management Policy :disabled
IOreconfigure :false
CPU Mode :-
PPAR DR(Current) :-
PPAR DR(Next) :off
  1. Execute the setpparmode command to set the power-saving operation to performance.
XSCF> setpparmode -p 0 -m powermgmt_policy=performance
Diagnostic Level :min -> -
Message Level :normal -> -
Alive Check :on -> -
Watchdog Reaction :reset -> -
Break Signal :on -> -
Autoboot(Guest Domain) :on -> -
Power Aware Dispatcher :on -> -
Power Management Policy :disabled -> performance
IOreconfigure :false -> -
CPU Mode :-
PPAR DR :off -> -
The specified modes will be changed.
Continue? [y|n] :y
configured.
Diagnostic Level :min
Message Level :normal
Alive Check :on (alive check:available)
Watchdog Reaction :reset (watchdog reaction:reset)
Break Signal :on (break signal:non-send)
Autoboot(Guest Domain) :on
Power Aware Dispatcher :on
Power Management Policy :performance
IOreconfigure :false
CPU Mode :-
PPAR DR :off
  1. Execute the showpparmode command, and confirm the setting.
XSCF> showpparmode -p 0
Host-ID :90060027
Diagnostic Level :min
Message Level :normal
Alive Check :on
Watchdog Reaction :reset
Break Signal :on
Autoboot(Guest Domain) :on
Power Aware Dispatcher :on
Power Management Policy :performance
IOreconfigure :false
CPU Mode :-
PPAR DR(Current) :-
PPAR DR(Next) :off
  1. For SPARC M10
The following is an example for enabling the power-saving operation.
  1. Execute the showpparmode command to check whether the power-saving operation is enabled/disabled for hardware that is unused or has a low utilization.
XSCF> showpparmode -p 0
Host-ID :0f010f10
Diagnostic Level :min
Message Level :normal
Alive Check :on
Watchdog Reaction :reset
Break Signal :on
Autoboot(Guest Domain) :on
Elastic Mode :off
IOreconfigure :true
CPU Mode :auto
PPAR DR(Current) :-
PPAR DR(Next) :off
  1. Execute the setpparmode command to enable the power-saving operation.
XSCF> setpparmode -p 0 -m elastic=on
Diagnostic Level :min -> -
Message Level :normal -> -
Alive Check :on -> -
Watchdog Reaction :reset -> -
Break Signal :on -> -
Autoboot(Guest Domain) :on -> -
Elastic Mode :off -> on
IOreconfigure :true -> -
CPU Mode :auto -> -
PPAR DR :off -> -
The specified modes will be changed.
Continue? [y|n]:y
configured.
Diagnostic Level :min
Message Level :normal
Alive Check :on (alive check:available)
Watchdog Reaction :reset (watchdog reaction:reset)
Break Signal :on (break signal:non-send)
Autoboot(Guest Domain) :on
Elastic Mode :on
IOreconfigure :true
CPU Mode :auto
PPAR DR :off
  1. Execute the showpparmode command, and confirm the setting.
XSCF> showpparmode -p 0
Host-ID :0f010f10
Diagnostic Level :min
Message Level :normal
Alive Check :on
Watchdog Reaction :reset
Break Signal :on
Autoboot(Guest Domain) :on
Elastic Mode :on
IOreconfigure :true
CPU Mode :auto
PPAR DR(Current) :-
PPAR DR(Next) :off

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