C H A P T E R 9

Power Monitoring and Management of Hardware Interfaces

Topics
Description | Links
--- | ---
Identify power monitoring and management feature updates per ILOM firmware point release | Summary of Power Management Feature Updates
CLI procedures for power monitoring and management of hardware interfaces | Monitoring System Power Consumption Configuring Power Policy Settings to Manage Server Power Usage Configuring Power Consumption Threshold Notifications Monitoring Component Power Allocation Distributions Configuring Power Limit Properties Monitoring or Configuring CMM Power Supply Redundancy Properties

Related Topics |  |
--- | --- | ---
For ILOM | Chapter or Section | Guide
Concepts | Power Consumption Management Interfaces | Oracle Integrated Lights Out Manager (ILOM) 3.0 Concepts Guide (820-6410)
Web interface | Monitoring Power Consumption | Oracle Integrated Lights Out Manager (ILOM) 3.0 Web Interface Procedures Guide (820-6411)
IPMI and SNMP hosts | Monitoring Power Consumption | Oracle Integrated Lights Out Manager (ILOM) 3.0 Management Protocols Reference Guide (820-6413)
Feature Updates | Power Management Feature Updates | Oracle Integrated Lights Out Manager (ILOM) 3.0 Features Updates and Release Notes (820-7329).
The ILOM 3.0 Documentation Collection is available at: `http://docs.sun.com/app/docs/prod/int.lights.mgr30#hic`.

##

Summary of Power Management Feature Updates

TABLE 9-1 identifies the common power management feature enhancements and documentation updates made since ILOM 3.0.

TABLE 9-1 Power Management Feature Updates per ILOM Firmware Point Release
New or Enhanced Feature | Firmware Point Release | Documentation Updates | For Updated CLI Procedures, see:
--- | --- | --- | ---
Monitor Power Consumption Metrics | ILOM 3.0 | New terms and definitions for Power Management Metrics New System Monitoring --> Power Management Consumption Metric properties New CLI and web procedures added for monitoring device power consumption | Monitoring System Power Consumption
Configure Power Policy Properties | ILOM 3.0 | New power policy properties explained. New CLI and web procedures added for configuring power policy settings | Configuring Power Policy Settings to Manage Server Power Usage
Monitor Power Consumption History | ILOM 3.0.3 | New power consumption history metrics New CLI and web procedures added for monitoring power consumption | Monitor Power Consumption History
Configure Power Consumption Notification Thresholds | ILOM 3.0.4 | New power consumption notification threshold settings New CLI and web procedures added for configuring the power consumption thresholds | Configuring Power Consumption Threshold Notifications
Monitor Allocation Power Distribution Metrics | ILOM 3.0.6 | New component allocation distribution metrics New CLI and web procedures added for monitoring power allocations New CLI and web procedures added for configuring permitted power for blade slots | Monitoring Component Power Allocation Distributions
Configure Power Budget Properties | ILOM 3.0.6 | New power budget properties New CLI and web procedures added for configuring power budget properties | Configuring Power Limit Properties
Configure Power Supply Redundancy Properties for CMM Systems | ILOM 3.0.6 | New power supply redundancy properties for CMM system. New CLI and web procedures added for configuring power supply redundancy properties on CMM systems | Monitoring or Configuring CMM Power Supply Redundancy Properties
CLI Update for CMM Power Management | ILOM 3.0.10 | New top-level tab added to ILOM web interface for Power Management Revised CLI commands for CMM Power Management Metrics tab removed from CMM ILOM web interface Updated CLI procedure for configuring a grant limit for blade slots (previously known as allocatable power) | View Blade Slots Granted Power or Reserved Power as of ILOM 3.0.10 View Granted Power or Grant Limit for Blade as of ILOM 3.0.10 Configure Grant Limit for aBlade as of ILOM 3.0.10

##

Monitoring System Power Consumption

Topics
Description | Links | Platform Feature Support
--- | --- | ---
Monitor power consumption | Monitor Total System Power Consumption Monitor Actual Power Consumption Monitor Individual Power Supply Consumption Monitor Available Power Monitor Server Hardware Maximum Power Consumption Monitor Permitted Power Consumption | x86 system server SP SPARC system server SP CMM
Monitor power consumption history | Monitor Power Consumption History | x86 system server SP SPARC system server SP CMM

### Before You Begin

- Review the Power Monitoring Terminology defined in the Oracle Integrated Lights Out Manager (ILOM) 3.0 Concepts Guide.

Note - The power consumption features described in this chapter might not be implemented on your platform server or CMM. To determine whether the power consumption features described in this section are supported on your server or CMM, see the ILOM Supplement or Administration guide provided for your server.

- To access the power consumption metrics provided by ILOM you must be running ILOM 3.0 or later. To access the power consumption history, you must be running ILOM 3.0.3 or later.

Note - Power consumption history is provided using the ILOM CLI and web interfaces. This information is not available through IPMI or SNMP.

- Some platform servers might provide additional platform-specific power metrics under the `/SP/powermgmt/advanced` node. To determine whether your system supports additional platform-specific power metrics, see the ILOM Supplement Guide or administration guide provided for your server.

### Monitor Total System Power Consumption

1. Log in to the ILOM SP CLI or the ILOM CMM CLI.

2. Type the `show` command to display the total power consumption.

For example:

- On the server SP, type:

`->` `show /SYS/VPS`

- On the CMM, type:

`->``show /CH/VPS```

     /CH/VPS
        Targets:
            history

        Properties:
            type = Power Unit
            ipmi_name = VPS
            class = Threshold Sensor
            value = 898.503 Watts
            upper_nonrecov_threshold = N/A
            upper_critical_threshold = N/A
            upper_noncritical_threshold = N/A
            lower_noncritical_threshold = N/A
            lower_critical_threshold = N/A
            lower_nonrecov_threshold = N/A
            alarm_status = cleared

        Commands:
            cd
            show

The following table lists and describes the properties of the Total Power Consumption sensor for CLI.

Property | Value
--- | ---
`type` | Threshold values are platform specific. Refer to your platform documentation for details.
`class`
`value`
`upper_nonrecov_threshold`
`upper_critical_threshold`
`upper_noncritical_threshold`
`lower_noncritical_threshold`
`lower_critical_threshold`
`lower_nonrecov_threshold`

### Monitor Actual Power Consumption

1. Log in to the ILOM server SP CLI or ILOM CMM CLI.

2. Type the `show` command to display the actual power consumption.

For example:

- For the server SP, type:

-> `show``` `/SP/powermgmt actual_power`

- For the CMM, type:

# -> `show /CMM/powermgmt actual_power`

Note - The `actual_power` is the same as `/SYS/VPS.` The `actual_power` is the value returned by the sensor.

### Monitor Individual Power Supply Consumption

1. Log in to the ILOM server SP CLI or ILOM CMM CLI.

2. Type the `show` command to display the individual power supply consumption.

For example:

- For CLI on rackmounted system:

`->` `show /SYS/`platform_path_to_powersupply`/INPUT_POWER|OUTPUT_POWER`

- For CLI on CMM:

`->` `show /CH/`platform_path_to_powersupply`/INPUT_POWER|OUTPUT_POWER`

The following table lists and describes the properties of the CLI sensors. Both sensors, INPUT_POWER and OUTPUT_POWER, have the same properties.

Property | Value
--- | ---
`type` | Power Unit
`class` | Threshold Sensor
`value` | <total consumed power in watts, for example "1400">
`upper_nonrecov_threshold` | N/A
`upper_critical_threshold` | N/A
`upper_noncritical_threshold` | N/A
`lower_noncritical_threshold` | N/A
`lower_critical_threshold` | N/A
`lower_nonrecov_threshold` | N/A

Note - Power sensors are not supported on server modules (blades).

### Monitor Available Power

1. Log in to the ILOM server SP CLI or the ILOM CMM CLI.

2. Type the `show` command to display the available power.

For example:

- For CLI on a rackmounted system:

`->` `show /SP/powermgmt available_power`

- For CLI on a CMM:

`->` `show /CMM/powermgmt available_power`

### Monitor Server Hardware Maximum Power Consumption

1. Log in to the ILOM server SP CLI.

2. Type the `show` command to display the hardware configuration maximum power consumption.

For example:

    -> show /SP/powermgmt hwconfig_power

### Monitor Permitted Power Consumption

1. Log in to the ILOM Server SP CLI or the ILOM CMM CLI.

2. Type the `show` command to display the permitted power consumption.

For example:

- For CLI on a rackmounted system:

`->` `show /SP/powermgmt permitted_power`

- For CLI on a CMM:

-> `show /CMM/powermgmt permitted_power`

### Monitor Power Consumption History

1. Log in to ILOM the server SP CLI or the ILOM CMM CLI.

2. Use the show command to view actual power consumption.

For example:

- From the server SP:

`->``show /SYS/VPS`

- From a server module in a chassis:

`->``show /CMM/BL` n`/VPS`

- From the CMM:
  `->``show /CH/VPS`

    ->show /CH/VPS

     /CH/VPS
        Targets:
            history

        Properties:
            type = Power Unit
            ipmi_name = VPS
            class = Threshold Sensor
            value = 1400.000 Watts
            upper_nonrecov_threshold = N/A
            upper_critical_threshold = N/A
            upper_noncritical_threshold = N/A
            lower_noncritical_threshold = N/A
            lower_critical_threshold = N/A
            lower_nonrecov_threshold = N/A
            alarm_status = cleared

        Commands:
            cd
            show

3. Use the `show` command to display 15-, 30-, and 60-second rolling power usage average, and to display a choice of targets for average consumption history.

For example:

- From the server SP, type:

`->``show /SYS/VPS/history`

- From the CMM, type:

`->``show /CH/VPS/history`

    ->show /CH/VPS/history

     /CH/VPS/history
        Targets:
            0 (1 Minute Average, 1 Hour History)
            1 (1 Hour Average, 14 Day History)

        Properties:
            15sec_average = 1210.000
            30sec_average = 1400.000
            60sec_average = 1800.000

        Commands:
            cd
            show

4. Use the `show` command to display average consumption history by the minute or hour respectively, type the following command with the appropriate target named.

For example

- From the server SP, type:

`->``show /SYS/VPS/history/0`

- From the CMM:
  `->``show /CH/VPS/history/0`

For example:

    ->show /CH/VPS/history/0

    /CH/VPS/history/
       Targets:
           list

       Properties:
           average = 1500.000
           minimum = 1500.000 at Mar  4 08:51:24
           maximum = 1500.000 at Mar  4 08:51:23
           period = 1 Minute Average
           depth = 1 Hour History

       Commands:
           cd
           show

5. Use the `show` command to display sample set details such as time stamp and power consumed in watts.

For example:

- From the server SP, type:
  `->``show /SYS/VPS/history/0/list`

- From the CMM, type:
  `->``show /CH/VPS/history/0/list`

    ->show /CH/VPS/history/0/list

    /CH/VPS/history/0/list
       Targets:

       Properties:
           Mar  4 08:52:23 = 1500.000
           Mar  4 08:51:24 = 1500.000
           Mar  4 08:50:24 = 1500.000
           Mar  4 08:49:24 = 1500.000
           Mar  4 08:48:24 = 1500.000
           Mar  4 08:47:23 = 1500.000
    Commands:
           cd
           show

##

Configuring Power Policy Settings to Manage Server Power Usage

Topics
Description | Links | Platform Feature Support
--- | --- | ---
Configure power policy | Configure Server SP Power Policy | x86 system server SP (prior to ILOM 3.0.4) SPARC system server SP

### Before You Begin

- Review the Power Monitoring Terminology defined in the Oracle Integrated Lights Out Manager (ILOM) 3.0 Concepts Guide.

Note - The power policy feature described in this section might not be implemented on the platform server or CMM that you are using. To determine whether the power consumption feature described in this section are supported on your server or CMM, see the ILOM Supplement or Administration guide provided for your server.

- To configure the Power Policy properties in ILOM for x86 servers, you must have Administrator (`a`) role privileges and you must be running ILOM 3.0.3 or earlier.

- To configure the Power Policy properties in ILOM for SPARC servers, you must have Administrator (`a`) role privileges and you must be running ILOM 3.0 or later.

### Configure Server SP Power Policy

1. Log in to the ILOM server SP CLI.

2. Type the `set` command to set the power policy:

-> `set /SP/powermgmt policy=Performance|Elastic`

3. Type the `show` command to display the power policy:

-> `show /SP/powermgmt policy`

##

Configuring Power Consumption Threshold Notifications

Topics
Description | Links | Platform Feature Support
--- | --- | ---
View or configure power consumption notification thresholds | View and Configure Notification Thresholds Using the CLI | x86 system server SP SPARC system server SP CMM

### Before You Begin

- Review the Power Monitoring Terminology defined in the Oracle Integrated Lights Out Manager (ILOM) 3.0 Concepts Guide.

- You must have ILOM 3.0.4 or later installed on your server or CMM.

- You must have Administrator (`a`) privileges in ILOM to change power consumption configuration variables.

### View and Configure Notification Thresholds Using the CLI

1. Log in to ILOM server SP CLI or the ILOM CMM CLI.

2. To view the current settings, type:

`->` `show /SP/powermgmt`

or

-> `show /CMM/powermgmt`

3. To set the value for notification thresholds, type:

-> `set threshold1|2=`n

Where n represents watts.

Note - Setting the notification threshold value to `0` (zero) will disable the notification threshold option.

##

Monitoring Component Power Allocation Distributions

Topics
Description | Links | Platform Feature Support
--- | --- | ---
View component allocation metrics for server or CMM | View Server Power Allocations for All System Components View Server Component Power Allocations View CMM Power Allocations for All Chassis Components View CMM Component Power Allocations View Blade Slots Granted Power or Reserved Power as of ILOM 3.0.10 View Granted Power or Grant Limit for Blade as of ILOM 3.0.10 | x86 system server SP SPARC system server SP CMM

### Before You Begin

- Review the Power Monitoring Terminology defined in the Oracle Integrated Lights Out Manager (ILOM) 3.0 Concepts Guide.

- Review the conceptual information about Component Allocation Power Distribution in the Oracle Integrated Lights Out Manager (ILOM) 3.0 Concepts Guide.

- You must have ILOM 3.0.6 or later installed on your server or CMM. Where noted, some procedures described in this section require the server or CMM to be running ILOM 3.0.10 or later.

- As of ILOM 3.0.10, some of the CLI properties for the CMM and blades have changed:

- `allocated_power` renamed to `granted_power`

- `allocatable_power` renamed to `grantable_power`

- `permitted_power` renamed to `grant-in-aid`

Where:

- Granted power represents the sum of the maximum power consumed by either a single server component (such as, memory module), a category of server components (all memory modules), or a all server power consuming components.

- Grantable Power indicates the total remaining power (watts) available from the CMM to allocate to blade slots without exceeding the grant limit.

- Grant Limit represents the maximum power the system will grant to a blade slot.

- You must have Administrator (`a`) privileges in ILOM to change any power consumption or allocation configuration variables.

### View Server Power Allocations for All System Components

1. Log in to the ILOM server SP CLI.

2. To view the sum of power allocated to all components in the system, type the following command:

-> `show` /`SP/powermgmt allocated_power`

### View Server Component Power Allocations

1. Log in to the ILOM server SP CLI.

2. To view power allocated to a component category (fans, CPUs, and so forth), type the following command:

-> `show` /`SP/powermgmt/powerconf/`component_type

Where component_type is the name of the component category.

For example, to view the power allocated to all CPUs (component category), you would type:

-> `show /SP/powermgmt/powerconf/CPUs`

Note - For each command, the read-only value for the maximum power consumed by the component is returned, measured in watts.

3. To view the power allocated to a specific component, type the following command:

-> `show /SP/powermgmt/powerconf/`component_type`/`component_name

- Where component_type is the name of the component category.

- Where component_name is the name of the component.

For example, to view the power allocated to a specific CPU, you would type:

-> `show /SP/powermgmt/powerconf/CPUs/CPU` n

Where n is the installed location number of the CPU.

Other rackmount server components can include:

- `/SP/powermgmt/powerconf/Fans/FB0_FM` n

- `/SP/powermgmt/powerconf/PSUs/PS` n

- `/SP/powermgmt/powerconf/CPUs/MB_P` n

- `/SP/powermgmt/powerconf/memory/MB_P0_D` n

- `/SP/powermgmt/powerconf/IO/DBP_HDD` n

Other server module components can include:

- `/SP/powermgmt/powerconf/CPUs/MB_P` n

- `/SP/powermgmt/powerconf/memory/MB_P0_D` n

- `/SP/powermgmt/powerconf/IO/DBP_HDD` n

### View CMM Power Allocations for All Chassis Components

1. Log in to the ILOM CMM CLI.

2. To view the sum of power allocated to all chassis system components, do one of the following:

- If you are running ILOM 3.0.8 or earlier, type the following command:

-> `show` /`CMM/powermgmt allocated_power`

- If you are running ILOM 3.0.10 or later, type the following command:

-> `show` /`CMM/powermgmt granted_power`

3. To view the remaining power available to allocate to blade slots, type the following command:

-> `show` /`CMM/powermgmt allocatable_power`

### View CMM Component Power Allocations

1. Log in to the ILOM CMM CLI.

2. To view power allocated to a component category (fans, blade slots, and so forth), type the following command:

-> `show` /`CMM/powermgmt/powerconf/`component_type

Where component_type is the name of the component category.

For example, to view the power allocated to all blade slots (component category), you would type:

-> `show /CMM/powermgmt/powerconf/bladeslots`

Note - For each command, the read-only value for the maximum power consumed by the component is returned, measured in watts.

3. To view the power allocated to a specific component, type the following command:

-> `show /CMM/powermgmt/powerconf/`component_type`/`component_name

Where component_type is the name of the component category.

Where component_name is the name of the component.

For example, to view the power allocated to a specific blade slot, you would type:

->`show /CMM/powermgmt/powerconf/bladeslots/BL` n

Where n is the location number of the blade slot.

Other CMM components can include:

- `/CMM/powermgmt/powerconf/NEMs/NEM` n

- `/CMM/powermgmt/powerconf/Fans/FM` n

- `/CMM/powermgmt/powerconf/PSUs/PS` n

### View Blade Slots Granted Power or Reserved Power as of ILOM 3.0.10

1. Log in to the ILOM CMM CLI.

2. To view the sum of power granted to all blade slots or the sum of power reserved for all auto-powered I/O blade slots, type the following command:

-> `show` /`CMM/powermgmt/powerconf/bladeslots`

The `granted_power` value and `reserved_power` value allocated to all blade slots appears, see example CLI output:

    -> show /CMM/powermgmt/powerconf/bladeslots
    /CMM/powermgmt/powerconf/bladeslots
        Targets:
            BL0
            BL1
            BL2
            BL3
            BL4
            BL5
            BL6
            BL7
            BL8
            BL9
    Properties:
            granted_power = 952
            reserved_power = 876
    Commands:
            cd
            show

### View Granted Power or Grant Limit for Blade as of ILOM 3.0.10

1. Log into the ILOM CMM CLI.

2. To view the sum of power granted to an individual blade or to the grant limit value set for a blade, type the following command:

`-> show /CMM/powermgmt/powerconf/bladeslot/BL` n``

Where n represents the slot location for the blade.

Example output:

    -> show /CMM/powermgmt/powerconf/bladeslots/BL1

     /CMM/powermgmt/powerconf/bladeslots/BL1
        Targets:

        Properties:
            granted_power = 0
            grant_limit = 800

        Commands:
            cd
            set
            show

##

Configuring Power Limit Properties

Topics
Description | Links | Platform Feature Support
--- | --- | ---
Configure server SP power limit properties | Configure Permitted Power for Blade Slots Configure Server Power Budget Properties Configure Grant Limit for aBlade as of ILOM 3.0.10 | x86 system server SP SPARC system server SP CMM

### Before You Begin

- Review the Power Monitoring Terminology defined in the Oracle Integrated Lights Out Manager (ILOM) 3.0 Concepts Guide.

- Review the conceptual information about Server Power Limit (or Server Power Budget) in the Oracle Integrated Lights Out Manager (ILOM) 3.0 Concepts Guide.

- You must have ILOM 3.0.6 or later installed on your server or CMM. Where noted, some procedures described in this section require the server or CMM to be running ILOM 3.0.10 or later.

- As of ILOM 3.0.10, some of the CLI properties for the CMM and blades have changed:

- `allocated_power` renamed to `granted_power`

- `allocatable_power` renamed to `grantable_power`

- `permitted_power` renamed to `grant_limit`

Where:

- Granted power represents the sum of the maximum power consumed by either a single server component (such as a memory module), a category of server components (all memory modules), or a all server power consuming components.

- Grantable Power indicates the total remaining power (watts) available from the CMM to allocate to blade slots without exceeding the grant limit.

- Grant Limit represents the maximum power the system will grant to a blade slot.

- You must have Administrator (`a`) role privileges in ILOM to change any power management configuration variables.

### Configure Permitted Power for Blade Slots

1. Log in to the ILOM CMM CLI.

2. To configure the permitted (maximum) power that the CMM will allocate to a blade slot, do one of the following:

- If you are using ILOM 3.0.8 or earlier, type the following command:

`-> set /CMM/powermgmt/powerconf/bladeslots/bladeslot` n`` `permitted_power``=`watts

Where `bladeslot` n represents the blade slot that you want to configure.

For example:

    -> set /CMM/powermgmt/powerconf/bladeslots/bladeslot1 permitted_power=1200
    Set 'permitted_power' to '1200'

- If you are using ILOM 3.0.10 or later, type the following command:

`-> set /CMM/powermgmt/powerconf/bladeslots/bladeslot` n`` `grant_limit``=`watts

Where `bladeslot` n represents the blade slot that you want to configure.

Note - To prevent a server module from powering-on, set the permitted power value for the blade slot to `0`.

### Configure Server Power Budget Properties

1. Log in to the ILOM server SP CLI.

2. To view the current power budget settings, type the following command:

`->` `show /SP/powermgmt/budget`

Example output:

     /SP/powermgmt/budget
        Targets:
    Properties:
            activation_state = enabled
            status = ok
            powerlimit = 600 (watts)
            timelimit = default (30 seconds)
            violation_actions = none
            min_powerlimit = 150
            pendingpowerlimit = 600 (watts)
            pendingtimelimit = default
            pendingviolation_actions = none
            commitpending = (Cannot show property)
    Commands:
            cd
            show
    ->

3. To configure power budget settings, type the following command:

`-> set /SP/powermgmt/budget` property`=`value

Where property`=`value represents one of the following:

- `activation_state=[enabled|disabled]`

- `pendingpowerlimit=[`watts `w|`percent`%]`

- `pendingtimelimit=[default|none|`seconds`]`

- `pendingviolation_actions=[none|poweroff]`

- `commitpending=true`

Power Budget Property | Description
--- | ---
Activation State | Enable this property to enable the power budget configuration.
Power Limit | Set a `Power` `Limit` in watts or as a percentage of the range between minimum and maximum system power. Note - The minimum system power is viewable in the CLI under the target `/SP/powermgmt/budget min_powerlimit`. The maximum system power is viewable from the `Allocated` `Power` property in the web interface or from the CLI under the target `/SP/powermgmt allocated_power`.
Time Limit | Specify one of the following grace periods for capping the power usage to the limit: Default - Platform selected optimum grace period. None - No grace period. Power capping is permanently applied. Custom - User-specified grace period.
Violation Actions | The actions that the system will take if the power limit cannot be achieved within the grace period. This option can be set to `None` or `Hard Power Off`. This setting, by default, is set to `None`.

Note - To set the `powerlimit`, `timelimit` and `violation_action` in the ILOM CLI, you must set the matching pending properties and then commit these three pending properties as a group. After these properties are committed by typing `set /SP/powermgmt/budget` `commitpending=true`, the new values will apply whenever the budget `activation_state` is set to `enabled`.

For example:

    -> set /SP/powermgmt/budget activation_state=enabled
    Set 'activation_state' to 'enabled'

### Configure Grant Limit for aBlade as of ILOM 3.0.10

1. Log in to the ILOM CMM CLI.

Note - To change the grant power limit for any blade in ILOM requires an Admin (`a`) role user account.

2. To configure the permitted (maximum) power that the CMM will allocate to a blade, type the following command:

`-> set /CMM/powermgmt/powerconf/bladeslots/BL` n `grant_limit=`watts

Note - To prevent a server module from powering-on, set the grant limit value for the blade to `0`.

Note - The `grant_limit` value cannot be less than any amount already granted (`granted_power`).

##

Monitoring or Configuring CMM Power Supply Redundancy Properties

Topics
Description | Links | Platform Feature Support
--- | --- | ---
Monitor or configure the CMM power supply redundancy properties | Monitor or Configure CMM Power Supply Redundancy Properties | CMM

### Before You Begin

- Review the Power Monitoring Terminology defined in the Oracle Integrated Lights Out Manager (ILOM) 3.0 Concepts Guide.

- Review the conceptual information about power supply redundancy for CMM systems in the Oracle Integrated Lights Out Manager (ILOM) 3.0 Concepts Guide.

- You must have ILOM 3.0.6 or later installed on your server to configure CMM power supply redundancy properties.

- You must have Administrator (`a`) role privileges in ILOM to change any power management configuration variables.

### Monitor or Configure CMM Power Supply Redundancy Properties

1. Log in to the ILOM CMM CLI.

2. To configure power management settings, type the following command:

->`set /CMM/powermgmt` property`=`value

Where property`=`value represents the redundancy `[none|n+n]`

For example:

    -> set /CMM/powermgmt redundancy=none
    Set 'redundancy' to 'none'

Note - When you change the redundancy policy, this change affects the amount of power the CMM is permitted to allocate to server modules (blades). The chassis `Permitted Power` is set to the power that the available power supplies can provide minus the redundant power that is available. In addition, when there is no redundant power available to the system, a loss of a power supply will cause the system to reduce the `Permitted` `Power`. If the system reduces the `Permitted` `Power` below the power that had already been allocated, you should immediately take steps to turn off the server modules to reduce the allocated power.

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