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E9000 Server Compute Node and Switch Module iBMC (V250 to V259) User Guide 18

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Huawei uses machine translation combined with human proofreading to translate this document to different languages in order to help you better understand the content of this document. Note: Even the most advanced machine translation cannot match the quality of professional translators. Huawei shall not bear any responsibility for translation accuracy and it is recommended that you refer to the English document (a link for which has been provided).
Power Capping

Power Capping

Function Description

The Power Capping page allows you to perform the following operations:
  • View information about the server power.
  • Enable or disable the power capping function, set the power capping value, and specify the action to be taken if power capping fails.
  • View the historical average power and peak power line charts of the last week or day, view the power data obtained at each sampling time, and re-collect power statistics.

    The system obtains server power data at an interval of 10 minutes.

  • Exercise caution when you set the power capping value. A small power capping value may affect system performance and operations.
  • If you set Forced Shutdown After Power Capping Failure to , services will be affected. (The CH242 V3 does not provide forced shutdown upon a power capping failure.)

GUI

Choose Power from the main menu, and select Power Capping from the navigation tree.

The Power Capping page is displayed.

Figure 3-15 Power Capping page

Parameters

Table 3-30 Parameters in the Power Capping area

Parameter

Description

Power Capping

Power capping function, which can be enabled or disabled.
NOTE:

Before setting the power capping function, ensure that the following parameters are set on the BIOS:

  • EIST Support or EIST is set to Enabled.
  • ACPI 3.0 T-States is set to Enabled for a V2 server on the Romley platform.
  • ACPI T-States is set to Enabled for a V3 server on the Brickland platform. (ACPI T-States is unavailable for a V3 server on the Grantley platform.)
  • Software Controlled T-States is set to Enabled and T-State Throttle Level to the default value Disabled for a V5 server on the Purley platform.

Click or , and click Save.

  • To enable it, set this parameter to .
  • To disable it, set this parameter to .

Power Cap (BTU/h)

Maximum power allowed for the server in running.

Click to view the value range. The value range varies according to the server model.

The power cap value cannot be smaller than the lower limit of the recommended value range.

Forced Shutdown After Power Capping Failure

(CH242 V3 does not provide this function)

Function for automatically shutting down the system 15 seconds after power capping fails.

Click or , and click Save.

Set this parameter to to automatically shut down the system 15 seconds after power capping fails.

Table 3-31 Parameters in the Current Status area

Parameter

Description

Power Unit

Select the power unit, which can be W or BTU/h.

NOTE:

1 BTU/h = 0.293 W

Statistics Collected

Start time for power statistics collection.

Current Power

Current power of the server node.

Average Power

Average power collected since the first time the server node was powered on or since the last statistics collection start time.

Total Consumed Power

Total power collected since the first time the server node was powered on or since the last statistics collection start time.

Peak Power

Maximum power collected since the first time the server node was powered on or since the last statistics collection start time.

Peak Occurred

Time when the peak power is collected since the first server node power-on or the last statistics collection start time.

Current CPU Power

Current CPU power of the server node.

Current Memory Power

Current memory power of the server node.

Table 3-32 Parameters in the Power History area

Parameter

Description

Power history line chart

Average power

Average power collected within the last week, day, or the period from the last statistics collection start time to 10 minutes ago.

Peak power

Peak power collected within the last week, day, or the period from the last statistics collection start time to 10 minutes ago.

Procedure

Viewing Server Power

  1. On the menu bar, choose Power.
  2. In the navigation tree, choose Power Capping.

    The Power Capping page is displayed.

  3. View server power data in the Current State area.

Re-Collecting Statistics About Server Power

  1. Click Reset Statistics.

    The following information is displayed:

    Are you sure you want to perform this operation?
  2. Click Yes.

    The system deletes historical server power statistics.

Setting Power Capping
  1. Click next to Power Capping.

    The following information is displayed:

    Are you sure you want to perform this operation?
  2. Click Yes.

    If "Operation Successful" is displayed and changes to , the power capping function is enabled.

  3. Click , and enter a value in the Power Cap text box.

    The value must be within the value range displayed next to the text box.

  4. Click Save.

    If "Operation Successful" is displayed, the configuration is complete.

Disabling the Power Capping Function
  1. Click next to Power Capping.

    The following information is displayed:

    Are you sure you want to perform this operation?
  2. Click Yes.

    If "Operation Successful" is displayed and changes to , the power capping function is disabled.

Enabling Forced Shutdown After Power Capping Failure
  1. Click next to Forced Shutdown After Power Capping Failure.

    The following information is displayed:

    Are you sure you want to perform this operation? 
  2. Click Yes.

    If "Operation Successful" is displayed and changes to , the server will automatically power off 15 seconds after power capping fails.

Deleting Historical Power Statistics

  1. Click Reset Statistics.

    The following information is displayed:

    Are you sure you want to perform this operation? 
  2. Click Yes.

    The system deletes historical server power statistics and collects server power statistics immediately.

Downloading Historical Power Statistics

Click Download.

The historical power data file is automatically saved to the local PC.

Viewing the Power History of the Last Week

  1. In the Power History area, click Last week.

    The peak and average power statistics of the last week are displayed. If the period from the latest statistics collection start time to the current time is less than one week, only the power statistics generated since the latest statistics collection start time are displayed.

Viewing the Power History of the Last 24 Hours

In the Power History area, click Last 24 Hours.

The peak and average power statistics of the last 24 hours are displayed.

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Updated: 2019-06-04

Document ID: EDOC1000157052

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