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Huawei Server Brickland Platform BIOS Parameter Reference 23

This document describes the basic input/output system (BIOS) menu structure, parameters and common tasks based on the Brickland platform.
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Enabling Memory Mirroring

Enabling Memory Mirroring

This topic describes how to enable the Memory Mirroring function.

Scenarios

Enable the Memory Mirroring function using basic input/output system (BIOS) programs.

The Memory Mirroring function is used for mirroring a part of system memory and saving important data (this must be supported by the operating system). The minimum granularity is at HA level, with four memory channels. After the Memory Mirroring function is enabled, you can mirror important areas to improve the reliability of key areas and ensure that only a little memory capacity is lost. This function is disabled by default.

Impact on the System

This operation has no adverse impact on the system.

Prerequisites

Conditions

You have accessed BIOS. For details, see 2.1 .

Data

Data preparation is not required for this operation.

Procedure

  1. Choose IntelRCSetup > Memory RAS Configuration and press Enter.

    The Memory RAS Configuration screen appears, as shown in Figure 3-8.

    Figure 3-8 Memory RAS Configuration screen (RH5885 V3)

  2. Select Memory Mirroring and press Enter, as shown in Figure 3-8.
  3. Perform the following steps based on the server model.

    • RH8100 V3 server: Select Manu or Auto in the displayed shortcut menu to enable Memory Mirroring.
    • Other servers: Select Enable in the displayed shortcut menu to enable Memory Mirroring.

  4. Perform the following steps based on the server model.

    • RH8100 V3 server: If the Memory Mirroring is set to Manu, select the mirror mode (such as Memory Mirroring MemBoard1) of the corresponding node and press Enter. If the Memory Mirroring is set to Auto, skip this step.
    • Other servers: Select the mirror mode (such as Memory Mirroring SCK0 MC0) of the corresponding node and press Enter,

    as shown in Figure 3-9.

    Figure 3-9 Selecting the mirror mode of the corresponding Node (RH5885 V3)

  5. From the short-cut menu that appears, choose Enable to select the mirror mode of the corresponding node, as shown in Figure 3-9.

    If Mirror conflicts with Rank Sparing, check whether Rank Sparing of the corresponding node level is disabled.

  6. Press F10.

    The Exit Saving changes? dialog box appears.

  7. Select Yes to save the settings.
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Updated: 2018-12-03

Document ID: EDOC1000039573

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