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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 Rank Sparing

Enabling Memory Rank Sparing

This topic describes how to enable the Memory Rank Sparing function.

Scenarios

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

With the Memory Rank Sparing function, some ranks in the memory are used as backup ranks to prevent system faults caused by uncorrectable errors. When a large number of correctable errors occur in a rank after this function is enabled, the rank is replaced with a backup rank. 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 3-3.

    Figure 3-3 Memory RAS Configuration screen

  2. Select Memory Rank Sparing and press Enter, as shown in Figure 3-3.
  3. From the short-cut menu that appears, choose Enable to enable Memory Rank Sparing.
  4. Select Spare Error/Memory Correctable Threshold, press Enter, and set the error quantity threshold for triggering Rank Sparing (the threshold that is set here is shared by DDDC, Device Tagging, and Rank Sparing).

    See Figure 3-4.

    Figure 3-4 Spare Error/Memory Correctable Threshold that has been set

  5. On the Memory RAS Configuration screen, select the branch (such as Socket 0 Branch 0 Spare) that requires Rank Sparing and press Enter, as shown in Figure 3-5.

    Figure 3-5 Selecting the branch that requires Rank Sparing

  6. From the short-cut menu that appears, choose Enable to enable the branch that requires Rank Sparing, as shown in Figure 3-5.
  7. Perform the following steps based on the server model.

    • RH8100 V3 server: If the Memory Rank Sparing is set to Manu, select a backup rank (such as MemBoard1 CH0 Spare Rank) for the corresponding channel. A backup rank must have the largest capacity in the current channel. If you are not sure, select Auto. If the Memory Rank Sparing is set to Auto, skip this step.
    • Other servers: Select a backup rank (such as SCK0 MC0 CH0 Spare Rank) for the corresponding channel. A backup rank must have the largest capacity in the current channel. If you are not sure, select Auto.

    See Figure 3-6.

    Figure 3-6 Setting a backup rank for the corresponding channel

  8. Press Esc to return to IntelRCSetup, select Runtime Error Logging, and press Enter.

    The Runtime Error Logging screen appears, as shown in Figure 3-7.

    Figure 3-7 Runtime Error Logging screen

  9. Select System Errors and press Enter, as shown in Figure 3-7.
  10. Choose Enable from the short-cut menu that appears.
  11. Press F10.

    The Exit Saving changes? dialog box appears.

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

Document ID: EDOC1000039573

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