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Huawei V2 and V3 Server RAID Controller Card User Guide 36

This document describes the appearances and features of the redundant array of independent disks (RAID) controller cards, how to configure properties for the RAID controller cards, and how to install drivers. The RAID controller cards include the LSI SAS2208, LSI SAS2308, LSI SAS3008, LSI SAS3108, LSI SoftRAID, PM8060, and PM8068.
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RAID Rebuild

RAID Rebuild

In a RAID array with redundancy, data on a failed member drive can be rebuilt to prevent data loss.

A RAID rebuild applies to the following scenarios:

  • If a hot spare drive is available when a member drive of a RAID array fails, the controller card automatically adds the hot spare drive to the RAID array and rebuilds data on the new member drive using data on other member drives or redundant data. During the rebuild process, the RAID array enters degraded or partially degraded mode, and the new member drive is in the Rebuild state.
  • If hot or emergency spare is not enabled, the RAID array enters degraded or partially degraded mode when a drive fails. When the failed drive is removed and replaced by a new drive, the RAID controller automatically adds the new drive to the RAID array and starts rebuilding data.
Updated: 2019-11-01

Document ID: EDOC1000004186

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