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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 0, 1, 5, and 10

RAID 0, 1, 5, and 10

The controller card supports up to:

  • 6 hard drives.
  • 8 virtual drives. Each virtual drive holds up to 6 hard drives.

Table 9-2 lists the RAID levels available for the number of hard drives present and the maximum allowed failed drives, which cannot be adjacent to each other. A RAID array consists of multiple spans. For example, a RAID 50 array consists of two RAID 5 spans.

Table 9-2 RAID levels supported by hard drive quantity

RAID Level

Total Hard Drives

Maximum Failed Drives

RAID 0

1 to 6

0

RAID 1

2

1

RAID 5

3 to 6

1

RAID 10

4 to 6 (even)

Total spans

  • The failed hard drives cannot be adjacent. For details, see RAID Levels.
  • Each span of a RAID 10 array allows for only one failed drive.

When using the SoftRAID, you need to install a RAID key to support RAID 5.

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Updated: 2019-11-01

Document ID: EDOC1000004186

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