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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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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).
Technical Specifications

Technical Specifications

This section describes the technical specifications of RAID controller cards.

Table 2-1 describes the basic parameters of RAID controller cards.

Table 2-1 Basic parameters

Parameter

LSI SAS2208

LSI SAS2308

LSI SAS3008IR

LSI SAS3008IT

LSI SAS3108

Intel SoftRAID

PM8060

PM8068

Port rate (Gbit/s)

6

6

12

12

12

6 (Only SATA drives are supported.)

12

12

Number of supported RAID arrays

64

2

2

N/A

64

8

64

64

Maximum number of hard drives per RAID array

16 or 32 (Note 2)

10

10

N/A

32 or 240 (Note 1)

6

128

128

Maximum number of hard drives in all RAID arrays (Note 4)

16 or 32 (Note 2)

14

14

N/A

32 or 240 (Note 1)

6

240

240

Support for transparent transmission

No

Yes

Yes

Yes

Yes

No

Yes

Yes

Number of hard drives supported by transparent transmission

N/A

1000

1000

1000

32 or 240 (Note 1)

N/A

240

240

Maximum number of hard drives supported

16 or 32 (Note 2)

1000

1000

1000

32 or 240 (Note 1)

6

240

240

Support for CacheCade

No

No

No

No

Yes

No

No

No

Cache read/write ratio adjustable

N/A

N/A

N/A

N/A

No

N/A

NA

NA

Maximum number of SSDs supported by CacheCade

N/A

N/A

N/A

N/A

32

N/A

NA

NA

Maximum CacheCade capacity

N/A

N/A

N/A

N/A

512 GB

N/A

NA

NA

RAID levels supported by CacheCade

N/A

N/A

N/A

N/A

RAID 0/1

N/A

NA

NA

Hot sparing supported by CacheCade

N/A

N/A

N/A

N/A

Yes

N/A

NA

NA

Support for FastPath

Yes (only 107 or later versions)

No

Yes

Yes

Yes

No

No

No

Support for 4K drives

Yes

Yes

Yes

Yes

Yes

No

Yes

Yes

RAID levels supported

RAID 0/1/10/5/50/6/60

RAID 0/1/10/1E

RAID 0/1/10/1E

N/A

RAID 0/1/10/5/50/6/60

RAID 0/1/10/5 (RAID 5 is supported only with a license.)

0/1/10/5/50/6/60

0/1/10/5

Support for strip size configuration

Yes (8 KB, 16 KB, 32 KB, 64 KB, 128 KB, 256 KB, 512 KB, and 1024 KB)

No (64 KB by default)

No (64 KB by default)

N/A

Yes (64 KB, 128 KB, 256 KB, 512 KB, and 1024 KB)

No (64 KB by default)

Yes (64 KB, 128 KB, 256 KB, 512 KB, and 1024 KB)

Yes (8 KB, 16 KB, 32 KB, 64 KB, 128 KB, 256 KB, 512 KB, and 1024 KB)

Support for power failure protection by iBBU

Yes (Cache protection time is 24 hours by default and varies the battery working mode.)

No

No

No

No

No

No

No

Support for power failure protection by supercapacitor

Yes

No

No

No

Yes

No

Yes

No

Support for global hot spare

Yes

Yes

Yes

N/A

Yes

Yes

Yes

Yes

Support for dedicated hot spare

Yes

No

No

N/A

Yes

Yes

Yes

Yes

Support for emergency spares

Yes

No

No

N/A

Yes

NA

NA

NA

Number of supported hot spare drives

16 or 32 (Note 2)

2

2

N/A

32 or 240 (Note 1)

6

2

2

Support for online RAID level migration

Yes

No

No

No

Yes

No

Yes

Yes

Support for online capacity expansion

Yes

No

No

No

Yes

No

Yes

Yes

Support for automatic SMART scan

Yes

Yes

Yes

Yes

Yes

No

Yes

Yes

Support for Patrol Read

Yes

Yes

Yes

No

Yes

Yes

Yes

Yes

Support for consistency check

Yes

Yes

Yes

No

Yes

Yes

Yes

Yes

Support for crypto encryption

No

No

No

No

No

No

No

No

Support for out-of-band management

No

No

No

Yes

Yes (Note 3)

No

No

Yes

Support for cache

Yes

No

No

N/A

Yes (1G/2G/4G)

No

No

No

Note 1: The LSI SAS3108 supports two types of RAID keys, which support 32 and 240 hard drives respectively. For details, see Table 2-2 in 8.2.1 .

Note 2: The LSI SAS2208 supports two types of RAID keys, which support 16 and 32 hard drives respectively. For details, see Table 2-2 in 5.2.1 .

Note 3: The LSI SAS3108 PCB version .B and later support out-of-band management. The LSI SAS3108 PCB version .A does not support out-of-band management.

Note 4:

Maximum number of hard drives in all RAID arrays (for an LSI SAS2308 or LSI SAS3008 RAID controller card) = Number of hot spare drives + Number of drives in RAID arrays

Maximum number of hard drives in all RAID arrays (for other RAID controller cards) = Number of hot spare drives + Number of idle drives (drives in Unconfigured Good state) + Number of hard drives in RAID arrays

The "N/A" in the table stands for not applicable.

Table 2-2 lists the reliability, read/write performance, and hard drive utilization of RAID levels supported by RAID controller cards.

Table 2-2 RAID level comparison

RAID Level

Reliability

Read Performance

Write Performance

Hard Drive Utilization

RAID 0

Low

High

High

100%

RAID 1

High

High

Medium

50%

RAID 5

Medium

High

Medium

(N – 1)/N

RAID 6

Medium

High

Medium

(N – 2)/N

RAID 10

High

High

Medium

50%

RAID 1E

High

Medium

Medium

50%

RAID 50

High

High

Better than medium

(N – M)/N

RAID 60

High

High

Better than medium

(N – M x 2)/N

Note: N indicates the number of member hard drives in a RAID array. M indicates the number of spans of a RAID array.

Table 2-3 lists the interface types of hard drives supported by each RAID controller card.

Table 2-3 Supported interface types of hard drives

Interface Type

SAS HDD

SATA HDD

SAS SSD

SATA SSD

NVMe PCIe SSD

M.2 SSD

LSI SAS2208

Supported

Supported

Supported

Supported

Not supported

Not supported

LSI SAS2308

Supported

Supported

Supported

Supported

Not supported

Not supported

LSI SAS3008IR

Supported

Supported

Supported

Supported

Not supported

Not supported

LSI SAS3008IT

Supported

Supported

Supported

Supported

Not supported

Not supported

LSI SAS3108

Supported

Supported

Supported

Supported

Not supported

Not supported

LSI Softraid

Not supported

Supported

Not supported

Supported

Not supported

Not supported

PM8060

Supported

Supported

Supported

Supported

Not supported

Not supported

PM8068

Supported

Supported

Supported

Supported

Not supported

Not supported

For details about the hard drive models supported by each RAID controller card, see the compatibility list in Intelligent Computing Compatibility Checker.

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Updated: 2019-11-01

Document ID: EDOC1000004186

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