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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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Overview

Overview

The LSI SAS2208 controller card is a 6 Gbit/s SAS controller with the MegaRAID architecture. Equipped with PCIe 3.0 x8 ports and a powerful I/O storage engine, the controller card handles data protection, verification, and restoration.

In addition to better system performance, the controller card supports fault-tolerant data storage in multiple hard drive partitions and read/write operations on multiple hard drives at the same time. This makes accessing data on hard drives faster.

The LSI SAS2208 supports boot and configuration in legacy and UEFI modes.

The built-in cache improves performance as follows:

  • Data is directly written to the cache. The controller card then updates accumulated cache data to hard drives in batches. Overall data write speed is higher since writing to the cache is faster than writing to the hard drive.
  • Data is directly read from the cache, reducing the response time from 6 ms to less than 1 ms.
  • The supercapacitor or integrated battery backup unit (iBBU) connected to the controller card provides power failure protection for the cache. For details about the supercapacitor or iBBU, see the maintenance guide or troubleshooting guide of the server.
  • The supercapacitor must be used with a trans flash module (TFM). Table 4-1 describes the indicators on the TFM.

The LSI SAS2208 has two structures to provide ease of connection in different servers:

  • LSI SAS2208 for a rack server or X8000/X6800 server

    The LSI SAS2208 connects to the mainboard through an Xcede connector and connects to the hard drive backplane by using two mini-SAS cables, as shown in Figure 4-1.

The LSI SAS2208 for the DH320 V2 node does not provide the mini-SAS ports.

  • LSI SAS2208 for a blade server or X6000 server

    The LSI SAS2208 connects to the mainboard through two Xcede connectors, as shown in Figure 4-2.

The LSI SAS2208 can also be integrated into the mainboard of a server, as in the XH321 V2 and DH321 V2 nodes.

Figure 4-1 LSI SAS2208 for a rack server or X8000/X6800 server

Figure 4-2 LSI SAS2208 for a blade server or X6000 server

1

TFM fault indicator

2

TFM status indicator

3

TFM power indicator

4

TFM (for supercapacitor)

5

Supercapacitor port

6

iBBU port

7

Supercapacitor

8

RAID controller card

9

Xcede connector

10

Mini-SAS port

Table 4-1 TFM indicators

Indicator

Color

Description

TFM power indicator (PWR)

Green

  • On: The supercapacitor is activated and powering the cache.
  • Off: The supercapacitor does not provide power.

TFM status indicator (STAT)

Blue

  • On: Data is being read from or written to the cache.
  • Off: No read/write operation is executed on the cache.

TFM fault indicator (FLT)

Orange

  • On: The supercapacitor is faulty.
  • Off: The supercapacitor is working properly.

Indicators

Table 4-2 describes the indicators on the LSI SAS2208.

Figure 4-3 LSI SAS2208 indicators
Table 4-2 Indicator description

SN

Location

Indicator

Color

Description

Handling Suggestions

1

D7

VCC_1V05 power indicator

Green

On: The voltage is regular.

Off: The voltage is irregular.

If this indicator is off, replace the RAID controller card.

2

D9

Global drive fault indicator

Red

On: The RAID controller card firmware is abnormal.

Off: The RAID controller card firmware is normal.

If this indicator is on, replace the RAID controller card.

3

D8

Write Pending indicator

Red

On: The cache of the RAID controller card has data.

Off: The cache of the RAID controller card has no data.

N/A

4

D6

VCC_1V5 power indicator

Green

On: The voltage is regular.

Off: The voltage is irregular.

If this indicator is off, replace the RAID controller card.

5

D1004

SYS_ERR1 indicator

Red

On: The ERR1 alarm was generated on the RAID controller card.

Off: The RAID controller card is working properly.

If this indicator is on, replace the RAID controller card.

6

D1003

SYS_ERR0 indicator

Red

On: The ERR0 alarm was generated on the RAID controller card.

Off: The RAID controller card is working properly.

If this indicator is on, replace the RAID controller card.

7

D1005

Heartbeat indicator

Green

Blinking: The heartbeat signal of the RAID controller card is normal.

Off: The heartbeat signal of the RAID controller card is abnormal.

If this indicator is off, replace the RAID controller card.

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Updated: 2019-11-01

Document ID: EDOC1000004186

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