Contents

1. Introduction

10

1.1 Overview

10

1.2 Features

12

1.3 RAID Concept

15

1.3.1 RAID Set

15

1.3.2 Volume Set

15

1.3.3 Ease of Use Features

16

1.3.3.1

Foreground Availability/Background Initialization

16

1.3.3.2

Array Roaming

16

1.3.3.3

Online Capacity Expansion

17

1.3.3.4

Online RAID Level and Stripe Size Migration

19

1.3.3.5 Online Volume Expansion

19

1.4 High availability

20

1.4.1 Global Hot Spares

20

1.4.2 Hot-Swap Disk Drive Support

21

1.4.3 Auto Declare Hot-Spare

21

1.4.4 Auto Rebuilding

21

1.4.5 Adjustable Rebuild Priority

22

1.5.1 Hard Drive Failure Prediction

23

1.5.2 Auto Reassign Sector

23

1.5.3 Consistency Check

24

1.6 Data Protection

24

1.6.1 BATTERY BACKUP

24

1.6.2 RECOVERY ROM

25

1.7 Understanding RAID

25

1.7.1 RAID 0

25

1.7.2 RAID 1

26

1.7.3 RAID 1E

27

1.7.4 RAID 3

27

1.7.5 RAID 5

28

1.7.6 RAID 6

29

2. Hardware Installation

32

2.1

Before Your begin Installation

32

2.2

Board Layout

33

2.3

Installation

39

3. McBIOS RAID Manager

56

3.1 Starting the McBIOS RAID Manager

56

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Areca ARC-1120, ARC-1110, ARC-1130, ARC-1231ML/1261ML/1280ML manual Contents