NEC N8103-89 User Manual page 73

Contents
Chapter 1 Overview ........................................................................................................... 55
1. Notes on Use - Always Follow These Notes - ............................................................................ 55
1-1. Installation of WebPAM....................................................................................................... 55
1-2. Preventive Maintenance by Media Patrol/Synchronization ................................................. 55
2. Specification ............................................................................................................................... 56
3. Features of Disk Array Controller ............................................................................................... 57
4. Names and Functions of Sections.............................................................................................. 58
5. Hardware Setup ......................................................................................................................... 60
5-1. Prepare for setup ................................................................................................................ 61
5-2. Selecting and Installing Bracket.......................................................................................... 62
5-3. Installing the Disk Array Controller...................................................................................... 63
5-4. Connecting LED and SATA Cables..................................................................................... 64
5-5. Installing Additional HDD Cage........................................................................................... 65
5-6. Connecting I2C Cable......................................................................................................... 65
5-7. Forming Cables .................................................................................................................. 66
Chapter 2 RAID ................................................................................................................. 68
1. Overview of RAID....................................................................................................................... 68
1-1. What is RAID (Redundant Array of Inexpensive Disks)? .................................................... 68
1-2. RAID Levels........................................................................................................................ 69
1-3. Logical Drive....................................................................................................................... 70
1-4. Parity .................................................................................................................................. 70
1-5. Hot-Swap............................................................................................................................ 70
1-6. Hot-Spare Disk ................................................................................................................... 71
2. RAID Levels ............................................................................................................................... 72
2-1. Characteristics of RAID Levels ........................................................................................... 72
2-2. RAID0 ................................................................................................................................. 72
2-3. RAID1 ................................................................................................................................. 73
2-4. RAID5 ................................................................................................................................. 73
2-5. RAID10 ............................................................................................................................... 74
Chapter 3 Features of Disk Array Controller ...................................................................... 75
1. Rebuild ....................................................................................................................................... 75
1-1. Manual Rebuild................................................................................................................... 75
1-2. Auto Rebuild ....................................................................................................................... 75
2. Media Patrol ............................................................................................................................... 77
3. Synchronization.......................................................................................................................... 78
4. Expansion .................................................................................................................................. 79
Chapter 4 Lamp Indications ............................................................................................... 81
1. Indications of Lamps on Server.................................................................................................. 81
2. Indications of Disk Lamps on Trays............................................................................................ 82