iii
Contents
1
Introduction
..................................................................................................
1
HP NetRAID Series Adapters
.........................................................................
1
Features of the HP NetRAID Series Adapters
................................................
2
Channels and Devices
...............................................................................
2
Adapter Hardware and Battery-backed Cache
............................................
5
SCSI Termination and Firmware
................................................................
6
New Features of HP NetRAID Series Adapters
..........................................
7
Physical Disk Roaming and Data Migration
................................................
8
Fault-Tolerance and Management Features
...............................................
8
Changing Capacity and RAID Levels
.........................................................
9
About This Guide
...........................................................................................
9
Other Information Sources
...........................................................................
10
Tools You May Need
....................................................................................
10
2
RAID Overview
...........................................................................................
13
RAID Overview
............................................................................................
13
Physical Drive
..........................................................................................
13
Arrays
......................................................................................................
13
Hot Spare
................................................................................................
14
Logical Drive
............................................................................................
14
Understanding RAID Levels
.........................................................................
15
Arrays with No Redundancy: RAID Level 0
..............................................
16
Non-spanned Arrays with Redundancy: RAID Levels 1, 3, and 5
..............
17
Spanned Arrays: RAID Levels 10, 30, and 50
..........................................
20
3
Installation and Configuration Overview
..................................................
27
4
Planning
.....................................................................................................
29
Overview
.....................................................................................................
29
Step A. Plan Your Hardware
........................................................................
29
Gather Information
...................................................................................
29
Sample Worksheet A
...............................................................................
30
Multiple Adapters
.....................................................................................
31
Slot Selection and Boot Order
..................................................................
31
Channels
.................................................................................................
32
Step B. Plan Arrays and Logical Drives
........................................................
33