HP NetRAID Installation and Configuration Guide

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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.......................................... 6
Physical Disk Roaming and Data Migration ............................................... 7
Fault-Tolerance and Management Features .............................................. 8
Changing Capacity and RAID Levels......................................................... 8
About This Guide........................................................................................... 9
Other Information Sources............................................................................. 9
Tools You May Need ................................................................................... 10
2 RAID Overview........................................................................................... 11
RAID Overview ........................................................................................... 11
Physical Drive ......................................................................................... 11
Arrays...................................................................................................... 11
Hot Spare................................................................................................ 12
Logical Drive ........................................................................................... 12
Understanding RAID Levels......................................................................... 13
Arrays with No Redundancy: RAID Level 0.............................................. 14
Non-spanned Arrays with Redundancy: RAID Levels 1, 3, and 5 ............. 15
Spanned Arrays: RAID Levels 10, 30, and 50.......................................... 18
3 Installation and Configuration Overview ................................................. 25
4 Planning..................................................................................................... 27
Overview..................................................................................................... 27
Step A. Plan Your Hardware........................................................................ 27
Gather Information.................................................................................. 27
Sample Worksheet A............................................................................... 28
Multiple Adapters..................................................................................... 29
Slot Selection and Boot Order ................................................................. 29
Channels................................................................................................. 33
Step B. Plan Arrays and Logical Drives ....................................................... 34