Logic MegaRAID Express User's Guide
Table Of Contents
- 1 Overview
- 2 Introduction to RAID
- 3 RAID Levels
- 4 Features
- 5 Configuring MegaRAID Express 500
- 6 Hardware Installation
- Checklist
- Installation Steps
- Summary
- 7 Cluster Installation and Configuration
- Software Requirements
- Hardware Requirements
- Installation and Configuration
- Driver Installation Instructions under Microsoft Windows 2000 Advanced Server
- Network Requirements
- Shared Disk Requirements
- Cluster Installation
- Installing the Windows 2000 Operating System
- Setting Up Networks
- Configuring the Cluster Node Network Adapter
- Configuring the Public Network Adapter
- Verifying Connectivity and Name Resolution
- Verifying Domain Membership
- Setting Up a Cluster User Account
- Setting Up Shared Disks
- Configuring Shared Disks
- Assigning Drive Letters
- Verifying Disk Access and Functionality
- Cluster Service Software Installation
- Configuring Cluster Disks
- Validating the Cluster Installation
- Configuring the Second Node
- Verify Installation
- SCSI Drive Installations
- Configuring the SCSI Devices
- Terminating the Shared SCSI Bus
- 8 Troubleshooting
- A SCSI Cables and Connectors
- B Audible Warnings
- C Cluster Configuration with a Crossover Cable
- Glossary
- Index
Preface
iii
Table of Contents
1 Overview .................................................. 1
Single Ended and Differential SCSI Buses....................... 2
Maximum Cable Length for SCSI Standards.................... 2
Documentation.................................................................. 3
MegaRAID Express 500 Block Diagram..........................4
2 Introduction to RAID................................ 5
RAID Benefits .................................................................. 5
In This Chapter ................................................................. 6
MegaRAID Express 500 – Host-Based RAID Solution ... 7
RAID Overview................................................................ 8
Fault Tolerance................................................................. 8
Consistency Check............................................................ 8
Disk Rebuild.....................................................................9
Hot Spares ...................................................................... 10
Hot Swap ........................................................................ 10
Parity .............................................................................. 11
Disk Striping................................................................... 12
Disk Mirroring................................................................ 13
Disk Spanning................................................................. 14
Logical Drive.................................................................. 15
Logical Drive States ....................................................... 15
SCSI Drive States ........................................................... 15
Disk Array Types............................................................ 16
Enclosure Management................................................... 16
3 RAID Levels............................................ 17
Selecting a RAID Level.................................................. 18
RAID 0 ........................................................................... 19
RAID 1 ........................................................................... 20
RAID 3 ........................................................................... 21
RAID 5 ........................................................................... 23
RAID 10 ......................................................................... 24
RAID 30 ......................................................................... 25
RAID 50 ......................................................................... 26