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HARDWARE
GUIDE
MegaRAID
®
SCSI
320-0
Zero-Channel
RAID
Controller
S e p t e m b e r 2 0 0 2
®
Contents
HARDWARE
GUIDE
Page
FCC Regulatory Statement
Warning:
Disclaimer –
Page
Preface
Hardware Installation
Troubleshooting
Audible Warnings
Technical Support
MegaRAID Problem Report
MegaRAID Problem Report Form (Cont.)
Logical Drive Configuration
Logical Drive Configuration (Cont.)
Physical Device Layout
Physical Device Layout (Cont.)
Page
Page
Contents
Page
Configuring Physical Drives, Arrays, and Logical Drives
Page
Overview
1.1Features
1.2NVRAM and Flash ROM
1.3Single-Endedand Differential SCSI Buses
1.4Maximum Cable Length for SCSI Standards
1.5SCSI Bus Widths and Maximum Throughput
1.6Documentation
1.6.1MegaRAID SCSI 320-0ZCR Hardware Guide
1.6.2MegaRAID Configuration Software Guide
1.6.3MegaRAID Operating System Driver Installation Guide
Page
Introduction to RAID
2.1RAID Benefits
2.1.1Improved I/O
2.1.2Increased Reliability
2.2MegaRAID SCSI 320-0– Host-BasedRAID Solution
2.2.1Host-BasedRAID
2.2.2SCSI-to-SCSIExternal RAID
2.3RAID Overview
2.3.1Physical Array
2.3.2Logical Drive
2.3.3Consistency Check
2.3.4Fault Tolerance
2.3.5Disk Striping
Figure 2.1 Disk Striping
2.3.5.1Stripe Width
2.3.6Disk Mirroring
2.3.7Disk Spanning
2.3.8Parity
2.3.9Hot Spares
2.3.10 Hot Swapping
2.3.11 Disk Rebuild
2.3.12 Logical Drive States
2.3.13 SCSI Drive States
2.3.14 Disk Array Types
2.3.15 Enclosure Management
Page
RAID Levels
3.1Selecting a RAID Level
3.2RAID
3.3RAID
3.4RAID
Figure 3.3 RAID 5 Array
3.5RAID
3.6RAID
Figure 3.5 RAID 50 Array
Features
4.1SMART Technology
4.2Configuration on Disk
4.3Configuration Features
4.4Array Performance Features
4.5RAID Management Features
4.6Fault Tolerance Features
4.7Software Utilities
4.8Operating System Software Drivers
4.9MegaRAID SCSI 320-0Specifications
4.9.1PCI Bridge/CPU
4.9.2Cache Memory
4.9.3MegaRAID BIOS
4.9.4SCSI Firmware
4.10 RAID Management
4.10.1MegaRAID BIOS Configuration Utility
4.10.2 WebBIOS Configuration Utility
4.10.3 Power Console Plus
4.10.4 MegaRAID Manager
4.11 Compatibility
4.11.1Server Management
4.11.2 SCSI Device Compatibility
4.11.3 Software
Page
Configuring Physical Drives
Arrays, and Logical Drives
5.1Configuring SCSI Physical Drives
5.1.1Basic Configuration Rules
5.1.2Current Physical Device Configuration
5.1.3Logical Drive Configuration
Page
5.1.4Physical Device Layout
Table 5.3 Physical Device Layout (Cont.)
Page
5.2Configuring Arrays
5.2.1Arranging Arrays
5.2.2Creating Hot Spares
5.3Creating Logical Drives
5.3.1Configuration Strategies
Capacity for RAID Levels (Cont.)
5.3.1.2Maximizing Drive Availability
Fault Tolerance for RAID Levels
5.3.1.3Maximizing Drive Performance
5.3.2Assigning RAID Levels
5.4Configuring Logical Drives
5.4.1Optimizing Data Storage
5.5Planning the Array Configuration
5.5.1Using the Array Configuration Planner
Array Configuration Planner
Array Configuration Planner (Cont.)
Page
Hardware Installation
6.1Hardware Requirements
6.2Installation Steps
6.2.1Step 1: Unpack
6.2.2Step 2: Power Down
6.2.3Step 3: Set Jumpers
Figure 6.1 MegaRAID SCSI 320-0Controller Layout
6.2.3.1J2 Dirty Cache LED
6.2.3.2J3 Clear EPROM
6.2.3.3J4 BIOS Enable
Table 6.3 Pinout for J4 BIOS Enable
6.2.4Step 4: Install MegaRAID SCSI
6.2.5Step 5: Power Up
6.2.6Step 6: Run the MegaRAID BIOS Configuration Utility
6.2.7Step 7: Install the Operating System Driver
6.3Summary
Troubleshooting
7.1General Troubleshooting
General Problems and Suggested Solutions (Cont.)
7.2BIOS Boot Error Messages
7.3Other BIOS Error Messages
7.4Other Potential Problems
Other Potential Problems (Cont.)
Appendix A
Audible Warnings
Page
Appendix B Glossary
Channel
Consistency
Check
Cold Swap
Data Transfer
Disk Subsystem
Double Buffering
Failed Drive
Fast SCSI
Firmware
Host Computer
Hot Spare
Hot Swapping
I/O Driver
Initialization
Mbyte
Multi-threaded
Operating Environment
Parity
Partition
RAID
RAID Migration
Read-Ahead
Ready State
Rebuild
Redundancy
Replacement
Unit
SAF-TE
SCSI
Service Provider
SNMP
Spanning
Spare
Striping
Ultra320
Virtual Sizing
Wide SCSI
Page
Index
Page
Page
Page
Customer Feedback
Reader’s Comments