Adaptec 412R User Guide - Page 6

DuraStor 7320SS only, Hubs Disabled Single-Port Hosts and One Switch

Page 6 highlights

Contents Common SCSI Bus Problems 6-3 Terminal Emulator and COM Port Problems 6-6 Host SCSI Channel Problems 6-8 Device SCSI Channel Problems 6-9 Problems During Bootup 6-9 Controller Problems 6-11 Common Problems and Interpreting the LEDs 6-12 Warning and Error Events 6-13 Warnings 6-13 Errors 6-15 Disk Errors 6-16 Disk Channel Errors 6-17 A Theory of Controller Operation Operating Modes Overview A-2 Operating Modes - DuraStor 6320SS A-4 Stand-Alone Mode A-4 Active-Active Mode A-7 Active-Passive Mode A-11 Operating Modes - DuraStor 7320SS A-14 Stand-Alone Mode A-14 Active-Active Mode A-16 Active-Passive Mode A-21 Understanding Mirrored Operations A-24 Clustering A-25 Minimizing Downtime for Maximum Data Availability A-25 How Available are Clusters? A-27 Application of Availability A-27 B SAN Solution Strategies (DuraStor 7320SS only) Active-Active Dual-Port Mode for SAN B-2 Hubs Enabled B-3 Hubs Disabled B-5 Active-Active Single-Port Mode for SAN B-7 Hubs Disabled (Single-Port Hosts and One Switch) B-7 v

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v
Contents
Common SCSI Bus Problems
6-3
Terminal Emulator and COM Port Problems
6-6
Host SCSI Channel Problems
6-8
Device SCSI Channel Problems
6-9
Problems During Bootup
6-9
Controller Problems
6-11
Common Problems and Interpreting the LEDs
6-12
Warning and Error Events
6-13
Warnings
6-13
Errors
6-15
Disk Errors
6-16
Disk Channel Errors
6-17
A
Theory of Controller Operation
Operating Modes Overview
A-2
Operating Modes – DuraStor 6320SS
A-4
Stand-Alone Mode
A-4
Active-Active Mode
A-7
Active-Passive Mode
A-11
Operating Modes – DuraStor 7320SS
A-14
Stand-Alone Mode
A-14
Active-Active Mode
A-16
Active-Passive Mode
A-21
Understanding Mirrored Operations
A-24
Clustering
A-25
Minimizing Downtime for Maximum Data
Availability
A-25
How Available are Clusters?
A-27
Application of Availability
A-27
B
SAN Solution Strategies
(DuraStor 7320SS only)
Active-Active Dual-Port Mode for SAN
B-2
Hubs Enabled
B-3
Hubs Disabled
B-5
Active-Active Single-Port Mode for SAN
B-7
Hubs Disabled (Single-Port Hosts and One Switch)
B-7