Galaxy 65 User Guide

7.9

Host Fibre Channel Problems

67

7.10

Array Problems

68

7.10.1

Changing the Backoff Percent Using SAM

68

7.10.2

Changing the Backoff Percent Using the Disk Array Administrator

68

7.11 Galaxy 65 Subsystem Problems

69

7.12

Replacing a Module

69

7.12.1

Power Supply/Cooling Modules

69

7.12.2

Ops Panel

72

7.12.3

Storage Manager Module

72

7.12.4

Insertion/Removal of SFP Modules

74

7.12.5

Battery Replacement

74

7.12.6

Drive Carrier Module

75

7.13

Problems During Startup (When Using the Disk Array Administrator)

75

7.14

Terminal Emulator and COM Port Problems

76

7.15

Warning and Error Events

77

7.15.1

Warnings

78

7.15.2

Errors

80

7.16

Setting Up and Viewing the Debug Log

81

7.16.1

Summary of Debug Log Capabilities

81

7.16.2

Collecting Debug Logs

81

7.16.3

Configuring Debug Logs

82

7.16.4

Using SAM to Set Up and View the Debug Log

83

7.16.5

Using the Disk Array Administrator to Set Up Debug Logging

83

7.17

Using the Loader Diagnostics Menu

83

7.18

Using the Loader Utility Menu

84

7.19

Understanding Disk-related Errors

84

7.19.1

Disk Errors

84

7.19.2

Disk Channel Errors

85

7.19.3

Voltage and Temperature Errors and Warnings

86

7.20

Slow Write Performance

86

7.21

Spare Parts and Ancillary Items

87

7.22 Upgrading Your LRC I/O Modules

87

A Array Basics

89

A.1

Array Types

90

A.1.1

RAID 0 (Striped Disks)

90

A.1.2

RAID 1, RAID 10 (Mirrored Disks)

90

A.1.3

RAID 3

90

A.1.4

RAID 4

91

A.1.5

RAID 5

91

A.1.6

RAID 50

91

A.1.7

Volume Sets

91

A.2

Comparing RAID Levels

92

A.3

Mixing Disks from Different Manufacturers or with Different Capacities

93

B Accessing Disk Array Administrator Software

95

B.1

Accessing the Disk Array Administrator Using the RS-232 Serial Port

96

B.2

Accessing the Disk Array Administrator Using the Ethernet Port

98

B.2.1

Using the Ethernet Port for the First Time

98

B.2.2

Accessing the Disk Array Software Using the Ethernet Port

99

B.3

Navigating the Disk Array Administrator Software

101

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Galaxy Metal Gear 65 manual Array Basics, Accessing Disk Array Administrator Software