Contents

5.2

Changing the Date and Time

43

5.3

Understanding LUNs and Viewing LUN Information

43

5.3.1

Viewing LUN Information

44

5.4

Changing Management LUNs

44

5.5

Changing the Alarm Mute Setting

44

5.6

Controlling Host Access to the Galaxy 65’s Write-back Cache Setting

45

5.7

Enabling and Disabling the Battery

46

5.8

Changing the Utility Priority

46

5.9

Rescanning All Ports

47

5.10

Pausing I/O

47

5.11

Saving and Restoring a Configuration File

48

5.11.1

Saving a Configuration File

48

5.11.2

Restoring a Configuration File

48

5.12

Viewing and Restoring Default Settings

50

5.12.1

Viewing Default Settings

50

5.12.2

Restoring Default Settings

50

5.13

Updating Software

51

6 Managing Disk Drives & Enclosures

53

6.1

Managing Disk Drives

53

6.1.1

Displaying Disk Drive Information

53

6.1.2

Clearing Metadata from a Disk Drive

54

6.1.3

Enabling and Disabling Write-back Cache

55

6.1.4

Displaying Disk Drive Cache Status

55

6.1.5

Enabling and Disabling SMART Changes

55

6.1.6

Blinking a Drive LED

56

6.1.7

Taking Down a Disk Drive

56

6.1.8

Testing a Disk Drive

57

6.2

Managing Enclosures

57

6.2.1

Setting the EMP LUN

57

6.2.2

Changing the Additional EMP Setting

58

7 Troubleshooting and Problem Solving

59

7.1

Overview

59

7.1.1

Initial Start-up Problems

59

7.2

LEDs

..........................................................................................................................................

60

7.2.1

Power Supply/Cooling Module

60

7.2.2

Ops Panel

60

7.3

Audible Alarm

61

7.3.1

Audible Alarm Mute

61

7.4

Troubleshooting

62

7.4.1

System Faults

63

7.4.2

Power Supply/Cooling Faults

63

7.4.3

Thermal Control

64

7.4.4

Thermal Alarm

65

7.5

Drive Carrier Module Faults

65

7.5.1

Dummy Carrier Modules

65

7.5.2

Auto Start Failure

66

7.6

Dealing with Hardware Faults

66

7.7

Continuous Operation During Replacement

66

7.8

Problems Accessing the Galaxy 65 Subsystem Using the Ethernet Port

66

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Galaxy Metal Gear 65 manual Managing Disk Drives & Enclosures, Troubleshooting and Problem Solving