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Maintaining a System
2-6 Fault Tolerant System Administration (R1004H) HP-UX version 11.00.03
Tracking and Fixing System Problems
An important function of a system administrator is to identify and fix problems
that occur in the hardware, software, or network while the system is in normal use.
Continuum systems are designed specifically for continuous availability, so you
should experience fewer system problems than with other systems running the
HP-UX operating system. Nevertheless, there are a variety of potential problems
in any system, such as the following:
■ Users cannot log in.
■ Users cannot access applications or data.
■ File systems cannot be mounted.
■ Disks or file systems become full.
■ Data is lost.
■ File systems become corrupted.
■ Users cannot access network services.
■ Users cannot access printers.
■ System performance decreases.
■ System becomes unresponsive.
By regularly monitoring system performance and use, maintaining good
administrative records, and following the guidelines in this chapter, you can limit
the scope and severity of problems.
- HP-UX Operating System: 1
- Contents 3
- Revision Information 13
- Audience 13
- Notation Conventions 13
- Product Documentation 16
- Online Documentation 17
- Related Documentation 18
- Ordering Documentation 19
- Commenting on This Guide 19
- Getting Started 1 21
- Using This Manual 22
- Console Controller 25
- Fault Tolerant Design 26
- Duplexed Components 27
- Solo Components 28
- Setting Up the System 2 29
- Installing a System 30
- Configuring a System 30
- Maintaining a System 33
- Overview of the Boot Process 35
- Modifying CONF Variables 40
- Sample CONF Files 41
- Modifying the CONF File 42
- Booting Process Commands 43
- CPU PROM Commands 44
- Primary Bootloader Commands 45
- Booting the System 50
- Issuing Console Commands 51
- <Return> 52
- Manually Booting Your System 53
- <Return> to continue 55
- Shutting Down the System 57
- Using SAM 58
- Using Shell Commands 58
- Changing to Single-User State 59
- Rebooting the System 59
- Halting the System 60
- Activating a New Kernel 61
- Dealing with Power Failures 63
- Managing Flash Cards 65
- Flash Card Utility Commands 66
- Creating a New Flash Card 68
- Duplicating a Flash Card 68
- Mirroring Data 4 69
- Sample Mirror Configuration 71
- Recommended Volume Structure 71
- HP-UX version 11.00.03 5-1 79
- Using Hardware Utilities 80
- Determining Hardware Paths 80
- I/O Subsystem Paths 86
- ■ the logical cabinet 87
- ■ the logical CPU/memory 87
- Defining a Logical SCSI Bus 93
- Determining Component Status 100
- Software State 101
- Hardware Status 103
- Managing Hardware Devices 104
- Error Detection and Handling 105
- Disabling a Hardware Device 106
- Enabling a Hardware Device 106
- Correcting the Error State 106
- Managing MTBF Statistics 107
- Displaying MTBF Information 108
- Clearing the MTBF 108
- Changing the MTBF Threshold 109
- Error Notification 110
- Remote Service Network 111
- Status Lights 111
- Console and syslog Messages 112
- Status Messages 112
- Analyzing System Status 112
- Modifying System Resources 113
- Fault Codes 114
- Saving Memory Dumps 119
- Space Issues 120
- Configuring save_mcore 123
- Configuration 125
- Kernel Configuration area 125
- Analyzing the Dumps 129
- Preventing the Loss of a Dump 130
- Remote Service Network 6 131
- How the RSN Software Works 132
- Using the RSN Software 134
- Starting the RSN Software 135
- Checking Your RSN Setup 136
- Stopping the RSN Software 137
- Sending Mail to the HUB 138
- Validating Incoming Calls 139
- Testing the RSN Connection 139
- Listing RSN Requests 139
- Cancelling an RSN Request 140
- RSN Command Summary 141
- RSN Files and Directories 142
- Communication Queues 143
- Other RSN-Related Files 145
- Remote STREAMS Environment 7 147
- Configuring the Host 149
- Remote STREAMS Environment 150
- Customizing the orsdinfo File 152
- Downloading Firmware 153
- Adding or Moving a Card 155
- New and Customized Software 159
- Console Interface 160
- Flash Cards 160
- Remote Service Network (RSN) 161
- New and Customized Commands 162
- Updating PROM Code B 163
- Updating PROM Code 163
- Updating CPU/Memory PROM Code 165
- Downloading I/O Card Firmware 172
- IndexIndex 173
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Sítě EUROLOGIC Voyager 3000 Uživatelský manuál
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