Compaq AlphaServer DS20 Service Manual Page 135
- Page / 182
- Table of contents
- TROUBLESHOOTING
- BOOKMARKS
Rated. / 5. Based on customer reviews
Halts, Console Commands, and Environment Variables A-3
A.2
Using the Halt Button
Use the Halt button to halt the Compaq Tru64 UNIX or OpenVMS operating
system when it hangs or you want to use the SRM console. Use the Halt button to
force Windows NT systems to bring up the SRM console rather than booting or
halting in AlphaBIOS.
Using Halt to Shut Down the Operating System
You can use the Halt button if the Compaq Tru64 UNIX or OpenVMS operating
system hangs. Pressing the Halt button halts the operating system back to the SRM
console firmware. From the console, you can use the crash command to force a crash
dump at the operating system level.
The Windows NT operating system does not support halts on this system. Pressing
the Halt button during a Windows NT session has no effect.
Using Halt to Clear the Console Password
The SRM console firmware allows you to set a password to prevent unauthorized
access to the console. If you forget the password, the Halt button, with the login
command, lets you clear the password and regain control of the console. See Section
4.8 of your system User’s Guide.
- AlphaServer DS20 1
- Contents 3
- Chapter 3 Error Registers 4
- Appendix C Firmware Update 5
- Examples 5
- Intended Audience 9
- Document Structure 9
- Documentation Titles 10
- Information on the Internet 10
- System Overview 11
- Chapter 1 11
- System Enclosure 12
- PKW-0501-97 14
- System Consoles 16
- System Architecture 18
- CPU Types 20
- Figure 1-6 Memory Placement 22
- PK1488-98 24
- Example 1–1 Show Memory 25
- Interrupts 28
- Table 1-1 PCI Slot Numbering 31
- PK1410-99 32
- Table 1-2 Switchpack 2 33
- Table 1-3 Switchpack 3 33
- Server Feature Module 34
- 1.9.1 Power Control Logic 36
- PK1493-98 38
- Power Supply 40
- Power Up/Down Sequence 42
- Maintenance Bus (I 46
- Error State 47
- StorageWorks Drives 48
- System Overview 1-39 49
- Chapter 2 51
- Troubleshooting 51
- Testing an Entire System 59
- Other Useful Console Commands 61
- Troubleshooting with LEDs 62
- Compaq Analyze 64
- Continued on next page 67
- Table 2-2 Types of Errors 69
- Releasing Secure Mode 70
- Chapter 3 71
- Error Registers 71
- Ibox Status Register - I_STAT 72
- MM_STAT 73
- PK1416-99 75
- Cbox Read Register 77
- Miscellaneous Register (MISC) 79
- PK1418-99 82
- Pchip Error Register (PERROR) 83
- Failure Register 86
- Table 3-8 Failure Register 87
- Function Register 88
- Table 3-9 Function Register 89
- Chapter 4 91
- Removal and Replacement 91
- FRU List 92
- System Access 96
- CPU Removal and Replacement 98
- Figure 4-4 Removing Memory 100
- System Board 102
- Slot Cover 104
- Option Card 104
- Replacement 106
- PK1404-99 110
- PK1481 - 9 114
- Module Guides 116
- PKW0519A-97 118
- ➊ in Figure 119
- Replacement 120
- Figure 4-15 Removing CD-ROM 122
- PK1401-98 124
- PKW0501B-97 126
- PK1412-99 130
- Appendix A 133
- Halts, Console Commands, and 133
- Environment Variables 133
- Halt Button Functions 134
- Using the Halt Button 135
- Halt Assertion 136
- Appendix B 145
- Managing the System Remotely 145
- RCM Overview 146
- First-Time Setup 147
- ➊ in Example 148
- RCM Commands 149
- Using the RCM Switchpack 154
- Troubleshooting Guide 157
- Appendix C 159
- Firmware Update 159
- PK1461-98 160
- Diskettes 166
- Update 168
- (Continued) 170
- Internal Floppy Disk 171
- C.1.5 LFU Commands 176
Related products and manuals for Servers Compaq AlphaServer DS20
Servers Compaq PROLIANT DL760 Specifications
(115 pages)
(115 pages)
Servers Compaq ProLiant 1600 Specifications
(168 pages)
(168 pages)
Servers Compaq ProLiant DL388e Specifications
(125 pages)
(125 pages)
Servers Compaq 1200 Specifications
(132 pages)
(132 pages)
Servers Compaq ProLiant 8500 Specifications
(191 pages)
(191 pages)
Servers Compaq ProLiant BL20p User Manual
(48 pages)
(48 pages)
Servers Compaq AlphaServer ES40 Specifications
(240 pages)
(240 pages)
Servers Compaq ProSignia 500 Specifications
(23 pages)
(23 pages)
Servers Compaq 370 Installation Guide
(186 pages)
(186 pages)
Servers Compaq ProLiant SL165s Specifications
(117 pages)
(117 pages)
Servers Compaq ProLiant DL388p Specifications
(106 pages)
(106 pages)
© 2020, manymanuals.com. All rights reserved. | 1.663 s |
Manymanuals.com
Manymanuals.de
Manymanuals.fr
Manymanuals.it
Manymanuals.pl
Manymanuals.cz
Manymanuals.es
Manymanuals-pt.com
Comments to this Manuals