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7.2 Operating Modes
The RMC can be configured to manage different data flow paths defined by the
com1_mode environment variable. In Through mode (the default), all data and
control signals flow from the system COM1 port through the RMC to the active
external port. You can also set bypass modes so that the signals partially or completely
bypass the RMC. The com1_mode environment variable can be set from either SRM
or the RMC. See Section 7.11.
Figure 7–1 Data Flow in Through Mode
Zircon
RMC
Internal
COM 1 Port UART
External
COM 1 Port UART
DUART
PC16552D
Internal COM1
(to Acer)
External
COM1
SRM Console/
Operating
System
Modem
RMC>
Local Serial Terminal
or Terminal Emulator
RMC>
Remote Serial Terminal
or Terminal Emulator
OR
RMC Modem
Port (Remote)
MR0535
7-4 hp AlphaServer/AlphaStation DS15 Service Guide
- Service Guide 1
- Contents 5
- Preface 15
- Documentation Titles 16
- Information on the Internet 16
- Chapter 1 17
- System Overview 17
- System Overview 1-3 19
- 1.2 Common Components 21
- 1.3 Front View 22
- 1.4 Top View 24
- 1.5 Rear Ports and Slots 26
- 1.6 Network Connections 28
- 1.7 Operator Control Panel 30
- 1.8 System Motherboard 32
- 1.10 Storage Cage Options 36
- 1.11 Console Terminal 40
- System Overview 1-25 41
- 1.12 Power Connection 42
- 1.13 System Access Lock 44
- Chapter 2 45
- Troubleshooting 45
- 2.1 Questions to Consider 46
- 2.2 Diagnostic Categories 47
- 2.2.1 Error Beep Codes 48
- Table 2–2 OCP Switches 49
- 2.2.3 Power Problems 51
- Symptom Action 52
- Troubleshooting 2-9 53
- 2.2.6 Boot Problems 54
- 2.2.8 Memory Problems 56
- 2.2.9 PCI Bus Problems 57
- 2.2.10 SCSI Problems 58
- 2.3.3 Required Firmware 61
- 2.4 Updating Firmware 62
- Troubleshooting 2-19 63
- 2.5.2 Loopback Tests 64
- 2.5.3 SRM Console Commands 64
- 2.5.5 Crash Dumps 65
- 2.6.1 Installing Q-Vet 68
- 2.6.2 Running Q-Vet 70
- Analyzer” 72
- 2.6.4 De-Installing Q-Vet 73
- 2.7 Information Resources 74
- 2.7.4 Fail-Safe Booter 75
- 2.7.5 Software Patches 75
- 2.7.6 Learning Utility 75
- 2.7.8 Supported Options 75
- Chapter 3 77
- 1.65V enable 80
- 3.3 Power-Up Displays 81
- Power-Up Sequence 82
- 3.3.3 SRM Console Event Log 86
- 3.4 Power-Up Error Messages 88
- 3.4.1 Checksum Error 89
- 3.6 Updating the RMC 95
- Chapter 4 97
- SRM Console Diagnostics 97
- Command Function 99
- 4.2 Buildfru 100
- Options 103
- 4.3 cat el and more el 104
- 4.4 clear_error 105
- 4.5 crash 106
- 4.6 deposit and examine 107
- 4.7 exer 111
- last read or write 114
- 4.8 grep 116
- 4.9 hd 118
- 4.10 info 120
- >>> info 1 122
- Example 4–10 info 2 123
- Example 4–11 info 3 124
- Example 4–12 info 4 125
- Example 4–13 info 5 127
- Example 4–14 info 6 130
- Example 4–15 info 7 132
- Example 4–16 info 8 134
- 4.11 kill and kill_diags 135
- 4.12 memexer 136
- [number] 137
- 4.13 memtest 138
- Starting address 139
- 4.14 net 143
- <port_name> 144
- 4.15 nettest 145
- 4.16 set sys_serial_num 148
- 4.17 show error 149
- 4.18 show fru 151
- 4.19 show_status 154
- 4.20 sys_exer 156
- 4.21 test 158
- Chapter 5 161
- Error Logs 161
- (Continued 167
- 5.1.3 Bit to Text 168
- Error Logs 5-9 169
- Error Logs 5-11 171
- Error Logs 5-13 173
- Chapter 6 179
- 6.1 System Consoles 180
- Attributes Description 186
- Continued on next page 187
- Continued on next page 188
- >>> init 192
- 6.6 Setting SRM Security 194
- 6.7 Configuring Devices 197
- 6.7.1 CPU Location 198
- 6.7.2 Memory Configuration 199
- Unstacked 200
- A 2 1 7 204
- 2 8 204
- 3 9 204
- 4 10 204
- 6.8 Booting Linux 206
- Chapter 7 209
- Using the Remote 209
- Management Console 209
- 7.1 RMC Overview 210
- RMC Modem 212
- Port (Remote) 212
- 7.2.1 Bypass Modes 214
- 7.3 Terminal Setup 217
- 7.5 Entering the RMC 219
- Field Meaning 223
- 7.11 RMC Command Reference 243
- 7.12 Troubleshooting Tips 252
- Chapter 8 255
- FRU Removal and Replacement 255
- 8.3 Recommended Spares 259
- 8.3.1 Power Cords 261
- 8.4 FRU Locations 262
- 8.5 Removing the Top Cover 264
- 8.6 Removing the Side Panel 266
- 8.7 Replacing the PCI Fan 268
- 8.8 Replacing the CPU Fan 270
- LED is off 276
- V @ >240 284
- V @ >240VA 303
- DIMM Connector Array 305
- 8.23 Replacing the Speaker 314
- Appendix A 327
- A.1 Location of Jumpers 328
- A.2 Function of Jumpers 329
- None Always bypass the RMC 331
- A.3 Setting Jumpers 332
- Appendix B 333
- Isolating Failing DIMMs 333
- (Continued) 343
- B.3 EV68 Single-Bit Errors 344
- Index-1 347
- Index-2 348
- Index-3 349
- Index-4 350
- Index-5 351
- Index-6 352
- Index-7 353
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