Sun Microsystems 440 Note

Chapter 1 Configuring the System Console 27

5. If you want to use ttyb instead of the serial management port, do the following:

a. Redirect the system console by changing the OpenBoot configuration variables.

At the ok prompt, type the following commands:

Note – You can only access the sc> prompt and view POST messages from either

the serial management port or the network management port.

Note – There are many other OpenBoot configuration variables. Although these

variables do not affect which hardware device is used to access the system console,

some of them affect which diagnostic tests the system runs and which messages the

system displays at its console. For details, refer to the Netra 440 Server Diagnostics

and Troubleshooting Guide (817-3886-xx).

b. To cause the changes to take effect, power off the system. Type:

The system permanently stores the parameter changes and powers off.

Note – You can also power off the system using the front panel Power button.

c. Connect the null modem serial cable to the ttyb port on the Netra 440 server.

If required, use the DB-9 or DB-25 cable adapter supplied with the server.

d. Power on the system.

Refer to the Netra 440 Server Installation Guide for power-on procedures.

You can issue system commands and view system messages using the alphanumeric

terminal. Continue with your installation or diagnostic procedure, as needed. When

you are finished, type the alphanumeric terminal’s escape sequence.

For more information about connecting to and using the ALOM system controller,

refer to the Advanced Lights Out Manager User’s Guide (817-5481-xx).

If you have redirected the system console to ttyb and want to change the system

console settings back to use the serial management and network management ports,

see “System Console OpenBoot Configuration Variable Settings” on page 31.

ok setenv input-device ttyb

ok setenv output-device ttyb

ok power-off

Contents

Main Page Contents Page Page Page Figures Page Tables Page Preface How This Book Is Organized Using UNIX Commands Shell Prompts Typographic Conventions Related Documentation AaBbCc123 Page Configuring the System Console Communicating With the System Page What the System Console Does Using the System Console Default System Console Connection Through the Serial Management and Network Management Ports Page Alternative System Console Configuration Accessing the System Console Through a Graphics Monitor Note About the sc> Prompt Note Access Through Multiple Controller Sessions Reaching the sc> Prompt OpenBoot ok Prompt Reaching the ok Prompt Graceful Shutdown ALOM System Controller break or console Command L1-A (Stop-A) Keys or Break Key Note Externally Initiated Reset (XIR) Caution Manual System Reset Caution Getting to the ok Prompt Caution To Get to the ok Prompt Switching Between the ALOM System Controller and the System Console Note Accessing the System Controller Using the Serial Management Port To Use the Serial Management Port Activating the Network Management Port Note To Activate the Network Management Port Accessing the System Console Through a Terminal Server To Access The System Console Through a Terminal Server Page Note Accessing the System Console Through a TIP Connection To Access the System Console Through the TIP Connection Note Modifying the /etc/remote File To Modify the /etc/remote File Note Accessing the System Console Through an Alphanumeric Terminal To Access the System Console Through an Alphanumeric Terminal Note Verifying Serial Port Settings on TTYB Note To Verify the Serial Port Settings on TTYB Accessing the System Console Through a Local Graphics Monitor To Access the System Console Through a Local Graphics Monitor Page System Console OpenBoot Configuration Variable Settings Page Managing RAS Features and System Firmware Note ALOM System Controller Note Logging In To the ALOM System Controller Note To Log In To the ALOM System Controller About the scadm Utility Note To View Environmental Information Note Controlling the Locator LED Note OpenBoot Emergency Procedures OpenBoot Emergency Procedures for Systems With Non-USB Keyboards OpenBoot Emergency Procedures for Systems With USB Keyboards Stop-A Functionality Stop-N Functionality To Restore OpenBoot Configuration Defaults Stop-F Functionality Automatic System Recovery Note Auto-Boot Options Note Error Handling Summary Note Reset Scenarios Automatic System Recovery User Commands Enabling and Disabling Automatic System Recovery To Enable Automatic System Recovery Note To Disable Automatic System Recovery Note Obtaining Automatic System Recovery Information Unconfiguring and Reconfiguring Devices To Unconfigure a Device Manually Page Note To Reconfigure a Device Manually Note Enabling the Hardware Watchdog Mechanism and Its Options To Enable the Hardware Watchdog Mechanism Multipathing Software Managing Disk Volumes Disk Volumes Volume Management Software VERITAS Dynamic Multipathing Sun StorEdge Traffic Manager Note RAID Technology Disk Concatenation RAID 0: Disk Striping RAID 1: Disk Mirroring RAID 5: Disk Striping With Parity Hot-Spares Hardware Disk Mirroring Caution Physical Disk Slot Numbers, Physical Device Names, and Logical Device Names To Create a Hardware Disk Mirror Page To Delete a Hardware Disk Mirror Page To Perform a Mirrored Disk Hot-Plug Operation Caution Note To Perform a Non-Mirrored Disk Hot-Swap Operation Page Page Page Note that c1t3d0 is now listed as configured. OpenBoot Configuration Variables Page Page Page Alarm Relay Output Application Programming Interface Page Page Page Page Page Index SYMBOLS A B C D E F G H L M N O P R S T U V X