Sun Microsystems 440 manual About the sc Prompt

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About the sc> Prompt

The ALOM system controller runs independently of the Netra 440 server and regardless of system power state. When you connect a Netra 440 server to AC power, the ALOM system controller immediately starts up, and begins monitoring the system.

Note – To view ALOM system controller boot messages, you must connect an alphanumeric terminal to the serial management port before connecting the AC power cords to the Netra 440 server.

You can log in to the ALOM system controller at any time, regardless of system power state, as long as AC power is connected to the system and you have a way of interacting with the system. You can also access the ALOM system controller prompt (sc>) from the OpenBoot ok prompt or from the Solaris # or % prompt, provided the system console is configured to be accessible through the serial management and network management ports. For more information, see the following:

“Getting to the ok Prompt” on page 13

“Switching Between the ALOM System Controller and the System Console” on page 15

The sc> prompt indicates that you are interacting with the ALOM system controller directly. It is the first prompt you see when you log in to the system through the serial management port or network management port, regardless of system power state.

Note – When you access the ALOM system controller for the first time, it forces you to create a user name and password for subsequent access. After this initial configuration, you will be prompted to enter a user name and password every time you access the ALOM system controller.

8 Netra 440 Server System Administration Guide • August 2004

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Contents Netra 440 Server System Administration Guide Page Contents Managing RAS Features and System Firmware Managing Disk Volumes Iv Netra 440 Server System Administration Guide August Figures Vi Netra 440 Server System Administration Guide August Tables Viii Netra 440 Server System Administration Guide August Preface How This Book Is OrganizedUsing Unix Commands Shell PromptsTypographic Conventions Related DocumentationContacting Sun Technical Support Accessing Sun DocumentationThird-Party Web Sites Sun Welcomes Your CommentsConfiguring the System Console Communicating With the System1Ways of Communicating With the System Using the System Console What the System Console DoesSerial MGT NET MGT Alom serial management port Alom network management port Alternative System Console Configuration 3Alternative Console Ports Require Additional ConfigurationAccessing the System Console Through a Graphics Monitor About the sc Prompt Access Through Multiple Controller Sessions OpenBoot ok PromptReaching the sc Prompt Reaching the ok Prompt Graceful Shutdown Alom System Controller break or console CommandL1-A Stop-A Keys or Break Key Externally Initiated Reset XIR Manual System ResetFor More Information Getting to the ok Prompt2Ways of Accessing the ok Prompt To Get to the ok PromptConsole # Accessing the System Controller Using the Serial Management PortTo Use the Serial Management Port Activating the Network Management PortEstablish an Alom system controller session To Activate the Network Management Port To verify the network settings, typeLog out of the Alom system controller session Accessing the System Console Through a Terminal Server To Access The System Console Through a Terminal Server3Pin Crossovers for Connecting to a Typical Terminal Server Open a terminal session on the connecting device, and type Accessing the System Console Through a TIP Connection Power on the systemTo Access the System Console Through the TIP Connection A shell tool window on the Sun system, typeOk power-off Modifying the /etc/remote File If the number displayed by the uname -rcommand is less thanTo Modify the /etc/remote File Netra 440 Server System Administration Guide August Ok setenv input-device ttyb ok setenv output-device ttyb Open a shell tool window Type Verifying Serial Port Settings on TtybTo Verify the Serial Port Settings on Ttyb Look for the following outputFor more information, see Getting to the ok Prompt on To cause the changes to take effect, type System Console OpenBoot Configuration Variable Settings Output-device Ttya Ttyb Screen Input-device KeyboardNetra 440 Server System Administration Guide August Managing RAS Features and System Firmware Alom System Controller Logging In To the Alom System ControllerAbout the scadm Utility To Log In To the Alom System ControllerTo View Environmental Information Sc showenvironmentControlling the Locator LED To turn on the Locator LED, do one of the followingTo turn off the Locator LED, do one of the following OpenBoot Emergency Procedures Stop-A Functionality To Restore OpenBoot Configuration DefaultsStop-N Functionality Stop-F Functionality Automatic System RecoveryTo reset the system, type the following command Stop-D FunctionalityAuto-Boot Options Error Handling Summary Enabling and Disabling Automatic System Recovery Reset ScenariosAutomatic System Recovery User Commands To Enable Automatic System RecoveryTo cause the parameter changes to take effect, type To Disable Automatic System RecoveryTo cause the parameter change to take effect, type Obtaining Automatic System Recovery Information Unconfiguring and Reconfiguring DevicesTo Unconfigure a Device Manually To determine full physical device paths, type To Reconfigure a Device Manually To Enable the Hardware Watchdog Mechanism Enabling the Hardware Watchdog Mechanism and Its OptionsMultipathing Software Managing Disk Volumes Disk VolumesVeritas Dynamic Multipathing Volume Management SoftwareSun StorEdge Traffic Manager Managing Disk Volumes RAID Technology Disk ConcatenationRAID 0 Disk Striping RAID 1 Disk MirroringRAID 5 Disk Striping With Parity Hardware Disk MirroringHot-Spares To Create a Hardware Disk Mirror C1t3d0 Devices/pci@1f,700000/scsi@2/sd@3,0For example To Delete a Hardware Disk Mirror To delete the volume, type the following command To confirm a failed disk, type the following command To Perform a Mirrored Disk Hot-Plug OperationTo Perform a Non-Mirrored Disk Hot-SwapOperation View the status of the Scsi devices CD-ROMRemove the hard drive from the device tree # cfgadm -x removedevice c0dsk/c1t1d0Configure the new hard drive Verify that the device has been removed from the device treeVerify that the new hard drive is in the device tree OpenBoot Configuration Variables Baudrate, bits Appendix a OpenBoot Configuration Variables Netra 440 Server System Administration Guide August Alarm Relay Output Application Programming Interface Netra 440 Server System Administration Guide August Page Netra 440 Server System Administration Guide August Page Netra 440 Server System Administration Guide August Symbols IndexNetra 440 Server System Administration Guide August Asr-disable, 46 go Console, 11, 41 console -f, 9 poweroff, 12 poweron Uadmin 11 uname, 25 uname -r Netra 440 Server System Administration Guide August