C H A P T E R 4 |
Troubleshooting the Server and Restoring ILOM Defaults |
This chapter introduces the diagnostic tools you can use to troubleshoot or monitor the performance of your server. It also includes information about how to restore the service processor (SP) password and serial connection defaults in ILOM, as well as how to restore your ILOM SP firmware.
The server module and its accompanying software and firmware contain many diagnostic tools and features that can help you complete the following tasks:
A suite of diagnostic tools, each of which has its own specific strengths and applications is available for troubleshooting server issues. For more information about which tool might be best to use for your purpose, and where to locate information about these tools, see:
There is a wide selection of diagnostic tools for use with your server. These tools range from the SunVTS software, a comprehensive validation test suite, to log files in ILOM that might contain clues helpful in identifying the possible sources of a problem, and the fault management function in ILOM that enables you to identify a faulted component as soon as the fault occurs.
The diagnostic tools also include standalone software packages, firmware-based tests like power-on self-test (POST), U-Boot tests, or Pc-Check tests, and hardware LEDs that tell you when the system components are operating.
TABLE 4-1 summarizes the variety of diagnostic tools that you can use when troubleshooting or monitoring your server.
TABLE 4-2 identifies where you can find more information about Sun diagnostic tools.
Locate the latest Solaris command information for Solaris 10 at: |
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You can restore the factory defaults for the following ILOM features:
To restore these factory defaults, you must use the Preboot Menu utility that is shipped installed on your server. The Preboot Menu enables you to address changes to some of ILOM’s settings while ILOM is not currently running. In addition to restoring factory defaults for the root password and serial connection settings, the Preboot Menu enables you to restore the SP firmware image on your system.
For more information about how to use the Preboot Menu to restore settings in ILOM, see these sections:
To access the Preboot Menu, you must reset the SP and interrupt the boot process. You can interrupt the ILOM boot process by either:
For details about the requirements for this local access method, see Prerequisites for Accessing the Preboot Menu.
For details about the requirements for this remote serial access method, see Prerequisites for Accessing the Preboot Menu.
Some Preboot Menu settings must be configured first, and until they are, you must use the Locate button method to access the Preboot Menu.
For detailed instructions for accessing the Preboot Menu from a local or remote connection, see the following sections:
Ensure that the applicable requirements are met prior to accessing the Preboot Menu from either a local or remote connection.
You must connect a terminal or console capable of running terminal emulation software to the serial port on the server using a dongle cable.
For more information about how to attach local devices to the server using a dongle cable, see Attaching Devices to the Server Module.
For instructions for accessing the Preboot Menu by using the Locate button, see Access to the Preboot Menu.
Prior to accessing the Preboot Menu remotely, you must set the bootdelay and check_physical_presence settings in the Preboot Menu to enable remote serial access. To configure these settings for the first time, you need to:
a. Access the Preboot Menu using the Locate button on the local server as described in Access to the Preboot Menu.
b. Edit the settings in the Preboot Menu to enable remote access as described in Edit Preboot Menu for Remote Serial Access.
c. Use a remote serial terminal or console running terminal emulation software to access the Preboot Menu remotely.
Note - You cannot use an SSH, or a remote KVMS session to access the Preboot Menu remotely. |
Access to the Preboot Menu |
1. Ensure that the requirements in Prerequisites for Accessing the Preboot Menu are met.
Where n is the slot number of the server module.
ILOM reboots and messages begin scrolling on the screen.
3. To interrupt the ILOM boot process, perform one of the following actions when the SP is resetting:
Note - You cannot interrupt the ILOM boot process by typing xyzzy until you have configured the settings as described in Edit Preboot Menu for Remote Serial Access. |
The ILOM Preboot Menu appears.
4. You can perform any of the following tasks or type boot to exit the Preboot Menu.
For instructions, see Edit Preboot Menu for Remote Serial Access.
For instructions, see Restore ILOM Root Password to Factory Default Using the Preboot Menu.
For instructions, see Restore Access to the Serial Console Using the Preboot Menu.
For instructions, see Restore the SP Firmware Image Using the Preboot Menu.
For command details, see Preboot Menu Command Summary.
Edit Preboot Menu for Remote Serial Access |
1. Access the Preboot Menu as described in Access to the Preboot Menu.
2. At the Preboot> prompt, type edit.
The Preboot Menu enters edit mode.
In edit mode, the Preboot Menu displays its selections one-by-one, offering you a chance to change each one.
3. Press Enter to move through the settings until the bootdelay setting appears.
4. To change the bootdelay setting, type 3, 10, or 30, then press Enter.
This value (3, 10, or 30) specifies the number of seconds the SP boot process delays while waiting for your input.
The Preboot Menu redisplays the bootdelay setting with the new value.
5. Press Enter to return to Preboot Menu selections.
The Preboot Menu selections appear.
6. Press Enter to move through the settings until the check_physical_presence setting appears.
To change the check_physical_presence setting, type no, then press Enter.
The Preboot Menu displays the check_physical_presence setting with the new value.
7. Press Enter for the new value to take effect.
The Preboot Menu asks you to confirm your changes.
Enter ‘y[es]’ to commit changes: [no]
8. Type y to save your changes and exit the edit session.
If you want to exit the edit session without saving your changes, type n.
The following example shows an edit session where the bootdelay and check_physical_presence settings are changed.
Note - For a list of other settings you can edit in the Preboot Menu, see Edit Mode Settings in Preboot Menu. |
In addition to changing the settings required in the Preboot Menu to enable remote access, you can also change other edit mode settings in the Preboot Menu. For a list of these settings, see TABLE 4-3.
Sets the baud rate of the serial port. Selections include 9600,19200, 38400, 57600, and 115200. |
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If this is set to 0, the serial port connects to the ILOM. If this is set to 1, the serial port connects to the host. For more details, see Restoring ILOM Access to the Serial Console. |
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The number of seconds the bootstrap process waits for the user to enter xyzzy before booting the SP. Selections include 3, 10, or 30. |
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The number of seconds the Preboot Menu waits for user input before timing out and starting the SP. Set to -1 to disable the time-out. |
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Setting this to no duplicates the function of the unconfig ilom_conf command, which resets many ILOM configuration settings, but preserves SP network, baudrate, and check_physical_presence the next time the SP is booted. |
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Setting this to no duplicates the function of the unconfig users command, which resets user information to the default values the next time the SP is booted. |
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Setting this to no duplicates the function of the unconfig password command, which resets the root password to the default value the next time the SP is booted. |
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If this is set to Yes, you must press and hold the Locate button to interrupt the SP boot process. If it is set to No, the boot process prompts you to interrupt it. See Edit Preboot Menu for Remote Serial Access for details. |
The ILOM root password grants you access to the ILOM web interface or command-line interface (CLI) on the SP or chassis monitoring module (CMM). If you forget the root password, you can use the Preboot Menu to restore the password to the factory default, changeme.
Restore ILOM Root Password to Factory Default Using the Preboot Menu |
1. Access the Preboot Menu as described in Accessing the Preboot Menu.
Setting ‘preserve_password’ to ‘no’ for the next boot of ILOM.
The Preboot Menu exits and the SP restarts.
After restarting the ILOM SP, the value for the root password (on the ILOM SP and CMM) is set to changeme when the SP is finished booting.
In the event that the serial connection between ILOM and a host becomes unavailable, you can restore access to the serial port connection by reconfiguring the host as the external serial port owner in either the ILOM web interface or CLI, or in the Preboot Menu.
To determine which interface to use when restoring the serial connection between ILOM and a host console, consider the following:
For instructions, see the procedure for “Switching Serial Port Output Between SP and Host Console” in the Oracle Integrated Lights Out Manager (ILOM) 3.0 Supplement for Sun Netra X6270 M2 Server Module, 821-0943.
Restore Access to the Serial Console Using the Preboot Menu |
1. Access the Preboot Menu as described in Accessing the Preboot Menu.
2. At the Preboot> prompt, type edit.
The Preboot Menu enters edit mode.
In edit mode, the Preboot Menu displays its selections one-by-one, offering you a chance to change each one.
3. Press Enter to move through the settings until the serial_is_host setting appears.
To change the serial_is_host setting, type 0, and then press Enter.
The Preboot Menu appears with the new value for the serial_is_host setting.
4. Press Enter to display the Preboot Menu selections.
The Preboot Menu settings appear.
5. Press Enter to scroll through the settings until the Preboot Menu asks you to confirm your changes.
Enter ‘y[es]’ to commit changes: [no]
6. Type y to confirm your change and exit the edit session.
The Preboot Menu displays this message
7. To exit the Preboot Menu, type boot.
If ILOM is available, you should always use the ILOM web interface or CLI to restore the firmware image. For instructions about how to restore the firmware image using either the ILOM web interface or CLI, see the Oracle Integrated Lights Out Manager (ILOM) 3.0 Documentation Collection. If ILOM is unavailable, you can use the Preboot Menu to restore the SP firmware image.
Note - To restore the SP firmware image using the Preboot Menu, you must be an authorized Service technician to perform the procedure. |
To use the Preboot Menu to restore the SP firmware image on the server, see the following sections:
The following requirements must be met prior to restoring the SP firmware on your server using the Preboot Menu.
Note - Restoring the SP firmware using the Preboot Menu requires a .flash file instead of a.pkg file that is typically used to update the SP using the ILOM interfaces. |
You must enable support in the Preboot Menu to recover the SP firmware image prior to performing the steps in Restore the SP Firmware Image Using the Preboot Menu.
To enable support in the Preboot Menu to recover SP firmware, follow these steps.
1. Prepare the server for service by powering down the server, removing the server module from the system chassis, then removing the server cover.
For instructions, see the following sections:
2. Locate the J602 pins on the server module then place a jumper on pins 2 and 3. See FIGURE 4-1.
FIGURE 4-1 Placing Jumper on Pins
3. Replace the top cover, return the server module to the system chassis and power-on the server.
For instructions, see the following sections:
4. Follow the instructions for restoring the SP firmware using the Preboot Menu in Restore the SP Firmware Image Using the Preboot Menu.
Note - The Preboot Menu firmware recovery process must be performed by an authorized Service technician and you must have a valid .flash file to perform the procedure. |
5. After you restore the SP image using the Preboot menu, perform the following steps to remove the J602 jumper from the server and to return the server to normal operation.
a. Power off the server module.
See Power Off and Verify Server Is Ready for Removal From Chassis.
b. Remove the server module from the chassis.
See Remove Server Module From Chassis.
c. Remove the top cover from the server.
d. Remove the jumper from J602. See FIGURE 4-1 for the location of the J602 jumper.
f. Return the server module into the chassis.
See “Installing the Server Module Into System Chassis” in the Sun Netra X6270 M2 Server Module Installation Guide, 821-0937.
See Power On the Server Module.
To restore the SP firmware image using the Preboot Menu, follow these steps:
1. Access the Preboot Menu as described in Accessing the Preboot Menu.
2. At the Preboot> prompt, type:
Caution - The use of the netflashcommand is reserved for use by authorized Service personnel only. |
net flash IPaddress path/name.flash
Preboot> net flash 10.8.173.25 images/system-rom.flash
After a series of messages, the Preboot Menu prompt appears.
3. At the Preboot> prompt, type the reset command to restart the SP.
The Preboot Menu exits and ILOM restarts.
TABLE 4-4 identifies the Preboot Menu commands.
Boots ILOM. The Preboot Menu exits and ILOM restarts. Note - This command executes a modified boot sequence that does not offer the choice to select the diagnostic level, or to interrupt the boot sequence and return to the Preboot Menu. To execute the normal boot sequence, use the reset warm command instead. |
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Displays version information including the hardware type, board revision, ILOM revision, revisions of PBSW and recovery U-Boot. Shows the checksum integrity of the images, and the preference between redundant images. |
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Starts an interactive dialog that prompts and changes settings one-by-one. See Edit Mode Settings in Preboot Menu for details. |
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Runs the U-Boot diagnostic tests in manual mode. See the Oracle x86 Servers Diagnostics Guide, 820-6750 for more on U-Boot diagnostic tests. |
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Initiates various activities related to the host.
Caution - If you start the host when ILOM is off, the BIOS does not send error events, or power messages to the SP. This can cause all server modules to lose power.
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{ config | dhcp | ping | flash }
Note - You must set ipdiscovery = dhcp using the net config command first.
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{ users | ilom_conf | most | all }
Causes ILOM to erase any configuration information and returns the values to defaults the next time ILOM boots.
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