POST and Troubleshooting

Each type of module (server module, bay controller module, router module, and cooling module) executes an automatic Power On Self Test (POST) when the module is seated in a slot, power cycled, or the TSR system is restarted.

LEDs on each module indicate if the POST passed or failed.

If the initial power-on POST fails, attach a laptop PC or a console to the module and display the POST results. POST results provide specific information about how the module failed and can indicate the procedure to rectify the error.

NOTE Cooling modules do not provide a console port.

This chapter describes:

• The POST for each type of module
  
  
• The LEDs for each type of module
  
  
• The procedures to restart the module
  
  
• The procedures to attach a laptop PC or a console, restart the module, and run tests to check the module
  
  

Server Module POST

The server module POST is a memory check only. The server POST is a silent process. No messages are displayed on the server module console.

Server Module LEDs

Each route server module has one green square and one red triangle LED visible on the faceplate.

Figure A-1. Server Module LEDs

During server module POST, the red LED on the faceplate lights and remains lit until POST is complete. After completion of POST, the green LED is lit and blinks and the red LED is extinguished.

The blinking green LED indicates that the module has passed POST.

If the red LED remains lit, POST has detected a nonrecoverable error or fault. If the red LED remains lit, restart the route server module by unseating and reseating the module.

Restarting a Server Module

Some POST failures are due to an improperly seated server module or other simple problems. Unseating and reseating the module causes the module to power on/power off and rerun the POST and may clear the problem.

CAUTION When unseating the module, pull it out no more than a half inch from its seated position. Care must be taken not to stress the cables.

PROCEDURE: If a failure occurs during server module POST (the red LED remains lit), use the following procedure to unseat and reseat the server module:

Step 1 Leave all cables attached to the server module.

Step 2 Unscrew the two captive screws on the faceplate.

Figure A-2. Unseating/Reseating the Server Module

Step 3 Open the door on the server. Grasp the top and bottom of the server and carefully pull the module out until the connectors at the back of the module are unseated from the backplane - about 1/2-inch.

Step 4 Wait approximately 50 seconds for the module to cool down.

Step 5 With the locking latches in the unlocked position, carefully push the module into the slot until the connectors at the back of the module are reseated in the backplane.

Step 6 Tighten the captive screws to secure the locking latches into position and to lock the module into place.

The server module POST re-executes. If the POST fails again, contact Customer Service. See "Support Services" in the Preface for Avici Customer Service contact information.

Router Module POST

The routing module POST has three stages:

• In stage 1, POST checks the routing module's boot ROM.
  
  
• In stage 2, POST tests the central processor hardware on the routing module.
  
  
• In stage 3, POST restarts the routing module and loads an operational image from flash memory.
  
  

Stages 2 and 3 require the successful completion of the previous stage before they begin.

Router Module LEDs

The router module has one green square LED and one red triangle LED visible on the module faceplate. Refer to Figure A-3.

Figure A-3. Routing Module LEDs

During routing module POST, the red LED on the faceplate lights and remains lit until POST is completed. After completion of POST, the green LED is lit and blinks and the red LED is extinguished.

The blinking green LED indicates that the module has passed POST.

If the red LED remains lit, POST has detected a nonrecoverable error or fault. If the red LED remains lit, remove and reseat the module to run POST again.

Restarting a Routing Module

Some POST failures are due to an improperly seated routing module or other simple problem. Unseating and reseating the module may clear the problem.

PROCEDURE: If a failure occurs during server module POST (the red LED remains lit), use the following procedure to unseat and reseat the router module:

Step 1 Open the thumb latches completely.

NOTE Do not disconnect the Ethernet or fiber optic cables.

Step 2 Carefully pull the module out until the connectors at the back of the module are unseated from the backplane - about 1/2-inch. Refer to Figure A-4.

Figure A-4. Unseating/Reseating the Router Module

Step 3 Wait for approximately 10 seconds to allow the module to cool.

Step 4 Ensure that the cable trays on the router module being re-inserted and on the adjacent router modules are fully closed.

Step 5 Close the thumb latches completely.

Step 6 Align the module with the card guides.

Step 7 Slide the module into the slot until the thumb latch lever hits the lip of the shelf. Refer to Figure A-5.

Figure A-5. Router Module Insertion - 1

Step 8 Open the thumb latches and slide the module in until the thumb latch levers slide into position behind the lip of the shelf. Refer to Figure A-6.

Figure A-6. Router Module Insertion - 2

Step 9 Push the thumb latches to the closed position to further insert the module and to ensure proper seating in the connector backplane. Refer to Figure A-6.

The router module POST re-executes. If POST again fails, contact Avici Customer Service. See "Support Services" in the Preface for Avici Customer Service contact information.

Bay Controller POST

The bay controller module boot process has three stages:

• In stage 1, bootROM checks memory and NVRAM.
  
  
• In stage 2, the bay controller module loads the operational system image. The image loaded can be either a system image to operate the bay controller or a POST image to test the bay controller.
  
  
• In stage 3, the operational system image starts running.
  
  

Bay Controller LEDs

Each TSR bay controller module has two LEDs on the module faceplate for indicating status. Refer to Figure A-7.

Figure A-7. Bay Controller LEDs

NOTE You must remove the TSR's front air intake assembly to see the bay controller module LEDs.

The LEDs blink and go out to indicate the status of the bay controller as it comes up.

• In stage 1, the green LED turns on during the hardware POST. A red LED in stage 1 indicates a hardware error. Use the procedure described in "Restarting a Bay Controller Module" on page 106 to restart the module.
  
  
• In stage 2, the green LED remains on while the operational image loads.
  
  
• In stage 3, the green LED blinks to indicate up status.
  
  

Restarting a Bay Controller Module

If the bay controller module POST fails (the red LED remains lit), it indicates a hardware failure. Some failures are due to an improperly seated bay controller module or other simple problem.

Use the following procedure to unseat and reseat a bay controller module.

NOTE This procedure will cause the module to power off/power on and rerun the boot process. To access the bay controller module, it is not necessary to remove the cooling module.

Step 1 Press and release the cable channel door panels on the left and right sides of the bay (front) to open the doors and access the front air intake assembly.

Step 2 Grasp the face of the assembly firmly by the air vents.

Figure A-8. Front Air Intake Assembly

Step 3 Pull toward the front of the bay to release the four ball studs from the receptacles holding the assembly in place.

Step 4 Remove the assembly and set it aside.

Step 5 Pull the ejectors on the bay controller module to the open position to release the latches on the bay controller module.

Step 6 Carefully pull the module out until the connectors at the back of the module are unseated from the backplane - about a half inch. Refer to Figure A-9.

Figure A-9. Bay Controller Module Removal

Step 7 Wait approximately 10 seconds for the module to cool.

Step 8 Carefully push the module into the slot until the connectors at the back of the module are re-seated in the backplane.

Step 9 Push the ejector tabs to the closed position to lock the module in place.

The bay controller restarts and the boot process reruns. If POST again fails, contact Avici Customer Service.

Step 10 Align the ball studs in the assembly with the receptacles on the bay frame.

Step 11 Carefully press on the air intake assembly until it snaps in place.

Example: The following example is annotated console output of a successful boot of a bay controller:

The green LED turns on and remains on: BOOTPOST> Starting BOOTPOST> TestFlash Starting...OK BOOTPOST> TestDRAM Starting.........................OK BOOTPOST> Test860 Starting..OK

Hardware POST checks NVRAM and boot ROM starts. The green LED turns on and remains on:

BOOTPOST> Starting BOOTPOST> TestFlash Starting...OK BOOTPOST> TestDRAM Starting.........................OK BOOTPOST> Test860 Starting..OK

Hardware POST completes and bootROM continues.

Avici Systems TSR Copyright 1997-1999 Avici Systems, Inc. CPU: AVICI Selena - PowerPC 860 BOOTROM OS: IPriori, Pre-Beta Release Release: 5.5 Creation date: Nov 7 2000, 14:12:37 Build name: Platform: sb; Label: SB_BL5.5

Boot ROM completes, operational or POST image loading starts. The green LED remains on:

Press any key to stop auto-boot... 7 6 5 4 3 2 1 0 auto-booting... boot device : flash flags (f) : 0x0 target name (tn) : bayCtrlr23 TSR ID: 0 Loading bay-r21a.cmp Checksum correct for image Starting at 0x1000000... Time initialized to baseline: THU JAN 01 00:00:00 1970 Awaiting SNTP syncronization... Attaching network interface eth0...Done Attaching LAN Interface...Done! Attaching Localhost Interface 1o0...Done

NFS client support not included. Adding 4450 symbols for standalone. Initializing left controller in bay 1 (index = 1)....Done Loading completes. The green LED comes on and stays on. The following banner is displayed: Avici Systems TSR Copyright 1997-2000 Avici Systems, Inc. CPU: AVICI Selena - PowerPC 860 OS: IPriori, Release 2.1 Rev A BSP version: 1.1 /2 Creation date: Jun 9 2000, 12:36:21 Build name: Platform: sv-d; Label: LC_BL25 Debug: Ready Transitioning to active mode...Done

The bay controller module is operational. The green LED starts blinking slowly.

Troubleshooting a Bay Controller Module

There are two types of bay controller failures:

• Unrecoverable hardware failures cause the red LED to light.
  
  
• Operational anomalies that do not cause the red LED to light.
  
  

If the red LED remains lit after restarting the module, a fatal hardware error has occurred. In this case, replace the bay controller module.

Installing the Bay Controller

The bay controller modules are shipped separately and need to be installed.

PROCEDURE: Use the following steps to install the TSR bay controllers:

Step 1 Disengage the release latches on the bay controller module.

Step 2 Align the bay controller module with the plastic card guides above the baseplate.

Step 3 Slide the bay controller module into the left or right card guides from the front of the bay. Refer to Figure A-10.

Figure A-10. TSR Bay Controller Installation

Step 4 Engage the latches to seat the connector at the rear of the module firmly in the controller backplane.

Troubleshooting Operational Anomalies

PROCEDURE: Use the following procedure if bay controller module POST completes and the software image loads (the green LED is blinking), but you experience operational anomalies:

NOTE You need a console adapter cable to connect the bay controller module to a console. The console adapter cable separates the console connection from the Ethernet connection. Refer to Figure A-11.

Figure A-11. Console Adapter Cable

Step 1 Press and release the door panels on the left and right sides of the bay (front) to open the doors and access the assembly.

Step 2 Grasp the face of the assembly firmly by the air vents.

Step 3 Pull toward the front of the bay to release the four ball studs from the receptacles holding the assembly in place.

Step 4 Remove the assembly and set it aside.

Step 5 Unplug the Ethernet cable from the faceplate of the bay controller.

Step 6 Plug the Ethernet cable into the RJ-45 end of the console adapter cable.

Step 7 Plug the DB-9 end of the console adapter cable into the console port on the bay controller module faceplate. Refer to Figure A-11.

Step 8 Pull the ejectors to the open position to release the latches on the bay controller module

Step 9 Holding the module by the ejector levers, carefully pull the module out until the connectors at the back of the module are unseated from the backplane - about 1/2-inch. Refer to Figure A-9.

Step 10 Wait 5 - 10 seconds for the module's capacitors to clear.

Step 11 Carefully push the module into the slot until the connectors at the back of the module are re-seated in the backplane.

Step 12 Push the ejector tabs to the closed position to lock the module in place.

The bay controller module restarts and the boot process reruns. The following messages are displayed on the console:

BOOTPOST> Starting BOOTPOST> TestFlash Starting...OK BOOTPOST> TestDRAM Starting....................................................K BOOTPOST> Test860 Starting..OK Avici Systems TSR Copyright 1997-1999 Avici Systems, Inc. CPU: AVICI Selena - PowerPC 860 BOOTROM OS: IPriori, Pre-Beta Release Release: 5.5 Creation date: Nov 7 2000, 14:12:37 Build name: Platform: sb; Label: SB_BL5.5

Step 13 Press any key within eight seconds to interrupt the boot process. The bootROM command prompt is displayed.

Example: For example:

Press any key to stop auto-boot...1 [IPriori Boot]:

Cooling Module LEDs

The TSR cooling system consists of two removable blower assemblies located behind the air intake assembly at the bottom of the TSR system. Each blower assembly has two blowers, one in the front and one in the rear.

Each blower assembly has two LEDs located on the faceplate. The LED on the right indicates the status of the rear blower of the assembly. The LED on the left indicates the status of the front blower. Refer to Figure A-12.

Figure A-12. Cooling Assembly LEDs

On power up the LEDs go through the following cycle:

• Blink red initially
  
  
• Steady green shortly thereafter
  
  
• Out when communication is established and blowers are operating under the control of the bay controller
  
  

When power up is complete, the cooling assembly LEDs have the following meaning:

Off	Normal operation or loss of power. The blower is running under the control of the bay controller module.
Red	Failure is detected. Replacement of blower assembly is required.
Green	There has been no communication with the bay controller for 5 or more seconds. The fan is running in autonomous mode. Fan speed is determined by an internal thermistor.

Installing Filler Modules

If you must remove a router or route server module from the TSR bay for any length of time, a filler module should be installed in the slot immediately until the replacement router or route server module is again installed. Correct orientation of the filler modules is essential. When installing filler modules, orient the modules as follows:

• Slots with red circles: orient filler modules with the red dot on top.
  
  
• Slots with blue squares: orient modules with the blue square on top.
  
  

PROCEDURE: Use the following steps to install filler modules:

Step 1 Orient the module according to its appropriate color (red or blue) and symbol (circle or square). Refer to Figure A-13.

Figure A-13. Filler Module Orientation

Step 2 Align the module with the card guides. Position the metal tabs of the lock latch release levers under the lip of the filler module.

Step 3 Slide the module all the way into the slot until it is seated firmly in the backplane.

Step 4 Tighten the two lock latches. The filler module lock latch locks into position. Refer to Figure A-14.

Figure A-14. Filler Module Orientation

Copyright © 2001 Avici Systems Inc.
Avici® and TSR® are registered trademarks of Avici Systems Inc.
IPriori™ is a trademark of Avici Systems Inc.

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