A Troubleshooting

A.1 Hardware Troubleshooting

Here is a checklist of common installation problems. Use this list as a guide in isolating common installation problems.

This partial list highlights areas of possible trouble to speed hardware troubleshooting. If the system still fails to function properly, contact the Sun Microsystems Customer Service Center. Make sure you have the serial number of your SCSI Expansion Pedestal available before you call for assistance (Figure A-1 shows the location of the serial number ID label).

Note - Some SCSI Expansion Pedestals may have the serial number ID label in a different location than that shown in Figure A-1.

Figure A-1 Serial Number ID Label and LED Indicators Locations

• Verify that all the power connections are correct and installed properly.

• Verify that the AC power switch at the rear of the pedestal and the DC power switch in the front of the pedestal are in the ON (|) position.

• Verify that all cables are installed properly. Check for bent pins or pushed pins on all cables.

• Verify that all connectors with screw-down connectors are securely fastened.

• Verify that all cables are correctly routed to the appropriate connectors.

• Verify that no cable is cramped, pinched, crossed over sharp edges, or under excessive tension.

• If the green LED on the left-side of the front panel of the pedestal is on and the green LED in the middle is off, turn the DC power switch located at the front of the pedestal to the STANDBY (

  

  ) position, then turn the DC power switch back to the ON (|) position. Figure A-1 shows the location of the three LEDs behind the front panel of the SCSI Expansion Pedestal.

A.2 Probing the System for SCSI Devices

Once you have connected your SCSI Expansion Pedestal to your system and powered it up, you should probe your system for SCSI devices to make sure all the devices in your SCSI Expansion Pedestal are connected. The commands you will use to probe your system for SCSI devices will vary depending on what system you have your SCSI Expansion Pedestal hooked up to.

• If your SCSI Expansion Pedestal is connected to a three-slot SPARCstation using the SBus SCSI Host Adaptor (SSHA) cards, refer to the section entitled "Probing for SCSI Devices Connected to a Three-Slot SPARCstation (SSHA Connection)" on page A-3 for instructions.

• If your SCSI Expansion Pedestal is connected to a four-slot SPARCstation using the SBus SCSI Host Adaptor (SSHA) cards, refer to the section entitled "Probing for SCSI Devices Connected to a Four-Slot SPARCstation (SSHA Connection)" on page A-7 for instructions.

• If your SCSI Expansion Pedestal is connected to a SPARCstation, SPARCserver 630MP or SPARCserver 670MP using any type of SCSI host adaptor card other than the SSHA card, refer to the section entitled "Probing for SCSI Devices Connected to a SPARCstation, SPARCserver 630MP, or SPARCserver 670MP (Other Connection)" on page A-11 for instructions.

Probing for SCSI Devices Connected to a Three-Slot SPARCstation (SSHA Connection)

Follow these instructions to probe for SCSI devices off your SPARCstation:

1. Back up the system files and data to tape, if necessary.

2. Notify users that the system is going down.

3. Use the appropriate command to halt your system.

Once you have halted your system, you will see several system messages:

• If you see the "ok" prompt at the end of the system messages, go to Step 4.

• If you see the following screen at the end of the system messages:

  

type "n" at the "" prompt and press <return:

This will bring you to the "ok" prompt.

4. Probe your system for SCSI devices.

The command you enter to probe your system for SCSI devices will vary depending on which SCSI port(s) you have your SCSI Expansion Pedestal tray(s) connected to:

• If your SCSI Expansion Pedestal tray(s) are connected to the on-board SCSI port on your three-slot SPARCstation, enter the following command:

  

Enter the total number of SCSI devices listed here: ____

• If your SCSI Expansion Pedestal tray is connected to the SBus 1 slot on your three-slot SPARCstation, enter the following command, leaving a space after every quotation mark ("):

  

Enter the total number of SCSI devices listed here: ____

• If your SCSI Expansion Pedestal tray is connected to the SBus 2 slot on your three-slot SPARCstation, enter the following command, leaving a space after every quotation mark ("):

  

Enter the total number of SCSI devices listed here: ____

• If your SCSI Expansion Pedestal tray is connected to the SBus 3 slot on your three-slot SPARCstation, enter the following command, leaving a space after every quotation mark ("):

  

Enter the total number of SCSI devices listed here: ____

5. Add up the total number of SCSI devices listed in Step 4.

Write that number here:____

6. Compare the total number of SCSI devices you have in your entire system with the number of SCSI devices shown in Step 5.

For example, if your system consists of a SPARCstation and the SCSI Expansion Pedestal, and you have a 207 Mbyte disk drive in your SPARCstation and four 1.3 Gbyte disk drives in your SCSI Expansion Pedestal, you should see a total of five SCSI devices shown in Step 5.

Note - If you connected your SCSI Expansion Pedestal to the SPARCstation using the method given in Appendix B of this manual, you will not see the disk drives in your SPARCstation listed when you probe your system for SCSI devices.

If you find that one or more SCSI devices did not come up when you probed for SCSI devices, it could mean that the devices were not installed properly. Contact the Sun Microsystems Customer Service Center for assistance. Make sure you have the serial number of your SCSI Expansion Pedestal available before you call for assistance (Figure A-2 shows the location of the serial number ID label).

Note - Some SCSI Expansion Pedestals may have the serial number ID label in a different location than that shown in Figure A-2.

Figure A-2 Serial Number ID Label Location

7. Enter the following command to reboot your system:

Your screen will go blank for several seconds after you've entered this command, and then the system will reboot.

Probing for SCSI Devices Connected to a Four-Slot SPARCstation (SSHA Connection)

Follow these instructions to probe for SCSI devices off your SPARCstation:

1. Back up the system files and data to tape, if necessary.

2. Notify users that the system is going down.

3. Halt your system.

Once you have halted your system, you will see several system messages:

• If you see the "ok" prompt at the end of the system messages, go to Step 4.

• If you see the following screen at the end of the system messages:

  

type "n" at the "" prompt and press <return:

This will bring you to the "ok" prompt.

4. Probe your system for SCSI devices.

The command you enter to probe your system for SCSI devices will vary depending on which SCSI port(s) you have your SCSI Expansion Pedestal tray(s) connected to:

• If your SCSI Expansion Pedestal tray(s) are connected to the on-board SCSI port on your four-slot SPARCstation, enter the following command:

  

Enter the total number of SCSI devices listed here: ____

• If your SCSI Expansion Pedestal tray is connected to the SBus 0 slot on your four-slot SPARCstation, enter the following command, leaving a space after every quotation mark ("):

  

• If your SCSI Expansion Pedestal tray is connected to the SBus 1 slot on your four-slot SPARCstation, enter the following command, leaving a space after every quotation mark ("):

  

Enter the total number of SCSI devices listed here: ____

• If your SCSI Expansion Pedestal tray is connected to the SBus 3 slot on your four-slot SPARCstation, enter the following command, leaving a space after every quotation mark ("):

  

Enter the total number of SCSI devices listed here: ____

5. Add up the total number of SCSI devices listed in Step 4.

Write that number here:____

6. Compare the total number of SCSI devices you have in your entire system with the number of SCSI devices shown in Step 5.

For example, if your system consists of a SPARCstation and the SCSI Expansion Pedestal, and you have a 207 Mbyte disk drive in your SPARCstation and four 1.3 Gbyte disk drives in your SCSI Expansion Pedestal, you should see a total of five SCSI devices shown in Step 5.

Note - If you connected your SCSI Expansion Pedestal to the SPARCstation using the method given in Appendix B of this manual, you will not see the disk drives in your SPARCstation listed when you probe your system for SCSI devices.

If you find that one or more SCSI devices did not come up when you probed for SCSI devices, it could mean that the devices were not installed properly. Contact the Sun Microsystems Customer Service Center for assistance. Make sure you have the serial number of your SCSI Expansion Pedestal available before you call for assistance (Figure A-3 shows the location of the serial number ID label).

Note - Some SCSI Expansion Pedestals may have the serial number ID label in a different location than that shown in Figure A-3.

Figure A-3 Serial Number ID Label Location

7. Enter the following command to reboot your system:

Your screen will go blank for several seconds after you've entered this command, and then the system will reboot.

Probing for SCSI Devices Connected to a SPARCstation, SPARCserver 630MP, or SPARCserver 670MP (Other Connection)

Follow these instructions to probe your system for SCSI devices:

1. Back up the system files and data to tape, if necessary.

2. Notify users that the system is going down.

3. Halt your system.

Once you have halted your system, you will see several system messages:

• If you see the "ok" prompt at the end of the system messages, go to Step 4.

• If you see the following screen at the end of the system messages:

  

type "n" at the "" prompt and press <return:

This will bring you to the "ok" prompt.

4. Probe your system for SCSI devices.

The command you enter to probe your system for SCSI devices will vary depending on which SCSI port(s) you have your SCSI Expansion Pedestal tray(s) connected to:

• If your SCSI Expansion Pedestal tray(s) are connected to the SBus 0 slot on your SPARCstation, SPARCserver 630MP or SPARCserver 670MP, enter the following command, leaving a space after every quotation mark ("):

  

Enter the total number of SCSI devices listed here: ____

• If your SCSI Expansion Pedestal tray(s) are connected to the SBus 1 slot on your SPARCstation, SPARCserver 630MP or SPARCserver 670MP, enter the following command, leaving a space after every quotation mark ("):

  

Enter the total number of SCSI devices listed here: ____

• If your SCSI Expansion Pedestal tray(s) are connected to the SBus 2 slot on your SPARCstation, SPARCserver 630MP or SPARCserver 670MP, enter the following command, leaving a space after every quotation mark ("):

  

Enter the total number of SCSI devices listed here: ____

• If your SCSI Expansion Pedestal tray(s) are connected to the SBus 3 slot on your SPARCstation, SPARCserver 630MP or SPARCserver 670MP, enter the following command, leaving a space after every quotation mark ("):

  

Enter the total number of SCSI devices listed here: ____

5. Add up the total number of SCSI devices listed in Step 4.

Write that number here:____

6. Compare the total number of SCSI devices you have in your entire system with the number of SCSI devices shown in Step 5.

For example, if your system consists of a SPARCserver 670MP and the SCSI Expansion Pedestal, and you have a SunCD in your SPARCserver 670MP and four 1.3 Gbyte disk drives in your SCSI Expansion Pedestal, you should see a total of five SCSI devices shown in Step 5.

If you find that one or more SCSI devices did not come up when you probed for SCSI devices, it could mean that the devices were not installed properly. Contact the Sun Microsystems Customer Service Center for assistance. Make sure you have the serial number of your SCSI Expansion Pedestal available before you call for assistance (Figure A-4 shows the location of the serial number ID label).

Note - Some SCSI Expansion Pedestals may have the serial number ID label in a different location than that shown in Figure A-4.

Figure A-4 Serial Number ID Label Location

7. Enter the following command to reboot your system:

Your screen will go blank for several seconds after you've entered this command, and then the system will reboot.