# Troubleshooting

Listed below are troubleshooting concepts, initial questions you should answer, and questions grouped by categories.

Overall Concepts

1. Ask questions

2. Verify the information

3. Analyze the information

4. Isolate the problem

5. Locate the problem

First, ask these questions:

1. Is there power?

2. Are all the cables connected?

3. Is everything from a basic installation done?

4. Was the SAN working before?

5. What has changed?

Symptoms

1. Do we have error messages?

2. What is the Heartbeat LED doing?

3. Are there other symptoms? (no login, lost connections, etc.)

4. What is the operating system?

Switch

1. Type of switch?

2. Switch serial number?

3. Firmware version?

4. Port modes?

5. Zoning?

Fibre Channel Configuration

1. Which ports are used?

2. Which type of GBICs?

3. Chassis type and ID?

4. Diagram of setup?

5. Tests that have been run and results?

6. Data patterns on traces?

LED Indicators

1. Power good (green) - ‘on’ if power supply is within normal operating limits?

2. Fan fail (red) - ‘on’ if fan speed is below normal operational level?

3. Over temperature (red)

4. Heartbeat (yellow) - blinking pattern indicates status or post results (normal operation - one blink per second) see Installation Guide for other blink patterns

5. Port logged-in (green) - ‘on’ if a device is connected and successfully logged-in Loop Initialization Protocol (LIP)?

6. Port activity (yellow) - ‘on’ during Class 2 or 3 traffic activity?

7. Ethernet activity/collision (yellow) - ‘on’ during traffic?

8. Ethernet link (green) - ‘on’ when connected?

Power On Self Test (POST)

1. Internal switch diagnostic check?

2. Invoked by ‘power-on’ or reset?

3. Does not check GBICs?

4. Heartbeat LED displays results? Normal is a steady rate of one blink per second; Failure is a series of blinks followed by a pause.

5. Fatal? (Power good ‘on’ when all others blink in unison, or when heartbeat does not blink; or No indicator lights at all.)

If the problem is still not resolved, follow the steps below and then contact Support:

1. Document what happened, what you were trying to do, and the exact problem you are experiencing.

2. Document the exact steps you have already taken to locate or resolve the condition.

3. Repeat the same steps to re-create the problem.

4. Document all error messages you received.

5. Send an email message to Technical Support.