Fibre Channel Link Errors - Threshold Exceeded
What Caused the Problem?
Invalid characters have been detected in the fibre channel signal. This error has triggered a critical event alert notification (e-mail, alphanumeric page, or SNMP trap). Possible causes for the error are:
- A degraded laser in an Small Form-factor Pluggable (SFP) transceiver
- Damaged or faulty fibre channel cables
- Poor cable connections between components on the loop
Caution: Electrostatic discharge can damage sensitive components. Always use proper antistatic protection when handling components. Touching components without using a proper ground may damage the equipment.
Important Notes
- Polling is conducted on the fibre channel loop every five minutes. When the link threshold is exceeded for the first time, a critical event is logged and an alert notification sent. Any additional errors within a 12-hour period are logged in the Event Log, but no alerts are sent. When the 12-hour period expires, the next error will trigger another alert notification.
- This condition does not cause a Needs Attention status on the storage subsystem.
- Recovery Guru does not detect this condition. Use the Event Log and the following procedure to detect and correct this condition.
Recovery Steps
1 |
Check the cable connections between components on the loop; re-seat connections if necessary. |
2 |
Replace faulty or damaged cables. |
3 |
Replace faulty SFPs. |
4 |
If the problem persists, contact your technical support representative for assistance. |