5 – Diagnostics/Troubleshooting
POST Diagnostics
59043-01 A 5-7
3. Display the active zone set on each switch using the Zoning Active
command or the Active Zoneset tab of the SANbox Manager topology
display. Compare the zone membership between the two active zone sets.
Are they the same?
■ Yes - Contact your authorized maintenance provider.
■ No - Deactivate one of the active zone sets or edit the conflicting zones
so that their membership is the same. Reset the port. If the condition
remains, contact your authorized maintenance provider.
5.1.2.2
Excessive Port Errors
The switch monitors a set of port errors and generates alarms based on user-
defined sample intervals and thresholds. Refer to the SANbox2-64 Switch
Management User’s Guide for information about managing alarms. These port
errors include the following:
■ CRC errors
■ Decode errors
■ ISL connection count
■ Login errors
■ Logout errors
■ Loss-of-signal errors
If the count for any of these errors exceeds the rising threshold for three
consecutive sample intervals, the switch generates an alarm and disables the
affected port, changing its operational state to “down”. Port errors can be caused
by the following:
■ Thresholds are too low or the sample interval is too small
■ Faulty Fibre Channel port cable
■ Faulty SFP
■ Faulty port
■ Fault device or HBA
Review the alarm log to determine if excessive port errors are responsible for
disabling the port. Look for a message that mentions one of the monitored error
types indicating that the port has been disabled, then do the following:
Note: This can be caused by merging two fabrics whose active
zone sets have two zones with the same name, but
different membership.
