McDATA 4314 Manual De Usuario

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McDATA 4314 Fibre Channel Switch Module Installation Guide
4-4
Recovering a Switch Module
Port threshold alarm monitoring is disabled by default. Refer to the EFCM 
Basic Management Guide
 for information about managing port threshold 
alarms.
If the count for any of these errors exceeds the rising trigger for three 
consecutive sample windows, the switch generates an alarm and disables the 
affected port, changing its operational state to “down”. Port errors can be 
caused by the following:
Triggers are too low or the sample window is too small
Faulty Fibre Channel port cable
Faulty SFP
Faulty port
Fault device or HBA
Review the event browser 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:
1. Examine the alarm configuration for the associated error using the Show 
Config Threshold command or the EFCM BASIC application. Refer to the 
McDATA 4314 Command Line Interface Guide for information about this 
command. Are the thresholds and sample window correct?
• Yes  -  Continue
• No - Correct the alarm configuration. If the condition remains, 
continue.
2. Reset the port, then perform an external port loopback test to validate the 
port and the SFP. Refer to the EFCM Basic Management Guide for 
information about testing ports. Does the port pass the test?
• Yes  -  Continue
• No - Replace the SFP and repeat the test. If the port does not pass the 
test, contact your authorized maintenance provider. Otherwise 
continue.
3. Replace the Fibre Channel port cable. Is the problem corrected?
• Yes  -  Complete.
• No  -  Continue.
4. Inspect the device to which the affected port is connected and confirm 
that the device and its HBA are working properly. Make repairs and 
corrections as needed. If the condition remains, contact your authorized 
maintenance provider.
Recovering a Switch Module
A switch can become inoperable or unmanageable for the following reasons:
Firmware becomes corrupt
IP  address  is  lost
Switch configuration becomes corrupt