IBM TotalStorage SAN140M Installation And Service Manual page 312

Event code: 082
Message: Port fencing - port fenced.
Severity: Informational.
Explanation: Port is disabled (blocked) due to meeting the threshold criteria defined in the port fencing policy. The fence type is
indicated in the event data.
Action: Identify the responsible application or hardware and fix. Hardware may include components such as ports, ISLs,
and extenders. Port fencing threshold settings can be changed to lesser values. Unblock the port after problem
has been fixed.
Event Data: Bytes 0 - 3 = Port number.
Bytes 4 - 7 = Fence type codes as follows:
0 = None - No type.
1 = Protocol error - This type of failure is associated with persistent application layer protocol error or persistent
incomplete operations. This class would include perpetual port log-in, constant fabric rebuilds, and persistent
in-band management protocol errors.
2 = Link level hot I/O - The family of failures is associated with hardware and an unstable link state machine.
3 = Security violation - The class of failures associated with persistent violations of one or more security
features within E/OS (port binding violation, authentication failures, etc.).
Bytes 8 - 11 = Disabled reason codes as follows:
1 = Unknown - Reason is not known.
9 = ISL fencing - ISL was fenced after meeting the threshold for port
Distribution: Director
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