HP StorageWorks Edge Switch 2/12 Service Manual page 86

Diagnostics
20
As indicated by an event code 072, a switch E_Port is connected to an
unsupported switch or fabric element.
Advise the customer of the problem and disconnect the interswitch link to the
unsupported switch. Exit MAP.
21
A 140 event code occurs only if the optional Open Trunking feature is enabled.
The event code indicates OpenTrunking firmware detected an ISL with Fibre
Channel traffic that exceeds the configured congestion threshold.
No action is required for an isolated event. However, if this event persists,
perform one of the following:
Did the corrective action solve the problem and relieve the reported ISL
congestion?
NO
↓
Contact the next level of support. Exit MAP.
22
A 142 event code occurs only if the optional OpenTrunking feature is enabled.
The event code indicates OpenTrunking firmware detected an ISL with no
transmission BB_Credit for a period of time that exceeded the configured low
BB_Credit threshold. This results in downstream fabric congestion.
No action is required for an isolated event or if the reporting ISL approaches
100% throughput. However, if this event persists, perform one of the following:
86
Relieve the congestion by adding parallel ISLs between the switches
reporting the problem.
Increase the ISL link speed between the switches reporting the problem (from
1 Gbps to 2 Gbps).
Reroute Fibre Channel traffic by moving device connections to a
less-congested region of the fabric.
YES
The ISL appears operational. Exit MAP.
Relieve the congestion by adding parallel ISLs between the switches
reporting the problem.
Edge Switch 2/12 Service Manual