HP StorageWorks MSA 2/8 HP StorageWorks Fabric OS 3.X Document Addendum (AA-RW - Page 244
Port Error Persistence, seconds or more
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Fabric Watch User Guide You can also use the portshow command to view the port health that Fabric Watch maintains. Valid port states are Healthy, Marginal, Faulty, and Offline. Port Error Persistence Port states indicate the overall health of a switch. While a port is operating, Fabric Watch monitors run every six seconds, gathering measurements about the port and looking for any abnormal behavior. When a value goes out of range, the monitor triggers. Whenever a monitored value deviates from a user-defined range, the state of the port changes from a healthy state to an abnormal state. A port must remain in the abnormal state for a user-defined period of time before the port state affects the overall switch state. The monitor returns to a normal state when a problem is temporary. However, if the problem persists for 18 seconds or more, the state of the port changes from Healthy to Marginal. The port state remains Marginal as long as the problem exists. You can modify the default error persistence value of 18. To configure the port error persistence time, issue the fwset --port --persistence command. 244 Fabric OS 3.x Document Addendum
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