Port Statistics - HP Surestore 64 - Director Switch User Manual

Port Statistics

To select and display more detailed performance information for a port, click the port's bar
graph. The bar graph for that port highlights with a darker background and the lower
portion of the Performance View main panel displays the statistics values for the port's
number and the WWN decoding. The Statistics Values tables contain cumulative port
statistics and error statistics.
Statistics Description
The Statistics Values tables contain statistics in the following groups. To refresh tables with
the latest data, click the Refresh button on the upper right portion of the Statistics Values
panel or click the port's bar graph. Clear all counters for all users using the Clear button.
Traffic Statistics with Receive and Transmit V alues
This section describes the types of statistics that display when you click a port's bar graph:
•
Link utilization %
There are separate values for transmit and receive link utilization. The larger of these
two values displays on the bar graph.
The current link utilization for the port is expressed as a percentage. Each port can
transmit or receive data at 100 Megabytes (MB) per second. This statistic shows the
percentage of the maximum link utilization currently being used. Link utilization is
calculated over one-second intervals. The maximum link utilization is 100%.
•
Frames
The number of frames that the port has received or transmitted.
•
Four byte words
The number of words that the port has received or transmitted.
•
Offline sequences
The number of offline sequence that the port has received or transmitted.
92 Performance View