Statistics Description; Traffic Statistics With Receive And Transmit Values; Class 2 Statistics - HP Surestore 64 - Director Switch User Manual

receive traffic, class 2 and class 3 statistics, operational statistics, and error
categories. Click a category in the left side of the statistics area to display only
statistics for that category or click All to display values for all categories. For a
description of the Refresh and Clear buttons, refer to
page 111.
Note:
exists by the rate that the value changes. For example, BB_Credit starvation can occur
if data is sent to a device faster than it can consume the frames. This can back up into
ISLs, causing degraded performance.

Statistics Description

The Statistics Values tables contain statistics in the following groups. To refresh
tables with the latest data, click Refresh on the upper right portion of the
Statistics Values panel or click the port's bar graph. Clear all counters for all
users using Clear.

Traffic Statistics with Receive and Transmit Values

This section describes the types of statistics that display when you click a port's
bar graph:

Class 2 Statistics

The Class 2 Statistics table includes:
Director Product Manager User Guide
There are not thresholds for these values. You may determine that a problem
Link utilization %—There is a separate value 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 200 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.
Received Frames—The number of Class 2 frames received by this F_Port
from its attached N_Port.
Transmitted Frames—The number of Class 2 frames transmitted by this
F_Port to its attached N_Port.
Monitoring and Managing the Director
"Button Functions" on
107