Owner's manual

3-8 Advanced Performance Monitoring User’s Guide

Using Advanced Performance Monitoring

Clearing End-to-End Monitor Counters

To clear all of the end-to-end monitor counters on a port, use the perfSetPortEEMask command to

reset all of the end-to-end monitor counters on that port.

Note: The perfSetPortEEMask command also sets the end-to-end mask, so if you do not

want to change the mask, you must re-specify the current mask settings. You can view

the current mask settings using the perfShowPortEEMask command.

To clear the counters for a single end-to-end monitor, delete the monitor using the

perfDelEEMonitor command, and then add the monitor again, using the perfAddEEMonitor

command.

Filter-based Performance Monitoring

Filter-based monitoring counts the number of times a particular command or frame type is received

by a port. Filter-based monitoring is achieved by configuring a filter for a particular purpose. The

filter can be a standard filter (for example, a read command filter that counts the number of read

commands that have been received by the port) or a user-defined filter that you customize for your

particular use.

The maximum number of filters is eight per port, in any combination of standard filters and

user-defined filters.

Adding Standard Filter-Based Monitors

This section describes how to add standard filter-based monitors to a port. Use the telnet commands

listed in Table 3-1 to define filter-based monitors on a port.

Example. These commands add several filter-based monitors to port 2 and display the results.

Table 3-1 Telnet Commands to Add Filter-based Monitors

Telnet command Description

perfAddReadMonitor Count the number of SCSI Read commands

perfAddWriteMonitor Count the number of SCSI Write commands

perfAddRWMonitor Count the number of SCSI Read and Write commands

perfAddSCSIMonitor Count the number of SCSI traffic frames

perfAddIPMonitor Count the number of IP traffic frames