HP StorageWorks 8B FC Entry Switch - Manual (Page 28)

3-8 Advanced Performance Monitoring User’s Guide
Using Advanced Performance Monitoring
3
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