HP StorageWorks Fabric OS 6.1.1 administrator guide (5697-0235, December 2009)

Fabric OS 6.1.x administrator guide 353
To display the top flows on domain 2 in PID format:
perfttmon --show dom 2 pid
switch:admin> perfttmon --show dom 2 pid
========================================
Src_PID Dst_PID MB/sec
========================================
0xa908ef 0xa05200 6.926
0xa05200 0xa908ef 6.872
0xa905ef 0xa05200 6.830
0xa909d5 0xa05200 6.772
Limitations of Top Talker monitors
Note the following when using Top Talker monitors:
• Top Talker monitors cannot detect transient surges in traffic through a given flow.
• You cannot install a Top Talker monitor on a mirrored port.
• Top Talker can monitor only 10,000 flows at a time.
• Top Talker is not supported on VE_Ports, EX_Ports, and VEX_Ports.
Trunk monitoring
To monitor E_Port (ISL) and F_Port trunks, you can set monitors only on the master port of the trunk. If the
master changes, the monitor automatically moves to the new master port.
If a monitor is installed on a port that later becomes a slave port when a trunk comes up, the monitor
automatically moves to the master port of the trunk.
Note the following:
• For Fabric OS 3.x switches, monitoring can be set on slave ISLs.
• End-to-end monitors are not supported for ISLs.
• For F_Port trunks, end-to-end masks are allowed only on the F_Port trunk master. Unlike the monitors, if
the master changes, the mask does not automatically move to the new master port.
• 4/8 SAN Switch, 4/16 SAN Switch, 8/8 SAN Switch, 8/24 SAN Switch models support eight
filter-based monitors for trunks.
• The SAN Switch 4/32, 4/64 SAN Switch, SAN Switch 4/32B, 8/40 SAN Switch, 8/80 SAN Switch,
400 Multi-protocol Router, 4/256 SAN Director and DC Director switches support 12 filter-based
monitors for trunks.
Displaying monitor counters
You can display the monitors on a specified port. For end-to-end counters, you can display either the
cumulative count of the traffic detected by the monitors or a snapshot of the traffic at specified intervals.
To display monitor counters:
1. Connect to the switch and log in as admin.
2. Issue the perfmonitorshow command:
perfmonitorshow --class monitor_class [slotnumber/]portnumber [interval]
where:
• monitor_class is the monitor class, which can be one of EE (end-to-end), FLT (filter-based), or ISL
(inter-switch link). The
-- --class monitor_class operand is required.
• slotnumber specifies the slot number for a 4/256 SAN Director director. For all other switches, this
operand is not required. The slot number must be followed by a slash ( / ) and the port number, so
that each port is represented by both slot number (1 through 4 or 7 through 10) and port number (0
through 15).