Users Guide

Access Gateway Administrator’s Guide 69
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Performance Monitoring
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Flow Monitor expands on basic performance monitoring by allowing you to monitor any
hardware-supported flow parameters and define your own flows using combinations of source and
destination devices, source and destination IDs, LUN IDs, CSCTL values, and frame types as
parameters.
Following are examples of monitors that you can replicate using Flow Monitor:
• End to End Monitor - This measures the traffic in terms of word count between a pair of ports
(host and target). Use this to view end-to end traffic values on an Access Gateway.
• Frame monitoring - Set up an SCSI monitor so that you can view the -frametype frame and byte
count for a flow.
• LUN monitoring - This allows you to view the -frametype frame and byte count for a specific
LUN.
• Flow learning monitor - This learns flows going through a specific F_Port in the Access Gateway.
• DST monitor - This provides the legacy support equivalent to a fmmonitor.
Access Gateway switches support flow monitors on F_Ports only, and only the ingress port
parameter is supported. For more information on using Flow Monitor features for Access Gateway
in Flow Vision, refer to the Flow Vision Administrator's Guide.
Legacy performance monitoring features
Instead of Flow Monitor, you can use the legacy end-to-end and frame monitoring features available
through Advanced Performance Monitoring (APM). These legacy features are available on platforms
using Fabric OS 7.2 and earlier. The following licenses must be appropriately installed on the AG
switch to use the end-to-end and frame monitors:
• APM
• Fabric Watch
Use the following Fabric OS commands used to manage APM in switch mode to manage end to end
and frame monitoring in AG mode. Refer to the Fabric OS Command Reference Manual and Fabric
OS Administrator’s Guide for details.
• perfAddEEMonitor
• perfMonitorClear
• perfMonitorShow --class EE <port#>
• perfResourceShow
• perfCfgSave
• perfCfgClear
• perfCfgRestore
• fmmonitor
You can also use Fabric Watch to configure thresholds corresponding to specific frame monitors
Refer to the Fabric Watch Administrator's Guide for details.
End-to-end monitors
End-to-end monitors measure the traffic between a host and target pair by counting the number of
words in Fibre Channel frames for a specified Source ID (SID) and Destination ID (DID) pair. An
end-to-end performance monitor includes these counts: