Fabric OS Administrator's Guide v7.0.0 (53-1002148-02, June 2011)

Fabric OS Administrator’s Guide 309
53-1002148-02
Displaying bottleneck statistics
13
Per-port overrides for sub-second latency bottleneck criterion:
===============================================================
Port TimeThresh SevThresh
=================================
6 0.600 40.000
Per-port overrides for alert parameters:
========================================
Port Alerts? LatencyThresh CongestionThresh Time(s) QTime(s)
================================================================
6 N -- -- -- --
Displaying bottleneck statistics
You can use the bottleneckmon --show command to display a history of bottleneck conditions, for
up to three hours. This command has several display options:
• Display only latency bottlenecks, only congestion bottlenecks, or both combined.
• Display bottleneck statistics for a single port, bottleneck statistics for all ports on the switch, or
a list of ports affected by bottleneck conditions.
• Continuously update the displayed data with fresh data.
1. Connect to the switch and log in as admin.
2. Enter the bottleneckmon
--show command.
Example of displaying the bottleneck history in 5-second windows over a period of 30 seconds
In this example, the definition of bottlenecked ports is any port that had a bottleneck occur during
any second in the corresponding interval.
switch:admin> bottleneckmon --show -interval 5 -span 30
==================================================================
Wed Jan 13 18:54:35 UTC 2010
==================================================================
List of bottlenecked ports in most recent interval:
23
==================================================================
Number of
From To bottlenecked ports
==================================================================
Jan 13 18:54:05 Jan 13 18:54:10 1
Jan 13 18:54:10 Jan 13 18:54:15 2
Jan 13 18:54:15 Jan 13 18:54:20 1
Jan 13 18:54:20 Jan 13 18:54:25 1
Jan 13 18:54:25 Jan 13 18:54:30 0
Jan 13 18:54:30 Jan 13 18:54:35 0