Brocade Network Advisor SAN User Manual v12.3.0 - Manual (Page 1158)

1106 Brocade Network Advisor SAN User Manual
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Bottleneck detection
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You can display a graph showing the history of bottleneck conditions, for up to the last 150
minutes.
1. Select Monitor > Performance > Bottleneck Graph.
The Bottleneck Graph Port Selector dialog box displays with bottlenecked ports shown in the
Available list.
2. (Optional) Select All Ports from the Show list to display all ports in the Available list.
3. Select one or more ports for which you want to display bottleneck statistics and click the right
arrow to move them to the Selected list.
You can select up to 32 ports.
You can select a port on the Available list or Selected list to find and highlight the port on the
alternate list.
4. Click OK.
The Bottleneck Graph dialog box displays, showing bottleneck statistics for the selected ports.
This dialog box has several options for displaying the data:
• Change the display interval and the display range.
Bottleneck port statistics is limited to a maximum of the last 150 minutes with display
intervals of 10, 60, and 300 seconds.
• Click Refresh to update the displayed data with fresh data.
If you change the display interval or display range, you must click Refresh for the changes
to take effect.
• Display real-time and historical performance graphs.
• Select a bottlenecked F_Port or FL_Port and click Show Affected Devices to see the hosts
and targets that may be affected by the bottleneck.
Displaying devices that could be affected by an F_Port or FL_Port
bottleneck
The following procedure displays hosts and targets that could be affected because of a
bottlenecked F_Port or FL_Port. These devices are determined based on zoning information and
are not based on actual traffic flow.
Affected devices cannot be determined for bottleneck E_Ports.
1. Select Monitor > Performance > Bottlenecks.
The Bottlenecks dialog box displays.
2. In the Current Settings list, select a bottlenecked port (a port with “Bottlenecked” in the
Bottleneck Status column).
3. Click Show Affected Devices.
The Show Affected Devices dialog box displays.
4. Select a port in the Bottleneck Ports list to display the affected hosts and targets in the table
on the right side of the dialog box.