Brocade Communications Systems WFT-2D User Manual page 1252

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Flow Mirror
1. Right-click a target port (15) and select Fabric Vision > Flow > Add.
2. Enter a name (flow_slowdrain) for the flow definition in the Name field.
3. Clear the Monitor check box.
4. Select the Mirror check box.
5. Select the CPU Mirroring or Local Flow Mirror option.
6. Select the Persist over switch reboots check box to persist this flow definition over reboots.
7.
8. Enter the port address (0x010200) in the Source field.
9. Enter the port address (0x040500) in the Destination field.
10. Click OK to save the flow definition.
Tracking SCSI commands
You can use Flow Mirror to track the SCSI commands being initiated by a host. For example, you
can use Flow Mirror to find all the targets with which the host is communicating. You can use this
data to identify the favorite targets of a host, which then allows you to provide additional privileges,
such as creating Quality of Service (QoS) or Traffic Isolation (TI) paths between those devices.
The following example mirrors scsicmd frames ingressing through port F1 to identify the SCSI
commands being initiated by a host.
1. Right-click a port (F1) and select Fabric Vision > Flow > Add.
1200
The Add Flow Definition dialog box displays with the following criteria and flow identifiers
pre-populated:
•
Feature — Monitor
•
Direction — Bidirectional
•
Source Device — Source identifier
•
Destination Device — * (an asterisk allows you to use any port)
•
Egress port — port number (1/20)
The name cannot be over 20 characters and can only include alphanumeric characters or
underscores.
NOTE
For a physical switch, the name must be unique. However, for logical switches, the name does
not have to be unique.
By default, CPU Mirroring is enabled.
Select the Activate all selected features check box to immediately activate the flow after
creation.
When the flow definition activates, the Flow Vision dialog box displays with the new flow
selected (highlighted) in the Flow Definitions table. To review the sub-flow data for the selected
flow, refer to "Monitoring a Flow Mirror flow"
The Add Flow Definition dialog box displays with the following criteria and flow identifiers
pre-populated:
•
Feature — Monitor
on page 1194".
Brocade Network Advisor SAN User Manual
53-1003154-01