Brocade Adapters Administrator’s Guide 29
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Basic port configuration 4

Enabling and disabling persistent binding using the BCU

Target persistent binding enables target port world wide name binding to a persistent ta rget ID for
the OS stack. Using the -list operand, you can query the list of mappings from the persistent binding
module.
Enter the following commands to configure target persistent binding.
bcu pbind - -list <port_id> [<pwwn>]
bcu pbind - -clear <port_id>
Refer to “pbind” on page 184 for details about this command.
QoS (HBA only)
NOTE
The QoS feature is not supported on the converged network adapter (CNA).
Quality of Service (QoS) works in conjunction with the QoS feature on Brocade switch F_Ports. The
Fabric operating system (FOS) provides a mechanism to assign traffic priority (high, medium, or
low) for a given source and destination traffic flow. By default, all flows are marked as medium.
This feature is supported only on 8 Gbps HBA ports installed on specific switch models that use
Fabric OS 6.2 and later. The following licenses need to be installed on the switch connected to each
HBA port (edge switch):
•Adaptive Networking (AN) license.
•Server Application Optimization (SAO) license.
To determine if these licenses are installed on the connected switch, execute the Fabric OS
licenseshow command. Refer to the Fabric OS Administrator’s Guide for detailed information about
QoS.

Configuring QoS on the switch side using the BCU

On the switch side, you can create QoS zones using the PWWNs that correspond to devices in a
source/destination traffic flow. You need a Server Application Optimization (SAO) license installed
on the switch to enable QoS. In addition, an Adaptive Network (AN) license is required on the switch
to enable QoS on the switch ports.
You enable or disable QoS settings on ports with the portCfgQos command. Refer to the Fabric OS
Administrator’s Guide for details about this command on the switch side.

Configuring QoS on the HBA side using the BCU

There are three possible QoS states:
•Enabled, online - QoS is established with the switch.
•Enabled, offline - QoS negotiation failed and QoS was not established with the switch. Possible
reasons for failure could be the license is not installed on the switch or QoS is not enabled on
the port.
•Disabled.