Brocade Communications Systems 415 - Manual (Page 39)

Brocade Adapters Administrator’s Guide 25
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Basic port configuration
3
QoS
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 Networking (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.
NOTE
You must first enter the
bcu port
--
disable <port_id>
command, followed by the
bcu port
--
enable <port_id>
command, before the
bcu qos
--
enable
or
bcu qos
--
disable
commands take effect.