Brocade Network Advisor SAN User Manual v12.3.0 - Manual (Page 732)

680 Brocade Network Advisor SAN User Manual
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Configuring Virtual Fabrics
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• When the Logical Switch Change Conformation and Status dialog box displays after configuring
logical switches through the Logical Switches dialog box, be sure the following parameters are
selected:
- Re-Enable ports after moving them.
- Unbind Port Addresses while moving them
- QoS disable the ports while moving them.
If you do not select the Unbind Port Addresses while moving them check box, the port address
is “remembered” by the switch from where it was moved and cannot be assigned to another
port. This is rarely desired when configuring switches for FICON applications. Also, because it is
not obvious that the address is in memory, not selecting this option can cause confusion when
making future changes.
• Configure at least one logical switch and move all FICON ports to that logical switch, even if
that means moving all ports in the chassis.
• Enabling or disabling Virtual Fabrics is disruptive as it requires you to reboot the switch. If the
switch is in a production environment, make sure all channel connections to the switch have
been configured offline first.
• As a best practice, do not change a production fabric unless there is a compelling reason to do
so. For new installations, the recommended best practice is to enable Virtual Fabrics. Even if
you do not plan to use the chassis for more than a single logical switch, you have the option of
adding a logical switch in the future without an outage.
• Create at least one logical switch for FICON connections.
• Fibre Channel ports on the 8 Gbps Extension Blade can be placed in any logical switch. The
default switch should only be used for FICON connections when FC ports on a 4 Gbps Router,
Extension blade are required for FICON. FICON connections are not supported in the default
switch for 48-port blades in a 4-slot or 8-slot Backbone Chassis.
Configuring Virtual Fabrics
The Management application allows you to discover, enable, create, and manage Virtual
Fabrics-capable physical chassis from the same interface.
This procedure describes the general steps you take to enable the Virtual Fabrics feature and
configure logical fabrics. The logical fabrics in this example span multiple physical chassis, and the
logical switches in each fabric communicate using an XISL in the base fabric.
1. Enable Virtual Fabrics in each physical chassis.
Refer to “Enabling Virtual Fabrics” on page 681 for instructions.
2. Set up base switches in each physical chassis.
a. Create base switches in each physical chassis and assign ports to them.
Refer to “Creating a logical switch or base switch” on page 682 for instructions.
b. Disable the base switches in each physical chassis.
Right-click each base switch in the Connectivity Map or Product List and select
Enable/Disable > Disable.
c. Physically connect ports in the base switches to form XISLs.