Configuring ip links and merging the fabrics – Brocade Network Advisor SAN User Manual v12.1.0 User Manual
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Brocade Network Advisor SAN User Manual
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Connecting cascaded FICON fabrics over FCIP
22
Configuring IP links and merging the fabrics
Use the following procedures to configure an IP connection between two Extension Switches or
Blades, then merging the fabrics to which they belong.
1. Perform all tasks under
“FCIP configuration guidelines”
2. Configure tunnels circuits between the switches by following steps under
3. Follow these guidelines when configuring tunnels using the Add FCIP Tunnel dialog box:
•
You can configure either switch as switch 1 or switch 2.
•
Specifications for FCIP circuits per tunnel, number of IP addresses per port, and other
trunking capacities for the 8 Gbps Extension Switch and Blade are detailed in the Fabric
OS FCIP Administrator’s Guide.
•
For configuring Port Type on the Add FCIP Tunnel dialog box, VEX connections are for Fibre
Channel Routing (FCR) and are not supported for FICON. Select VE Port as this refers to an
E_Port connected to an IP instead of a Fibre Channel link.
4. On the FCIP Tunnel Advanced Settings dialog box Transmission tab (access by selecting
Advanced Settings on the Add FCIP Tunnel dialog box), follow these guidelines:
•
Best practice is to Enable Compression and set Compression Mode to Auto.
•
Fast Write is not necessary for FICON. Keep in mind that disk-to disk mirroring is native
FCP even if the front-side ports are FICON. If sharing FICON and FCP on the same tunnel,
you can enable Fast Write. Enabling Fast Write depends on the application being extended
over FCIP. Refer to
on page 831. As with any feature, if it is not
needed. the best practice is to disable it.
•
The Tape Acceleration option is for open systems tape, not FICON tape emulation.
5. On the FCIP Tunnel Advanced Settings dialog box Security tab (access by selecting Advanced
Settings on the Add FCIP Tunnel dialog box), follow these guidelines:
•
Recommended best practice is to enable IPSec. IPSEC on an 8 Gbps Extension Switch is
Advanced Encryption Standard (AES) 256 only.
•
The preShared Key should be 32 alphanumeric characters and must match in tunnel
configurations for both switches.
6. On the FCIP Tunnel Advanced Settings dialog box FICON Emulation tab (access by selecting
Advanced Settings on the Add FCIP Tunnel dialog box), follow these guidelines:
•
The recommended best practice is to complete all configuration for the IP connection and
merge the fabrics before configuring FICON emulation. Configure settings in this tab after
merging the fabrics.
•
FICON Acceleration features require a license. These features include FICON Tape
emulation, FICON XRC emulation, and FICON teradata pipelining.
•
Select Populate Default Values unless recommended otherwise by a qualified Fabric OS
support professional.