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Brocade FICON Administrator's Guide v7.1.0 (53-1002753-01, March 2013)

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FICON Administrator’s Guide 31
53-1002753-01
FICON best practices
2
5. Reboot the switch or chassis.
6. To verify if auto mode or default mode is set for the chassis, enter the configShow --all
command as in the following example:
root> configshow -all | grep fos.csctlMode
fos.csctlMode:1
• If auto mode is set, the following should display in the command output:
fos.csctlMode:1
• If default mode is set, the following should display in the command output:
fos.csctlMode:0
To set return to default mode, follow the preceding steps, but select 0 (default mode) for CSCTL
QoS Mode when modifying Fabric OS attributes through the configurechassis command.
NOTE
The configurechassis command does not provide options to enable the CSCTL QoS mode on
individual ports in the chassis. Once you set the mode on the chassis, you must enable individual
ports to use this mode with the portcfgqos command. For details on the configurechassis and
portcfgqos commands, refer to the Brocade Fabric OS Command Reference for details.
FICON best practices
Use the following best practices for configuring FICON on Brocade switches and Backbones.
• Configuring Domain ID
Give all switches a unique domain ID and always set to IDs to “insistent.”
• Switch ID
Make the Switch ID in the IOCP or HCD the same as the hexadecimal equivalent of the domain
ID. Although not required, this will make it easier to correlate switches to the IOCP. For
example, if the domain ID is 32 (0x20), the Switch ID should be 20.
• Firmware
Following are requirements:
- Use only qualified firmware for FICON.
- All versions of firmware for switches that Brocade Network Advisor will be managing
should be in the Brocade Network Advisor repository.
- All switches in a fabric should be at the same code level.
- When upgrading code more than two levels, plan the upgrades so no switch in the fabric is
more than one release apart.
- Always check the version of firmware on a switch before putting the switch into production.
- If a firmware upgrade is required on a new switch installation, upgrade the firmware before
making any configuration changes.
• CHPID and control unit placement
Place CHPID and control unit connections on the same port card when possible to minimize
the impact of a card failure.