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

36 FICON Administrator’s Guide
53-1002753-01
Port and switch naming standards for FMS mode
3
NOTE
Although 180 seconds should be the default value set on the switch when FMS is enabled, this
value may not be set when older versions of Fabric OS are upgraded. This value must be set on
the host system as well.
FICON CUP zoning and PDCM considerations
The FICON PDCMs control whether or not communication between a pair of ports in the switch is
prohibited or allowed. PDCMs are a per-port construct. Each port on the switch has its own PDCM
that defines whether communication is allowed between that particular port, and each of the other
ports in the switch, including itself. The Allow/Prohibit Matrix presents a matrix that allows you to
set and clear the PDCMs for all external ports. If there are any differences between restrictions set
up with Brocade Advanced Zoning and PDCMs, the most restrictive rules are automatically applied.
FMS must be enabled for the Allow/Prohibit Matrix to be operational, and there must be an active
zoning configuration. Domain,Index (D,I) zoning is recommended for FICON, but is not specifically
required. Hard-port or Hard-WWN zoning enforcement is required however. PDCMs will not be
enforced on ports with session-based enforcement.
If Brocade Advanced Zoning is in use, refer to the Fabric OS Administrator’s Guide for more
information on configuration.
Port and switch naming standards for FMS mode
FMS and the FICON Programming Interface employ 8-bit EBCDIC characters in port address names
and switch names. Fabric OS employs 7-bit characters. Therefore, when FMS mode is enabled, all
characters greater than 0x40 and not equal to 0xFF (EBCIDC code page 037 [0x25]; refer to
Appendix E, “EBCDIC Code Page”) are allowed in port address names, and it is possible for a
channel to set a name with nonprintable characters. If a name contains nonprintable characters,
those characters are displayed as dots (...). The following characters are also displayed as dots:
semicolon (;), comma (,), equal sign (=), and at sign (@).
The port name for the CUP port must be unique within the chassis.
FICON CUP Fabric OS commands
Table 4 summarizes the Fabric OS CLI commands that can be used for managing FICON fabrics.
For detailed information on these commands, see the Brocade Fabric OS Command Reference
Manual.
TABLE 4 Fabric OS commands related to FICON CUP
Command Description
ficonCupset fmsmode Sets FICON Management Server mode on or off for the switch.
ficonCupset crp Sets the CUP Asynchronous Event Reporting Path.
ficonCupset MIHPTO Sets the Missing Interrupt Handler Primary Timeout value.
ficonCupset modereg Sets the mode register bits for the switch.
ficonCupShow lp Displays the host logical path information for the CUP.