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

62 FICON Administrator’s Guide

53-1002753-01

Traffic Isolation Zoning

Determining ports for the TI Zone

To find the device ports, use the MVS display command. The following example will display the

paths to device 1002 and where it is connected:

D M=DEV(1002)

Response is:

DEVICE 1002 STATUS=OFFLINE

CHP AC AD AE AF

ENTRY LINK ADDRESS .. 6715 6808 6679

DEST LINK ADDRESS 66FE 66FE 66FE 66FE //CUP has link address = DDFE,

where DD= domain ID of switch//

PATH ONLINE Y Y Y Y

CHP PHYSICALLY ONLINE Y Y Y Y

PATH OPERATIONAL Y Y Y Y

MANAGED N N N N

CU NUMBER 1002 1002 1002 1002

MAXIMUM MANAGED CHPID(S) ALLOWED: 0

DESTINATION CU LOGICAL ADDRESS = 00

SCP CU ND = SLKWRM.DCX.BRD.CA.4FT00X39C19A.0001

SCP TOKEN NED = SLKWRM.DCX.BRD.CA.4FT00X39C19A.0000

SCP DEVICE NED = SLKWRM.DCX.BRD.CA.4FT00X39C19A.0000

Enhanced TI Zoning

Enhanced Traffic Isolation Zones allow you to specify a preferred and exclusive path through a

cascaded fabric for a particular flow by defining a set of devices or ports to appear in more than

one Enhanced TI Zone. A preferred path is one that has failover enabled and an exclusive path has

failover disabled. An exclusive path in the following topologies is beneficial as it will limit the

number of hops between switches:

• Triangular

• System Data Mover

• Emulation

Enhanced TI Zoning for the topologies listed above is available only on the following platforms

running Fabric OS v6.4.0 or later:

• Brocade 5100

• Brocade 5300

• Brocade 7800

• Brocade DCX

• Brocade DCX-4S

Triangular topology

The triangular topology shown in Figure 15 is a common FICON deployment for managing data

center recovery functions. In this topology, a switch is located in each of three sites and connected

to the other two forming a triangle. In most environments, the purpose of this configuration is to

give the host application the ability to connect to storage media at the other two sites, which allow

it to recover from an outage at either site. Meanwhile, the storage systems constantly synchronize

between the two storage sites.