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

62 FICON Administrator’s Guide
53-1002753-01
Traffic Isolation Zoning
5
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.