HP 1606 FICON Administrator's Guide v6.4.0 (53-1001771-01, June 2010) - Page 63

Traffic Isolation Zoning, Determining Ports for the TI Zone, Enhanced TI Zoning

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Traffic Isolation Zoning 5 If fmsmode is enabled in a configuration file, but is disabled on the switch, the configDownload command fails and displays an error message. This prevents undesirable conditions that could result from enabling fmsmode on a switch that does not require it. Traffic Isolation Zoning Traffic Isolation (TI) Zoning allows data paths to be specified. In a FICON fabric you need Fabric OS v6.2.0 or later. TI Zoning has the following benefits: • Separates direct attached storage device (DASD) and tape traffic. • Selects traffic for diverse ISL routes (typical of dual fiber networks). • In conjunction with long-distance channel extension equipment (FICON Acceleration), guarantee bandwidth for certain mission-critical data. For more information on Traffic Isolation Zoning, refer to the Fabric OS Administrator's Guide. Determining Ports for the TI Zone To find the device ports, use the MVS display command. The following example shows how to determine where device D000 is connected and the paths to it, from the MVS console enter: D M=DEV (D000) Response is: DEVICE D000 STATUS=ONLINE CHP 9C 9D 9E 9F ENTRY LINK ADDRESS 883C 883D 883E 883F DEST LINK ADDRESS 790C 790D 790E 790F 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 D000 D000 D000 D000 MAXIMUM MANAGED CHPID(S) ALLOWED: 0 DESTINATION CU LOGICAL ADDRESS = 10 SCP CU ND = 002107.921.IBM.07.000000002036.0086 SCP TOKEN NED = 002107.900.IBM.07.000000002036.1000 SCP DEVICE NED = 002107.900.IBM.07.000000002036.1000 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 directors: • 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: • Brocade 5100 FICON Administrator's Guide 51 53-1001771-01

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FICON Administrator’s Guide
51
53-1001771-01
Traffic Isolation Zoning
5
If
fmsmode
is enabled in a configuration file, but is disabled on the switch, the
configDownload
command fails and displays an error message. This prevents undesirable conditions that could
result from enabling
fmsmode
on a switch that does not require it.
Traffic Isolation Zoning
Traffic Isolation (TI) Zoning allows data paths to be specified. In a FICON fabric you need Fabric OS
v6.2.0 or later. TI Zoning has the following benefits:
•
Separates direct attached storage device (DASD) and tape traffic.
•
Selects traffic for diverse ISL routes (typical of dual fiber networks).
•
In conjunction with long-distance channel extension equipment (FICON Acceleration),
guarantee bandwidth for certain mission-critical data.
For more information on Traffic Isolation Zoning, refer to the
Fabric OS Administrator’s Guide
.
Determining Ports for the TI Zone
To find the device ports, use the MVS display command. The following example shows how to
determine where device D000 is connected and the paths to it, from the MVS console enter:
D M=DEV (D000)
Response is:
DEVICE D000 STATUS=ONLINE
CHP 9C 9D 9E 9F
ENTRY LINK ADDRESS 883C 883D 883E 883F
DEST LINK ADDRESS 790C 790D 790E 790F
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 D000 D000 D000 D000
MAXIMUM MANAGED CHPID(S) ALLOWED: 0
DESTINATION CU LOGICAL ADDRESS = 10
SCP CU ND = 002107.921.IBM.07.000000002036.0086
SCP TOKEN NED = 002107.900.IBM.07.000000002036.1000
SCP DEVICE NED = 002107.900.IBM.07.000000002036.1000
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 directors:
•
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:
•
Brocade 5100