HP StorageWorks Fabric OS 6.1.x administrator guide (5697-0234, November 2009)

ManualsBrandsHP ManualsStorageBrocade 8/24c SAN Switch for BladeSystem c-Class

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286 Optimizing fabric behavior

• The TI zones appear in the defined zone configuration only and do not appear in the effective zone

configuration. A TI zone only provides Traffic Isolation and is not a “regular” zone.

• A TI zone must include a set (two or more) of E_Ports forming an end-to-end path. Inclusion of N_Ports

is optional.

• Each TI zone is interpreted by each switch and each switch considers only the routing required for its

local ports. No consideration is given to the overall topology and to whether the TI zones accurately

provide dedicated paths through the whole fabric.

For example, in Figure 28, the TI zone was configured incorrectly and E_Port “3,9” was erroneously

omitted from the zone. The domain 3 switch assumes that traffic coming from E_Port 9 is not part of the

TI zone and so that traffic is routed to E_Port 11 instead of E_Port 12, if failover is enabled. If failover is

disabled, the route is broken and traffic stops.

• You create and modify TI zones using the zone command. Other zoning commands, such as

zoneCreate, aliCreate, and cfgCreate, cannot be used to manage TI zones.

Figure 28 TI zone misconfiguration

Supported configurations for Traffic Isolation

Note the following configuration rules for TI zones:

• Traffic Isolation is supported only on the HP StorageWorks 4/8 SAN Switch, 4/16 SAN Switch, SAN

Switch 4/32, 4/64 SAN Switch, SAN Switch 4/32B, and 400 Multi-protocol Router, 4/256 SAN

Director and DC SAN Backbone Director (short name, DC Director), all configured in Brocade Native

Mode (interopmode 0).

• Traffic Isolation has limited support for FICON FCIP in McDATA Fabric Mode (interopmode 2), in the

following configuration only:

NOTE: At the time of this document’s release, HP does not support McDATA Fabric Mode (interopmode

2).

• 400 Multi-protocol Router with E_Port connections to an M-switch and VE_Port connections to

another 400 Multi-protocol Router.

• Devices attached to M-switch only.

• Traffic Isolation is not supported in fabrics configured in Open Fabric Mode (interopmode 3).

• Limited USD-X replacement support for FICON FCIP in McDATA Fabric Mode.

• 400 Multi-protocol Router (platform specific) with E-port connections to an M-switch and VE-port

connections to another 400 Multi-protocol Router.

• Devices attached to M-switch only.

This feature is not supported in fabrics configured in any interopMode except for a predefined FICON

FCIP configuration in McDATA Fabric Mode.

• VE_Ports are supported in TI zones.

= Dedicated path

= Ports in the TI zone

Domain 1 Domain 3

Domain 4