FW 05.01.00 and SW 07.01.00 HP StorageWorks Embedded Web Server User Guide (AA-RTDRB-TE, June 2003)

Configuring Zones
63Embedded Web Server User Guide
The following are some important points to remember about zone sets:
■ If no zone set is active, and the default zone is disabled, then no devices can
communicate.
■ If you activate a zone set when there is already an active zone set, that set will
replace the currently-active zone set.
■ If you deactivate the current active zone set, then all devices connected in the
fabric become members of the default zone.
Active Zone Set
An active zone set is a zone set that is currently active on a single-switch fabric or
across all managed products in a multiswitch fabric. At any time, you can disable
zoning by deactivating the active zone set and enabling the default zone, or you
can enable zoning by activating a zone set. When a zone set is active, all zones that
are members of that zone set are active. Only one zone set can be active for the
fabric at one time. If no zones are active, then all devices are considered to be in
the default zone.
Merging Zoned Fabrics
Managed products are linked through Interswitch Links (ISLs) to form
multiswitch fabrics. In a multiswitch fabric, the active zoning configuration
applies to the entire fabric. Any change to the configuration applies to all switches
in the fabric.
When fabrics join through an ISL, adjacent managed products exchange active
zone configurations and determine if the configurations are compatible and can
merge. Zoning configurations are compatible if the active zone names in each
fabric are unique. If there are identical zone names in each fabric, then the zones
must have identical members for the fabrics to join.
If the configurations can merge, the fabrics join. The resulting configuration will
be a single zone set containing zone definitions from each fabric.
If configurations cannot merge, the expansion ports (E_Ports) on each product
become segmented. Segmented E_Ports cannot carry traffic from attached devices
(class 2 or 3 traffic), but can carry management and control traffic (class F traffic)
between managed products.