HP StorageWorks 2.64 Director Switch - Manual (Page 141)

Fabric Zoning
141 High Availability Fabric Manager User Guide
The advantage of identifying a zone member by port number is that if the HBA on
an attached device fails, you do not have to identify the member with the WWN of
the replacement HBA.
A disadvantage of port zoning is that someone may rearrange cable connections to
ports (because of port failures or other reasons) and inadvertently allow devices to
communicate that should not have access to each other.
Note: If a managed product’s Domain ID changes, you must reconfigure all zones that
contained the managed product’s port as a zone member. HP recommends assigning
unique preferred Domain ID’s to each switch in the fabric using the Configure Switch
Parameters dialog box in the Product Manager.
Default Zone
A default zone consists of all devices that have not been configured as members of
a zone in a currently-active zone set. Here are some important points to remember
about zone sets:
■ While viewing the Fabrics tab, you can enable or disable the default zone
separately from the active zone set by selecting the Configure Default Zone
option from the Advanced Zoning options in the Configure menu. Enabling
the default zone allows all devices and ports not configured as members of the
active zone set to communicate. If the default zone is disabled, these ports and
devices cannot communicate.
■ When no zone set is activated, then all devices are considered to be in the
default zone.
■ If a zone set is active, then all connected devices that are not included as a
members of a zone in the active zone set are included in the default zone.
Zone Sets
A zone set is a group of zones that you can activate or deactivate as a single entity
across all managed products in either a single switch or a multiswitch fabric. Only
one zone set can be active at one time. Devices that are members of zones in the
zone set can only communicate with members of zones in the same zone set.
However, devices can be included as members of more than one zone set. By
activating a zone set, you are making all zones in the set active.
Refer to Table 5 on page 146 for details on the number of zones and zone
members that you can configure in a zone set and the number of zone sets that you
can configure in the HAFM zoning library.