HP StorageWorks 2.64 Core Switch - Manual (Page 20)

Zoning Concepts
20 Zoning Version 3.1.x/4.1.x User Guide
About Zoning
A zone is a specified group of fabric-connected devices, also called zone objects.
Any device, or zone object, connected to the fabric can be included in one or more
zones. Each zone object within a zone can communicate only with other zone
objects within the same zone; any device outside of a zone cannot communicate
with zone objects located inside a zone. Once zoning is enabled, if a device is not
explicitly defined in a zone, that device will exist in a zone by itself and be
inaccessible by other devices in the fabric.
Zone objects are grouped into zones and zones are grouped in a zone
configuration. Zones can overlap; that is, a zone object can belong to more than
one zone and a fabric can have multiple zones. A switch can have any number of
zone configurations resident; however, only one configuration can be enabled at a
time.
Figure 2 illustrates three zones with some overlap. It also contains devices that are
not assigned to a zone, and are thus not active in the fabric if zoning is enabled.
Note: Once zoning is enabled, if a device is not defined in a zone, that device will
exist in a zone all by itself. The device will be isolated and be inaccessible by other
devices in the fabric.
Figure 2: Fabric with three zones
No zone
No zone No zone