Zoning; Multiswitch Fabrics - HP 316095-B21 Installation Manual

NOTE:
StorageWorks SNMP reference guide for Directors and Edge Switches.

Zoning

The Edge Switch supports a name server zoning feature that partitions attached devices into
restricted-access groups called zones. Devices in the same zone can recognize and communicate
with each other through switched port-to-port connections. Devices in separate zones cannot
communicate with each other.
Zoning is configured by authorizing or restricting access to name server information associated with
device N_Ports that attach to Edge Switch fabric ports (F_Ports). A zone member is specified by the
port number to which a device is attached, or by the eight-byte (16-digit) world wide name (WWN)
assigned to the host bus adapter (HBA) or Fibre Channel interface installed in a device. A device
can belong to multiple zones.
NOTE: By default, zoning is disabled. You must enable zoning to see devices.
CAUTION: If zoning is implemented by port number, a change to the Edge Switch fiber-optic cable
configuration disrupts zone operation and may incorrectly include or exclude a device from a zone.
If zoning is implemented by WWN, removal and replacement of a device HBA or Fibre Channel
interface (thereby changing the device WWN) disrupts zone operation and may incorrectly include
or exclude a device from a zone.
In Open Fabric mode, only zoning by WWN is supported. Zoning by port numbers is not
supported.
Zones are grouped into zone sets. A zone set is a group of zones that is enabled (activated) or
disabled across all switches in a multiswitch fabric. Only one zone set can be enabled at one time.

Multiswitch fabrics

A Fibre Channel topology that consists of one or more interconnected Edge Switches or Edge Switch
elements is called a fabric. Operational software provides the ability to interconnect switches
(through expansion port [E_Port] connections) to form a multiswitch fabric. The data transmission
path through the fabric is typically determined by fabric elements and is user-transparent. Subject to
zoning restrictions, devices attached to any interconnected Edge Switch can communicate with each
other through the fabric.
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