Zoning; Multi-Switch Fabrics - HP StorageWorks Installation Manual

• Master log—The master log at the lower left corner of the window displays a list of
informational, warning, or fatal events. The log also includes the event source, type, description,
time, and IP address of the device generating the event.
• Utilization legend—The color-coded utilization legend explains percent utilization for links
depicted on the physical map.
• Minimap—The minimap at the lower right corner of the window displays the entire SAN
topology, and provides an aid to navigate the more detailed physical map.
• Status bar—The status bar at the bottom of the window displays connection status, client
information, user level, and discovery status.

Zoning

The 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 switch fabric ports (F_Ports). A zone member is specified by the port
number to which a device is attached, or by the 8-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: IIf zoning is implemented by port number, a change to the 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.
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 multi-switch fabric. Only one zone set can be enabled at one time.

Multi-switch fabrics

A Fibre Channel topology that consists of one or more interconnected switches or switch elements is
called a fabric. Operational software provides the ability to interconnect switches (through
expansion port (E_Port) connections) to form a multi-switch 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 switch can communicate with each other
through the fabric.
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