Q-Logic 16HA Manuel D’Utilisation

SANbox switches use the following types of zoning to restrict or extend access to 
devices in the fabric:

•

Hard zones

•

Name Server zones

•

Segmented loop zones

•

Broadcast zones

 for information about zoning and multi-

chassis fabrics.Refer to the Switch Management manual for information about 
creating zones. 

Hard zones provide security by allowing access only among hard zone member 
devices. Access to member devices from devices outside the hard zone are 
excluded. Hard zones do not overlap and take precedence over all other zone type 
boundaries. Hard zones are defined by port.

Name Server zones extend access among public devices connected to fabric ports 
and among private devices connected to translated loop ports. Overlapping of 
Name Server zones allows the flexibility of extend the access to a specific shared 
device or shared group of devices.

Within a fabric, you must choose whether to define Name Server zones by port or 
by device world wide name (WWN). Name Server zoning by WWN makes it 
possible for the fabric to recognize a device as a member of a Name Server zone 
independent of where it is physically connected to the fabric. This can be useful 
when the need arises to balance port traffic. For example, suppose there are two 
public loops with one loop much busier than the other. Devices that are members 
of a Name Server zone (define by WWN) can be moved from the busy loop to the 
less active loop and yet be automatically recognized by the fabric.

When defining Name Server zones by WWN, it is helpful to move the chosen 
devices to a switch management shelf where they can be assigned distinguishing 
names. Refer to the Switch Management manual for information about naming 
devices.

Segmented loop zones extend access to private devices in the fabric by grouping 
SL_Ports together as though they were on the same segmented loop. Segmented 
loop zones are defined by port. SL_Port zones are defined by port and do not 
overlap.