Q-Logic 16HA Switch User Manual


 
Preliminary
Zoning
SANbox-16HA Fibre Channel Switch
Installer’s/User’s Manual 59005-03 Rev. A Installation 2-21
Zoning
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
Refer to Section 5 Multi-Chassis Fabrics for information about zoning and multi-
chassis fabrics.Refer to the Switch Management manual for information about
creating zones.
Hard 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
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
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.