HP StorageWorks 2.128 SAN Director Switch - Manual (Page 177)

Fabric OS 5.x administrator guide 177
13 Administering advanced zoning
This chapter provides procedures for using the HP Advanced Zoning feature.
Zoning terminology
The following terms are used in the advanced zoning procedures:
• A zone is a region within the fabric where a specified group of fabric-connected devices (called zone
members) have access to one another. When zoning is enabled, objects not explicitly defined in a
zone are isolated, and members in the zoned fabric do not have access to them.
• A group of one or more zones is called a zone configuration.
• The complete set of all zone members defined in a fabric is called the defined zone configuration.
• Zoning procedures change zone objects in the defined configuration. When you enable a
configuration with the
cfgEnable
command, it becomes the effective zone configuration. The
effective zone configuration is restored after a switch reboot.
• A copy of the defined zone configuration (plus the name of the effective zone configuration) can be
saved with the
cfgSave
command. The resulting saved zone configuration is restored after a switch
reboot. If you make changes to the defined zone configuration but do not save them, the defined zone
configuration and the saved zone configuration will be different.
Advanced zoning licenses are installed as active on all HP StorageWorks switches when they ship from
the factory. They need to be reinstalled only if the license has been removed.
If a Zoning license is removed, you must make sure it is reinstalled properly on the affected switch before
attempting the
cfgEnable
zoning operation. Failure to follow these steps can cause inconsistency of the
zoning configuration on the affected switches if a zoning operation is attempted from a remote switch in
the fabric. On the affected switches, an error message indicates that the Zoning license is missing.
You can use zones to logically consolidate equipment for efficiency or to facilitate time-sensitive functions,
for example, to create a temporary zone to back up non-member devices.
Any zone object connected to the fabric can be included in one or more zones. Zone objects can
communicate only with other objects in the same zone. For example, consider Figure 5 , which shows:
• Three zones are configured, named Red, Green, and Blue.
• Server 1 can communicate only with the Loop 1 devices.
• Server 2 can communicate only with the RAID and Blue zone devices.
• Server 3 can communicate with the RAID device and the Loop1 device.
• The Loop 2 JBODs are not assigned to a zone; no other zoned fabric device can access them.
Figure 5 Zoning example
JBO
Blue zone
Green zone Red zone
Server1 Loop 1
RAID
Server3