StorageTek StorageNet 4000 - Manual (Page 19)

ZONING Components
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The following three terms are used to differentiate between these configurations:
Defined Configuration
The Defined Configuration is the complete set of all zone objects that have been defined in the
Fabric. There may be multiple zone configurations defined (although only one can be in effect
at a time). There may be inconsistencies in the definitions, there may be zones or aliases that
are referenced but are not defined, or there may be duplicate members. The Defined
Configuration is the current state of the administrator’s input.
Effective Configuration
The Effective Configuration is a single zone configuration that is currently in effect. The
devices that an initiator sees are based on this configuration.
The Effective Configuration is built when you enable a specified zone configuration. This
configuration is compiled by checking for undefined zone names, or zone alias names, or other
inconsistencies by expanding zone aliases, removing duplicate entries, and then building the
Effective Configuration.
Saved Configuration
The Saved Configuration is a copy of the defined configuration plus the name of the effective
configuration which is saved in flash memory by the cfgSave command. There may be
differences between the saved configuration and the defined configuration if you have
modified any zone definition and have not saved them.
The Saved Configuration is automatically reloaded by the switch on power up, and if a
configuration was in effect when it was saved, the same configuration is reinstated with an
automatic cfgEnable command.