User`s guide

SET FAILOVER
SET FAILOVER
Places THIS_CONTROLLER and OTHER_CONTROLLER into a dual-redundant
configuration.
Format
SET FAILOVER COPY=configuration-source
Parameters
COPY= configuration-source
Specifies where the ‘‘good’’ copy of the device configuration resides.
If THIS_CONTROLLER is specified for configuration-source, all the device
configuration information on THIS_CONTROLLER (the one that either the
maintenance terminal is connected to or the virtual terminal is connected to) is
copied to the other controller.
If OTHER_CONTROLLER is specified for configuration-source, all the device
configuration information on the OTHER_CONTROLLER (the controller that
either the maintenance terminal or the virtual terminal connection is not
connected to) is copied to this controller.
Description
The SET FAILOVER command places THIS_CONTROLLER and the
OTHER_CONTROLLER in a dual-redundant configuration. After entering
this command, if one of the two controllers fail, the devices and cache (if any)
attached to the failed controller become available to and accessible through the
operating controller.
CAUTION
All device configuration information on the controller not specified by
the COPY= parameter is destroyed and overwritten by the configuration
information found in the controller specified by the COPY= parameter.
Make sure you know where your good configuration information
is stored, or you have a complete copy of the device configuration,
BEFORE entering this command.
A considerable amount of work and effort is lost by overwriting a good
configuration with incorrect information if the wrong controller is specified
by the COPY= parameter.
Also note that due to the amount of information that must be passed
between the two controllers, this command may take up to 1 minute to
complete.
B–60 Command Line Interpreter