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Compaq HSZ80 Array Controller ACS Version 8.3 Configuration and CLI Reference Guide
Save Configuration
Indicate whether to save the subsystem’s configuration on the storage unit when you
initialize it:
■ NOSAVE_CONFIGURATION (default) means that the controller stores the
subsystem’s configuration in its nonvolatile memory only. Although this is
generally secure for single-controller configuration configurations, the
configuration could be jeopardized if the controller fails. For this reason, you
may initialize at least one of your storage units with the
SAVE_CONFIGURATION switch enabled.
■ SAVE_CONFIGURATION allows the controller to use 256K of each device in a
storage unit to save the subsystem’s configuration. The controller saves the
configuration every time you change it or add a patch to your controller. If the
controller should fail, you can recover your latest configuration from the storage
unit rather than rebuild it from scratch.
The save configuration option saves all configuration information normally saved
when you restart your controller except the controller serial number, product ID
number, vendor ID number, and any manufacturing fault information.
Considerations for Saving the Configuration
■ Use the SET FAILOVER COPY command to restore configuration information
in a replacement controller. See “Saving Configuration Information in Dual-
Redundant Controller Configurations,” page 3–56 for details.
■ Do not remove and replace disk devices between the time you save and restore
your configuration. This is particularly important for devices that you migrate
from another system. The controller could recover and use the wrong
configuration information on your subsystem.
■ Save your subsystem configuration as soon as possible after removing and
replacing any disk devices in your subsystem. This ensures that the devices
always contain the latest, valid information for your system.