Specifications

4–47
Compaq HSG80 Array Controller ACS Version 8.4 Configuration and CLI Reference Guide
■ 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 the following information:
❏ 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.
❏ Patch information
The save configuration option does not save the following information:
❏ Software or hardware upgrades
❏ Inter-platform conversions
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 Configurations,” page 4–48 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.
■ When you incorporate a spare into a storageset that you initialized with the
INITIALIZE SAVE_CONFIGURATION command, the controller reserves
space on the spare for configuration information. The controller updates this
information when the configuration changes.
■ You cannot use a storageset that contains user data to save your subsystem
configuration unless you backup and restore the user data.