HP Array Controller HSG V8.7 Software - Manual (Page 309)

CLI Commands B–37
CLEAR_ERRORS controller INVALID_CACHE
Clears an invalid cache error and allows the controller and cache to
resume operation. If the error is due to an incorrectly-mirrored
configuration, the controller indicates mirrored mode status after the
error is cleared.
Use this command for the following situations:
n When the controller or cache modules have been replaced, resulting
in mismatched data between the controllers.
n When the controller or cache module is replaced while data is still
in cache and not properly flushed with the SHUTDOWN or SET
NOFAILOVER COPY= commands.
Syntax
CLEAR_ERRORS controller INVALID_CACHE
Spell out INVALID_CACHE when using this command.
Parameters
controller
Identifies which controller is to receive the CLEAR_ERRORS
command. You must specify THIS_CONTROLLER or
OTHER_CONTROLLER.
data-retention-policy
DESTROY_UNFLUSHED_DATA
NODESTROY_UNFLUSHED_DATA (Default)
Instructs the controller on how to handle write-back cached data.
Specify NODESTROY_UNFLUSHED_DATA (default) to retain the cached
data and discard controller information.
Specify DESTROY_UNFLUSHED_DATA to retain the controller
information and discard the cached data.