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Chapter 1 Messages and Output Destinations
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A message classification is assigned to a message, according to its level of urgency. Messages are
classified into the following four classifications, in the order of urgency: “ERROR”, “WARNING”,
“NOTICE”, and “INFO”. A message classification is also referred to as a message level.
Meanings of the messages are as follows:
y ERROR: Error message
This message indicates an error that has a critical effect to the functions, and prompt recovery by an
administrator is required. An administrator must troubleshoot and recover the system promptly.
y WARNING: Warning message
This message indicates an event that requires attention regarding the system operations, though the
event does not necessarily lead to the system down immediately. An administrator must remove the
cause of the event and take measures to operate the system normally.
y NOTICE: Notifying message
This message notifies the state of internal processes. Although the event notified by the message
does not have any effect on the main functions of disk arrays, an administrator must take appropriate
measures as necessary.
y INFO: Information message
This message indicates operating information. No measures are required.