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Preface xix
Normal
operation
Data destruction
Confirm the items listed below before turning off the power. Otherwise, data may
be destroyed.
• All applications have completed processing.
• No user is using the equipment.
• When the main unit power is turned off, the Power LED on the operation panel
is turned off. Be sure to confirm that the Power LED is off before turning off
the main power (uninterruptible power supply [UPS], power distribution box,
main line switch, etc.).
If necessary, back up files before turning off the system power.
Data destruction
Do not forcibly stop a domain that is operating normally. Otherwise, data may be
destroyed.
Data destruction
Do not disconnect the power cable from the AC power input while power is being
supplied. Otherwise, data stored on hard disk units may be destroyed.
Task Warning