NEC SIGMABLADE N8406-017, Manual

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Emergency power off (EPO)
In the case of an environmental disaster such as a fire, earthquake, etc., a secondary disaster should
be prevented by shutting down the power of computers, uninterruptible power supplies (UPS),
and/or air conditioners by performing emergency power off (EPO). In the event of an emergency
requiring power-off of units and cards, perform EPO by referring to the User‟s Guide of the Blade
Enclosure.
Because there is a risk of data corruption when EPO is performed, clearly define scenarios to
perform EPO and familiarize yourself with the scenarios and the procedures. Operate your system
with the conditions and tasks of EPO notified to those who are concerned.