Fujitsu ETERNUS DX S4 Series - Figure 1.9 Power off Using a Power Synchronized Unit

Chapter 1 Overview
1.6 Power Management for Power Synchronization
FUJITSU Storage ETERNUS DX, ETERNUS AF Configuration Guide (Power Synchronized Unit)
Copyright 2017 FUJITSU LIMITED P3AM-8012-10ENZ0
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■ Powering off sequence for turning off power or power recovery
Figure 1.9 Power off using a power synchronized unit
(0 Power failure occurred (commercial power is stopped))
1 Shutdown of all the servers
2 Shutdown of all the server UPS units
3 Issuance of command to turn off the ETERNUS DX/AF from the power synchronized unit
4 ETERNUS DX/AF shutdown
5 Shutdown of the ETERNUS DX/AF UPS unit
ETERNUS DX/AF
PWC
Power synchronized unit
PWC
UPS unit for
Server#0
Server#0
UPS unit for
Server#1
3
4
1 1
2 2
5
UPS management
software
Server#1
UPS management
software
ETERNUS DX/AF
UPS unit
UPS settingUPS setting
RS232C cable
An instruction is issued
to turn off the
ETERNUS DX/AF
when no AC output is
detected.