Power Management For Power Synchronization; Figure 7 Power On Using A Power Synchronized Unit; Figure 8 Operation Timing Chart When Using A Power Synchronized Unit (Powering On) - Fujitsu ETERNUS AF Series Configuration Manual

1. Overview

Power Management for Power Synchronization

Power Management for Power Synchronization
This section explains power management with a power synchronized unit.
The power synchronized unit detects the AC power output of the target devices for power synchronization and
commands the ETERNUS DX/AF to synchronize the power with the target devices.
When the power synchronized unit detects the AC power output of any server UPS unit, the power synchronized
unit commands the ETERNUS DX/AF to turn on.
When the power synchronized unit does not detect AC power output in any of the server UPS units, the power syn-
chronized unit commands the ETERNUS DX/AF to turn off.
The server UPS unit must have a function in the management software that controls the AC power output accord-
ing to when the server powers on and off. The server UPS unit must have one unused outlet to connect to the
power synchronized unit.
Connect the power cords of the ETERNUS DX/AF and the power synchronized unit to a UPS (UPS for the ETERNUS
DX/AF) that uses a power line that is not the same as the server UPS unit. This enables power to be supplied or
stopped according to the scheduled operations and the power failure settings of the server.
■ Powering on sequence for turning on power or power recovery
Figure 7 Power on using a power synchronized unit
UPS setting
2
UPS unit for
Server#0
An instruction is
issued to turn on the
ETERNUS DX/AF
when AC output is
detected.
1
Power on of an ETERNUS DX/AF UPS unit
2
Issuance of command to turn on the server (power on of the server UPS units)
3
Server startup (OS startup is suspended)
The server OS startup is suspended until the ETERNUS DX/AF startup is complete. For the set suspend time
of the server, refer to
on)" (page
FUJITSU Storage ETERNUS AF, ETERNUS DX Configuration Guide (Power Synchronized Unit)
3, 6
3, 6
Server#0
Server#1
UPS management UPS management
software software
Power synchronized unit
PWC
RS232C cable
4
"Figure 8 Operation timing chart when using a power synchronized unit (powering
29).
Copyright 2019 FUJITSU LIMITED
UPS setting
2
UPS unit for
Server#1
ETERNUS DX/AF
PWC
5
28
1
ETERNUS DX/AF
UPS unit
P3AM-8012-14ENZ0