Power Synchronized Connections; Power Synchronized Connections (Pwc); Figure 101 Power Supply Control Using A Power Synchronized Unit (When Connecting One Or Two Servers) - Fujitsu ETERNUS DX100 S4 Design Manual

4. Connection Configuration

Power Synchronized Connections

Power Synchronized Connections
This section describes the connections to automatically control powering the ETERNUS DX on and
off with a server.
In order to control powering the ETERNUS DX on and off with servers, the power control of the
ETERNUS DX must be linked with all of the connected servers.

Power Synchronized Connections (PWC)

■
Power Synchronized Unit
A power synchronized unit enables the ETERNUS DX to be powered on and off with a server. The
power synchronized unit detects changes in the AC power output of a UPS unit that is connected
to a server (server UPS unit) and automatically turns on and off the ETERNUS DX. In addition to
server UPS units, units that control the AC socket power output can also be connected. When three
or more servers are connected, power can be synchronized by adding an AC sensor unit.
●
Power Synchronization via a Server UPS Connection
The power synchronized unit detects the AC power output of the target devices for power syn-
chronization and commands the ETERNUS DX 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 to turn on.
When the power synchronized unit does not detect AC power output in any of the server UPS units,
the power synchronized unit commands the ETERNUS DX to turn off.
The server UPS unit must have a function in the management software that controls the AC power
output according to when the server powers on and off. The server UPS unit must have one unused
outlet to connect to the power synchronized unit.
• When connecting one or two servers
Figure 101 Power Supply Control Using a Power Synchronized Unit (When Connecting One or Two
Servers)
Turns on: 1
Turns off: 2
UPS
Fujitsu Storage ETERNUS DX100 S4/DX200 S4, ETERNUS DX100 S3/DX200 S3 Hybrid Storage Systems Design Guide (Basic)
UPS setting
Turns on: 2
Turns off: 1
Server
UPS
management
software
Power synchronized
unit
PWC
RS232C cable
An instruction is
issued to turn
on/off the
ETERNUS DX
when AC output/
3
no AC output is
detected.
166
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4
ETERNUS DX
PWC
P3AM-7642-32ENZ0