Power Synchronized Connections - Fujitsu ETERNUS DX60 S2 User Manual

Chapter 3 Connections

3.4 Power Synchronized Connections

3.4 Power Synchronized Connections
This section describes connections to automatically control powering the ETERNUS DX Disk
storage system on and off with a server.
■
Power synchronized unit
A power synchronized unit enables the ETERNUS DX Disk storage system 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 Disk storage system. 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.
The power synchronized unit detects the AC power output of the target devices for power syn-
chronization and commands the ETERNUS DX Disk storage system 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 Disk storage system 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 Disk storage system 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.
49
ETERNUS DX60 S2 Disk storage system User's Guide -Site Planning-
Copyright 2012 FUJITSU LIMITED P3AM-5492-04ENZ0