Fujitsu ETERNUS DX100 S5 - Figure 98 Power Supply Control Using a Power Synchronized Unit (When Connecting Three or more Servers)

• When connecting three or more servers
Figure 98 Power Supply Control Using a Power Synchronized Unit (When Connecting Three or More
Servers)
ETERNUS DX
PWC
Power synchronized
unit#0
UPS unit for
Server#0
PWC
PWC
ETERNUS DX
PWC
Server#2
AC sensor
unit#1
Server#3
Server#0
UPS unit for
Server#1
Server#1
UPS unit for
Server#2
UPS unit for
Server#3
AC sensor
unit#0
Turns on: 1
Turns off: 2
Turns on: 2
Turns off: 1
4
4
3
Powering on sequence
1 Power on of all the server UPS units
2 Server startup
The server OS startup is suspended until the
ETERNUS DX startup is complete (*1).
3 Instruction from the power synchronized unit to turn on the ETERNUS DX
4 ETERNUS DX startup
*1: The server must be set to suspend server OS startup until the ETERNUS DX startup is complete.
Powering off sequence
1 Shutdown of all the servers
2 Shutdown of all the server UPS units
3 Instruction from the power synchronized unit to turn off the
ETERNUS DX
4 ETERNUS DX shutdown
5. Connection Configuration
Power Synchronized Connections
201 Design Guide