Figure 98 Power Supply Control Using A Power Synchronized Unit (When Connecting Three Or More Servers) - Fujitsu ETERNUS DX S5 Series Design Manual

5. Connection Configuration
Power Synchronized Connections
• When connecting three or more servers
Figure 98
Servers)
Turns on: 1
Turns off: 2
UPS unit for
Server#1
UPS unit for
Server#0
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
Power Supply Control Using a Power Synchronized Unit (When Connecting Three or More
Turns on: 2
Turns off: 1
Server#1
Server#0
Power synchronized
unit#0
PWC PWC
3
Server#3
AC sensor
unit#1
Server#2
AC sensor
unit#0
ETERNUS DX
4
PWC
ETERNUS DX
4
PWC
201
UPS unit for
Server#3
UPS unit for
Server#2
Design Guide