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Chapter 3 Connections
3.4 Power Synchronized Connections
ETERNUS DX60 S2 Disk storage system User’s Guide -Site Planning-
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Copyright 2012 FUJITSU LIMITED P3AM-5492-04ENZ0
• When connecting three or more servers
Figure 3.12 Power control using a power synchronized unit (when connecting three or more
servers)
● 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 Disk storage system
startup is complete (*1).
3 Issuance of command to turn on the ETERNUS DX Disk storage system from the
power synchronized unit
4 ETERNUS DX Disk storage system startup
*1: The server must be set to suspend server OS startup until the ETERNUS DX Disk storage
system startup is complete.
ETERNUS DX
Disk storage system
PWC
Power synchronized
PWC
PWC
ETERNUS DX
Disk storage system
PWC
Server#2
AC sensor
unit#1
Server#3
Server#0
Server#1
UPS unit for
Server#2
AC sensor
unit#0
Turns on: 1
Turns off: 2
4
4
UPS unit for
Server#3
UPS unit for
Server#1
UPS unit for
Server#0
Turns on: 2
Turns off: 1
3