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Chapter 3 Connections
3.5 Power Synchronized Connections
ETERNUS DX80 S2/DX90 S2 Disk storage system User’s Guide -Site Planning-
Copyright 2013 FUJITSU LIMITED P3AM-4822-12ENZ0
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• When connecting one or two servers
Figure 3.18 Power control using a power synchronized unit (when connecting one or two 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.
RS232C cable
Server
ETERNUS DX
Disk storage system
PWC
UPS setting
Power synchronized unit
PWC
UPS
UPS
management
software
An instruction is
issued to turn on/off
the ETERNUS DX
Disk storage
system when AC
output/no AC output
is detected.
Turns on: 1
Turns off: 2
3
4
Turns on: 2
Turns off: 1