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Chapter 1 Hardware Configurations
1.1 Controller Enclosure
ETERNUS DX80 S2/DX90 S2 Disk storage system User’s Guide -Site Planning-
Copyright 2013 FUJITSU LIMITED P3AM-4822-12ENZ0
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■ LAN ports
Two LAN ports (RJ-45) are installed in each controller.
Each LAN port is used for operation management (MNT port) and for remote support function (RMT port)
respectively.
The following table shows the LAN port specifications.
Table 1.3 LAN port specifications for controllers
■ SCU
A System Capacitor Unit (SCU) is installed in a controller as a backup power source in case of power outage.
The SCU is charged from an external power source while the ETERNUS DX Disk storage system is running nor-
mally. If a power failure is detected, data in the cache memory is saved to the non-volatile memory in the con-
troller using the SCU. There is no limit to the post-failure data retention time.
■ PWC ports
A PWC port is installed in a controller.
The PWC port is used to connect a power synchronized unit to perform power synchronization.
The following table shows the PWC port specifications.
Table 1.4 PWC port specifications
1.1.2 Power Supply Units
The power supply unit transforms input AC power from a power socket to DC power and supplies power to each
component. Two power supply units are installed in each controller enclosure.
Each power supply unit contains fans.
Interface
Transfer speed
(max.)
Connector type
Number of ports
for each controller
Ethernet
(1000Base-T/100Base-TX/10Base-T)
1Gbit/s RJ-45 2
Interface Connector type Number of ports for each controller
RS232C PWC 1