SCU: System Capacitor Unit
Backup power source in case of power outage
IOC: I/O Controller
Controller to control I/O
EXP: SAS Expander
Expander chip for SAS connections
DE: Drive Enclosure
IOM: I/O Module
Unit that controls I/O between controllers and drives
HD-DE: High-density Drive Enclosure
FEM: Fan Expander Module
Cooling fan module that is installed in a high-density drive enclosure
MP: Mid Plane
Board that is located between the front of the enclosure and the rear of the enclosure
(the controller (CM) or I/O module (IOM) side)
PSU: Power Supply Unit
5. Hardware Configurations
Configuration Schematics
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Fujitsu Storage ETERNUS DX100 S4/DX200 S4, ETERNUS DX100 S3/DX200 S3 Hybrid Storage Systems
Design Guide (Basic)
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