Fujitsu ETERNUS AF250 S2 - 3 Hardware Configurations; Configuration Schematics; Figure 100 Minimum Configuration Diagram: ETERNUS AF250 S2

3. Hardware Configurations
Multiple options can be selected in the ETERNUS AF according to the customer's requirements. This chapter de-
scribes the installation conditions and standard installation rules for each component.
Configuration Schematics
The following diagrams show minimum and maximum configurations for ETERNUS AF storage systems.
■
Minimum Configuration
Figure 100 Minimum Configuration Diagram:
ETERNUS AF250 S2
CE
IOC
EXP
CPU
BUD
CA
CM#0
EXP
CPU
MemoryMemory
CA
IOC
CM#1
MP
BUD
PSU PSU
PANEL
BBU BBU
PANEL: Operation Panel
CE: Controller Enclosure
CM: Controller Module
CA: Channel Adapter
Host Interface
Memory: System Memory
BUD: Bootup and Utility Device
•
Backup area in case of power outage
•
Storage area for firmware
BBU: Battery Backup 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
MP: Mid Plane
Board that is located between the front of the enclosure and the rear of the enclosure (the controller
(CM) side)
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FUJITSU Storage ETERNUS AF250 S2, ETERNUS AF250 All-Flash Arrays
Design Guide (Basic)
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