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Maximum Configuration
Figure 102 Maximum Configuration Diagram:
ETERNUS AF250 S2
CE
IOC
EXP
CPU
BUD
CACA
CM#0
EXP
CPU
MemoryMemory
CACA
IOC
CM#1
MP
BUD
PSU PSU
PANEL
DE
EXP
IOM#0 IOM#1
PSU PSU
MP
EXP
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
DE: Drive Enclosure
IOM: I/O Module
Unit that controls the I/O between controllers and drives
3. Hardware Configurations
Configuration Schematics
151
FUJITSU Storage ETERNUS AF250 S2, ETERNUS AF250 All-Flash Arrays
Design Guide (Basic)
Copyright 2019 FUJITSU LIMITED
P3AG-1822-09ENZ0