Infortrend S12 Series Hardware Manual page 30

EonStor / EonStor DS S12/S16/S24 Series
2U-J1000G
4
3
 Controller (1): The controller module contains a SAS expander board,
which distributes I/Os from and to the managing RAID system. The
controller also handles component status report and reports component
status through the SAS links with a RAID system.
 Dummy cage (2): For single controller systems, a dummy cage is
placed in the bottom controller position. Do not remove the dummy cage
as it will disrupt internal system airflow.
 Power supply (3): The hot-swappable power supply units (PSUs)
provide power to the JBOD. A power switch can be located on each
PSU.
 Cooling modules (4): The redundant cooling modules ventilate the
system.
1
Full
2
Single controller JBOD
30
4
3