EonStor DS S12/S16/S24 Series Hardware Manual
Controller(s):
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. There is no additional management interface.
Power supply:
The hot-swappable power supply units (PSUs) provide power to
the JBOD. A power switch is located on each PSU.
Cooling modules:
The redundant cooling modules ventilate the system and are
embedded in the power supplies.
1.2.3
Internal Backplane
An integrated backplane separates the front and rear sections of the chassis. This
circuit board provides logic level signals and low voltage power paths. Thermal
sensors and I
2
C devices are embedded to detect system temperatures and
PSU/cooling module operating status. This board contains no user-serviceable
components.
WARNING
Accessing the backplane board may lead to fatal damage of the RAID subsystem.
Also, physical contact with the backplane may cause electrical hazards.
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