EonStor DS B12/B24 Series
21
RAID controllers (1) / (2):
Each RAID controller module contains a
main circuit board and a pre-installed DIMM module. The host port
configurations will vary. For details, see
.
WARNING
Do NOT remove the dummy cage for the single-controller model. Doing so will
disrupt the internal airflow.
Power supply units (3):
The hot-swappable PSUs provide power to the system. There is a
power switch on each PSU. The PSUs also contain cooling module(s).
Cooling modules (3) / (4):
The redundant cooling modules ventilate the system and are embedded
in the power supplies. For details, please refer to
Dummy cage (5):
The dummy cage on single controller models serves to ensure proper
air-flow. Do not remove the dummy cage unless it is for maintenance
purposes.
60
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 system. Also,
physical contact with the backplane board may cause electrical hazards.
