EonStor F16F-R/S4031-6/4 Installation and Hardware Reference Manual
Figure 1-12: F16F-R4031 Dual-controller Rear View
Figure 1-13: F16F-S4031 Single-controller Rear View
The rear panel shown in
Figure 1-12
accommodates the following
components:
RAID controller modules:
F16F-R4031 comes with dual-redundant
RAID controllers; and F16F-S4031 comes with a single RAID
controller. Each controller contains a main circuit board, associated
interfaces, a BBU slot, and a DIMM socket. (See
Section 1.2.3.
)
About the redundant controllers in F16F-R4031
For the dual-controller subsystems, F16F-R4031-6/4, the upper
controller module is identified as
Controller A
while the lower
controller module is identified as
Controller B
.
By factory default, the
Controller A
is the primary controller and the
Controller B
is the
secondary controller.
If
Controller A
should fail for any reason (hardware error, software
error, removal from chassis, etc.), the
Controller B
will take over and
become the new managing controller.
1-10
Product Overview
