Galaxy Raid GHDX2-2430S-16U4D Installation and Hardware Reference Manual
1-6
Subsystem
Components
1.3.3 The
RAID
Controller
Module
Figure 1-7: RAID Controller Module
PN: GAL-83AU24GE16 (without DDR RAM)
The RAID controller module that came with your subsystem contains a
controller board, a BBU adapter board, a rear-facing faceplate, and a pre-
installed DDR RAM DIMM module. The BBU adapter board is pre-
installed in the controller module and is not user-serviceable. The DDR
RAM DIMM socket is strategically placed on an easily accessible location
on the controller board. (See
Figure 1-7
) A BBU slot on the top center of
the controller module is reserved for a hot-replaceable BBU module.
The controller module contains no user-serviceable components. Except
when installing/upgrading the cache memory inside, the controller module
should never be removed or opened.
WARNING!
Although the RAID controller can be removed, the only time you should
touch the controller itself is to install the memory modules. The RAID
controller is built of sensitive components and unnecessary tampering can
damage the controller.
The RAID subsystem is managed by the SCSI-to-SATA controller board.
The controller comes with two (2) SCSI-320 host channels, CH0 and CH1.
The subsystem connects to the host through VHDCI SCSI input connectors,
and the output connectors connect expansion enclosures/subsystems. (See
Figure 1-8
)
The docking connector at the rear of the controller module mates the
controller module with the backplane board.
