Raid Controller Modules - Rorke Data Galaxy A16F-R2422 Installation And Hardware Manual

Galaxy A16F-R2422 Installation and Hardware Reference Manual
1.2.4
PN: GAL-83AF24RD16M5 ( with 512MB DDR RAM DIMM memory)
The RAID controller module contains a metal bracket, a main circuit
controller board, a management rear panel, and a pre-installed 512MB
capacity or above DDR RAM DIMM module. (See Figure 1-9) 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.
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 heart of the A16F-R2422 RAID controller subsystem is the FC-4G to
SATA-II controller board. The controller comes with two (2) pre-set FC-4G
host channels, CH0 and CH1. The subsystem connects to the external FC-
4G host computer(s) via eight (8) FC connectors, which are located on the
host connection modules. These FC connectors can auto-negotiate the speed
and determine whether the data transmission rate is 1Gbps, 2Gbps or 4Gbps.
The docking connector at the rear of the controller board is used to connect
the controller module to the backplane board. A DDR RAM DIMM socket
is strategically placed in an easily accessible location on the controller board
for easy insertion of the DDR RAM DIMM module.
FC speed detection: The FC-AL loop speed can be adjusted by using the
DIP switch on the subsystem rear panel. When auto speed is determined, the
speed auto-detection specified by the FC standard will detect the available
devices that connected to the subsystem and run at that speed. If a 1Gbps(or
2Gbps) host is connected to a 4Gbps port, it will negotiate down and run at
1Gbps(or 2Gbps). If there are two (2) 4Gbps ports on either end of the link,
the link will run at 4Gbps. For the FC speed setting, please refer to Section
4.3.2.
1-8
The RAID Controller Module
Figure 1-9: Controller Module
WARNING!
Introduction