Galaxy GHDX2-2430S/R-24F4D Installation and Hardware Reference Manual
A SAS expansion port comes with each RAID controller and provides easy connectivity to terabytes of expansion capacity over the 4x, wide SAS link cables.
Two (2) RS-232C (audio jack) serial port connectors are located on the controller faceplate. One serial port (COM1) enables serial communication between the controller and an external PC running terminal emulation software that can be used to configure and manage the RAID subsystem. The second serial port (COM2) connects to an uninterruptible power supply (UPS). An RJ-45 Ethernet connector allows telnet access and web-based management using the included browser-based or Java-based versions of the RAIDWatch manager software.
Disk drives in the front section of the subsystem are directly mated with a common backplane. The backplane receives a maximum of twenty-four (24) SATA-II hard drives that should be separately purchased.
Two (2) redundant, hot-swappable, dual-fan cooling modules protect the RAID subsystem from overheating and three (3) redundant, hot-swappable, 1U 405W power supply unit (PSU) modules provide constant power to the RAID subsystem. The modular nature of the subsystem and the easy accessibility to all major components ensure that the subsystem can be reliably and efficiently operated and maintained.
1.1.1Enclosure Chassis
1.1.1.1 Chassis Overview
The Galaxy HDX2 24bay subsystem comes with a 4U compact steel chassis and aluminum alloy framework for even distribution of component heat. A back-end PCB is enclosed in thick gauge sheet metal that divides the enclosure internally into the front and rear sections. (See Figure 1-2) The front section accommodates twenty-four (24) drive trays (with their associated hard drives) and the rear section accommodates three (3) PSU modules, two (2) dual-fan cooling modules, and RAID controllers in a single- or dual- controller configurations. The two (2) foldable handles on the front of the chassis enable you to easily extract the chassis from a rack cabinet. The subsystem enclosure can be mounted into standard 19-inch rack cabinets using separately purchased slide rails.
