321 Studios GHDX2-2430S-24F4D Controller Functional Specifications, Drive Tray Specifications

Appendix A: Subsystem Specifications

A.2. Controller Functional Specifications

Specification
RAID Levels		0, 1(0 + 1), 3, 5, 6, 10, 30, 50, 60, JBOD, and non-
		RAID disk spanning
Host O/S		Host O/S independent; supports all major platforms
Compatibility
Host Interface		Two 4Gbps Fibre channels via four SFP ports
Host Channels	Two pre-configured 4Gbps host channels
Drive Interface		Supports up to 24 dedicated 3Gbps SATA-II
		channels
Drive Channels		All drive channels are pre-configured, routed through
		a back-end PCB and cannot be changed
Cache Mode	Write-through and write-back
Cache Memory		Pre-installed 512MB DDR RAM DIMM, supports up
		to 2GB DDR RAM with ECC, registered
Number of LUNs		Up to 32 per ID; up to a total of 1024, configurable
		depending on the size of installed DDR memory
RCC channels		6 dedicated SATA channels for cross-controller
		synchronized cache communications
Multiple Target		Yes
IDs/Host Channel
Aliases for Target		Yes
IDs
Firmware on		Yes
Flash Memory
Drive Hot-		Yes
swapping
Controller Hot-		Yes (redundant controller models only)
swapping

A.3. Drive Tray Specifications

Specification
Height	28mm (1.1inch)
Width	110mm (4.3 inches)
Depth	218.92mm (8.6 inches)
Bezel lock	Yes

Specifications A-3