Dot Hill Systems II 200 FC service manual Hardware Loop ID, Firmware Host-Side Connection Mode

Table A-2SANnet II 200 FC, SATA, and SATA SE Array Highlights (Continued)

Feature	Description
Density	•	Up to 1752 GB in a RAID array (with 146-GB drives)
	•	Up to 4800 GB in a RAID array (with 400-GB drives)
	•	21 in. (53.34 cm) chassis depth
	•	SANnet II 200 FC RAID supports up to eight expansion units
	•	SANnet II 200 SATA RAID supports up to five expansion units
	•	SANnet II 200 SATA SE RAID does not support expansion units
Reliability	•	Redundant hot-swappable FRUs
	•	Single or redundant active/active hot-swappable RAID controllers
	•	N+1 hot-swappable power and cooling
	•	NEBS Level 3 and HALT test certified; designed to meet 99.999% reliability
RAID System	•	Web-based 10/100BASE-T Ethernet support
Storage Resource	•	Serial port out-of-band support with modem control
Management	•	RAID Levels 0, 1, 1+0, 3, 3+0, 5, and 5+0
	• Up to 1024 LUNs
	•	SNMP traps and MIB in firmware
	•	1-GB cache memory standard
	•	256-GB cache memory standard for SANnet II 200 SATA SE arrays
	•	SANnet II 200 FC arrays include four channels that are user configurable as
		drive or host channels and two channels are dedicated drive channels
	•	SANnet II 200 SATA arrays include two channels that are user configurable as
		drive or host channels, two channels that are dedicated drive channels, and two
		channels that are dedicated host channels
	•	SANnet II 200 SATA SE arrays include six channels that are dedicated host
		channels
	•	Support for SANscape and Diagnostic Reporter management software

The following topics briefly describe specific hardware and firmware features.

A.2.1 Hardware Loop ID

Each device communicating on an arbitrated loop requires an AL_PA, the Arbitrated Loop Physical Address. The host Fibre Channel supports a single hard loop ID in the range from 0 to 125. The drive channel allows up to 125 devices to be connected to a single loop.

The controller supports automatic loop ID assignment on the drive channel. A hard loop address ID is assigned to the disk drives by setting the radial switch.

A.2.2 Firmware Host-Side Connection Mode

The controller default is Loop Only in Host-side Parameters.

Appendix A SANnet II 200 FC, SATA, and SATA SE Array Specifications A-3