Dot Hill Systems II 200 FC service manual Physical Specifications, Layout Map, Rack Placement

Table 2-2Power Specifications

AC power	Voltage and frequency 90 to 264 VAC, 47 to 63 Hz
Input current	5A max
Power supply output voltage	+5 VDC and +12 VDC
DC power	–48 VDC (–36 VDC to –72 VDC)

2.5Physical Specifications

Use the physical specifications in Table 2-3to plan the location of your array.

Table 2-3Physical Specifications

Category	Description
Dimensions	2U 3.45 inches (8.76 cm.) height
	21 inches (53.34 cm.) chassis depth
	17.5 inches (44.6 cm.) width
	19 inches (48.26 cm.) width with ears
Installation	For FRU component removal and replacement, 15 inches (37
clearances	cm) is required front and back.
Cooling clearances	6 inches (15 cm) is required front and back. No cooling
	clearance is required on the sides or the top and bottom of the
	array.

2.6Layout Map

It is helpful to create a sketch or layout map to indicate the exact location of the array as well as the location of the hosts, console, and Ethernet connections that will be connected to it.

As you lay out the components, consider the cable lengths that will be used.

2.6.1Rack Placement

Follow these guidelines when preparing a rackmount placement for your system:

■Ensure that the floor surface is level.

■Leave enough space in front of the rack to access components for servicing.

■Leave enough space in back of the rack to access components for servicing.

■Keep power and interface cables clear of foot traffic. Route cables inside walls, under the floor, through the ceiling, or in protective channels or raceways.

2-4SANnet II 200 FC, SATA, and SATA SE Array Installation, Operation, and Service Manual • March 2005