Dell DD and PowerProtect Hardware 8.0 Features and Specifications

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Technical specifications

This section describes the technical specifications of the enclosure.

Enclosure dimensions

Table 1. Enclosure dimensions2U24 enclosure dimensions
Specification	Dimensions
Height	86.8 mm (3.4 in.)
Width	444 mm (17.5 in.)
Depth	497 mm (19.5 in.)

Enclosure weights

Table 2. Enclosure weightsWeight of the 2U24 enclosure
CRU/component	Weight
Storage enclosure (empty)	9.2 kg (20.25 lb)
Disk drive carrier	0.24 kg (0.53 lbs)
Blank disk drive carrier	—
Power Supply Unit (PSU)	0.89 kg (1.96 lb)
Access Module (AM)	2.52 kg ( 5.55 lb)
Storage enclosure (includes fully populated drive carriers, and mounting rails)	21.76 kg (47.99 lb)

NOTE:

Weights shown are nominal, and subject to variances.
Weights may also vary due to the number of disk drives installed.

Environmental requirements

Table 3. Ambient temperature and humidityAmbient temperature and humidity
Specification	Temperature range	Max. temperature gradient	Relative humidity
Operating (ASHRAE A3)	5°C to 40°C (41°F to 104°F)	20°C per hour	8% to 85% non-condensing
Non-operating	-40°C to +65°C (-40°F to +149°F)	-	10% to 95% non-condensing

Table 4. Additional environmental requirementsEnvironmental requirements
Specification	Measurement/description
Airflow	System must be operated with low pressure rear exhaust installation. Back pressure created by rack doors and obstacles not to exceed 5 Pa (~0.5 mm H₂O).
Altitude, operating	900 meters @ 45°C ; 3050 meters @ 33°C NOTE:Ramp Altitude at 3.81m/s and temperature at 20˚C/Hr (36˚ F/Hr)
Altitude, non-operating	Maximum 12,000 m (39,370 ft)
Acoustics	Operating sound power ≤ 8.0 Bels L_WAd (@ 23 ± 2°C )
Orientation and mounting	19" rack mount

Power-on and reset

The firmware boot time from power-on reset or soft reset to SMP target readiness is typically less than two minutes. Actual boot time may vary depending on your specific configuration.

Power supply unit

Table 5. Power supply unit specificationsPower supply unit specifications
Specification	Measurement/description
Maximum output power	800 W maximum continuous output power at high line voltage
Power consumption (operating maximum)	517 VA (512W) maximum
Voltage	Low line 100-127 VAC High line 200-240 VAC 240 VDC (China only)
Frequency	50/60 Hz
Power factor correction	≥ 95% @ 100% load
Efficiency	At 230 VAC input voltage (RMS) >90% @ 10% load >94% @ 20% load >96% @ 50% load >92% @ 100% load
Holdup time	10 millisecond @ 100% load
Main inlet connector	IEC60320 C14 connector
Weight	0.89 kg (1.96 lb)