Dell EMC Storage MD1280 Enclosure: руководство по обслуживанию

Technical specifications

The technical specifications of the MD1280 are displayed in the following tables.

Table 1. Technical specifications. This table provides technical specifications of MD1280
Specifications
Drives
SAS hard drives	Up to 84 SAS hot-swappable hard drives (6.0 Gbps or 12.0 Gbps) and SSDs
Enclosure Management Modules (EMM)
EMMs	Two hot-swappable I/O EMM modules
Connectivity
Configurations	Various server-attached configurations as specified by your solution provider.
Backpanel Connectors
SAS connectors	Asymmetric SAS Cabling for connection to the host and for expansion to an additional enclosure Support Mini-SAS to Mini-SAS cable universally keyed for the following lengths that are currently supported: 0.5m–6m NOTE: SAS connectors are SFF-8086/SFF-8088-compliant.
LED Indicators
Front panel	One two-digit LCD indicator for Unit ID, error code, and unit location identifier One two-color LED indicator for power status One single-color LED indicator for module fault status (enclosure as a whole) One single-color LED indicator for logical fault status (hard drive, HBA, RAID controller) One single-color LED indicator for drive drawer 1 fault status One single-color LED indicator for drive drawer 2 fault status
Disk Drive In Carrier (DDIC)	One single-color LED for hard drive fault status
6 Gbps SAS I/O module	14 one-color LED status indicators, four each for the three SAS ports, and two for the module status
Fan module	One single-color LED indicator for module status One single-color LED indicator for battery fault status (not currently used) One single-color LED indicator for fan fault status One single-color LED indicator for power status
PSU	One single‐color LED indicator for PSU fault status One single‐color LED indicator for AC fault status One single‐color LED indicator for power status
Power Supply Units (per PSU)
Watt	2.8 kW
Voltage	200–240 VAC (8.6 A–4.3 A)
Heat dissipation	191–147 W
Maximum inrush current	Under typical line conditions and over the entire system ambient operating range, the inrush current may reach 55 A for each PSU for 10 ms or less.
Available Hard Drive Power (Per Slot)
Supported hard drive power consumption (continuous)	Up to 1.16 A at +5 V,  Up to 1.6 A at +12 V
I/O Card Power (Per Slot)
Maximum power consumed by I/O Card	11 W at +12 V
Maximum available power	100 W at +12 V
Maximum available power	1 W at +5 V (standby)
Physical
Height	22.23 cm (8.75 inches)
Width	48.26 cm (19 inches)
Depth (front mounting bracket to rear surface)	91.5 cm (36 inches)
Depth (front surface to rear surface)	96 cm (38 inches)
Full Weight (maximum configuration)	130.7 kg (287.5 lb)
Shipping Weight (without hard drives)	62 kg (137 lb)
Environmental
NOTE: For more information about environmental measurements for specific system configurations, see Dell.com/environmental_datasheets.
Storage	–40°C to 65°C (–40°F to 149°F) at a maximum altitude of 12,000 m (39,370 ft)
Relative humidity
Operating	10 percent to 80 percent (non-condensing) with 29°C (82.4°F) maximum dewpoint
Storage	5 percent to 95 percent (noncondensing) with 33°C (91°F) maximum dewpoint
Maximum vibration
Operating	0.21 g at 5–500 Hz for 15 min
Storage	1.04 g at 2–200 Hz for 15 min
Maximum shock
Operating	Half-sine shock 5 g +/- 5 percent with a pulse duration of 10 ms +/- 10 percent in operational orientations only
Storage	z-axis: 30 g 10 ms half-sine x-axis and y-axis: 20 g 10 ms half-sine
Altitude
Operating	–16 m to 3048 m (–50 ft to 10,000 ft)
	NOTE: Maximum 35°C up to 2134 m (7000 ft), derate to 30°C for 2134 m to 3000 m (7000 ft to 10,000 ft).
Storage	–16 m to 10,600 m (–50 ft to 35,000 ft)
Airborne Contaminant Level
Class	G2 or lower as defined by ISA-S71.04-1985