Description
Model number ST3400620NS
Model Name Barracuda ES
Form Factor(width) 3.5-inch
Form Factor(height) 1-inch
Physical Specifications
Height 26.1 mm
Width 101.6 mm
Length 146.99 mm
Weight 0.58 kg
Capacity/Interface
Formatted Capacity 400.2 Gbytes
Performance
Internal Transfer Rate (max) 1,030 Mbits/sec
Avg Formatted Transfer Rate 70 MBytes/sec
Average Seek Time, Read 8.5 msec typical
Average Seek Time, Write 9.5 msec typical
Track-to-Track Seek, Read 0.8 msec typical
Track-to-Track Seek, Write 1 msec typical
Average Latency 4.16 msec
Default Buffer (cache) Size 16,384 Kbytes
Spindle Speed 7200 RPM
Spinup Time 15 sec
Power-on to Ready Time 15 sec
Configuration
Number of Discs (physical) 3
Number of Heads (physical) 5
Bytes Per Sector 512
Areal Density (Mbits/sq in) 114,400 Mbits/square inch
Track Density (TPI) 145,000 tracks/inch
Recording Density (BPI, max) 781,000 bits/inch
Recording Method Perpendicular
Electrical Requirements
Typical Current (12VDC +/- 10%) 0.52 amps
Startup Current (12VDC +/- 10%) 2.8 amps
Typical Current (5VDC +/- 5%) 0.611 amps
Startup Current (5VDC +/- 5%) 0.772 amps
Seek Power (typ) 12.6 watts
Read/Write Power (typ) 13 watts
Idle Power (typ) 9.3 watts
Environmental Specifications
Max Operating Shock (2-msec) 63 Gs
Max Nonoperating Shock (2-msec) 225 Gs
Operating Temperature (max) 55 deg C
Operating Temperature (min) 5 deg C
Nonoperating Temperature (max) 70 deg C
Nonoperating Temperature (min) -40 deg C
Operating Temperature Change (max) 20 deg C/hr
Nonoperating Temperature Change (max) 30 deg C/hr
Operating Humidity (max) 90 percent
Nonoperating Humidity (max) 95 percent
Operating Humidity Change (max) 30 percent per hour
Operating Wet Bulb Temp (max) 37.7 deg C
Operating Altitude (max) 3,048 m
Operating Altitude (min) -60.9 m
Nonoperating Altitude (max) 40,000 m
Nonoperating Altitude (min) -200 m
Acoustics, Idle (sound power, typ) 2.5 Bels
Reliability
MTBF (Hours) 1,200,000 hours
Nonrecoverable Read Errors 1 per 1014 bits read
Supports S.M.A.R.T. Yes
Service Life 5 year(s)
Limited Warranty Period 5 year(s)