Seagate Cheetah 15K.4 73GB 15K 3.0Gbps Serial SCSI / SAS Hard Drive ST373454SS

Technical Specifications
Description

Model number ST373454SS
Model Name Cheetah 15K.4
Form Factor(width) 3.5-inch
Form Factor(height) 1-inch

Physical Specifications

Height 25.4 mm
Width 101.6 mm
Length 146.05 mm
Weight 0.68 kg

Capacity/Interface

Formatted Capacity 73.4 Gbytes

Performance

Transfer Rates

Internal Transfer Rate (min) 685 Mbits/sec
Internal Transfer Rate (max) 1,142 Mbits/sec
Formatted Int Transfer Rate (min) 85.6 MBytes/sec
Formatted Int Transfer Rate (max) 142.7 MBytes/sec
External (I/O) Transfer Rate (max) 300 MBytes/sec
Seek Times

Average Seek Time, Read 3.5 msec typical
Average Seek Time, Write 4 msec typical
Track-to-Track Seek, Read 0.2 msec typical
Track-to-Track Seek, Write 0.4 msec typical
Full Disc Seek, Read 7.4 msec typical
Full Disc Seek, Write 7.9 msec typical
Average Latency 2 msec
Other

Default Buffer (cache) Size 8,192 Kbytes
Spindle Speed 15K RPM
Spinup Time 20 sec
Power-on to Ready Time 3 sec

Configuration

Number of Discs (physical) 4
Number of Heads (physical) 8
Total Cylinders 50,864
Total Tracks 203,456
Bytes Per Sector 512
Track Density (TPI) 85,000 tracks/inch
Recording Density (BPI, max) 628,000 bits/inch
Bytes/Track (avg) 471,916
Recording Components
Electrical Requirements

Current

Typical Current (12VDC +/- 5%) 0.95 amps
Startup Current (12VDC +/- 5%) 2.7 amps
Typical Current (5VDC +/- 5%) 1.12 amps
Startup Current (5VDC +/- 5%) 1.64 amps
Power

Idle Power (typ) 11.8 watts

Environmental Specifications

Shock and Vibration

Max Operating Shock (2-msec) 65 Gs
Max Nonoperating Shock (2-msec) 250 Gs
Operating Vibration (max) 0.5 Gs
Nonoperating Vibration (max) 2 Gs
Temperature and Humidity

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) 20 deg C/hr
Operating Humidity (max) 95 percent
Nonoperating Humidity (max) 95 percent
Operating Humidity Change (max) 20 percent per hour
Operating Wet Bulb Temp (max) 28 deg C
Altitude

Operating Altitude (max) 3,048 m
Operating Altitude (min) -305 m
Nonoperating Altitude (max) 12,210 m
Nonoperating Altitude (min) -305 m
Acoustics

Acoustics, Idle (sound power, typ) 3.6 Bels

Reliability

MTBF (Hours) 1,400,000 hours
Recoverable Read Errors 10 per 1012 bits read
Nonrecoverable Read Errors 1 per 1015 bits read
Seek Errors 10 per 108 bits read
Supports S.M.A.R.T. Yes
Service Life 5 year(s)
Limited Warranty Period
5 year(s)