Seagate ST336754LC Cheetah 15K.4 36GB 15K U320 80pin SCA-2 SCSI Hard Drive

The Cheetah 15K.4 is the best performance, lowest cost of ownership, 3.5-inch disc drive. It enables higher performance with fewer drives, while offering the industry’s highest reliability.

Features

Benefits

15K RPM spindle speed
 

Delivers more I/O’s per second than 10K, and faster sustained transfer rates, enabling the same high performance to be met with fewer drives.
 

Ultra320 SCSI
 

Up to 320 Mbyte-per-second throughput and faster sustained transfer rate
 

Background Media Scan
 

Proactively scans the media for potential defects during drive idle time without using system bandwidth. It enables incipient errors to be corrected before data is lost.
 

Enhanced Error Correction Code
 

Better maintains performance throughout the life of the drive and reduces the probability of lost data.
 

Fluid Dynamic Bearing Motor
 

No ball bearings means reduced acoustics and improved reliability.
 

Full Duty Cycle Reliability
 

The Cheetah 15K.4 is designed to have the highest reliability, even when in used in demanding applications around the clock, 365 days per year.
 

Distinctions

• 30% more IOPS and more than 20% faster response times than 3.5-inch 10K drives

• The industry’s highest reliability, with 1,400,000 hour MTBF

Technical Specifications
Description
Model number		ST336754LC
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		36.7 Gbytes
Interface Type		80-pin
Performance
Transfer Rates
Internal Transfer Rate (min)		685 Mbits/sec
Internal Transfer Rate (max)		1,142 Mbits/sec
Formatted Int Transfer Rate (min)		85 MBytes/sec
Formatted Int Transfer Rate (max)		142 MBytes/sec
External (I/O) Transfer Rate (max)		320 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)		1
Number of Heads (physical)		2
Total Cylinders		50,864
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%)		0.74 amps
Startup Current (12VDC +/- 5%)		2.46 amps
Typical Current (5VDC +/- 5%)		0.59 amps
Startup Current (5VDC +/- 5%)		1.08 amps
Power
Idle Power (typ)		7.92 watts
Environmental Specifications
Shock and Vibration
Max Operating Shock (2-msec)		60 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)		50 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
Supports S.M.A.R.T.		Yes