Seagate ST3146855LW CHEETAH15.5 3.5", 146GB, 15KRPM, 8MB, U320, 68PIN

Cheetah® 15K.5 Ultra320 SCSI 146-GB Hard Drive
ST3146855LW
The Cheetah® 15K.5 hard drive enables manageable tiered storage solutions without compromising performance or reliability. Cheetah 15K.5 drives deliver cost-effective solutions, allowing systems to keep up with increasing performance needs over a longer period of time.
Key Features and Benefits
* 16-MB cache
* Ultra320 SCSI 68-pin interface
* Perpendicular recording technology for maximum capacity
* Up to 125-MB/s sustained transfer rate
* 30 percent more IOPS than 10K 3.5-inch drives
* Reduced RAID rebuild times
* Highest reliability rating in the industry
* Lower total cost of ownership (TCO)
* 5-year warranty
Applications
* Workstations
* Midrange and high-end servers
* Direct attached (JBOD/RAID) storage
* Storage area networks (SAN)
* Network attached storage (NAS)
* High-performance computing (scientific/technical data)
* Data streaming, mining, visualization and analysis
* Online transaction processing (OLTP)
* Collaboration (groupware, email, e-learning, messaging)

The Cheetah 15K.5 is mainstream enterprise disc drive storage. It is the best price/performance, lowest cost of ownership, 3.5-inch disc drive, with the industry's highest 3.5" disc drive reliability.

Specifications 146.80 GB
Model Number ST3146855LW
Interface Ultra320 SCSI
PHYSICAL
Height (max) 26.11 mm (1.028 inches)
Width (max) 101.85 mm (4.010 inches)
Length (max) 146.99 mm (5.787 inches)
Weight (typical) 839 grams (1.85 pounds)
Cache 16 MBytes
Capacity 146.80 GB
Areal density (avg) 110000 Gbits/inch2
Guaranteed Sectors 286749488
Number of pins on the I/O connector 40
PERFORMANCE
Spindle Speed 15000 rpm
Average latency 2.0 msec
Random read seek time 3.50 msec
Random write seek time 4.0 msec
RELIABILITY
MTBF 1400000 hours
Annual Failure Rate 0.62
Power-on hours 8760 hours
Unrecoverable read errors 1 in 1016
Recoverable read errors 10 in 1012
ENVIRONMENT
Temperature
Ambient operating temperature (min) 5 degrees C
Ambient operating temperature (max) 55 degrees C
Ambient nonoperating temperature (min) -40 degrees C
Ambient nonoperating temperature (max) 70 degrees C
Maximum operating temperature change 20 degrees C per hour
Maximum nonoperating temperature change 20 degrees C per hour
Minimum operating case temperature 5 degrees C
Maximum operating case temperature 50 degrees C
Humidity
Minimum Relative humidity (operating) 5 %
Maximum Relative humidity (operating) 95 %
Minimum Relative humidity (nonoperating) 5 %
Maximum Relative humidity (nonoperating) 95 %
Maximum allowable humidity change 20 % per hour
Altitude
Operating altitude (min) -305 meters
Operating altitude (min) -1000 feet
Operating altitude (max) 3048 meters
Operating altitude (max) 10000 feet
Nonoperating altitude (min) -305 meters
Nonoperating altitude (min) -1000 feet
Nonoperating altitude (max) 12210 meters
Nonoperating altitude (max) 40000 feet
Shock
Vibration
Operating Shock (max) 60 Gs
Operating shock 2 msec
Nonoperating Shock (max) 250 Gs
Nonoperating shock 2 msec
Operating vibration 0.5 Gs
Operating vibration 10 to 500 Hz
Nonoperating vibration 2.0 Gs
Nonoperating vibration 22 to 500 Hz Hz