Seagate ST3146855SS

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
• Perpendicular recording technology for maximum capacity
• Up to 125-MB/s sustained transfer rate
• Average Seek Time, Read/Write: 3.5/4.0 ms
• 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)

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)

Specifications	146.8 GB
Model Number	ST3146855SS
Interface	SAS 3Gb/s
Cache	16 MBytes
Capacity	146.8 GB
Guaranteed Sectors	286,749,488
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)
PERFORMANCE
Spindle Speed	15,000 rpm
Average latency	2.0 msec
Random read seek time	3.50 msec
Random write seek time	4.0 msec
RELIABILITY
Annual Failure Rate	0.62%

Cheetah 15K.5 Product Overview

Cheetah 15K.5 Data Sheet