Seagate ST3146356SS SAS Hard Disk Drive

Capacity: 146GB
Spindle Speed: 15,000RPM
Interface Type: SAS / Serial Attached SCSI
Disk Size: 3.5″x1.0″ (LFF Hard Drive)
Sustained Throughput (MBps): 85.6 to 142.7
Average Seek Time (read/write ms): 3.4 / 3.9
Electrical Interface Speed: SAS / Serial Attached SCSI – 3.0Gbps
On-Board Cache: 16MB

The Seagate® Cheetah® 15K.6 hard drive enables manageable tiered storage solutions without compromising performance or reliability. Cheetah 15K.6 drives deliver cost-effective solutions, allowing systems to keep up with increasing performance needs over a longer period of time.

Key Advantages

• Second-generation perpendicular recording for maximum capacity
• Unprecedented performance with a 28 percent increase in sustained data rate, up to 164 MB/sec.
• Industry’s highest 3.5-inch drive reliability at 1.6-million-hours MTBF.
• Seagate proprietary PowerTrim™ technology provides a 61 percent improvement in watts/GB at idle.
• Advanced read/write technology delivers unrecoverable error rate of 1×10-16 
• Available in FC or SAS interfaces

Best-Fit Applications

All mainstream enterprise applications, such as:

• Email
• Business processing
• Transaction processing
• Decision support
• Storage area networks
• Networked attached storage
• Internet and e-commerce

Description
Model number	ST3146356SS
Model Name	Cheetah 15K.6
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	146.3 Gbytes
Performance
Transfer Rates
Internal Transfer Rate (min)	1025 Mbits/sec
Internal Transfer Rate (max)	2225 Mbits/sec
External (I/O) Transfer Rate (max)	300 MBytes/sec
Seek Times
Average Seek Time, Read	3.4 msec typical
Average Seek Time, Write	3.9 msec typical
Track-to-Track Seek, Read	0.2 msec typical
Track-to-Track Seek, Write	0.4 msec typical
Average Latency	2 msec
Other
Default Buffer (cache) Size	16,384 Kbytes
Spindle Speed	15K RPM
Spinup Time	20 sec
Power-on to Ready Time	3 sec
Configuration
Number of Discs (physical)	2
Number of Heads (physical)	3
Bytes Per Sector	512
Electrical Requirements
Power
Idle Power (typ)	14.4 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)	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)	1,600,000 hours
Nonrecoverable Read Errors	1 per 1016 bits read
Supports S.M.A.R.T.	Yes
Service Life	5 year(s)