Seagate ST3146855SS SAS Hard Disks

Seagate ST3146855SS SAS Hard Drives Image 1 image
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$169.00

Capacity:146GB
Speed:15K RPM
Interface Types:SAS
Form Factor:3.5" LFF Hard Drive
Electrical Interface:SAS-1 3Gbps
RAM:16MB
Click to see more 146GB SAS 15K RPM Drives

Description

Seagate Cheetah 15K.5 146GB 15K 3.0Gbps Serial SCSI / SAS Hard Disk ST3146855SS - Brand New OEM

 
The Cheetah 15K.5 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.
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FeaturesBenefits
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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.
 
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.5 is designed to have the highest reliability, even when in used in demanding applications around the clock, 365 days per year.
 
Serial Attached SCSI (3 Gb/sec)
 		Serial Attached SCSI (SAS) enables high-performance 15K SAS drives to interoperate with high-capacity NL35 SATA drives helping simplify and consolidate tiered storage.
 

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

Compatibility

All SAS compatible servers including:
Dell PowerEdge 2900, 2950, 6900, 6950. PowerVault MD1000
 

Specifications

Description
Model number ST3146855SS
Model Name Cheetah 15K.5
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 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 16,384 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 406,912
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%) 1.17 amps
Startup Current (12VDC +/- 5%) 2.86 amps
Typical Current (5VDC +/- 5%) 1.12 amps
Startup Current (5VDC +/- 5%) 1.7 amps
  Power  
Idle Power (typ) 14.34 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)
Click here to view the manufacturer's item description/brochure

Weight: 1.8 lb

Warranty: 1 Year DiscTech

Condition

Brand New

Warranty

1 Year DiscTech Warranty

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