Seagate Part #/MPN: ST3146855SS
DiscTech Item #: SGT-ST3146855SS-RF-OE-DEL
- RefurbishedCondition Levels Explained
These products have had NO problems or failures, they merely have some usage. The product has been professionally returned to excellent condition. These items have been fully tested, formatted (if appropriate) &repackaged. Hard drives are fully vetted for surface defects and wear, only healthy disks are approved for resale to our customers. Please see our refurbishing process for more details. Watch a video about our refurbishing process
- Warranty:1 Year DiscTechProduct Warranties Explained
The product has a DiscTech warranty for the time period specified. View our limited warranty
- Special Order - Ships in 5-10 business daysSpecial Order - Ships in 5-10 business days
This item has a lead time for fulfilment (as listed), this is approximate. Your credit card will be authorized in full on the day of ordering; it will not be charged until the day of shipment.
Enterprise Grade
Capacity: 146GB
Speed: 15,000RPM
Interface Types: SAS Serial Attached SCSI
Form Factor: 3.5inx1.0in LFF Hard Drive
Sector Size: 512 / 512e
Sustained Throughput: 85.6 to 142.7
Average Seek Time: 3.5 / 4.0
Electrical Interface: SAS-1 Serial Attached SCSI - 3.0Gbps
On-Board Cache: 16MB
Compatible Systems: Dell 10th Gen. 2950 / 6950
Seagate Cheetah 15K.5 146GB 15K 3.0Gbps Serial SCSI / SAS Hard Drive ST3146855SS - Refurbished OEM
The Seagate 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.
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.
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
DPN: TK237 / 0TK237 0RY491 RY491
Seagate PN#: 9Z2066-052
Compatibility:
All SAS compatible servers including:
Dell PowerEdge 2900, 2950, 6900, 6950. PowerVault MD1000
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
Alternate MPNs: TK237 0TK237 9Z2066-052 TN937 0TN937 RY491 0RY491
Weight: 1.8 lb
Warranty: 1 Year DiscTech
Refurbished
These products have had NO problems or failures, they merely have some usage. The product has been professionally returned to excellent condition. These items have been fully tested, formatted (if appropriate) &repackaged. Hard drives are fully vetted for surface defects and wear, only healthy disks are approved for resale to our customers. Please see our refurbishing process for more details. Watch a video about our refurbishing process
1 Year DiscTech Warranty
The product has a DiscTech warranty for the time period specified. View our limited warranty