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Seagate ST3146854SS SAS Hard Drives
Item Number: SGT-ST3146854SS-OB-OE
Manufacturer's Part Number: ST3146854SS |
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Seagate Cheetah 15K.4 146GB 15K 3.0Gbps Serial SCSI / SAS Hard Drive ST3146854SS - New Open Box
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Capacity: 146GB
Spindle Speed: 15,000RPM
Interface Type: SAS / Serial Attached SCSI
Disk Size: 3.5"x1.0" (Low Profile Hard Drive)
Sustained Throughput (MBps): 85.6 to 142.7
Average Seek Time (read/write ms): 3.5 / 4.0
Electrical Interface Speed: SAS / Serial Attached SCSI - 3.0Gbps
On-Board Cache: 8MB |
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These drives will work in any of our SAS drive trays: |
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| The Cheetah 15K.4 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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Features |
Benefits |
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15K RPM spindle speed
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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.
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Background Media Scan
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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.
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Enhanced Error Correction Code
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Better maintains performance throughout the life of the drive and reduces the probability of lost data.
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Fluid Dynamic Bearing Motor
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No ball bearings means reduced acoustics and improved reliability.
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Full Duty Cycle Reliability
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The Cheetah 15K.4 is designed to have the highest reliability, even when in used in demanding applications around the clock, 365 days per year.
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Serial Attached SCSI (3 Gb/sec)
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Serial Attached SCSI (SAS) enables high-performance 15K SAS drives to interoperate with high-capacity NL35 SATA drives helping simplify and consolidate tiered storage.
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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
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Compatibility
All SAS compatible servers including:
Dell PowerEdge 840, 1900, 1950, 1950 III, 2900, 2900 III, 2950, 2950 III, 2970, 6900, 6950, R300, R900, R905, T300, T605 Servers and PowerVault MD1000, MD3000, NF100, NF500, NF600 Storage Arrays |
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| Description |
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| Model number |
ST3146854SS |
| Model Name |
Cheetah 15K.4 |
| Form Factor(width) |
3.5-inch |
| Form Factor(height) |
1-inch |
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| Physical Specifications |
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| Height |
25.4 mm |
| Width |
101.6 mm |
| Length |
146.05 mm |
| Weight |
0.68 kg |
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| Capacity/Interface |
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| Formatted Capacity |
146 Gbytes |
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| Performance |
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| Transfer Rates |
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| 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 |
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| 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 |
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| Default Buffer (cache) Size |
8,192 Kbytes |
| Spindle Speed |
15K RPM |
| Spinup Time |
20 sec |
| Power-on to Ready Time |
3 sec |
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| Configuration |
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| 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 |
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| Electrical Requirements |
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| Current |
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| 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 |
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| Idle Power (typ) |
14.34 watts |
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| Environmental Specifications |
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| Shock and Vibration |
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| 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 |
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| 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 |
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| Operating Altitude (max) |
3,048 m |
| Operating Altitude (min) |
-305 m |
| Nonoperating Altitude (max) |
12,210 m |
| Nonoperating Altitude (min) |
-305 m |
| Acoustics |
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| Acoustics, Idle (sound power, typ) |
3.6 Bels |
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| Reliability |
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| 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 manufacturers item description/brochure |
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