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Constellation.2™ Hard Drives
Overview:
Seagate® Constellation.2™ drives are the most energy efficient enterprise drives on the market. Designed for enterprise robustness, Constellation.2 is available in capacities up to 1TB and offers reliable storage for high capacity servers and storage arrays in a minimal footprint.
Key Features:
- Industry’s first 2.5-inch 1TB capacity-optimized drive for dense, space-constrained data centers allows you to store twice as much data in the same footprint
- Build highly efficient bulk storage solutions while lowering your power consumption costs
- Designed for robust 24x7 operation with a 1.4M hour mean-time-between-failure (MTBF) rating
- Best-in-class rotational vibration tolerance ensures unrivaled performance in high spindle-density applications, and multi-drive firmware maximizes system availability
- Choose from 6Gb/s SAS with improved data integrity, scalability and fastest data access or SATA 6Gb/s for economical 7200-RPM performance
- TCG- compliant, Self-Encrypting Drive (SED) security option cuts IT drive retirement expenses while securely protecting data*
Specifications:
| Specifications |
|
| Model Number |
ST91000640SS |
| Interface |
6-Gb/s SAS |
| Cache |
64MB |
| Capacity |
1TB |
| Areal density (avg) |
417Gb/in2 |
| Guaranteed Sectors |
1,953,525,168 |
| PHYSICAL |
|
| Height |
14.8mm (0.583 in) |
| Width |
70mm (2.76 in) |
| Length |
100.5mm (3.957 in) |
| Weight (typical) |
200g (0.441 lb) |
| PERFORMANCE |
|
| Spin Speed |
7200 RPM |
| Average latency |
4.16ms |
| Random read seek time |
8.5ms |
| Random write seek time |
9.5ms |
| I/O data transfer rate |
600MB/s |
| Unrecoverable read errors |
1 in 1015 |
| RELIABILITY |
|
| MTBF |
1,400,000 hours |
| Annual Failure Rate |
0.62% |
| POWER |
|
| 12V start max current |
0.80A |
| 5V start max current |
0.72A |
| Average idle power |
3.85W |
| Average operating power |
6.4W |
| ENVIRONMENT |
|
| Ambient Temperature |
|
| Operating |
5°–60°C |
| Nonoperating |
-40°–70°C |
| Maximum operating temperature change |
20°C per hour |
| Maximum nonoperating temperature change |
20°C per hour |
| Shock |
|
| Operating Shock (max) |
Read 70 / Write 40 Gs for 2ms |
| Nonoperating Shock (max) |
400 Gs for 2ms |
| ACOUSTICS |
|
| Acoustics (Idle Volume) |
2.2 bels |
| Acoustics (Seek Volume) |
2.8 bels |
* Not available in all models or countries. Requires TCG-compliant host or controller support.
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About Seagate
Seagate Technology is a major American manufacturer of hard drives, founded in 1979 and based in Scotts Valley, California. Seagate hard drives are used in a variety of computers, from servers, desktops, and laptops to other consumer devices such as digital video recorders, the Microsoft Xbox and the Creative Zen Micro line of digital audio players. Seagate is the world's largest computer hard disk manufacturer and the oldest independent hard disk maker still in operation.
AVADirect Custom Computers is Authorized Seagate Reseller and System Ingerator
Partnership with leading hardware suppliers provides AVADirect great benefits of lower pricing, enhanced technical support and prioritized new product delivery to make sure that our customers always get the latest technology and the best value.
Being partnered with many quality hardware suppliers in the industry, we at AVADirect are proud to inform that we were recognized as an authorized Seagate reseller and system integrator.
We offer a complete line of Seagate products on our website available either as components in custom computer builds or as separate off-the-shelf parts, the product lines we offer consist of
Seagate Hard Drives,
Seagate Desktop Hard Drives,
Seagate Notebook Hard Drives,
Seagate Server Hard Drives,
Seagate External Hard Drives,
and other products. You can also browse all Seagate products.
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