Seagate
Seagate ST91000640SS 1TB 7200RPM 2.5" SAS internal hard drive
Enterprise 2.5" SAS drive with 1000GB capacity, 7200RPM speed, 64MB cache and 1.4M-hour MTBF for 24×7 operation
- Enterprise density up to 76TB per square foot
- Nearline reliability with 1.4M hours MTBF
- 24×7 environmental robustness for continuous operation
- 50% better watts per TB reduces power costs
- 18% sequential performance improvement over prior generation
Seagate Constellation.2 1TB SAS Lot
This product is a lot of ten new Seagate Constellation.2 ST91000640SS enterprise hard drives. Each drive offers 1000GB capacity, 7200RPM rotational speed and a 6Gb/s SAS interface with 64MB cache. The 2.5-inch form factor suits dense server and storage arrays.
Who this suits and who should look elsewhere
System integrators and data-centre operators needing multiple nearline drives for 24×7 workloads will match the 1.4M-hour MTBF and high areal density. Buyers who require only a single drive, a different interface, or a retail-packaged unit should look at other options.
Deciding specification
The SAS 6Gb/s interface is the single specification that determines compatibility; the host system must provide a matching SAS backplane or controller for these drives to function.
Besonderheiten
- Enterprise density up to 76TB per square foot
- Nearline reliability with 1.4M hours MTBF
- 24×7 environmental robustness for continuous operation
- 50% better watts per TB reduces power costs
- 18% sequential performance improvement over prior generation
Technische Daten
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Fragen zu diesem Artikel
What is the MTBF rating for the ST91000640SS under 24×7 operation?
The drive is rated at 1.4M hours MTBF for enterprise-class reliability in continuous 24×7 environments.
How much power does the Constellation.2 consume per terabyte compared to the previous generation?
It delivers over 50% improvement in watts per TB, lowering power costs for sustained all-day workloads.
Which controller interface is required to connect this 2.5" SAS drive?
A SAS 6Gb/s host bus adapter or RAID controller with a compatible 2.5" SAS backplane is needed.
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