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Seagate HDD SATAII 1TB 32MB 7.2K Print
February 2011
Seagate® Constellation™ ES SATA 3-Gb/s 1-TB Hard Drive
Seagate® Constellation™ ES fourth-generation drives are among the highest capacity drives available and are the only 6-Gb/s SAS nearline hard drives on the market. These drives feature enterprise-class reliability, and power and performance efficiencies, making them ideal for business-critical, 24x7 multi-drive server and storage environments.constellation-es-magic-320x340.png
Key Features and Benefits
  • Reduces design and support costs by building on the Seagate best-in-class enterprise storage foundation
  • Features the maximum capacity available — up to 2 TB — in a 3.5-inch enterprise-class hard disc drive
  • Features a traditional 3.5-inch form factor with enhanced rotational vibration tolerance and high data integrity for enterprise-class reliability in a cost-effective drive
  • Delivers proven reliability, with an MTBF* of 1.2 million hours
  • Lets you choose a 3-Gb/s Enterprise SATA or 6-Gb/s SAS interface, which eases integration and delivers up to double the throughput of traditional 3-Gb/s nearline hard drives
  • Reduces energy and cooling costs, with the lowest power consumption of any nearline 3.5-inch drive
  • Includes Seagate PowerChoice™ technology for even greater on-demand power savings during slow or idling periods
  • TCG-compliant, Self-Encrypting Drive (SED) security option (SAS models only) eliminates the need to overwrite or physically destroy drives, enables safe return of drives for warranty or expired lease purposes, and allows organisations to repurpose or sell hard drives securely
  • Meets regulatory data security compliance requirements and is FIPS 140-2 Validated™ to protect data classed as Sensitive but Unclassified and Protected 
Model Number ST31000524NS
Interface SATA 3Gb/s
Cache 32MB
Capacity 1TB
Areal density (avg) 347Gb/in2
Guaranteed Sectors 1,953,525,168
Weight (typical) 610g (1.344 lb)
Spin Speed (RPM) 7200 RPM
Average latency 4.16ms
Random read seek time <8.5ms
Random write seek time <9.5ms
I/O data transfer rate 300MB/s
Unrecoverable read errors 1 in 1015
MTBF 1,200,000 hours
Annual Failure Rate 0.73%
Average idling power 5.0W
Maximum starting current, DC 2.8
Ambient Temperature
Operating 5°–60°C
Non-operating -40°–70°C
Maximum operating temperature change 20°C per hour
Maximum non-operating temperature change 30°C per hour
Operating shock (max) Read 70 / Write 40 Gs for 2ms
Non-operating shock (max) 350 Gs for 2ms
Acoustics (Idling Volume) 2.2 bels
Acoustics (Seek Volume) 2.8 bels

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