• Storage Capacity: 8 TB
  • Drive Interface: SATA
  • Spindle Speed (rpm): 7200
  • Drive Type: Internal
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Capacity-Optimized Enterprise Hard Drive for Bulk-Data Applications

8TB, 3.5-inch enterprise drive with industry-leading 6-disk technology, resulting in 33% more storage in the same storage slot

Advanced Write Caching feature to utilize enhanced algorithms, resulting in the industry's highest nearline storage workload performance efficiencies-100% performance improvement in random writes over last-generation drive

Widely accepted, proven ninth-generation conventional perpendicular recording technology for reliable access to unstructured data in bulk storage applications

12Gb/s SAS and SATA 6Gb/s interfaces in industry-standard advanced formats for easy integration into replicated and RAID multi-drive storage servers and systems

State-of-the-art cache, on-the-fly error-correction algorithms, super parity and end-to-end SAS-based data integrity for accurate data storage

Industry-leading rotational vibration tolerance design helps ensure consistent performance in dense multi-drive systems

Engineered for 24—7 workloads of 550TB/yr

Robust performance with dual processors, ramp load technology, top-cover-attached motor and humidity sensor for optimum performance in all chassis

Seagate Secure™ Self-Encrypting Drive featuring Instant Secure Erase for cost-saving drive retirement and secure data-at-rest protection2

Seagate SeaTools™ diagnostic software to provide drive self-tests ensuring unnecessary downtime and maximizing TCO

Best-Fit Applications

Hyperscale applications/cloud data centers with replicated storage

Massive scale-out data centers and big data analytics

High-capacity density RAID storage

Mainstream enterprise external storage arrays (SAN, NAS, DAS)

Distributed file systems, including Hadoop and Ceph

Enterprise backup and restore-D2D, virtual tape

Centralized surveillance


  • Mfr Part Number: ST8000NM0055
  • Capacity: 8 TB
  • Rotational Speed: 7200 RPM
  • Cache: 256 MB
  • Interface: SATA 6Gb/s
  • Max Sustainable Transfer Rate: up to 237 MB/s
  • Average Latency: 4.16 ms
  • Shock:
    • Operating:
      • Read: 70Gs @ 2ms
      • Write: 40Gs @ 2ms
    • Non-operating: 250Gs @ 1ms and 2ms
  • Vibration:
    • Non-operating: 5.0 Gms @10Hz to 500Hz
  • Power Management:
    • Idle Average:7.5 W
    • Average Operating Power: 10.4 W
    • Power Supply Requirements:+12V and +5V
  • MTBF: 2,000,000 hours
  • Dimensions (WxDxH): 4.010 x 5.787 x 1.028 inch / 101.85 x 147.00 x 26.10 mm
  • Weight: 1.72 lbs / 780.0 g