Твърд диск 6TB Seagate Server Exos 7E8 (ST6000NM021A), SATA 6Gb/s, 7200 rpm, 256MB, 3.5" (8.89cm)

SEAGATE Server Exos 7E8
ST6000NM021A

Enterprise Drive for Bulk Data Applications
Exos 7E8 hard drives support up to 8 TB per drive,
1 offering bulk data storage for data centre
infrastructures requiring a highly reliable enterprise hard drive. Exos 7E8 provides costeffective, reliable access to unstructured data. Built on field-proven 10th-generation conventional
magnetic recording (CMR) technology, the Exos 7E8 drive helps to catalyse the datasphere,
enabling data centre architects and IT professionals to deliver trusted performance, rock-solid
reliability, ironclad security, and low TCO for demanding 24×7 operations.

Robust Bulk Data Storage for a 24×7 World
Exos 7E8 drives are backed by a 2 million hour MTBF rating and support workloads of 550 TB
per year — 10× that of desktop hard drives. With state-of-the-art cache, on-the-fly errorcorrection algorithms, and rotational vibration design, the Exos 7E8 helps ensure consistent
performance in replicated and RAID multi-drive systems.

High Performance for Mainstream Data Centre Applications
Meet your storage workload requirements in the most efficient and cost-effective data centre
footprint on the market today. The Exos 7E8 delivers easy integration into bulk storage systems
with 12 Gb/s SAS and SATA 6 Gb/s interface options. With user-definable innovative technology
advancements like PowerChoice™ and Seagate RAID Rebuild
®, you can tailor your nearline
storage requirements for even greater improvements in lowering your TCO.

Capacity 6TB
Humidity Sensor Yes
SuperParity Yes
Low Halogen Yes
PowerChoice™ Technology Yes
PowerBalance Technology Yes
Cache, Multi-segmented (MB) 256
Advanced Write Caching (2M internal NOR flash) Yes
Vibration, Non-operating: 10 Hz to 500 Hz (Grms) 5
Mean Time Between Failures (MTBF, hours) 2,000,000
Reliability Rating @ Full 24×7 Operation (AFR) 0.44%
Non-recoverable Read Errors per Bits Read, Max 1 sector per 10E15
Power-On Hours per Year 8,760
Bytes per Sector 512
Spindle Speed (RPM) 7,200
Interface Access Speed (Gb/s) 6.0, 3.0, 1.5
Max. Sustained Transfer Rate OD 226MB/s
Average Latency (ms) 4.16
Interface Ports Single
Rotational Vibration @ 1,500 Hz (rad/s²) 12.5


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