Seagate Exos 4TB 512e SAS Hard Disk

The Seagate® Exos™ 7E8 enterprise hard drive confidently stores up to 8 TB of data without sacrificing performance. The secure, high-capacity, high-performance drives are optimised for demanding enterprise bulk data applications. 

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. 

Enhanced Reliability, Data Protection, and Security 

Advanced security features help protect data where it lives — on the drive. Exos 7E8 prevents unauthorised drive access and safeguards stored data with security features that include Secure Downloads & Diagnostics, TCG-compliant Self-Encrypting Drive, and government-grade FIPS/Common Criteria tamper-resistant hard drive.2 Seagate Secure™ drives simplify drive repurposing and disposal, help protect data-at-rest, and comply with corporate and federal data security mandates.

Best-Fit Applications

• Hyperscale applications/cloud data centres
• Massive scale-out data centres
• OLTP and HPC applications
• High-capacity density RAID storage
• Mainstream enterprise external storage arrays
• Distributed file systems, including Hadoop and Ceph
• Enterprise backup and restore — D2D, virtual tape
• Centralised surveillance

Specifications

• Capacity : 4 TB
  
• Base Model : ST4000NM005A
• PowerBalance™ Model : —
• Seagate Secure™ SED Model : —
• Seagate Secure SED-FIPS Model : ST4000NM014A

Features : 

• Protection Information (T10 DIF) : Yes
• 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

Reliability/Data Integrity : 

• 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 : —
• Power-On Hours per Year : 8,760
• Bytes per Sector : 512, 520, 528
• Warranty, Limited (years) : 5

Performance : 

• Spindle Speed (RPM) : 7,200
• Interface Access Speed (Gb/s) : 12.0, 6.0, 3.0
• Max. Sustained Transfer Rate OD : 226MB/s
• Average Latency (ms) : 4.16
• Interface Ports : Dual
• Rotational Vibration @ 1,500 Hz (rad/s²) : 12.5

Power Consumption : 

• Idle Power, Average (W) : 5.79
• Typical Operating, Random Read (W) : 11.12
• Power Supply Requirements : +12 V and +5 V'

Environmental : 

• Temperature, Operating (°C) : 5°C - 60°C
• Shock, Operating 2 ms Read/Write (Gs) : 70/40 Gs
• Shock, Non-operating, (1 ms/2 ms) (Gs) : 150/300

Physical : 

• Height (in/mm, max) : 1.028 in/26.1 mm
• Width (in/mm, max) : 4.01 in/101.85 mm
• Depth (in/mm, max) : 5.787 in/147 mm
• Depth (in/mm, max) : 649 g/1.43 lb
• Carton Unit Quantity : 20
• Cartons per Pallet / Cartons per Layer : 40/8