SEAGATE EXOS 7E8 HDD 4KN 8TB/SAS/7200RPM/256MB/3.5" (ST8000NM018B)
Category: SEAGATE HDD
Specifications
SKU
ST8000NM018B
Details
The Exos 7E8 series is built for enterprise bulk data applications, including hyperscale, cloud, and RAID storage solutions. It offers up to 8TB capacity per drive, using robust CMR technology to deliver high reliability and consistent performance even in multi‑drive RAID or replicated environments. Designed for continuous 24×7 operation, the drive supports workloads of up to 550TB per year and features a 2 million hour MTBF, ensuring minimal downtime for mission‑critical systems.
| Maximum Capacity | 8TB per drive |
| Recording Technology | Conventional Magnetic Recording (CMR) |
| Intended Workloads | Hyperscale, cloud storage, RAID, enterprise bulk data |
| Operating Mode | 24×7 continuous operation |
| Workload Rating | Up to 550TB/year (≈10× desktop drives) |
| MTBF | 2,000,000 hours |
| Spindle Speed | 7200 RPM |
| Cache / Buffer | 256MB multi‑segmented cache |
| Interface | SAS 12Gb/s (backward compatible with 6Gb/s and 3Gb/s) |
| Interface Ports | Dual SAS ports for high availability and failover |
| Max Sustained Transfer Rate | ~226 – 249 MB/s (interface dependent) |
| Average Latency | 4.16 ms |
| Rotational Vibration Tolerance | 12.5 rad/s² @ 1500Hz |
| Annualized Failure Rate (AFR) | 0.44% (24×7 operation) |
| Nonrecoverable Read Errors | 1 sector per 10¹⁵ bits read |
| Power‑On Hours | Rated for 8,760 hours/year |
| Shock Resistance (Operating) | 70G (read/write) |
| Shock Resistance (Non‑Operating) | 150G / 250G |
| Data Integrity Features | SuperParity, advanced error correction |
| Environmental Protection | Integrated humidity sensor |
| Multi‑Drive Stability | Rotational vibration immunity |
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