ST10000NM018G Seagate Exos X18 10TB SATA 256 MB 3.5" Server HDD

High-Density 3.5in Enterprise SATA HDD architecture for nearline repositories with the ST10000NM018G

The ST10000NM018G is a 10TB 3.5in enterprise HDD engineered for capacity-optimised server platforms where SATA connectivity, predictable latency, and fleet-level reliability are required. In storage nodes backed by modern CPU generations and high-memory configurations, the ST10000NM018G complements large RAM page cache and software-defined storage tiers by delivering consistent sequential throughput for bulk data while reserving PCIe lanes for NVMe tiers and network expansion.

Designed for dense JBODs and high-bay arrays, the ST10000NM018G leverages CMR recording to maintain stable write behaviour under sustained ingestion and rebuild activity, reducing variability compared to shingled approaches. Advanced Format support for 512e and 4Kn allows alignment with hypervisor and filesystem sector strategies, while hot-plug capability supports serviceability in redundant chassis. Helium-sealed mechanics and PowerChoice/PowerBalance improve efficiency targets in rack-scale deployments where power envelopes and acoustics must be controlled without compromising duty-cycle requirements.

Why Choose the ST10000NM018G?

The ST10000NM018G provides a pragmatic density-to-performance profile for nearline tiers, enabling high-capacity pools with standard SATA backplanes and minimal platform complexity. With 2.5M hours MTBF and enterprise workload engineering, the ST10000NM018G scales cleanly across multi-drive arrays and is well-suited to predictable operations in backup targets, object stores, and archive nodes where cost-effective capacity and operational resilience drive architecture decisions.

Seagate designs the Exos family around continuous operation, controlled vibration characteristics, and data-centre integration requirements. The ST10000NM018G reflects this engineering focus through helium sealing, power-management features, and firmware optimised for multi-drive environments, supporting modern infrastructure standards for availability, maintainability, and long service life.

Key Applications:

• Nearline data repositories
• Backup and recovery targets
• Archive and compliance storage
• High-density SATA HDD arrays
• Object storage nodes

At Happyware - Server Hardware you benefit from non-binding offers tailored to your ST10000NM018G deployment plan and an extended warranty of up to 6 years to secure long-term operation in enterprise storage fleets.