ST12000NM002G Seagate Exos X16 12TB SAS 256 MB 3.5" Server HDD

High-Density 3.5in Enterprise SAS HDD for 24/7 Nearline Storage with the ST12000NM002G

The ST12000NM002G is a 12TB 3.5in nearline HDD engineered for enterprise servers and storage platforms that prioritise predictable bulk capacity over flash-tier latency. In RAID shelves and hot-swap drive bays, its 12Gb/s dual-port SAS design provides path redundancy and stable connectivity for multipath controllers, enabling resilient service profiles in SAN/NAS arrays and scale-out storage nodes.

ST12000NM002G supports 4Kn native and 512e emulation to align logical sector formats with modern filesystems, hypervisors, and legacy compatibility requirements without forcing a single deployment model. Integrity features such as T10 DIF/Protection Information (PI) and Super Parity help protect data end-to-end across controllers, expanders, and backplanes, while a helium-sealed mechanical design and adaptive power management are optimised for dense chassis thermals and continuous duty cycles.

Why Choose the ST12000NM002G?

ST12000NM002G delivers an efficient density-to-slot ratio for capacity tiers where scaling is driven by bays, power envelopes, and rebuild predictability. Dual-port SAS supports enterprise high availability designs, and the platform reliability profile with 24/7 ratings and 2.5M hours MTBF aligns with operational requirements for large RAID groups, pooled storage, and backup repositories that must remain online during maintenance and path events.

Seagate designs the Exos family with a focus on datacentre-standard interoperability, consistent firmware behaviour in multi-drive environments, and reliability mechanisms suitable for continuous rotational workloads. This engineering approach supports repeatable qualification across servers, JBOD enclosures, and storage arrays while meeting enterprise expectations for lifecycle management.

Key Applications:

• SAN/NAS capacity tiers and RAID arrays
• Hot-swap server drive bays and JBOD shelves
• Backup repositories and nearline archives
• Bulk capacity pools for virtualisation storage

At Happyware - Server Hardware you benefit from non-binding offers tailored to your deployment plan for ST12000NM002G rollouts, and can secure a bulk order discount for consistent, large-scale expansions across racks and storage shelves.