ST14000NM000J Seagate Exos X18 14TB SATA 256 MB 3.5" Server HDD

High-Capacity 3.5-inch Enterprise SATA HDD featuring CMR scale-out storage with the ST14000NM000J

The ST14000NM000J is a 14TB Seagate Exos X18 3.5-inch enterprise HDD engineered for dense SATA capacity tiers in modern server and JBOD architectures. In CPU-centric storage nodes, it complements current Xeon and EPYC platforms by providing predictable sequential throughput and consistent latency behavior under sustained workloads, while reserving PCIe lanes and expansion budget for NVMe cache, 25/100GbE networking, or HBA connectivity.

Designed for mixed I/O profiles common to scale-out and backup clusters, the ST14000NM000J uses CMR recording to maintain stable write performance compared with shingled approaches, making it suitable for RAID, erasure coding, and distributed file systems. Its 7200RPM mechanism and 256MB cache support efficient read-ahead and streaming operations, while Advanced Format flexibility (512e and 4Kn) helps align sector format choices with OS, hypervisor, or object storage requirements for optimal metadata and rebuild behavior.

Why Choose the ST14000NM000J?

The ST14000NM000J delivers a practical density-to-performance profile for enterprises building high-capacity pools with predictable rebuild and scrub characteristics. With a 2.5 million hour MTBF rating and platform-dependent hot-plug support, it fits deployment models that prioritize uptime, serviceability, and straightforward scaling by adding drives per node or per enclosure without redesigning the compute layer.

Seagate designs the Exos family around data center duty cycles, emphasizing reliability engineering, controlled power behavior, and compatibility with standard 3.5-inch bays and SATA backplanes. This approach supports consistent fleet operations across heterogeneous racks and aligns with common monitoring and lifecycle practices in enterprise storage environments.

Key Applications:

• Scale-out storage tiers for servers and JBOD enclosures
• Backup and archive repositories
• General-purpose server bulk storage
• RAID arrays and erasure-coded clusters

At Happyware - Server Hardware you benefit from non-binding offers tailored to your storage rollout, helping you standardize on the ST14000NM000J across nodes and enclosures with the right quantities and lead times, and you can secure an extended warranty up to 6 years for additional operational assurance.