ST4000NM0095 Seagate Exos E 7E8 4TB SAS 128 MB 3.5" Server HDD

High-Performance 3.5in Enterprise SAS Nearline HDD featuring 4Kn CMR endurance with the ST4000NM0095

The ST4000NM0095 is a 4TB 3.5in internal enterprise HDD engineered for SAS server and storage platforms where CPU and GPU resources are shared across dense compute nodes and capacity tiers must remain predictable under sustained I/O. In mixed CPU virtualization clusters and AI/HPC pre-processing environments, the ST4000NM0095 supports consistent streaming throughput for logs, datasets, and backup targets while keeping hot data on flash.

Designed for SAS backplanes and RAID/JBOD enclosures, the ST4000NM0095 integrates cleanly into PCIe-based host architectures via SAS HBAs and expander topologies, enabling scalable shelf expansion without redesigning the compute layer. Its 4Kn sector format aligns with modern file systems and array controllers, while CMR recording avoids the write-amplification and rebuild unpredictability that can impact parity arrays. A 7200 RPM spindle and 128MB cache provide stable latency characteristics for nearline tiers and bulk capacity pools operating 24x7.

Why Choose the ST4000NM0095?

The ST4000NM0095 delivers a practical density-to-performance balance for enterprise SAS deployments that prioritize deterministic behavior during RAID rebuilds, capacity expansions, and archival ingest. With a 24x7 duty profile and 2.0M hours MTBF, the ST4000NM0095 is suited to scale-out storage shelves where reliability and predictable service windows drive operational efficiency.

Seagate designs Exos-class drives with an engineering focus on sustained data center workloads, robust qualification for array environments, and alignment with modern operational standards for continuous monitoring. Integrated sensing, including a humidity sensor, supports stable operation across variable rack conditions and contributes to long-term fleet consistency.

Key Applications:

• Data center nearline storage
• SAS JBOD and RAID capacity expansion
• Backup repositories and archival tiers
• Server and array bulk capacity pools

At Happyware - Server Hardware you benefit from non-binding offers tailored to your ST4000NM0095 deployment plan and bulk order discount options that support consistent drive populations across RAID groups and storage shelves.