ST20000NM003D Seagate Exos X20 20TB SAS 256 MB 3.5" Server HDD
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ST20000NM003D
Capacity-Optimised 3.5-inch Enterprise SAS HDD for Scale-Out Storage with the ST20000NM003D
The ST20000NM003D is a 20TB 3.5-inch nearline enterprise HDD designed for modern server and storage platforms where CPU- and GPU-driven analytics need predictable bulk capacity behind SAS HBAs and RAID controllers. In density-focused racks, the ST20000NM003D supports tiered architectures that keep high-value PCIe lanes and memory channels available for compute, while delivering consistent sequential throughput for object and file repositories.
Built on CMR recording within the Exos X20 platform, ST20000NM003D integrates into dual-controller shelves and multi-path SAS topologies to improve service continuity during path, expander, or controller events. Advanced Format flexibility (512e/4Kn) simplifies alignment across mixed operating systems and hypervisor stacks, while 7200RPM operation and cache buffering help maintain steady queue handling in large-volume ingest, backup, and rebuild cycles.
Why Choose the ST20000NM003D?
The ST20000NM003D targets the best density-to-operational efficiency profile for nearline tiers where capacity per U and per watt drives architectural decisions. Dual-port SAS enables enterprise multi-pathing for resilient access models, and the ST20000NM003D supports scalable deployment patterns from single RAID groups to high-density JBOD shelves without changing management conventions.
Seagate engineers the Exos family for sustained 24x7 duty cycles, emphasizing controlled vibration behavior, consistent firmware characteristics, and qualification paths aligned to data centre standards. With hardware-based security features, ST20000NM003D fits environments where governance and lifecycle sanitisation are defined as technical requirements, not optional add-ons.
Key Applications:
- Scale-out object storage tiers
- File services and NAS capacity pools
- Backup and archival repositories
- High-density SAS JBOD shelves
- Compliance-focused encrypted storage
At Happyware - Server Hardware you benefit from non-binding offers tailored precisely to your storage shelf or RAID/HBA design and from bulk order discount options when standardising ST20000NM003D across large-capacity deployments.
Technical details of ST20000NM003D
How long is the Warranty and how you can get technical support for ST20000NM003D
| Warranty: | 36 months (part) |
|---|---|
| RMA through customer: | yes |
| RMA Url: | https://www.seagate.com/support/warranty-and-replacements/ |
| Description: | Items must be returned first for RMA. Advanced replacement is not available. No guaranteed delivery times specified. On-site service is not offered as standard. The warranty does not cover data loss. Regular data backups are recommended |
| Support Portal: | https://support.happyware.com |
|---|
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