ST20000NM002D Seagate Exos X20 20TB SAS 256 MB 3.5" Server HDD

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Product line:

Exos

See all Enterprise SAS HDDs

See other Seagate products

€762.60

In stock

Happyware Article Number:

SH2H6279-398919

Manufacturer Number:

ST20000NM002D

Brand:

Seagate

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Description Technical details Warranty & Technical Support Reviews Bulk Deals

ST20000NM002D

High-Density 3.5" Enterprise SAS Nearline HDD for scale-out capacity tiers with the ST20000NM002D

The ST20000NM002D is a 20TB 3.5" Seagate Exos X20 nearline HDD engineered for capacity-centric server and storage platforms where CPU and memory resources are optimized for throughput rather than compute. In SAS JBODs, RAID shelves, and object storage nodes, the ST20000NM002D integrates cleanly into host bus adapter and expander topologies, enabling predictable service behavior under mixed read/write streams.

With dual-port SAS and 7200RPM CMR recording, the ST20000NM002D supports enterprise backplanes designed for hot-plug maintenance and multipath resiliency. Advanced Format options (512e and 4Kn) allow alignment with modern file systems and RAID stripe geometry, while on-drive caching supports burst absorption during ingest and rebuild activity. PowerChoice and PowerBalance features help keep rack-level power envelopes stable in dense enclosures without compromising sustained nearline performance.

Why Choose the ST20000NM002D?

The ST20000NM002D provides a practical density-to-throughput profile for bulk capacity tiers that must scale horizontally across bays and shelves. Dual-port SAS improves path availability in redundant controller designs, PI support strengthens end-to-end data integrity, and 2.5M hours MTBF targets continuous 24x7 datacentre duty cycles, making ST20000NM002D a strong fit for growth-oriented storage pools and predictable lifecycle planning.

Seagate designs the Exos platform around measurable reliability, serviceability, and enclosure compatibility for enterprise environments. Helium sealing, environmental sensing, and power-management controls are engineered to support consistent thermals and operational stability, aligning with modern data centre standards for high-density storage deployments.

Key Applications:

SAS JBOD and RAID expansion shelves
Object storage and scale-out capacity nodes
Backup repositories and archive tiers
Bulk data lakes and log retention

At Happyware - Server Hardware you benefit from non-binding offers tailored to your capacity and shelf design requirements for ST20000NM002D deployments, and you can secure predictable project economics through a Bulk Order Discount for large rollouts.

Technical details of ST20000NM002D

Capacity:

20TB

Operating Temperature:

5 60

Form Factor:

3.5"

Interface Speed:

SAS

Rotations:

7200RPM

Cache:

256 MB

How long is the Warranty and how you can get technical support for ST20000NM002D

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