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Silver 3.5-inch SAS hard drive bare unit, model ST31000424SS

Seagate

Seagate Constellation ES ST31000424SS 1TB 7200 RPM 16MB SAS 6Gb/s 3.5" internal hard drive

SKU CH-7W3F-2QW9N MPN ST31000424SS

A 1 TB enterprise-class SAS drive spinning at 7200 RPM with 16 MB cache, built for 24/7 server workloads and rated at 1.2 million hours MTBF

  • Total capacity1 TB
  • Interface typeSAS 6Gb/s
  • Form factor3.5 in (8.89 cm)
  • Packaging typeBare Drive
  • Rotational speed7,200 RPM
  • Cache memory16 MB
  • 1TB capacity for enterprise storage
  • 7200 RPM spindle speed delivers consistent throughput
  • SAS 6Gb/s interface supports dual-port reliability
  • 2 million hour MTBF rating for 24/7 operation
  • DoD 5220.22-M compliant erasure ensures data sanitisation

Server Storage Drive

This Seagate Constellation ES drive delivers 1TB of capacity over a SAS 6Gb/s interface. It spins at 7200 RPM with a 16MB cache in a 3.5-inch form factor. The model ST31000424SS is built for enterprise environments requiring consistent throughput and vibration tolerance. It arrives as a bare drive with no manufacturer warranty remaining.

Enterprise Array Fit

Suits administrators expanding or repairing SAS-based storage arrays and nearline server tiers. The 1.2 million hour MTBF rating and PowerChoice technology support 24/7 operation with managed power draw. Buyers needing a desktop boot drive or a consumer-grade interface should look elsewhere. This unit is sold new but the series is end-of-sale, so long-term spares planning is required.

SAS Interface Decides

The single specification that determines compatibility is the SAS 6Gb/s interface. Your backplane, HBA or RAID controller must support this protocol; a standard desktop motherboard header will not work. Drives are erased to DoD 5220.22 M standard and health is verified at no lower than 90 percent.

How it compares

Measured against everything we stock in 3.5-Inch Internal Desktop HDDs, at today’s prices. Recalculated every night.

Price $122.99
Typical for this category: the median of 4,938 items is $107.99.
Total capacity 1 TB
Lower than about 60% of the 2,372 comparable items (median 2 TB).
Price per TB $122.99 per TB
Pricier than about 68% of the 2,365 comparable items (median $62.21 per TB).

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Specifications

Product
Brand nameSeagate
Product lineConstellation ES
Model nameST31000424SS
Total capacity1 TB
Recommended useIdeal for Servers
Performance
Rotational speed7,200 RPM
Mean latency6Gb/s
Storage
Cache memory16 MB
Ports & slots
Interface typeSAS 6Gb/s
Size & build
Form factor3.5 in (8.89 cm)
Shipping weight1.36 kg
Package size305 × 229 × 110 mm

Questions about this item

How can I verify the ST31000424SS is operating correctly after installation?

Check SMART data for reallocated sectors and run a full surface scan; the drive health should read at least 90 % and show no pending errors.

What comes with the bare drive and what must I source separately?

Only the 3.5-inch SAS drive is included; you will need a SAS 6Gb/s controller or backplane, mounting screws, and power and data cables.

Which capacity version of the Constellation ES should I choose for a server array?

This model provides 1 TB at 7200 RPM with 16 MB cache; select it when you need that exact capacity and the 1.2 million hour MTBF rating.

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