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Silver 3.5 inch enterprise hard drive bare drive with circuit board visible

Seagate

Seagate Constellation ES.3 ST1000NM0023 1TB 7200 RPM 128MB SAS 6Gb/s 3.5" internal hard drive

SKU CH-NQGC-6R5NX MPN ST1000NM0023

A 1TB enterprise SAS drive spinning at 7200 RPM with 128MB cache for 24x7 bulk-data storage

  • Total capacity1 TB
  • Interface typeSAS 6Gb/s
  • Form factor3.5 in (8.89 cm)
  • Packaging typeBare Drive
  • Rotational speed7,200 RPM
  • Cache memory128 MB

Capacity 1TB

  • Enterprise-grade 24x7 bulk-data reliability
  • Predictable 7200 RPM performance on SAS 6Gb/s
  • Best-in-class energy efficiency for data centres
  • 128 MB cache with 4.16 ms average latency
  • DoD 5220.22-M compliant erasure on 90 % health drives

Enterprise Storage Drive

The Seagate Constellation ES.3 ST1000NM0023 is a 1TB 3.5 inch enterprise hard drive built for continuous 24x7 bulk data workloads. It spins at 7200 RPM with a 128MB cache and connects through a SAS 6Gb/s interface. The bare drive measures 147.00mm long, 101.85mm wide and 26.10mm high with an average latency of 4.16ms.

Compatibility Check

Your system must provide a SAS controller or backplane because this drive will not operate on a standard desktop SATA-only motherboard. Verify that your chassis accepts a 3.5 inch form factor with the stated maximum dimensions. Ensure your power supply delivers the correct connectors for SAS power and that your RAID or HBA firmware supports the drive.

Target Users

This drive suits IT administrators expanding enterprise storage arrays, backup repositories or surveillance servers that demand predictable 7200 RPM performance in a SAS environment. It is not suitable for builders who need a desktop boot drive, users without SAS infrastructure or anyone requiring consumer SATA connectivity.

How it compares

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

Price $76.99
Cheaper than about 60% of the 4,938 comparable items (median $107.99).
Total capacity 1 TB
Lower than about 60% of the 2,372 comparable items (median 2 TB).
Price per TB $76.99 per TB
Pricier than about 56% of the 2,365 comparable items (median $62.21 per TB).

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Specifications

Product
Brand nameSeagate
Product lineConstellation ES.3
Model nameST1000NM0023
Total capacity1 TB
Recommended useFor Enterprise Storage
Performance
Rotational speed7,200 RPM
Mean latency4.16 ms
Storage
Cache memory128 MB
Ports & slots
Interface typeSAS 6Gb/s
Size & build
Form factor3.5 in (8.89 cm)
Max height26.1 mm
Maximum width101.85 mm
Maximum length147 mm
Shipping weight0.63 kg
Package size146 × 102 × 25 mm

Other versions of this model

3 more in the same range

Questions about this item

Does the bare drive include cables or a mounting bracket, or must they be purchased separately?

The drive is supplied as a bare unit only; SAS data and power cables plus any 3.5" mounting hardware must be sourced separately.

Should I choose the SAS 6Gb/s version or a SATA model for a server that only has SAS backplanes?

Select this SAS 6Gb/s model; it connects directly to SAS backplanes without an interposer, whereas a SATA drive would need one.

What does the 7200 RPM rating mean for sustained throughput in a RAID array?

The 7200 RPM spindle delivers predictable performance with 4.16 ms average latency, suited to 24x7 bulk-data workloads in RAID.

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