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Silver 3.5 inch bare enterprise hard drive with circuit board visible

Seagate

Seagate ST8000NM001A 8TB 7200 RPM 256MB SAS 3.5" internal hard drive

SKU CH-7JWT-3NNXW MPN ST8000NM001A

Stores 8 TB of enterprise bulk data on a 7200 RPM SAS drive with 256 MB cache

  • Total capacity8 TB
  • Interface typeSAS 12Gb/s
  • Form factor3.5 in (8.89 cm)
  • Packaging typeBare Drive
  • Flash memory typeHard Drive
  • Rotational speed7,200 RPM

Model 8TB Standard Model

  • 8 TB capacity stores massive datasets
  • 7200 RPM spindle delivers fast sequential throughput
  • 256 MB cache absorbs burst I/O workloads
  • SAS 12Gb/s interface enables high-bandwidth connectivity
  • 550 TB annual workload rating supports 24×7 enterprise operation

Capacity & interface

The Seagate Exos 7E8 ST8000NM001A is an 8 TB 3.5" enterprise hard drive that runs at 7200 RPM with a 256 MB cache and a SAS 12Gb/s interface. It is built for 24×7 bulk data workloads in data centre infrastructures.

Who should consider this drive

This drive suits IT professionals and storage architects who need high-capacity, reliable storage for replicated or RAID arrays handling up to 550 TB of writes per year. Buyers who need a desktop-class drive for light client workloads or a different physical form factor should look elsewhere.

Specification that decides fit

The SAS 12Gb/s interface is the single factor that determines compatibility; the drive will only operate in controllers, backplanes or enclosures that support this specific interface.

How it compares

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

Price $185.99
Pricier than about 66% of the 4,938 comparable items (median $107.99).
Total capacity 8 TB
Higher than about 80% of the 2,372 comparable items (median 2 TB).
Price per TB $23.25 per TB
Cheaper than about 91% of the 2,365 comparable items (median $62.21 per TB).

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Specifications

Product
Brand nameSeagate
Product lineExos 7E8
Model nameST8000NM001A
Total capacity8 TB
Recommended useFor Enterprise Storage
Performance
Rotational speed7,200 RPM
Mean latency4.16 ms
Storage
Flash memory typeHard Drive
Cache memory256 MB
Ports & slots
Interface typeSAS 12Gb/s
Size & build
Form factor3.5 in (8.89 cm)
Max height26.1 mm
Maximum width101.85 mm
Maximum length147 mm
Shipping weight0.91 kg
Package size152 × 102 × 51 mm

Other versions of this model

4 more in the same range

Questions about this item

How do I install this 3.5" SAS 12Gb/s drive and what step is often missed?

Mount the 147.00mm long drive in a 3.5" bay, connect the SAS data and power cables, then configure the drive in the RAID or HBA BIOS before the OS sees it.

What maintenance or replacement will this enterprise drive need later?

Rated for 550 TB per year workloads and 2 million hour MTBF; plan replacement when SMART attributes show reallocated sectors or after five years of 24×7 operation.

What limit appears first under sustained use on this 7200 RPM 256MB cache drive?

The 12Gb/s SAS interface and 4.16ms average latency set the sustained throughput ceiling before the 7200 RPM mechanics become the bottleneck.

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