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Silver 3.5-inch enterprise hard drive with SAS connector and label showing 8TB capacity

Seagate

Seagate Exos 7E10 ST8000NM018B 8TB 7200 RPM 256MB SAS 12Gb/s 3.5" internal hard drive

SKU CH-8CH1-GT995 MPN ST8000NM018B

An 8TB enterprise hard drive with 7200 RPM, 256MB cache and SAS 12Gb/s interface for 24x7 bulk data storage

  • InterfaceSAS 12Gb/s
  • Capacity8TB
  • NAND Flash Memory TypeHard Drive
  • RPM7200 RPM
  • Cache256MB
  • Average Latency4.16ms
  • 8TB capacity supports massive bulk-data workloads
  • 7200 RPM spindle speed delivers high-throughput performance
  • 256MB cache accelerates frequent data access
  • SAS 12Gb/s interface enables fast enterprise connectivity
  • 550TB yearly workload rating sustains 24×7 operation

Enterprise 8TB SAS drive

The Seagate Exos 7E10 ST8000NM018B is an 8TB 3.5-inch internal hard drive built for enterprise bulk-data workloads. It spins at 7200 RPM with a 256MB cache and connects via a SAS 12Gb/s interface. The drive is rated for 550TB of data written per year and a 2 million hour MTBF.

Suited for 24x7 arrays, not desktop PCs

This drive targets data-centre architects and IT teams running replicated or RAID storage that operates around the clock. It is not intended for single-drive desktop use, gaming rigs, or systems that lack a SAS controller and backplane.

Verify SAS controller and bay clearance

Confirm your host bus adapter or RAID card supports SAS 12Gb/s and the 512e/4Kn sector format. Ensure the 3.5-inch bay accommodates the 26.11mm height, 101.85mm width and 147.00mm length. Check that your firmware and cabling match the SAS specification.

Highlights

  • 8TB capacity supports massive bulk-data workloads
  • 7200 RPM spindle speed delivers high-throughput performance
  • 256MB cache accelerates frequent data access
  • SAS 12Gb/s interface enables fast enterprise connectivity
  • 550TB yearly workload rating sustains 24×7 operation

Specifications

BrandSeagate
SeriesExos 7E10
ModelST8000NM018B
InterfaceSAS 12Gb/s
Capacity8TB
NAND Flash Memory TypeHard Drive
RPM7200 RPM
Cache256MB
Average Latency4.16ms
FeaturesEnterprise Drive for Bulk Data Applications
Robust Bulk Data Storage for a 24x7 World
High Performance for Mainstream Data Centre Applications
Enhanced Reliability, Data Protection, and Security
Best-Fit Applications:
Hyperscale applications/cloud data centres
Massive scale-out data centres
OLTP and HPC applications
High-capacity density RAID storage
Mainstream enterprise external storage arrays
Distributed file systems, including Hadoop and Ceph
Enterprise backup and restore - D2D, virtual tape
Centralised surveillance
UsageFor Enterprise Storage
Form Factor3.5"
Height (maximum)26.11mm
Width (maximum)101.85mm
Length (maximum)147.00mm
Shipping weight0.91 kg
Package size196 × 152 × 51 mm

Questions about this item

What controller or backplane do I need to connect the SAS 12Gb/s interface on this ST8000NM018B?

You need a SAS 12Gb/s HBA, RAID controller or backplane with compatible SAS ports and cables.

Will the 512e/4KN sector format on this 8TB drive work with my older RAID controller that only supports 512n?

The drive uses 512e/4KN formatting; compatibility depends on whether your controller explicitly supports 512e or 4KN logical sectors.

How can I confirm the 7200 RPM spindle speed and 256MB cache are active after installation?

Check the drive's reported RPM and cache size in your OS disk utility or controller BIOS; they should show 7200 RPM and 256MB.

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