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Silver rectangular 3.5 inch bare hard drive with circuit board visible on underside

Seagate

Seagate ST8000NM0065 8TB 3.5" 7200 RPM SAS 12Gb/s 256MB Cache 4Kn Internal Hard Drive

SKU CH-7MYE-JP5AT MPN ST8000NM0065

8TB 3.5-inch enterprise SAS drive at 7200 RPM with 256MB cache and 4Kn format for 24×7 bulk-data workloads

  • PackagingBare Drive
  • InterfaceSAS 12Gb/s
  • Capacity8TB
  • RPM7200 RPM
  • Cache256MB
  • Average Latency4.16ms

Options 8TB

  • 8TB capacity with industry-leading 6-disk design delivers 33% more storage per slot
  • 7200 RPM and 256MB cache provide low 4.16ms latency for fast data access
  • SAS 12Gb/s interface enables 12Gb/s transfer speeds for enterprise storage systems
  • Engineered for 24×7 operation with 550TB/yr workload rating — 10× desktop drives
  • Advanced Write Caching and rotational vibration tolerance ensure consistent performance in dense multi-drive arrays

Enterprise 8TB SAS Drive

The Seagate ST8000NM0065 is an 8TB 3.5-inch enterprise hard drive built for bulk-data workloads. It spins at 7200 RPM with a 256MB cache and uses a SAS 12Gb/s interface. The drive employs conventional magnetic recording across six disks to fit more capacity into a standard drive bay. It is engineered for continuous 24×7 operation with a 550TB per year workload rating.

Installation and Common Issues

The drive fits a standard 3.5-inch bay measuring 147mm long, 101.85mm wide and 26.10mm high. It connects via a SAS 12Gb/s backplane or controller; the interface also supports SATA 6Gb/s signalling for compatible systems. The 4Kn sector format requires an operating system and controller that support 4K native addressing. Firmware mismatches between the drive and the RAID controller are the most frequent cause of detection failures.

Who This Suits and Who Should Look Elsewhere

This drive suits storage arrays, backup targets and nearline archives that need high capacity with consistent multi-drive performance. It is not suited for boot drives or low-latency transactional workloads that demand solid-state response times. Buyers without SAS infrastructure or 4Kn-aware controllers should look at drives with 512e formatting or SATA-only interfaces. Systems limited to 512-byte sector addressing cannot use this model.

I korthet

  • 8TB capacity with industry-leading 6-disk design delivers 33% more storage per slot
  • 7200 RPM and 256MB cache provide low 4.16ms latency for fast data access
  • SAS 12Gb/s interface enables 12Gb/s transfer speeds for enterprise storage systems
  • Engineered for 24×7 operation with 550TB/yr workload rating — 10× desktop drives
  • Advanced Write Caching and rotational vibration tolerance ensure consistent performance in dense multi-drive arrays

Specifikationer

BrandSeagate
SeriesEnterprise Capacity 3.5
ModelST8000NM0065
PackagingBare Drive
InterfaceSAS 12Gb/s
Capacity8TB
RPM7200 RPM
Cache256MB
Average Latency4.16ms
FeaturesCapacity-Optimized Enterprise Hard Drive for Bulk-Data Applications
- 8TB, 3.5-inch enterprise drive with industry-leading 6-disk technology, resulting in 33% more storage in the same storage slot
- Advanced Write Caching feature to utilize enhanced algorithms, resulting in the industry's highest nearline storage workload performance efficiencies - 100% performance improvement in random writes over last-generation drive
- Widely accepted, proven ninth-generation conventional perpendicular recording technology for reliable access to unstructured data in bulk storage applications
- 12G
UsageFor Enterprise Storage
Form Factor3.5"
Height (maximum)26.10mm
Width (maximum)101.85mm
Length (maximum)147.00mm
Fraktvikt1.03 kg
Paketstorlek152 × 102 × 25 mm

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How can I confirm the ST8000NM0065 is performing correctly after installation?

The drive should report 8TB capacity and a 7200 RPM spindle speed in your RAID controller or OS utilities. Expect an average latency near 4.16ms and sustained throughput up to the SAS 12Gb/s link rate. SMART attributes will show zero reallocated sectors on a healthy new unit.

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

The package contains only the 3.5-inch drive itself. You must supply a SAS 12Gb/s backplane or HBA, power and data cables, mounting screws or a drive tray, and a server or storage chassis with adequate cooling for 24×7 operation.

When should I choose the 4Kn 8TB model over other format options?

Select this 4Kn version when your controller, OS and filesystem all support 4K native sectors. It avoids 512e emulation overhead and matches the drive's physical 4K sector layout for optimal efficiency in bulk-data and RAID workloads.

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