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Standard 3.5-inch bare drive with silver aluminium top cover and green circuit board visible underneath

Seagate

Seagate ST3000NM0025 Exos 7E8 3TB 7200 RPM SAS 12Gb/s 128MB Cache 3.5" Internal Hard Drive

SKU CH-T972-FB535 MPN ST3000NM0025

3 TB enterprise SAS hard drive spinning at 7200 RPM with 128 MB cache and 12 Gb/s interface for 24×7 bulk-data workloads

  • PackagingBare Drive
  • InterfaceSAS 12Gb/s
  • Capacity3TB
  • NAND Flash Memory TypeHard Drive
  • RPM7200 RPM
  • Cache128MB

Options 3TB

  • 3TB capacity stores large enterprise datasets
  • 7200 RPM spindle delivers fast sequential throughput
  • 128MB cache accelerates frequent read operations
  • 12Gb/s SAS interface enables high-speed host connectivity
  • 550TB/yr workload rating supports continuous 24x7 operation

Enterprise bulk-data drive

The Seagate Exos 7E8 ST3000NM0025 is a 3TB 3.5-inch internal hard drive built for enterprise storage servers and arrays. It spins at 7200 RPM with a 128MB cache and connects through a SAS 12Gb/s interface using 512n sector formatting. The drive is engineered for continuous 24x7 operation with a 550TB per year workload rating and conventional magnetic recording technology.

Suited for RAID and replicated storage

This drive fits administrators deploying high-capacity nearline storage in multi-drive chassis where consistent performance and dual-processor reliability matter. Advanced write caching and a humidity sensor support dense environments. It is not suited for desktop PCs lacking SAS infrastructure or for systems requiring SATA-only connectivity. The bare-drive packaging also assumes the buyer provides mounting hardware.

Deciding specification: SAS 12Gb/s interface

The single specification that decides compatibility is the SAS 12Gb/s interface. The host controller, backplane and cabling must support this protocol; a SATA-only motherboard or HBA cannot communicate with the drive. Verify the storage server or RAID controller accepts 12Gb/s SAS devices before purchase.

Pontos fortes

  • 3TB capacity stores large enterprise datasets
  • 7200 RPM spindle delivers fast sequential throughput
  • 128MB cache accelerates frequent read operations
  • 12Gb/s SAS interface enables high-speed host connectivity
  • 550TB/yr workload rating supports continuous 24x7 operation

Especificações

BrandSeagate
SeriesExos 7E8
ModelST3000NM0025
PackagingBare Drive
InterfaceSAS 12Gb/s
Capacity3TB
NAND Flash Memory TypeHard Drive
RPM7200 RPM
Cache128MB
Average Latency4.16ms
FeaturesCapacity-Optimized Enterprise Hard Drive for Bulk-Data Applications
- 1TB to 8TB*1, 3.5-inch enterprise drive with industry-leading conventional magnetic recording (CMR) technology
- Advanced Write Caching feature enables up to 100% performance improvement in random writes over last-generation drive
- 12Gb/s SAS and SATA 6Gb/s interfaces in industry-standard formats (512n, 512e and 4Kn) for easy integration into replicated and RAID multi-drive storage servers and systems
- State-of-the-art cache, on-the-fly error-correction algorithms, super parity and end-to-end SAS-based data integ
UsageFor Enterprise Storage
Form Factor3.5"
Height (maximum)26.10mm
Width (maximum)101.85mm
Length (maximum)147.00mm
Peso de envio0.68 kg
Dimensões da embalagem169 × 132 × 39 mm

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Perguntas sobre este artigo

How much power does the 7200 RPM SAS 12Gb/s drive draw during continuous 24x7 operation?

The drive is engineered for 24x7 workloads of 550TB per year and includes an on-demand PowerBalance feature for lower power consumption in random read/write environments.

What host interface and connector does the 3.5-inch 12Gb/s SAS drive require to function?

The drive uses a SAS 12Gb/s interface and is compatible with SATA 6Gb/s interfaces in industry-standard formats for integration into RAID multi-drive storage servers and systems.

Will the 512n sector format Exos 7E8 work in a RAID array with older 512e drives?

The drive supports industry-standard formats including 512n, 512e and 4Kn for easy integration into replicated and RAID multi-drive storage servers and systems.

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