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Silver 3.5 inch bare enterprise hard drive with exposed circuit board

Seagate

Seagate ST2000NM004A 2TB 7200RPM 256MB SAS 3.5" internal hard drive

SKU CH-4268-HS1SB MPN ST2000NM004A

A 2 TB 3.5" enterprise hard drive with 7200 RPM, 256 MB cache and SAS 12Gb/s interface for 24×7 bulk data storage

  • PackagingBare Drive
  • InterfaceSAS 12Gb/s
  • Capacity2TB
  • NAND Flash Memory TypeHard Drive
  • RPM7200 RPM
  • Cache256MB

Options 2TB Standard Model

  • Enterprise-grade reliability for 24×7 workloads with 2M-hour MTBF
  • High-capacity bulk storage up to 2TB on 10th-gen CMR technology
  • Consistent RAID performance from 256MB cache and rotational vibration design
  • Fast 12Gb/s SAS interface for demanding enterprise data centres
  • Low latency 7200RPM operation with 4.16ms average access time

2 TB SAS enterprise drive

The Seagate Exos 7E8 ST2000NM004A is a 3.5-inch internal hard drive built for enterprise storage systems. It delivers 2 TB of capacity on a SAS 12Gb/s interface with a 7200 RPM spindle and 256 MB cache. The drive uses conventional magnetic recording technology rated for 24×7 operation in data centre environments.

Suited for bulk data arrays; not for desktop boot

This drive fits RAID and replicated multi-drive deployments that demand sustained write throughput and rotational vibration tolerance. It is not intended for single-drive desktop boot use, nor for workloads that exceed the 550 TB per year rating. Buyers needing higher single-drive capacity should consider larger models in the same series.

2 TB capacity with 550 TB annual workload

The 2 TB volume handles bulk archives, backups and unstructured data sets in always-on arrays. Headroom is defined by the 550 TB yearly workload limit and 2 million hour MTBF rating. Beyond that threshold, sustained heavy write patterns will exceed the design envelope and require additional drives.

Privalumai

  • Enterprise-grade reliability for 24×7 workloads with 2M-hour MTBF
  • High-capacity bulk storage up to 2TB on 10th-gen CMR technology
  • Consistent RAID performance from 256MB cache and rotational vibration design
  • Fast 12Gb/s SAS interface for demanding enterprise data centres
  • Low latency 7200RPM operation with 4.16ms average access time

Specifikacijos

BrandSeagate
SeriesExos 7E8
ModelST2000NM004A
PackagingBare Drive
InterfaceSAS 12Gb/s
Capacity2TB
NAND Flash Memory TypeHard Drive
RPM7200 RPM
Cache256MB
Average Latency4.16ms
FeaturesEnterprise Drive for Bulk Data Applications
Exos 7E8 hard drives support up to 8TB per drive, offering bulk data storage for data center infrastructures requiring a highly reliable enterprise hard drive. Exos 7E8 provides cost-effective, reliable access to unstructured data. Built on field-proven 10th-generation conventional magnetic recording (CMR) technology, the Exos 7E8 drive helps to catalyze the datasphere, enabling data center architects and IT professionals to deliver trusted performance, rock-solid reliability, ironclad security, and low TCO for demanding 24x7 operations.
Ro
UsageFor Enterprise Storage
Form Factor3.5"
Height (maximum)26.10mm
Width (maximum)101.85mm
Length (maximum)147.00mm
Siuntos svoris0.91 kg
Pakuotės dydis457 × 406 × 356 mm

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Will my server backplane need a SAS 12Gb/s controller for this 2TB drive to operate?

Yes, the drive uses a SAS 12Gb/s interface, so the host controller or backplane must support that speed for full operation.

Does the 256MB cache and 4.16ms latency help maintain steady throughput when paired with earlier 7200 RPM drives in a RAID set?

The 256MB cache and 4.16ms average latency are designed for consistent performance in multi-drive RAID environments alongside similar enterprise drives.

How can I confirm the drive is running at 7200 RPM with the full 256MB cache after installation?

Check the SMART data or controller BIOS for the reported rotational speed of 7200 RPM and cache size of 256MB to verify correct operation.

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