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Silver 3.5 inch SATA hard drive with green circuit board visible on underside

Seagate

Seagate ST2000NM0055 2TB 7200 RPM 128MB SATA 6.0Gb/s 3.5" internal hard drive

SKU CH-9Q67-C4EQ9 MPN ST2000NM0055

A 3.5-inch enterprise hard drive delivering 2 TB of CMR storage at 7200 RPM with a 128 MB cache and SATA 6.0 Gb/s interface

  • InterfaceSATA 6.0Gb/s
  • Capacity2TB
  • NAND Flash Memory TypeSLC
  • RPM7200 RPM
  • Cache128MB
  • Average Latency4.16ms

Options 2TB

  • Enterprise CMR technology maximises storage density per bay
  • Advanced Write Caching boosts random write performance by up to 100%
  • Engineered for 24x7 workloads rated at 550TB per year
  • Dual processors with ramp load and humidity sensor ensure consistent operation
  • On-demand PowerBalance feature optimises power draw in read/write environments

Enterprise 2 TB CMR drive

The Seagate ST2000NM0055 is a 2 TB 3.5-inch hard drive built for enterprise storage arrays. It spins at 7 200 RPM with a 128 MB cache and uses conventional magnetic recording for consistent performance in multi-drive systems. The drive is engineered for 24 x 7 workloads of 550 TB per year.

SATA 6.0 Gb/s host interface

Verify that your server or RAID controller provides a SATA 6.0 Gb/s port and supports 512n, 512e or 4Kn sector formats. The unit fits standard 3.5-inch bays with maximum dimensions of 147.00 mm length, 101.85 mm width and 26.10 mm height. Ensure your backplane supplies the required 12 V and 5 V rails.

24 x 7 thermal design

Dual processors, ramp-load technology and a top-cover-attached motor keep operating temperatures stable in dense chassis. The on-demand PowerBalance feature reduces power draw during random read/write activity. A humidity sensor maintains optimum performance across varying environmental conditions.

Pluspunten

  • Enterprise CMR technology maximises storage density per bay
  • Advanced Write Caching boosts random write performance by up to 100%
  • Engineered for 24x7 workloads rated at 550TB per year
  • Dual processors with ramp load and humidity sensor ensure consistent operation
  • On-demand PowerBalance feature optimises power draw in read/write environments

Specificaties

BrandSeagate
SeriesEnterprise Capacity 3.5
ModelST2000NM0055
InterfaceSATA 6.0Gb/s
Capacity2TB
NAND Flash Memory TypeSLC
RPM7200 RPM
Cache128MB
Average Latency4.16ms
Features1TB to 8TB, 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 integrity for accurate data storage
Industry-leading rotational vibration design he
UsageFor Enterprise Storage
Form Factor3.5"
Height (maximum)26.10mm
Width (maximum)101.85mm
Length (maximum)147.00mm
Verzendgewicht0.72 kg
Pakketafmetingen203 × 163 × 114 mm

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Does the ST2000NM0055 ship with mounting screws, cables or a bracket, or must they be purchased separately?

The drive is supplied as a bare 3.5-inch unit; SATA data and power cables plus any mounting hardware are not included and must be sourced separately.

What distinguishes the 2 TB, 7200 RPM, 128 MB cache model from other capacities in the Enterprise Capacity 3.5 series?

It provides 2 TB of CMR storage with a 128 MB buffer and 7200 RPM spindle speed, matching the series’ 550 TB per year workload rating and Advanced Write Caching for random-write efficiency.

How does the 6.0 Gb/s SATA interface and 4.16 ms latency translate to real-world throughput in a RAID array?

The SATA 6.0 Gb/s link supports the drive’s sustained transfer rates, while 4.16 ms average latency and dual-processor design deliver consistent random I/O performance in multi-drive RAID environments.

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