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Silver 2.5 inch SAS hard drive with black caddy tray attached

DELL

DELL ST2000NX0273 2TB 7200RPM 12Gbps 128MB 2.5" SAS internal hard drive

SKU CH-5B7W-KD00H

A 2 TB 2.5-inch SAS drive spinning at 7200 RPM with 128 MB cache and an included caddy

  • 2 TB capacity stores large datasets
  • 7200 RPM spindle delivers fast sequential access
  • 12 Gbps SAS interface moves data quickly
  • 128 MB cache smooths burst workloads
  • 5 inch form factor fits dense enclosures

2 TB SAS enterprise drive

This 2 TB 2.5-inch SAS hard drive spins at 7200 RPM and connects through a 12 Gbps interface. It ships new with an R-Series caddy for direct installation in compatible Dell bays. The 128 MB cache helps smooth burst workloads in server or storage arrays.

Sustained throughput and cache behaviour

At 7200 RPM the platters deliver consistent sequential bandwidth for streaming writes and reads. The 128 MB buffer absorbs short I/O bursts before flushing to media, keeping latency predictable during extended jobs. The 12 Gbps SAS link prevents the interface from becoming the bottleneck under heavy queue depths.

Thermals noise and power in normal use

The drive weighs 1.0 pound and fits standard 2.5-inch hot-swap trays, so airflow in a populated chassis handles cooling without extra measures. Typical idle and seek acoustics are low enough for rack environments. Power draw scales with the 12 Gbps SAS PHY and 7200 RPM spindle, matching expectations for enterprise 2.5-inch SAS drives.

Points forts

  • 2 TB capacity stores large datasets
  • 7200 RPM spindle delivers fast sequential access
  • 12 Gbps SAS interface moves data quickly
  • 128 MB cache smooths burst workloads
  • 5 inch form factor fits dense enclosures

Caractéristiques

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Questions sur cet article

How much power does the 7200RPM SAS drive draw during all-day operation?

The 2.5" enterprise drive runs at 7200RPM with a 12Gbps SAS interface and 128MB cache; typical power draw for this class is low enough for continuous use in dense arrays.

What controller or backplane must I already have for the 12Gbps SAS interface to work?

You need a SAS controller or backplane that supports 12Gbps SAS signalling and provides 2.5" drive bays; the included R Series caddy fits Dell R-series chassis.

Will the 12Gbps SAS drive negotiate down to 6Gbps on my older HBA?

Yes, the 12Gbps SAS interface is backward compatible and will link at 6Gbps or 3Gbps when connected to an older SAS HBA or expander.

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