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A 2.5 inch SAS hard drive mounted in a black plastic tray with metal connector end

DELL

DELL ST91000642SS 1TB 7.2KRPM 6Gbps 2.5" SAS internal hard drive with tray

SKU CH-PW0K-C7YNK

A 1 TB, 7200 RPM SAS hard drive in a 2.5 inch form factor with 64 MB cache and included tray

  • 1 TB capacity for high-density storage
  • 7 200 RPM spindle for responsive data access
  • SAS 6 Gb/s interface for reliable server connectivity
  • 64 MB cache to smooth burst workloads
  • Includes R-series tray for direct 2.5″ bay installation

Enterprise 2.5-inch SAS drive

This 2.5-inch SAS hard drive delivers 1000GB of storage in a compact form factor designed for enterprise servers and storage arrays. The included R-series tray ensures direct compatibility with Dell drive bays. It suits IT teams needing reliable nearline capacity for mixed workloads.

6Gbps SAS interface limits

The 6Gbps SAS link caps sustained throughput well below the peak bandwidth of modern solid-state drives. Mechanical latency at 7200RPM adds access delay that limits random I/O performance compared to flash media. Controllers must support SAS 2.0 or later to negotiate the full link speed.

1TB capacity with 64MB cache

The 64MB buffer absorbs burst write traffic and smooths sequential reads for typical nearline duties such as logging, archiving and backup staging. Heavy random workloads or multi-tenant databases will exhaust the mechanical IOPS headroom before the capacity fills.

Points forts

  • 1 TB capacity for high-density storage
  • 7 200 RPM spindle for responsive data access
  • SAS 6 Gb/s interface for reliable server connectivity
  • 64 MB cache to smooth burst workloads
  • Includes R-series tray for direct 2.5″ bay installation

Caractéristiques

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Questions sur cet article

Should I pick the 1000GB version or a different capacity for this Dell ST91000642SS?

This model is offered in a single 1000GB capacity, so there is no alternative size to choose from for this part number.

What does the 7200RPM rating mean for everyday performance in a desktop?

The 7200RPM spindle speed provides faster data access and sustained transfer rates than slower drives, improving OS responsiveness and file throughput.

How does the SAS 6Gb/s interface affect real-world speed limits?

The SAS 6Gb/s link caps the maximum interface throughput at 6 gigabits per second, which the drive's 64MB cache helps utilise during burst transfers.

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