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Silver 3.5 inch SAS hard drive with circuit board visible

Seagate

Seagate ST4000NM0023 4TB 7200RPM 128MB 3.5" SAS internal hard drive

SKU CH-8PJG-7XDG1

3.5-inch SAS hard drive delivers 4 TB at 7200 RPM with a 128 MB cache for server workloads

  • 4TB capacity stores large server datasets
  • 7200RPM rotational speed delivers fast data access
  • 128MB cache buffer improves read/write performance
  • SAS 6Gb/s interface enables high-throughput connectivity
  • Perpendicular Magnetic Recording technology increases storage density

Seagate Constellation ES.3 4TB drive

The Seagate ST4000NM0023 is a 4TB 3.5-inch internal hard drive spinning at 7200RPM with a 128MB cache and a SAS 6Gb/s interface. It is built for server and storage-array environments where sustained throughput and vibration tolerance matter. The unit ships as a zero-hours drive from the Constellation ES.3 line.

Server and array deployments

This drive suits administrators expanding SAS-based RAID arrays, backup targets or nearline storage tiers that demand 7200RPM performance and dual-port SAS connectivity. It is not appropriate for desktop PCs, laptops or external enclosures that lack a SAS controller or backplane. Buyers who need a single-drive upgrade for a consumer motherboard should look elsewhere.

SAS 6Gb/s interface

The single specification that decides fit is the SAS 6Gb/s interface; the drive requires a compatible SAS HBA, RAID controller or backplane to operate and will not function on ports that support only other protocols.

Punti di forza

  • 4TB capacity stores large server datasets
  • 7200RPM rotational speed delivers fast data access
  • 128MB cache buffer improves read/write performance
  • SAS 6Gb/s interface enables high-throughput connectivity
  • Perpendicular Magnetic Recording technology increases storage density

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Domande su questo articolo

What controller and port does the ST4000NM0023 need to operate?

It requires a SAS host-bus adapter or RAID controller with a 6Gb/s SAS port and a compatible cable or backplane.

Can the 7200RPM SAS drive share a backplane with 6Gb/s SAS SSDs?

Yes, the drive uses the same 6Gb/s SAS interface, so it can populate the same backplane as SAS SSDs running at that speed.

How can I confirm the 128MB cache is active after installation?

Run the built-in Drive Self Test and check the controller BIOS or management utility; both will report the 128MB buffer size.

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