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A stack of ten bare 3.5 inch SAS hard drives, silver aluminium finish, no mounting brackets

Seagate

Seagate Constellation ES.3 ST2000NM0023 2TB 7200RPM SAS 128MB 3.5" internal hard drive

SKU CH-TXM6-TWZPQ

A 2TB 3.5in SAS hard drive spinning at 7200RPM with 128MB cache for enterprise storage arrays

  • 2 TB capacity stores large datasets
  • 7 200 RPM spindle speed delivers fast sequential access
  • SAS 6 Gb/s interface integrates with enterprise controllers
  • 128 MB cache buffers burst workloads
  • 5-inch form factor fits standard drive bays

Enterprise storage drive

The Seagate Constellation ES.3 ST2000NM0023 is a 2TB 3.5-inch internal hard drive built for continuous operation in servers and storage arrays. Its SAS 6Gb/s interface and 7200RPM spindle speed suit workloads that demand consistent throughput and dual-port reliability. The 128MB cache helps smooth bursty I/O patterns typical of database and virtualisation hosts.

Bare drive SAS connectivity

Supplied as a bare drive without brackets or cables, the unit fits standard 3.5-inch bays and backplanes that accept SAS 6Gb/s connectors. Dual-port SAS cabling provides path redundancy so a single cable or controller failure does not take the volume offline. The 128MB buffer absorbs write bursts before committing data to platters.

Thermal and power profile

At 7200RPM the drive generates measurable heat and vibration, so adequate chassis airflow is required for sustained operation. Typical idle and seek noise is audible in quiet rooms but masked by server fans in rack environments. Power draw follows enterprise 3.5-inch SAS norms for the stated capacity and spindle speed.

Istaknuto

  • 2 TB capacity stores large datasets
  • 7 200 RPM spindle speed delivers fast sequential access
  • SAS 6 Gb/s interface integrates with enterprise controllers
  • 128 MB cache buffers burst workloads
  • 5-inch form factor fits standard drive bays

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What does the SAS 6Gb/s interface cap the transfer rate at in practice?

The SAS 6Gb/s interface limits the maximum external transfer rate to 6 Gbit/s, so sustained throughput cannot exceed that ceiling even though the drive spins at 7200RPM.

What physical space and mounting does the 3.5-inch SAS drive require?

The drive needs a standard 3.5-inch drive bay and uses the SAS connector layout for both data and power; it is a bare drive without brackets or rails.

How is the bare drive installed, and which step is often missed?

Mount the drive in a 3.5-inch bay, attach a SAS data cable and a SAS power cable to a compatible controller or backplane, then initialise the disk in the OS; the step often missed is initialising and formatting the new volume before use.

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