HGST Ultrastar He8 0F23301 8TB 7200 RPM 128MB SAS 12Gb/s 3.5" internal hard drive

Enterprise Capacity

The HGST Ultrastar He8 0F23301 is an 8TB 3.5-inch internal hard drive built for servers and data-centre workloads. Its helium-sealed design delivers the highest capacity in the standard form factor while maintaining enterprise-grade reliability. The SAS 12Gb/s interface suits high-density storage arrays and distributed file systems such as Ceph or Hadoop. Buyers needing a SATA-only connection or a smaller 2.5-inch form factor should look elsewhere.

Thermals and Power

HelioSeal helium technology reduces internal drag, yielding industry-leading idle and active power efficiency measured in watts per terabyte. Compared with 6TB air-filled drives the 8TB model uses 23 percent less idle power and achieves 44 percent better watts-per-terabyte performance. The 7200 RPM spindle speed and 128MB cache sustain throughput without exceeding typical enterprise thermal envelopes. No acoustic or active cooling specifications are supplied.

Deciding Specification

The SAS 12Gb/s interface is the single attribute that determines compatibility; the drive will only operate in controllers or backplanes that support 12Gb/s SAS signalling. A SATA-only host bus adapter cannot use this drive, and no interposer or converter is included. Verify your storage controller supports SAS 12Gb/s before purchase.