Internal Hard Drive Seagate 20.0TB 7200 256MB SATA3 EXOS X20 Enterprise HDD ST20000NM007D 3.5" 20TB

Seagate Exos X20 ST20000NM007D 3.5-inch 20TB Enterprise Internal Hard Drive

The Seagate Exos X20 ST20000NM007D is a 20TB 3.5-inch enterprise internal hard drive with a SATA 6Gb/s interface, a 7200 RPM spindle speed and a 256MB cache. It uses a helium-sealed design and is built for continuous 24x7 operation.

According to Seagate, the Exos X family targets cloud and large-scale data centers, big data applications, high-density RAID storage, distributed file systems such as Hadoop and Ceph, enterprise backup and restore, and centralized surveillance. The ST20000NM007D is a SATA model with a single interface port.

The drive ships in the 512e format and can be switched to 4Kn with Seagate's FastFormat routine. Switching erases all data on the drive, so it should be done before data is stored, and data must be aligned to 4K sectors to benefit from the performance gain. The drive's weight per the manufacturer is 670 g.

Key features

• 20TB in a single drive - High capacity for better storage density in the rack: 20TB in one 3.5-inch drive.
• SATA 6Gb/s and 7200 RPM - A SATA 6Gb/s connection with a sustained read transfer rate of up to 285 MB/s (272 MiB/s), a 7200 RPM spindle speed and an average latency of 4.16 ms.
• Helium-sealed design - A helium-sealed design lowers power use and drive weight, and a side-sealing weld adds handling robustness and leak protection.
• PowerChoice and PowerBalance - Power management technologies that improve the balance between performance and power draw (watts per TB) and help lower operating cost.
• Enterprise-class reliability - A mean time between failures (MTBF) of 2,500,000 hours, an annualized failure rate of 0.35% at full 24x7 operation and 8,760 power-on hours per year.
• Security and sensors - Digital environmental sensors monitor the internal operating conditions of the drive, and Seagate Secure features include firmware verification (RSA 3072) and safe, quick drive retirement. The drive supports hot-plug operation per the SATA specification.

Specifications