Hard disk drive

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A hard disk drive (HDD), hard disk, hard drive, or fixed disk[b] is an electro-mechanical data storage device that uses magnetic storage to store and retrieve digital information using one or more rigid rapidly rotating disks (platters) coated with magnetic material.

  • 15.000 RPM, sustained transfer rates of Transfer Rate Up between 125 Mbytes/sec [1] and 204 Mbytes/sec )(2010)[2] depending on product generation
  • 10.000 RPM
  • 7.200 RPM

Related terms[edit]


  1. Learn about SSD storage technology and compare it with HDD technology
  2. Use lsblk and blkid commands in Linux to identify your HDD devices
  3. Use iotop, iostat and sar -d in Linux to assess you disk usage
  4. Read wikipedia:Hard_disk_drive_performance_characteristics

See also[edit]

  • https://www.seagate.com/docs/pdf/marketing/po_cheetah_15k_5.pdf
  • https://www.seagate.com/files/docs/pdf/datasheet/disc/cheetah-15k.7-ds1677.3-1007us.pdf
  • https://www.storagereview.com/review/wd-my-passport-wireless-review