data storage – know about your Hard Disk Drive (HDD)

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HDD: Hard Disk DriveHard disk drive or hard disk or disk are same terminology which we used day-to-day basis. This is one of the frequently used storage media for data storage.

Overview of HDD: Hard Disk Drive

Mechanical Components of Hard Disk Drive
Mechanical Components of Hard Disk Drive

Different Mechanical Components

I think, you are interested to know about your different major components of hard disk drive , which are as:

  1. Platters: Platter is the component where actual data stored.
  2. Read/write heads: data is read and write from platters by using read/write head. its attached to the actuator assembly. Hihger level system like OS, volume mangers, and file system never know anything about read/write head
  3. Actuator Assembly: each disk drive has a single actuator assembly and its responsibility is to move the r/w heads under the direction of controller. As a single actuator so moves in with all heads.
  4. Spindle motor: every platter in a disk is connected to spindle and its responsibility is to spin the platters. Each disk having single spindle . each patter spins at the same velocity which is know as RPM (Revolution Per Minute).


For more in-depth knowledge , you can read out one of the famous book in the field of data storage i.e. Data Storage Networking by Nigel Poulton. I really like this book to grasp in depth knowledge of our data storage and networking. I read out this book during my M.Tech. program and I really enjoyed by reading this. And I strongly recommend to read out this text book once in your career.

Thanks for visiting this article for Hard Disk Drive. You can also visit Data Storage Tutorial Listing page for more articles on Data Storage.
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