We won't go into explaining what a hard drive is, because it's part of popular culture and we've all seen or caught one of them. The important thing about this is that we need to be aware that its construction has undergone a few changes and that this has made the industry more vulnerable to SSDs.
So, maybe the industry should have put more meat on the grill and opted for new formats or concepts, because as we'll see below, the HDD components remain the same as they were five decades ago.
HDD components: small improvements that made a big difference
Since 1956 a major change has been made by those overworked drivers at the operational level to reduce their item 3.5 inch and 2.5 inchand connectivity indicator to adapt to new speeds and times.
The fact is that they are falling behind in performance than expected, as they could not break down SATA 3
Security has always been a major part of these years as the cornerstones of the industry and in recent years they have come with significant advances, especially influenced by SSDs and their failure rates and useful lives.
For this reason and because of the company's advanced investment, the concept of HDD and its components remains undergoing year-to-year adjustments, where development is small, but making a difference.
The dishes
The plates are a series of discs not larger than 0,5 mm and are responsible for storing information using magnetic tracks. They find a central hole that varies in width and where the car is located around them.
They are sturdy, bonded over one another, separated by true precision so that they do not touch at any time and are currently the biggest headache in the industry, because adding the much needed volume, techniques and materials that allow for a small grain, so you can record smaller tracks in the same size.
They are all made up of a thin layer of magnetism that helps to unify the tracks and over the last few years they are made of different types of glass or ceramic.
Axis
The axis plays an important role in the HDD, since the plates are oriented toward it as we mentioned above. This axis positions them in such a way that it does not allow for a much slower slider of any of them, when and should be so well measured and with such precision, that in HDD cases in large size it should allow the same general speed and maximum value without rotating loss.
To be part of the highest invoice in HDD usable life, manufacturers offer the best and carry the most, because in extreme cases they have to turn around 15,000 RPM per minute
So is the trust given to it, that other parts other than the motor or axle tend to fail earlier.
Speaker and arm
They are responsible for placing and writing on plates. It can be said that today they are one, because new methods include fewer and fewer pieces to complete with inertias and consequently more precision.
An actuator is a motor whose sole function is to control the movement of the arms. The larger the number of these, the better and more accurate the actuator should be, as the weight and inertia of such a fast flow have a direct effect on the performance and reliability of the HDD.
The arms are instead responsible for writing on the plates. Each plate has an arm and this one in its last section has what is known as a "slide", which is partly "floated" on the plate and is responsible for writing and performing the reading on the disc.
To give us an idea of what this technology is about, the slider floats at a distance of 40 atoms at a speed of 15,000 RPM. To put an analogy, it is as if the plane is turning at speed 800 Mach less than an inch to the ground
Table of Contents
