Backblaze conducted a hard drive failure study on 1,04,778 hard drives at their data center. It revealed that out of these, 1222 drives failed between Jan 2018 and Dec 2018.
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In another study conducted by Backblaze, it was found that on an average 1,00,000+ hard drives fail every week in the US alone.
It’s evident from the given facts that hard drive failure is common. It goes without saying that a failing or failed hard drive results in loss of precious data.
But you may not know that a failing or failed hard drive in most of the cases produce unusual noise. Typically, these unusual sounds are the result of mechanical damage of hard drive’s component(s).
You must get alert if you observe any unusual noise coming out of your hard drive to prevent its failure and hence data loss. It’s best to contact a Professional Data Recovery Service Provider in case of a hard drive failure where your hard drive makes unusual noise, because there’s nothing much that you can do about it on your own. In fact, using hit-and-trial methods to fix mechanical failure of drive might result in permanent data loss.
In this article we’ll share the different types of hard drive noises such as clicking, grinding, buzzing, and clock ticking. We’ll also discuss about the reasons for these noises and their implications. But before that, let’s have a look at the structure of a hard drive so that it becomes easy for you to relate to the issues of unusual sounds.
Hard drives have delicate movable components that operate with electricity, and hence they are prone to physical damage. They are made up of mainly an Electronic circuit board, Actuator, Platter (a component that contains data), Actuator Arm, Head (Reads/Writes data from/to the platter), and Motor (Rotates the platter). Generally, if any of these components gets damaged, hard drive produces unusual noises.
Now that you know the key components of a hard drive, it’d be easier for you to comprehend the information that we’d be discussing further.
Let’s dig into various types of hard drive noises.
Given below are the types of noises and the reason behind these noises:
Failures such as stuck head and spindle, or failed bearing might hamper the motor from rotating. This results in a low, discrete, and irregular beeping or buzzing sound. This sound is so weak that it can’t be heard unless you keep your ears closer to the hard drive.
Reasons for Low beeping/buzzing noise:
The collapsed head might get damaged or scratch the platter leading to permanent data loss.
These noises are potential indicator of abnormal movement of arm while trying to Read/Write data.
For successful Read/Write operation, it’s required that correct signals are transferred between the components present on hard drive’s circuit board and the Read/Write head. If the head isn’t receiving or sending correct signals, it’ll try to perform the same Read or Write operation with no luck and would result in the noises that are typically referred to as clicking, clock ticking, or knocking noises.
Let’s discuss some of the reasons for these noises.
Reasons for Clicking/Knocking/Clock ticking noise:
If Preamplifier fails, the firmware would fail to recognize the signal and so the arm will try to send the signal again in a cyclic manner. This would result in abnormal movement of arm, producing clicking, knocking, clock ticking noise.
Likewise, if the firmware gets corrupt, improper signal will be sent to the head causing abnormal movement.
Your hard drive may produce grinding noise if the head touches the platter without freezing its rotation. This may happen because of the reasons mentioned below.
Reasons for grinding noise:
It’s a sharp piercing noise that resembles the sound of a pointed metal scratching another metallic surface. This happens if the head presses over the rotating platter.
Reasons for screeching noise:
The noises that we discussed above bring about data loss. Using your hard drive in a condition when it emanates these noises might be devastating, as it might result in permanent data loss. Any damage caused to the platter might lead to permanent data loss.
Even a small failure may trigger failure of other components, eventually damaging the platter which holds your data. For instance:
A sound coming out of your system doesn’t always mean that your hard drive is failing.
Sounds such as clicking, grinding, buzzing, and clock ticking are produced due to mechanical failure of hard drive, but, there are other sounds as well, which are not produced by the hard drive. These sounds could be produced by other components in your system that may be malfunctioning or even working perfectly fine. For instance, the sound produced by an optical disk drive during its normal operation or CPU fan making noise due to clogged vents.
This article helps you differentiate between the sounds produced by your hard drive and other noises/sounds, and thereby ascertain whether your hard disk is failing.
If you indeed notice a peculiar noise that implies drive failure, you must immediately contact a Professional Data Recovery Service provider to recover data from the failing hard disk before it fails completely. Proactive action is crucial to ensure safe retrieval of data in such cases because damaged components in failing drives might scratch the platter, resulting in permanent data loss.
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