Will Solid State Drive (SSD) Slow Down when Out of Space?

What kind of a drive are you using on your computer? If you are using a solid state drive (SSD), have you ever noticed that the SSD will slow down when it becomes full? Now, in this article, we will discuss about this question in depth.

Nowadays, in comparison to traditional hard disk drive (HDD), solid state drive (SSD) earns a lot of kudos due to its speed and it not containing moving parts. However, it doesn’t refer to that SSD can get exempt from failure. It still can fail for many reasons, like sudden power failures, file system damage and so on. If the drive fails, the data stored in it will surely suffer, like PST corruption.

Aside from failures, SSD would be subject to other problems. For instance, if you fill a SSD up, in other words, if the SSD reaches its storage limit, it will slow down dramatically. Many users are confused and suspicious about the reasons behind such a case. So, in the followings, we will unveil the principles. Read on to get it.

Will Solid State Drive (SSD) Slow Down when Out of Space?

Why SSD Works Faster

As we all know, although both SSD and HDD are used for data storage, they work thoroughly differently from each other. On a SSD, when you intend to store a file, the drive will locate the necessary empty blocks and then write on them to save the file, which is the quickest way to write to a storage medium. The reason why SSD works like this is due to TRIM feature. TRIM is a function that can command the SSD to find and clean up the blocks where you have deleted a file. In this way, afterwards, when a new data is to be written, SSD can escape from the process of deleting needless data inside the blocks so that it works pretty fast.

When SSD Is Out of Space

With time going on, if you constantly store data on the SSD and its storage fills up, the drive will start to run out of the blocks. SSD works on basis of NAND Flash memory, which can only write data in 4 KB – 8 KB pages inside of 256 KB blocks. That is to say, SSD is incapable of utilizing the remaining space in a block to write new data. In this case, SSD will loads the data inside the block into cache, changes its content for adding the new data, and then write pages back to this block. This course experiencing repetitive write operations is pretty time-consuming. Hence, the SSD will slow down greatly.

Keep SSD in Good Performance

Therefore, so as to keep your SSD in good performance, you can add extra storage by installing an additional hard disk drive on your computer. By this means, you can store large files and data files on the HDD, such as movies, music and so on. As for how to get the most from using a SSD and HDD on one computer, you could refer to my previous article – “5 Effective Tips to Use SSD & HDD Together on One Computer”.

Author Introduction:

Shirley Zhang is a data recovery expert in DataNumen, Inc., which is the world leader in data recovery technologies, including mdf repair and outlook repair software products. For more information visit www.datanumen.com

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