Life Cycle of SSD – What You Need to Know


Nowadays everyone wants their computer to be faster, so they do all kinds of experiments and take many steps to make their computer faster.

But in today’s modern age there is a hard disk called S S D and if you insert this hard disk into a computer or laptop that has a very high speed but this SSD is capable of increasing the speed of the computer 50 times more.

Friends I am using SSD Hard Disk on my laptop and my laptop speed is much faster than before.

If I add RAM to my laptop then my laptop speed will be even faster. In today’s post, I will tell you how you can speed up your computer through SSP Hard which will make the speed of any software running on your computer much faster.

With the Flash Memory Summit coming up next week, I thought it would be a great time to explore SSD technology and the life cycle.

Unlike traditional hard drives, data storage in SSDs is not at the magnetic level, but inside the flash memory chips (NAND flash).

According to the design, an SSD is made by the motherboard, some memory chips (depending on the size in GB of the drive), and a controller that commands the SSD.

SSD memory is a volatile memory, in other words, it is able to retain data even without power. We can visualize the data stored in NAND flash chips as the electric charge in each cell. With this in mind, the question arises as to how long is the duration of the life span of SSD?

Wear flash memory

Writing operations are known to eliminate SSD memory cells, which shortens their life. But will the memories end that way?

Not all the memory used in flash chips is the same, there are actually three types of NAND.

  • SLC (single-level cell) – 1 bit data per cell
  • MLC (Multi-Level Cell) – 2-bit data per cell
  • TLC (triple-level cell) or 3 bit MLC. Three bits of data per cell

You can see: the more surfaces a cell has, the more storage space bits there are in the cell, resulting in higher capacity chips.

Thanks to today’s technological advances, we have SSDs that are capable of storing many GB and are affordable.

Not surprisingly, a recent report suggests that the TLC memory type should account for about 50% of total N&F chips by the end of 2015, while MCL chips account for 15% -20%. It will cost less.

However, there is a downside: adding more bits to cells reduces their reliability, stability, and performance.

Determining the position of the SLC cell (how much space it has) is fairly easy, as it is either empty or full, while it is even more difficult for MLC and TLC cells to do so because they have multiple states.

As a result, a TLC cell requires 4 times the writing time and 2.5 times the reading time of the SLC cell.

When discussing the life cycle of an SSD, storing more than one bit in a single cell also means speeding up memory.

A memory cell is made up of a floating gate transistor. It has two doors, a control door and a floating gate that is covered by a layer of oxide (you can see the schematic representation on the right).

Operations are performed every time, e.g. Cell programming and eraser, the oxide layer that traps electrons at the floating gate.

As a result, as the oxide layer weakens, electrons can escape through the floating gate.

How long does the SSD last?

This is a million-dollar question, obviously not possible to answer but … Continue reading!

The trend towards SSDs is to develop products based on 3-bit MCL (TLC) memory.

TLC memory is beginning to dominate the market for SSD. In common use, 2-bit MLC technology has come a long way in terms of stability and performance, not to mention SLCs that are less than necessary and almost completely missing.

In other words, manufacturers are living an extended life in favor of reducing the cost of allowing flash memory and increasing their storage capacity.

However, there is no concern about the duration of the SSD. In an experiment conducted by Tech Taxport on 6 SSDs to understand how they could tolerate the writing process, 2 out of 6 drives managed written operations for 2 PB of data.

And all the tested SSDs can write hundreds of TB without any hassle.

According to the results of the experiment, assuming 2TB of writing per year, the life span of SSD will be equal to 1000 years (2PB = 2000 TB / 2TB years = 1000 years).

Even with the increase in the number of data written on them, we will be able to use our SSD silently for years and years and years.


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