Solid-state drive and it’s work


Many users of Windows PC wade into the solid-state drive (SSD) market without the proper knowledge on it. Let us take a look at solid-state drives and what’s inside them, to help you in preparing for your upcoming storage device.

  • What is a solid-state drive?
  • Why use a solid-state drive?
  • Choosing the right type of memory
  • Understanding NAND memory chips
  • Choosing the right connection
  • Choosing a solid-state drive

What is a solid-state drive?


Basically, an SSD is just a group of memory chips on a circuit board when you get down to a base level. Usually, it has an In/Out interface  in the form of PCIe or SATA that feeds power and transfers data.

Hard disk drives don’t contain actuator arm that has to move across a spinning magnetic platter to read or write data. In fact, it doesn’t contain moving parts at all. Many SSDs instead use NAND flash memory which is relatively fixed and will last for years.

Why use a solid-state drive?

solid state drive

There are several reasons for opting an SSD in place of a standard HDD. Laptops consists of a storage device that isn’t disrupted by bumps which is a huge boon. HDDs with their moving parts can be damaged if they are spinning when the impact or drop happens. SSDs are far less likely to be affected by impacts.

Mobility is a huge part of laptops. SSDs are both lighter and smaller. As it is lighter than HDD,SSD saves space to include other hardware in the laptop and reduces thickness and weight. SSDs also require less power. So your laptop battery should last longer.

Many users who have been using Windows for years know how long boot times can be at the time of using an HDD. Variation in speed loading apps on your PC might be minimal.But using an SSD to boot Windows 10 will significantly cut time spent twiddling your thumbs.

On the top of all these perks, SSDs also contain a way lower failure rate than HDDs. If you back up important data, it’s never a bad idea to save it on an SSD.

Choosing the right type of memory


You must look out for types of memory when buying an SSD as there are three types :

  • Single-level cell (SLC): For this reason, SLC memory is the most precise and fastest. It takes the least amount of power and will last the longest at the time of writing. The trade-off is that it is also the most expensive. SLC solid-state drives are typically used in an enterprise scenario for their price. On concord, it is available to everyone.
  • Multi-level cell (MLC): Each cell holds two bits of data per cell a 1 and 1 0. As it can hold both bits, there are four possible values. They are 00, 11, 01, and 10. MLC memory can thus have a larger amount of storage without physical size increasing and are available for a cheaper cost. But have less and slower precise write speeds. They also use more power and wear out about 10 times faster than SLC memory as it has increased usage of power.
  • Remember that we are not talking about longevity in months or years . We are talking about decades. By the time most SSDs wear out they will likely be long outdated by the next coming storage technology. MLC solid-state drives are the standard drives found in most high-end devices today.
  • Triple-level cell (TLC): Each cell holds three bits of data. They are available in big storage sizes at a decent price. The tradeoff is a slower read and writes speed and less precision. As well as reduced longevity thanks to increased power consumption.

Understanding NAND memory chips

nand memory chips

NAND is nothing but Negative AND memory chips and  house your SLC, MLC or TLC memory cells. At the time of  first emergence of SSDs in the market,The cheapest models had about five NAND chips in them at the time the expensive models had up to 10 NAND chips.

Now current technology allows for way more NAND chips and way more storage. A relatively new approach, Vertical NAND (V-NAND) stacks cells on top of each other. Cells retain the same performance because they are not all cramped together. You can have large storage sizes without large physical sizes. For instance, a single 48-layer V-NAND chip can hold 32 GB. So you would have 125 separate NAND chips in a 4TB SSD.

All NAND memory contains error-correcting code (ECC) built in. This is designed to fix any errors that occur as data is written and read on your SSD. Your cells will work properly and the overall health of your SSD will be maintained.

Choosing the right connection

right connection

There are a few common options to choose.

  • SATA III: Serial ATA (SATA) III technology came about back in 2009. Today also it is still used in many SSDs. Read and write speeds on an SSD connected with SATA III. It hits about  600MB per second.Generally,  SATA was fine for HDDs but limits many SSDs.
  • PCIe: Peripheral Component Interconnect Express (PCIe) plug right into a PCIe lane in your motherboard and solid-state drives bypass SATA connections. While PCIe solid-state drives are much more expensive. They transfer data much faster and write speeds can surpass 1GB per second.
  • M.2: This is all-in-one used in PCs and most common in laptops. M.2 SSDs are physically smaller without sacrificing storage space. They are available in both PCIe variants and SATA III, depending on which your device supports.
  • NVMe: Non-Volatile Memory Express (NVMe) technology is relatively new. Basically it was designed specifically for SSDs and the problems they faced using SATA connections. This is designed to maximize the requests sent to an SSD or the amount. At a time to receive requests from multiple processor cores as well.What does this mean for you? Real results will show up in enterprise-sized servers. On concord, you might get to know that your PC is suddenly able to load apps instantaneously. NVMe solid-state drives come in either M.2 or PCIe formats to fit both laptops and desktops.

Choosing a solid-state drive

choosing ssd

Through the guide you have read that, you can go about choosing an appropriate solid-state drive for your laptop or desktop.

The sweet spot for most people is probably an MLC solid-state drive with an SATA III connection on their desktop. While most people albeit with an M.2 connection will enjoy the same in their laptop.

If you’d like an idea of where to start, we’ve put together a great SSD buyer’s guide to getting you on your way.

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