What are memory drives?

NVMe, SSD, SAS or SATA: which is better?   

Everyone who has ever considered upgrading their server hardware has asked: «NVMe, SSD, SAS or SATA: which is better?

It is true that the drive – is a very important piece of hardware without which the server cannot function properly. That's why you should remember to replace it periodically to keep your server hardware up to date. But how do you sort through the vast array of drives available from manufacturers?

In this article, we'll take a closer look at each existing technology in this area and determine which one is best suited for your purposes.

NVMe

NVMe technology was introduced 11 years ago and has made it possible to significantly speed up data transfer. Many experts believe that NVMe has the fastest speed of any storage option on the market today. NVMe drives perform well with today's multicore processes, allowing for the most efficient computer performance.

It's worth realising that NVMe is widely used not only to enhance server hardware, but also to ensure the smooth operation of home and office computers, as some companies that manufacture such devices have started to actively introduce drives with this protocol.

Specialists highlight the following advantages of NVMe:

1. Enhanced instruction queue: thanks to the increased instruction queue, drives built with NVMe technology perform well with today's high-end processors.
2. High speed: this type of drive processes requests much faster than other drives.
3. Large Capacity: NVMe is characterised by a larger capacity, giving the user enough space to store all the files and data they need.

But, it's worth realising that the NVMe protocol also has drawbacks, including:

1. High cost: due to the fact that the drives based on this development, for many years already perfectly shows itself in the work and does not lose popularity, the cost of equipment using it is quite high.
2. Compatibility issues: before deciding to use NVMe, you should consult an expert and find out if it is compatible with your operating system, as drives designed with NVMe only work on the most modern systems.

SSD

SSD is a device designed for any data or software. This drive can be used as a device's primary and secondary memory, helping to lighten the hard drive's load and increase the speed of your device.

An SSD can store anything you want: images, videos, documents. But it's usually where you load your operating system and other important software.

SSD has the following advantages:

1. Good speed: of course, SSD drive is not as fast as the previous option, but still this mechanism is much faster than HDD.
2. Low probability of overheating: SSD does not heat up to high temperatures, so you will not experience interruptions in your computer due to overheating.
3. Low power consumption: by using an SSD drive, you can save electricity and therefore reduce your bills.

But, it's also worth considering the disadvantages of SSD storage, which include:

1. Cost: SSDs are more expensive than HDDs, so few people are willing to purchase such drives.
2. Limit Existence: This drive is based on a limited resource, so sooner or later the limit may be exhausted, and the SSD drive will have to be replaced.

SAS 

SAS – is an interface designed to connect storage devices. Typically, this technology is used to create server hardware. 

SAS has the following advantages:

1. Fast performance: SAS drive is as fast as its competitors and always shows excellent speed and performance.
2. Long life span: SAS has a much longer life span compared to many other SAS options.
3. Long period of uninterrupted use: SAS is characterised by a higher degree of resistance to the occurrence of failures, so this technology is actively used to assemble server hardware.

Experts highlight the following disadvantages:

1. High cost: Devices built using SAS technology cost more, which also affects the cost of renting a server.
2. Low capacity: SAS drives have a smaller capacity compared to some counterparts, which sometimes makes it necessary to install additional drives. 

SATA 

SATA – is a data transfer method that was introduced at the beginning of the 21st century to replace an already outdated technology. This mechanism involves transmitting information not one bit at a time, but several bits at a time. 

SATA – is a data transfer method that emerged in the early 21st century to replace an already outdated technology.

The following advantages of this technology can be highlighted:

1. Compatibility with many systems: SATA is perfectly compatible with a variety of modern systems, so there will be no compatibility issues when implementing this technology.
2. Low Power Consumption: A drive built using this interface uses significantly less power, so implementing this option can reduce costs to a large extent.
3. Accessibility to a wide range of consumers: SATA is becoming more and more affordable every year, so many computer owners are using it.

The following disadvantages of SATA can be highlighted:

1. Limited life span: SATA drives can only last a certain number of cycles, and after that they need to be replaced.
2. Low speed: SATA is not the fastest, so if transfer speed is important, you should choose another option.

Which is better

Your choice depends on the device you're choosing a drive for. Let's take a look at what you'll need each of the varieties we've reviewed:

Any of the following.

1. SSD – it is a classic option that is used to build computers, laptops and tablets. It is quiet and quite fast.
2. SATA and SAS – these are some of the most reliable interfaces. Many users have been using these devices for years for their purposes. SAS and SATA are also often used to build server hardware.
3. NVMe – drives designed using this protocol are the fastest among the rest, but, it should be understood that the equipment assembled on the basis of this mechanism will cost quite expensive. That's why you should responsibly consider the answer to the question about the rationality of using NVMe.

Selecting a drive for your server should be based on speed and cost requirements. We offer servers with SATA 3, SSD, SAS, NVME drives. We look forward to seeing you among our customers!

Conclusion

So, each storage unit option has its own pros and cons. But don't base your choice on the strengths or weaknesses of the selected options alone, you should also consider the purpose for which the equipment is being prepared, and then you'll be sure to choose a good drive!