What Is Cloud NAS (Network Attached Storage)? [Full Information]

Tracy King updated on Feb 22, 2023 | Home > Knowledge Center

You've heard people talk about Cloud NAS or heard it being discussed at work, but you're not sure what it is? No worries, we've got you covered with this article. You will learn all you need to know about cloud NAS so that you will not feel left out of the conversation the next time it is brought up.

What Is Cloud NAS (Network Attached Storage)?

Let's start with the fundamentals. What exactly is NAS? NAS is an abbreviation for network-attached storage. It is essentially a storage device that is network-connected and can be accessed remotely. It is scalable, which means you can add extra storage if necessary. It's a fantastic alternative for businesses since it gives the impression that you have a private cloud right in your workplace without spending the large quantity of money required for the actual private cloud system. Making it extremely convenient and quick.

Now let's talk about cloud NAS. Cloud NAS is a virtual appliance, a virtual storage device that can be accessed through a network remotely, just like other NAS technologies, but there is a difference too. Unlike other standard NAS solutions, Cloud NAS is not a physical device. It uses cloud computing. Thus, no hardware is required, allowing it to provide flexible deployment options while saving money.

Benefits of Using s Cloud NAS Service

Let's discuss cloud NAS benefits more in-depth. Using cloud NAS has a lot of benefits.

  1. 1. Cloud NAS technology is cost-effective
  2. 2. Integrated Data Resiliency
  3. 3. Cloud NAS is much more flexible than traditional NAS technologies

1. Cloud NAS technology is cost-effective

Cost-effectiveness is perhaps one of the most fundamental advantages of cloud NAS from a business standpoint. When using cloud storage, you can choose to pay just for the storage capacity you need. You will also be able to reduce internal resource costs. There is no need to deploy servers or engage maintenance personnel. The cloud service provider will bear all of these costs.

2. Integrated Data Resiliency

Data resiliency sounds like a big word, right? Let's explain it first. An organization's ability to sustain business continuity in the face of unexpected interruptions is referred to as data resilience. Unauthorized parties cannot access or modify data that is resilient. Cloud NAS data resilience is built in by storing several copies of data on different disks. As a result, it ensures that your data is securely stored.

3. Cloud NAS is much more flexible than traditional NAS technologies

Unlike conventional servers, cloud NAS is simpler to set up and maintain. Data stored on cloud NAS can be accessed from anywhere, making it extremely convenient to use.

Which is Better: On-site NAS vs. Cloud NAS

Before we compare the two, let's ensure you understand on-site NAS. On-site NAS refers to traditional NAS technologies that were implemented before the cloud NAS. Of course, it's still being used, and it depends on customers' preferences which one they'll choose. On-site NAS is a system deployed in data centers or workspaces. The systems were small and fit in nicely.

Let's compare them based on the following factors:

  1. 1. Price
  2. 2. Storage
  3. 3. File Sharing
  4. 4. Security Level


On-site NAS refers to hardware; generally, the costs rely purely on the required amount of storage. If you require more storage than you currently have, you can purchase additional hard drives to connect to your on-site NAS, but of course, that's going to cost extra. Average prices for on-site NAS vary from $500 to $1000.

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Cloud NAS is a generally less expensive option of the two. Some of the providers even offer a certain amount of storage for free. If you require more storage, the cost of cloud storage can range from a few dollars to hundreds of dollars each month.


On-site NAS storage is entirely dependent on the number of hard disks you have. The more capacity you want, the more hard drives you will need to install. There are essentially two setups for on-site NAS devices. First, choose a storage size ranging from 500GB to 4TB. If that isn't enough storage, the second option is available. Adding extra hard drives with storage capacities of up to 10TB.

Cloud NAS Although the storage capacity isn't as huge in this scenario. Cloud NAS provides its own set of benefits. The most obvious benefit is the ease with which storage capacity may be increased. There is no need to buy any extra equipment. All you have to do is call your provider, and they will do the job for you.

File Sharing

On-site NAS - Compared to cloud storage, NAS offers more access and capacity for sharing. Customers may link their NAS to different types of gadgets like laptops, mobile applications, etc. It's convenient since the data may be retrieved by just plugging in. Excellent for big groups of individuals collaborating and exchanging data.

Cloud NAS – But when it comes to accessibility and convenience, cloud NAS is a clear winner here since it can be accessed anytime, anywhere. All it takes is just a few clicks on your laptop, and you can access the data without any complications or extra work.

Security Level

On-site NAS – when it comes to data, security is one of the biggest concerns. When you use on-site NAS, you are the sole owner of the data. Because there is no third-party involved, it is the safer option of the two.

Cloud NAS – in this case, a third party is involved in storing your data. But the providers have set up a very secure system for storing your data and accessing them as an outsider definitely won't be easy. So security shouldn't be a concern in this case either.

Comparison On-site NAS Cloud NAS
Storage Costs more since purchasing additional hard drives are required when adding more storage Costs more since purchasing additional hard drives are required when adding more storage
Storage It has a bigger storage capacity It can't store as much but adding extra storage is much simpler
File Sharing Sharing files and fetching data is faster Fetching data is more convenient since it can be done anytime, anywhere

When choosing between these two, there is no one clear-cut answer. To determine the best option for your company, you must examine many aspects, including pricing, your company's demands, and the risks involved.

I would recommend using the cloud option for small businesses since setting it up requires much less financial and human resources than the other option.

What is the Best Cloud Storage?

Cloud NAS is the ideal option for some specialized applications that demand a large amount of storage space for computer-intensive systems. This category includes applications based on artificial intelligence and machine learning.

Let's talk about some of the best cloud storage brands.

  1. 1. Synology
  2. 2. QNAP
  3. 3. WD



Sinology is a Taiwan-based company providing cloud storage for millions of customers. It's one of the most trusted brands in the industry. Sinology provides DSM users with a wide selection of cloud services, enabling them to connect to their Synology NAS in the easiest and most flexible way possible while protecting their vital data in a dedicated data center.



Similar to Sinology, QNAP is a Taiwan-based company and a leader in the industry. According to QNAP vision, NAS is more than just storage. They have built a cloud-based networking infrastructure that enables users to host and develop AI analysis, edge computing, and data integration on their QNAP systems.



Western Digital is California-based data storage company. Like the other two mentioned above, WD is also one of the leading brands in the industry. Western Digital offers synchronization and backup software for major operating systems, including Windows and macOS, as well as apps for mobile platforms such as Android and iOS.

Final Thoughts

The standard NAS method's cloud-based virtualization simplifies infrastructure while providing a variety of flexible deployment choices. Now that you understand the fundamentals of cloud NAS, you should be able to make an informed decision.

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Updated by Daisy

Daisy is the Senior editor of the writing team for EaseUS. She has been working in EaseUS for over ten years, starting from a technical writer to a team leader of the content group. As a professional author for over 10 years, she writes a lot to help people overcome their tech troubles.

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Written by Tracy King

Tracy joined in EaseUS in 2013 and has been working with EaseUS content team for over 10 years. Being enthusiastic in computing and technology, she writes tech how-to articles and share technical solutions to resolve Windows & Mac data recovery, data backup, partition management, data transfer, Windows update issues, etc.

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