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EXAScaler vs Nasuni comparison

 

Comparison Buyer's Guide

Executive Summary

Review summaries and opinions

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

Categories and Ranking

EXAScaler
Ranking in File System Software
8th
Ranking in NAS
17th
Ranking in Cloud Storage
17th
Average Rating
9.0
Reviews Sentiment
8.5
Number of Reviews
1
Ranking in other categories
Storage Performance (2nd), Cloud Master Data Management (MDM) (11th)
Nasuni
Ranking in File System Software
1st
Ranking in NAS
7th
Ranking in Cloud Storage
7th
Average Rating
8.8
Reviews Sentiment
7.4
Number of Reviews
36
Ranking in other categories
Cloud Migration (3rd), Cloud Backup (15th), Disaster Recovery (DR) Software (11th), Cloud Storage Gateways (3rd)
 

Mindshare comparison

As of January 2026, in the File System Software category, the mindshare of EXAScaler is 1.7%, up from 0.3% compared to the previous year. The mindshare of Nasuni is 18.7%, down from 26.2% compared to the previous year. It is calculated based on PeerSpot user engagement data.
File System Software Market Share Distribution
ProductMarket Share (%)
Nasuni18.7%
EXAScaler1.7%
Other79.6%
File System Software
 

Featured Reviews

reviewer2544219 - PeerSpot reviewer
Chief Architect at a tech services company with 1,001-5,000 employees
Solution enables exceptional performance and immense scalability for AI cluster training
I am a system integrator, and my customers are using EXAScaler as the de facto parallel file system for Google Cloud. They primarily use it for large AI cluster training EXAScaler provides amazing performance in terms of sequential read and random access, and it has a significant scalability…
SD
Infrastructure Architect at a energy/utilities company with 10,001+ employees
Cloud data management that achieves cost efficiency with advanced data protection features
I am currently using Nasuni for seismic data. We have a huge data size, and we want to reduce costs. Nasuni acts as a caching solution, so we put some data into the cache, and the rest goes to the blob, which helps us save on costs. We use it for applications like Petrol and Tech Log, where 3D…

Quotes from Members

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

Pros

"EXAScaler provides amazing performance in terms of sequential read and random access, and it has a significant scalability advantage as it is scalable to petabytes."
"The customers who use DDN EXAScaler are happy, especially when using large AI clusters for training."
"I would recommend Nasuni because it's a proven product that has delivered results for us even in the worst-case scenario. If you're still using a traditional cloud solution like native Azure products, you are still susceptible to human error. Also, you would need to architect your backup and DR solutions, then integrate, maintain, and administer them."
"I can see who is logging in on files from all over the globe. For example, if a file is locked, maybe a user in Shanghai has locked files or something, I can see that from the Management Console, then unlock the file."
"The most valuable feature is the simplicity of the backup and restore functions."
"The biggest and most impressive thing for us is the operational recovery (OR) and disaster recovery (DR) capabilities that Nasuni has. If a filer goes down, or an ESX server goes down, then we can quickly recover."
"The most valuable feature is that we have redundancy in our data. It's nice to know that it is cached both locally on the filters, as well as stored on that cloud."
"Continuous File Versioning is one of the best features because it helps you to restore at any point in time. That means you don't have to worry about a ransomware attack. Even if that attack happens, you can restore all the data to five minutes ago and save everything."
"The snapshot functionality and the unified file system are definitely the most valuable features for us. The UFS allows everybody across the organization to see the exact same data at the same time, instead of having different file servers with different structures on them, and that's mission-critical. We have different branches throughout our organization that have to act on that data."
"Snapshot backup is most valuable. It's quick and easy to use. It's controlled only by an administrator, which is very good. It takes 10 seconds to back up a spreadsheet of three or four megabytes."
 

Cons

"One challenge with EXAScaler is during upgrade time, as it can be problematic when upgrading node by node. Additionally, it is not multi-protocol by nature, requiring additional hardware to support various protocols like NFS or object storage."
"One challenge with EXAScaler is during upgrade time, as it can be problematic when upgrading node by node."
"Nasuni does not support different retention policies within the same volume, so you have to keep creating volumes for retention policies. When you create a new volume, it means you're starting from zero all over again. You can't move data between two volumes. You have to move them from your physical device to Nasuni or your cloud device to Nasuni."
"Nasuni recently implemented a health system for filers. However, it needs better visibility because it lacks data and an explanation, or reasoning as to why a particular filer may be unhealthy."
"Room for improvement would be the speed of replication of new files. I would also like to see cloud mirroring."
"I suggest Nasuni improve their syslog forwarders to support TCP protocol, as it's more secure than UDP, which is plain text and not protected at all."
"The performance of the filesystem could be improved."
"Some of their cross-platform features are really good, but it could always use more."
"The performance monitoring could be improved."
"Nasuni provides enough reporting to see what's happening. You can see the number of shares, total volume, issues, conflicts, etc., but it doesn't provide much visibility from a content perspective. For example, it doesn't tell you the data age. When you're trying to sort and filter information, the data creation date is a critical factor. Nasuni doesn't give you that. You can't get a count of all the file types, like the number of PDFs, Word docs, and PPT files."
 

Pricing and Cost Advice

Information not available
"With this solution, the license renewal is pretty swift. With the virtual appliance, you just need to take care of the OS versions and patches. In a way, we don't have to struggle much with renewals because the only thing that we need to take care of are the licenses. We renew it every three years. This aspect goes with infrastructural costs because it doesn't cost us too much to maintain the solution."
"It is around $850 per terabyte per year. Any additional costs that you would incur are for the local caching devices that you'll need to access Nasuni. You kind of provide your own virtual machines or compute to access the data. You also pay for the object storage. So, there are three parts to it. There is the Nasuni license per terabyte. You would also pay for the actual object storage in the cloud, and then you would pay for virtual machines to access the storage."
"It's cheaper than a lot of alternatives but it's not cheap."
"The pricing is on par with everybody else, and fair."
"There are cheaper forms of storage, but Nasuni is fairly priced for the functionality it offers. I can get basic file shares provisioned in Azure and pay for the storage and the CPU. The overall cost would be much less than Nasuni, but I would need to build the management console and encryption process, so it would cost a lot to develop that kind of functionality."
"They could lower the cost, but it saves so much money when you go into it (by losing all the backup)."
"Our agreement is set up such that we pay annually per terabyte, and we buy a chunk of it at a time. Then if we run out of space, we go back to them and buy another chunk."
"The cost of licensing is negotiated and billed annually per terabyte."
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Top Industries

By visitors reading reviews
No data available
Computer Software Company
15%
Financial Services Firm
10%
Manufacturing Company
9%
Construction Company
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available
By reviewers
Company SizeCount
Small Business3
Midsize Enterprise8
Large Enterprise24
 

Questions from the Community

What is your experience regarding pricing and costs for EXAScaler?
EXAScaler is a bit expensive, particularly when comparing the total cost of ownership.
What needs improvement with EXAScaler?
One challenge with EXAScaler is during upgrade time, as it can be problematic when upgrading node by node. Additionally, it is not multi-protocol by nature, requiring additional hardware to support...
What is your primary use case for EXAScaler?
I am a system integrator, and my customers are using EXAScaler as the de facto parallel file system for Google Cloud. They primarily use it for large AI cluster training.
Does Nasuni have a good pricing model?
Based on the experience of my organization, Nasuni is definitely worth the money, since it gives you an all-in-one solution where you'd usually need several programs. About the cost, there isn't a ...
Is it easy to restore files with Nasuni?
As someone who has used this feature of Nasuni I can tell you - yes, it's good for file recovery and you'll definitely benefit from very quick times. I can't tell you if it's the best one because I...
What features and services does Nasuni offer?
Hi, if you pick Nasuni, you'll be benefiting from many services for a good price. Well, it's a personalized price you get after an agreement with the company but in my organization's case, it is a ...
 

Comparisons

No data available
 

Overview

 

Sample Customers

Information Not Available
American Standard, CBRE, Cushman & Wakefield, E*TRADE, Ithaca Energy, McLaren Construction, Morton Salt, Movado, Urban Outfitters, Western Digital
Find out what your peers are saying about Nasuni, CTERA, Panzura and others in File System Software. Updated: December 2025.
879,853 professionals have used our research since 2012.