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Cohesity SpanFS vs Nasuni comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Aug 12, 2024

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

Cohesity SpanFS
Ranking in File System Software
9th
Average Rating
10.0
Reviews Sentiment
7.5
Number of Reviews
2
Ranking in other categories
No ranking in other categories
Nasuni
Ranking in File System Software
3rd
Average Rating
8.8
Reviews Sentiment
7.4
Number of Reviews
36
Ranking in other categories
NAS (12th), Cloud Migration (6th), Cloud Storage (14th), Cloud Backup (34th), Disaster Recovery (DR) Software (18th), Cloud Storage Gateways (4th)
 

Mindshare comparison

As of August 2026, in the File System Software category, the mindshare of Cohesity SpanFS is 5.7%, up from 3.9% compared to the previous year. The mindshare of Nasuni is 16.5%, down from 28.0% compared to the previous year. It is calculated based on PeerSpot user engagement data.
File System Software Mindshare Distribution
ProductMindshare (%)
Nasuni16.5%
Cohesity SpanFS5.7%
Other77.8%
File System Software
 

Featured Reviews

SM
Evangelist / CTO at fgnext
Along with offering competitive prices, the solution can be used by small, medium, and large businesses
While guaranteeing the strictness of the file system, there is a lot of performance involved. The performance is not as good as I expected. It's not the functionality here but the performance level. It won't be a problem if it's twice as fast. Even though its stability has room for improvement, I would recommend it to my bigger customers. The only problem is the current performance of the individual nodes. As a sale-out solution with integrated load-balancing functions, performance is in principle not a problem at all. Capacity and performance are linearly scalable over the number of nodes in the cluster. An increase in the performance of the individual nodes in future releases would be desirable.
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

"It has snapshot capabilities. We take advantage of those."
"Scalability-wise, I rate the solution a ten out of ten."
"We switched over to it because it is an integrated solution that includes DataProtect and the platform, has other use cases for enterprise search, and can also do things like antivirus."
"Nasuni has helped decrease capital costs by 66% since we don’t need to buy as much excess capacity."
"One of Nasuni's best characteristics is its fully redundant system; we don't have to shift tapes or use other backup solutions. It's a good, full-featured product."
"The system has so far been doing an awesome job and working as advertised."
"The global file locking feature is valuable. The ability to quickly deploy new sites is also valuable."
"With a shift to more remote work during this past year, we deployed a new instance of Nasuni in Azure, which allowed us to be more flexible and support remote work better, something we wouldn't have been able to do with legacy file storage."
"Nasuni is tremendously easy to manage. It eliminates many of the administrative challenges associated with physical hardware storage, and you don't need to worry about any hardware failure or products reaching the end of their lives."
"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."
"Nasuni gives us a single platform with a 360-degree view of our data, which is important so that we know the size of our estate and the amount of data that we hold."
 

Cons

"The only problem is the current performance of the individual nodes. As a sale-out solution with integrated load-balancing functions, performance is in principle not a problem at all. Capacity and performance are linearly scalable over the number of nodes in the cluster. An increase in the performance of the individual nodes in future releases would be desirable."
"Its read performance can be improved. It is just slow in comparison to other file systems, but a lot of it also has to do with the fact that they have a limited number of spindles under each node."
"Its pricing can get a tad expensive."
"Customer support and response time on issues should be improved because their support can be hard to get in touch with and we have to wait for a long time to get a call back."
"The performance monitoring could be improved."
"One area that we've recently spoken to Nasuni about is single sign-on. Another is integrating Nasuni with Azure Active Directory. In our particular case, that would allow for third-party consultants to access our Azure Active Directory environment as opposed to coming to our on-premises environment."
"Nasuni could improve cloud integration and documentation of various ways we can leverage the product. It integrates with Azure, but the native Azure File Sync solution lets you divide data into tiers like hot, cool, and archived. Nasuni doesn't allow you to break the data apart into those tiered categories."
"There is some room for improvement when it comes to monitoring. We are not using Nasuni monitoring. We are using our own monitoring through Xenos. Nasuni can provide better monitoring capabilities for us to monitor all the filers and NMC so that we don't have to use a third-party tool."
"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."
"It is difficult to configure Nasuni. Adding a filer is an easy task, but deciding where to add them, how many to add, and what size to add takes a lot of time. I have to analyze my existing storage to understand how many users are going to access which folders. I have to design the Nasuni architecture accordingly."
 

Pricing and Cost Advice

"When it comes to pricing, I know the prices because I am also running tenders for customers where I am not offering other solutions. Hence, the prices are pretty competitive."
"I won't talk about specific numbers, but it is a little hard to compare it to other products out there because there is nobody out there that does exactly what they do. If you are just comparing it to another NAS box, it is probably going to look higher, but that's an unfair comparison because it does things that a NAS box can't do."
"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."
"Its pricing can get a tad expensive. When we first took Nasuni out, we were just paying for the service. We got storage at a reduced rate. It has now changed, and they're now more of an all-in-one type of thing. It can be quite expensive, but it works out. Apart from that, licensing-wise, it's very simple."
"The pricing is on par with everybody else, and fair."
"Its price is fair and reasonable. I don't have anything negative about its pricing and licensing. For us, there is also the cost of monitoring. We are monitoring through Xenos and not through Nasuni. That is another cost for us from the monitoring perspective, but as far as Nasuni goes, we don't have any other cost apart from the licensing fee."
"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 has a license fee as well as hardware costs, which we would incur if we want to use Nasuni Cloud Storage Gateway for upgrades."
"The cost of licensing is negotiated and billed annually per terabyte."
"It's cheaper than a lot of alternatives but it's not cheap."
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Top Industries

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

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

Ask a question
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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 ...
 

Also Known As

SpanFS
No data available
 

Overview

 

Sample Customers

Tribune Media
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 Cohesity SpanFS vs. Nasuni and other solutions. Updated: August 2026.
907,787 professionals have used our research since 2012.