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Cohesity SpanFS vs Nasuni comparison

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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
7.3
Number of Reviews
36
Ranking in other categories
NAS (14th), Cloud Migration (8th), Cloud Storage (14th), Cloud Backup (30th), Disaster Recovery (DR) Software (20th), Cloud Storage Gateways (4th)
 

Mindshare comparison

As of November 2026, in the File System Software category, the mindshare of Cohesity SpanFS is 5.4%, up from 5.2% compared to the previous year. The mindshare of Nasuni is 15.9%, down from 21.6% compared to the previous year. It is calculated based on PeerSpot user engagement data.
File System Software Mindshare Distribution
ProductMindshare (%)
Nasuni15.9%
Cohesity SpanFS5.4%
Other78.7%
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.
ShailenderSingh1 - PeerSpot reviewer
Consultant at a tech vendor with 10,001+ employees
Unified cloud file storage has simplified global data management and reduced operational overhead
From an admin perspective, Nasuni has various valuable features. The GUI is very good, upgrading is very easy, and DFS is very easily manageable. Compared with other products, the snapshot feature is beneficial because it creates a snapshot every five minutes, allowing me to provide restores very easily to customers. Data protection is enhanced by the fact that Nasuni uses S3 technology to create snapshots every five minutes and enables versioning, so the snapshot is created and I can utilize that snapshot for disaster recovery or restore purposes. I assess the value of global file locking and caching for reducing latency as good, giving it a five out of five.

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."
"The disaster recovery capabilities are very easy because their virtual appliances are just like OVFs or images. You put in a code and it collects all the configuration from the cloud and then builds up the cache. But that doesn't preclude the device from easily being restored or recovered at short notice."
"Nasuni reduced our overall storage footprint at our sites by 70 to 80 percent."
"I like the unlimited snapshotting."
"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 is helping us replace multiple data silos and toolsets with a single global file system."
"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."
"Its dependability and auditing capabilities are very important to us to be able to maintain a chain of custody of the information."
"We use Nasuni's continuous file versioning feature and it fully protects us. With the ability to version files and have continuous recovery, it helps in terms of resiliency. If we have an incident then we would be able to easily recover from it by using the technology."
 

Cons

"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."
"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."
"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."
"There are some issues with multiple users accessing the same file simultaneously. There would be times when the global file would lock when several people tried to access it, so that could be optimized more."
"We forecasted that the data at my client's organization would grow by about ten percent annually, but we are migrating more data because we are bringing in some servers that had not previously been within the scope of our license. We expected it would take us two years to reach a specific amount of data, but we hit that mark in one year. The licensing cost skyrocketed, so we need to renegotiate. It puts us in a bind because we are reliant on Nasuni for our service strategy. We can't deny our customers, but we also struggle to pay for that."
"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."
"When we first set up our bandwidth limiting, we had a few problems when it came to managing it. This is something that could be made easier; however, we were able to make the changes that we needed to for our environment."
"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."
"I would like to see improvement in the training Nasuni provides. Compared to some of the other vendors out there, like Microsoft, where you can find how-to videos, Nasuni only has a lot of PDF documents that you have to go hunting for. It's workable, it certainly isn't a problem, but video walkthroughs would always be helpful."
 

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."
"The cost of licensing is negotiated and billed annually per terabyte."
"The pricing is fair. It's an enterprise-level solution so it's not inexpensive... The cost is pretty stable year over year."
"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."
"The cost is based on the capacity, which is approximately $100 USD per terabyte."
"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 has a license fee as well as hardware costs, which we would incur if we want to use Nasuni Cloud Storage Gateway for upgrades."
"I would not say it is economically priced, but it is affordable. If you can afford to pay for it, it is worth the money, but it is definitely not overpriced. It is priced about where it needs to be in the market. We were satisfied with the way they did their licensing and how they handled it. I believe they actually license by data size. It is based on how much data is being held on the machine and replicated, and that's completely understandable. So, for us, their pricing was as expected and affordable."
"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
11%
Manufacturing Company
10%
Construction Company
8%
Computer Software Company
8%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available
By reviewers
Company SizeCount
Small Business3
Midsize Enterprise8
Large Enterprise26
 

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 ...
 

Comparisons

 

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: November 2026.
920,769 professionals have used our research since 2012.