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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
7.4
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.
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

"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."
"It has snapshot capabilities. We take advantage of those."
"Scalability-wise, I rate the solution a ten out of ten."
"The ability to access anywhere, the ease of deployment, and the security are the most valuable features."
"Nasuni has replaced multiple data silos and toolsets with a single, global file system."
"The Nasuni management dashboard is helpful because, on the administration side, I'm able to view all of the different filers that we have in the UK, rather than check each one of them individually."
"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."
"Using this solution has helped us to reduce the time it takes to recover data in the event of a disaster, lower our cost of operations, reduce our workload, and our savings through using Nasuni is approximately 35%."
"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."
"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."
"The features I find most valuable in Nasuni are the unlimited snapshots, antivirus capabilities, auditing, and ransomware protection."
 

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."
"There have been small shortcomings with support so it isn't perfect, although I don't think that any supplier I have dealt with has support that I would rate a ten out of ten."
"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."
"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."
"Part of the problem seems to be that Nasuni currently is not set up to do 24/7 support; they said that they were going to do that, so that was a little disappointing."
"When users from one office save their changes, their peers in another office can see the changes within minutes. Of course, this is an area for constant improvement and we hope that they can still reduce the amount of time it takes to replicate changes."
"The performance of the filesystem could be improved."
"The performance monitoring could be improved."
"The Nasuni file storage platform doesn't work well when there are a high number of small files."
 

Pricing and Cost Advice

"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."
"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."
"It's cheaper than a lot of alternatives but it's not cheap."
"The pricing is on par with everybody else, and fair."
"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."
"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."
"They could lower the cost, but it saves so much money when you go into it (by losing all the backup)."
"The cost is based on the capacity, which is approximately $100 USD per terabyte."
"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."
"There are annual costs that we pay for maintaining all of the snapshot history in the cloud. That is the primary cost that we pay. We occasionally buy newer Nasuni appliances or deploy them to new offices when the need occurs. That capital equipment expenses is less than the cost of buying new file storage systems. For the most part, you are trading a CapEx cost of storage equipment for an OpEx cost for management of all the snapshot data in the cloud."
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Top Industries

By visitors reading reviews
No data available
Financial Services Firm
11%
Manufacturing Company
9%
Construction Company
8%
Computer Software Company
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available
By reviewers
Company SizeCount
Small Business3
Midsize Enterprise8
Large Enterprise25
 

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.
920,043 professionals have used our research since 2012.