Cohesity SpanFS vs Nasuni comparison

Cohesity and Nasuni are both solutions in the File System Software category. Cohesity is ranked #9, while Nasuni is ranked #2 with an average rating of 8.0. Cohesity holds a 5.2% mindshare in FSS, compared to Nasuni’s 17.5% mindshare. Additionally, 100% of Nasuni users are willing to recommend the solution.

Cohesity SpanFS

Read 2 Cohesity SpanFS reviews

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444 Comparison Views

0% willing to recommend

Nasuni

Read 36 Nasuni reviews

6,447 Views
1,483 Comparison Views

100% willing to recommend

Cohesity SpanFS

Nasuni

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Executive SummaryUpdated on Aug 12, 2024

Nasuni and Cohesity SpanFS are both competitive storage solutions. Users appear happier with the pricing of Nasuni, but many feel that Cohesity SpanFS offers superior features, making it worth the higher price.

Features: Nasuni is praised for its efficient global file locking and expansive cloud support. It’s known for its cost-effectiveness. Users value Cohesity SpanFS for its robust data protection, seamless scalability, and advanced data management capabilities. Cohesity SpanFS stands out in data protection compared to Nasuni.

Room for Improvement: Nasuni users suggest enhancements in its synchronization speed and usability for large files. They seek improvements in overall product reliability. Cohesity SpanFS users seek better integration with third-party applications and enhancements in product reliability. They also desire improvements in the user interface for ease of use.

Ease of Deployment and Customer Service: Nasuni is highlighted for its straightforward deployment and responsive support team. Cohesity SpanFS, while having a more complex deployment process, is commended for its comprehensive customer support once systems are up and running. Nasuni offers an easier deployment experience whereas Cohesity SpanFS ensures thorough post-deployment support.

Pricing and ROI: Nasuni users find the setup cost reasonable and mention a satisfactory ROI. Cohesity SpanFS, while more expensive to set up, provides a higher ROI according to user reviews. Nasuni is seen as a cost-effective option whereas Cohesity SpanFS is viewed as an investment for long-term value.

To learn more, read our detailed Cohesity SpanFS vs. Nasuni Report (Updated: April 2026).

Buyer's Guide

Cohesity SpanFS vs. Nasuni

April 2026

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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

Ranking in other categories

No ranking in other categories

Nasuni

Ranking in File System Software

2nd

Average Rating

8.8

Reviews Sentiment

7.4

Number of Reviews

Ranking in other categories

NAS (10th), Cloud Migration (8th), Cloud Storage (13th), Cloud Backup (38th), Disaster Recovery (DR) Software (20th), Cloud Storage Gateways (4th)

Mindshare comparison

As of April 2026, in the File System Software category, the mindshare of Cohesity SpanFS is 5.2%, up from 3.3% compared to the previous year. The mindshare of Nasuni is 17.5%, down from 27.2% compared to the previous year. It is calculated based on PeerSpot user engagement data.

File System Software Mindshare Distribution
Product	Mindshare (%)
Nasuni	17.5%
Cohesity SpanFS	5.2%
Other	77.3%

File System Software

Featured Reviews

Stefan-Motsch

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.

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SwapnilDaga

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…

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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."

"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."

"Scalability-wise, I rate the solution a ten out of ten."

"The nice thing about Nasuni storage is that it is immutable. This means the data is only written once. So, you never modify the files. When you write a file out to the storage, it doesn't modify it when you change it. The technology knows how to figure out what the difference is between the original file write and what the changes are. Therefore, it only saves the changes."

"With Nasuni, we have been able to replace multiple data silos and toolsets with a single global file system, which is important to us because we have been able to consolidate several different products and solutions."

"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."

"This solution has done a fantastic job of meeting all our needs."

"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."

"I can't say anything other than good things about it."

"We have less downtime and fewer trouble tickets from users who cannot access their shared files. Nasuni has reduced the friction and noise associated with file management because the devices are more reliable."

"With Nasuni Management Console (NMC), we get a single, centralized view of our entire internal structure and data center structure. This is very important because this caters to remote locations. One of the main care center teams is dependent on this solution. As it is directly connected to customers for the calls that they receive and troubleshoot, they can then help customers out in case they are not able to place an order."

More Nasuni pros

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."

"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 performance monitoring could be improved."

"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."

"I would like to see them improve their tools in regards to accessing data using smartphones, tablets, and iPads."

"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."

"We've had some organizational changes that Nasuni has not been able to keep up with, mainly from a data or file system perspective. Moving a filer from one management console has been a challenge."

"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."

"The Nasuni file storage platform doesn't work well when there are a high number of small files."

"One thing to consider is that Nasuni will have the same limitations that a traditional file storage solution will have, although that is because they are taking the place of a traditional architectural model. For example, Office 365 supports collaboration on documents such as Excel files and Word documents, but because Nasuni is a traditional file server, in that sense, it can't make use of that functionality."

More Nasuni cons

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."

"The cost is based on the capacity, which is approximately $100 USD per terabyte."

"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."

"They could lower the cost, but it saves so much money when you go into it (by losing all the backup)."

"Nasuni should provide small-scale licenses, like a 20 TB license. Currently, the smallest is a 30 TB license."

"The pricing is fair. It's an enterprise-level solution so it's not inexpensive... The cost is pretty stable year over year."

"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."

"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."

More Nasuni pricing and cost advice

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Top Industries

By visitors reading reviews

No data available

Computer Software Company

12%

Financial Services Firm

11%

Construction Company

10%

Manufacturing Company

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

No data available

By reviewers
Company Size	Count
Small Business	3
Midsize Enterprise	8
Large Enterprise	24

Questions from the Community

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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 ...

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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...

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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 ...

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Compared 6% of the time

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Compared 5% of the time

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Compared 4% of the time

Veeam Data Platform vs Nasuni

Compared 3% of the time

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Product Reports

Buyer's Guide

File System Software

March 2026

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Buyer's Guide

Nasuni

April 2026

Download Nasuni product report

Also Known As

SpanFS

No data available

Overview

Designed to combine the best of enterprise and cloud stacks, SpanFS exposes industry-standard, globally distributed NFS, SMB and S3 interfaces.

The IO Engine detects random vs. sequential IO profiles, splits the data into chunks, performs deduplication and directs to the most appropriate storage tier.

SpanFS also includes a new Metadata Store based on a consistent, distributed, NoSQL store for fast operations at scale.

SnapTree® provides a distributed meta data structure based on B+ tree concepts. It supports unlimited, frequent snapshots with no performance degradation.

Cohesity

Nasuni is a file data services enterprise focused on assisting firms with their digital transformation, global expansion, and information awareness. The Nasuni File Data Platform is a suite of cloud-based services designed to enhance user productivity, ensure business continuity, provide data intelligence, offer cloud options, and simplify global infrastructure. This platform and its auxiliary services are projected to replace conventional file infrastructure such as network attached storage (NAS), backup, and Disaster Recovery (DR), with an expandable cloud-scale solution. By storing file data in scalable cloud object storage from multiple providers, Nasuni positions itself as a cloud-native alternative for traditional NAS and file server infrastructure. Based in Boston, Massachusetts, USA, Nasuni serves sectors like manufacturing, construction, technology, oil and gas, financial services, and public sector worldwide, offering its services in more than 70 countries.

Reviews from Real Users

James J., IT Manager at a marketing services firm, says Nasuni’s management dashboard is helpful because he's able to view all of the different filers at once rather than check each one of them individually. He values the software’s security, reliability, good performance, helpful alerting, and responsive support.

According to a Server Engineering Services Lead at a mining and metals company, Nasuni offers good OR and DR capabilities, performs well, offers data security, and continuous file versioning helps recover from hardware failures.

The Managing Director of IT at a construction company appreciates Nasuni because it eliminates a lot of work that was previously done when managing backing up and restoring data files.

Nasuni

Sample Customers

Tribune Media

American Standard, CBRE, Cushman & Wakefield, E*TRADE, Ithaca Energy, McLaren Construction, Morton Salt, Movado, Urban Outfitters, Western Digital

Buyer's Guide

Cohesity SpanFS vs. Nasuni

April 2026

Free Report: Cohesity SpanFS vs. Nasuni

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