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FreeNAS vs IBM FlashSystem comparison

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Comparison Buyer's Guide

Executive SummaryUpdated on Jun 3, 2026

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

FreeNAS
Ranking in NAS
14th
Average Rating
8.4
Reviews Sentiment
7.2
Number of Reviews
9
Ranking in other categories
No ranking in other categories
IBM FlashSystem
Ranking in NAS
7th
Average Rating
8.2
Reviews Sentiment
6.9
Number of Reviews
113
Ranking in other categories
Modular SAN (Storage Area Network) (3rd), All-Flash Storage (11th)
 

Mindshare comparison

As of September 2026, in the NAS category, the mindshare of FreeNAS is 3.9%, up from 2.0% compared to the previous year. The mindshare of IBM FlashSystem is 5.5%, down from 11.4% compared to the previous year. It is calculated based on PeerSpot user engagement data.
NAS Mindshare Distribution
ProductMindshare (%)
IBM FlashSystem5.5%
FreeNAS3.9%
Other90.6%
NAS
 

Featured Reviews

Vincenzo D'Aniello - PeerSpot reviewer
Software developer at TREXON S.R.L.
Open-source with great disk management and task synchronization
The system itself allows you to add any feature. The only bad thing is that this maybe depends on FreeBSD, and sometimes finding documentation is difficult. For example, we knew that previous versions automatically enabled the Linux kernel, yet with the recent version, this was no longer the case. Now, there was the possibility of being able to create Debian-based jails, and finding the documentation was not easy or fast. That said, in the end, we succeeded. If you find the documentation, it is always incomplete and fragmented.
OmarIsmail1 - PeerSpot reviewer
Infrastructure Technical Specialist II at Clicks Group
Offers high performance and dependable support for fast storage needs
The most valuable feature of IBM FlashSystem is its robust back code. When integrated properly into the environment and configured according to the guidelines, it provides a very solid infrastructure that does the job on demand. Additionally, IBM FlashSystem offers competitive pricing and reliable performance. The hardware is dependable, ensuring that it functions effectively when the setup is done correctly.

Quotes from Members

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

Pros

"What I like about it is that I can work on it from any computer or any device. The initial setup is very simple. The setup wizard is really helpful."
"FreeNAS is much simpler and easier to use than other solutions, but we don't have the complete range of features that come with the full version."
"The ease of use of the 'jail', the management of backups, and copies to easily create test and pre-production scenarios have speeded up the development and distribution of business apps."
"The stability is quite good; our system is in production and we have not had any problems with it, and when a drive fails, we don't really have any disruption because we can easily rebuild the disk, even if it is very large."
"It integrates well into either Windows or Linux environments."
"Its stability is the most valuable. It is reliable, and we don't have to worry too much about it."
"The program is fast, fun to work on and easy."
"It has the best storage capacity."
"The ability to create LUNs and modify them are the most valuable features of this solution."
"If you have the funds and you require speed, this product is the answer."
"The performance of the All-Flash System is very good. There is more enhanced performance and data production in the solution, which I appreciate."
"It's very easy to manage."
"IBM FlashSystem is flexible, quick, and has a solid design."
"Biggest return is the easy migration and upgrade path as well as the scalability options, with IBM adding compression and deduplication in its portfolio, as well as garbage collection and space reclamation."
"The speed, performance, and stability are the best features of IBM FlashSystem."
"Our automatic banking systems have become twice as quick with flash storage."
 

Cons

"If you find the documentation, it is always incomplete and fragmented."
"The latest version of the dashboard doesn't work as good as the previous version. Sometimes we change our dashboard back to the previous version because the latest version just doesn't work as good."
"The one thing that I find difficult to do which is very time-consuming is that I like to have a backup of the important files."
"FreeNAS should be better prepared for clustering."
"They can improve the integration with PSA systems. This functionality could be better."
"One of my hard drives has failed and the documentation that I've been able to find has not helped."
"The support for S3 needs to be improved."
"Its support for Hyper-V clusters."
"The cluster should be improved because non-disruptive failover was supported only on a few operating systems."
"One area for improvement is in the GUI, where host clusters are not properly dealt with."
"A big area for improvement is that the data reduction pool feature is not recommended for use in a production environment because it has stability and performance issues."
"The interface could improve in IBM FlashSystem."
"GUI interface should be enhanced more as there is some issues in copy services GUI interfaces should be enhanced as this will not let the customer doing wrong configurations"
"AHV is Acropolis Hypervisor – A relatively new Hypervisor, robust and stable as VMware vSphere, has built-in advanced analytics and powerful operations, Self Service Portal and components for DevOps included, managed by a single pane of glass (Prism) via HTML5 and it is free of charge – That is why Nutanix is so advanced and revolutionary."
"Support response times are bad."
"There is room for improvement in the troubleshooting part, specifically related to IBM Spectrum for Insight. Customers are uncomfortable with remote access, which affects automated remote support."
 

Pricing and Cost Advice

"For our configuration, we pay a little bit less than €10,000 ($12,000 USD) per year."
"Its price is okay. It suits our needs."
"Its licensing cost is based on the hardware capacity."
"We use the free version of the program."
"The solution has good pricing, but it is not cheaper."
"I price of IBM FlashSystem is reasonable and competitive."
"The price depends of the technology that our customers need. The price can come at a lower cost but this may increase as storage is added."
"The cost is pretty high in terms of licensing. We pay at least $100,000 USD in licensing fees for the storage."
"Regarding licensing make sure you add at least three years software maintenance from IBM at the beginning, because you will not be able to download firmware updates or any fixes/patches without this."
"For a yearly license, it is about $100,000. There are no additional costs. The entire system is included."
"The price of IBM FlashSystem is reasonable."
"The solution requires a license and could be less expensive."
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Top Industries

By visitors reading reviews
Comms Service Provider
18%
Performing Arts
10%
Manufacturing Company
9%
Healthcare Company
8%
Financial Services Firm
12%
Outsourcing Company
10%
Comms Service Provider
8%
Computer Software Company
8%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business7
Large Enterprise2
By reviewers
Company SizeCount
Small Business47
Midsize Enterprise21
Large Enterprise60
 

Questions from the Community

Ask a question
Earn 20 points
What is your experience regarding pricing and costs for IBM FlashSystem?
The pricing is high; storage solutions are always expensive. I do not know if the price needs to be reviewed, but it is worth considering.
What needs improvement with IBM FlashSystem?
As far as I know, IBM FlashSystem has already improved, but I do not see room for improvement. It is simple to use and manage via SVC, simple to configure, and even for the zoning, I do not see imp...
What is your primary use case for IBM FlashSystem?
We are not working with Object Storage or Storage Protect; we are working with SAN storage and LUN storage. I am a consultant assigned to a customer in France. We are working with SVC in regard to ...
 

Also Known As

No data available
IBM Storwize
 

Overview

 

Sample Customers

Morroni Technologies Inc., Creative Integrations
Celero, Friedhelm Loh Group, Clarks, Mingkang Natregro Health Food Group, Sofia, Etisalat Fights Fraud, UF Health Shands Hospital, Generali, Elecon Engineering Company Limited, Ventiv , Technology, CPFL Energia, Royal Caribbean Cruises Ltd., SciQuest, Coca-Cola Bottling Co. Consolidated, Paddy Power, Kelsey-Seybold Clinic, Interconnect Services, Severstal IP-Only AB, PVU Group GmbH
Find out what your peers are saying about FreeNAS vs. IBM FlashSystem and other solutions. Updated: September 2026.
913,683 professionals have used our research since 2012.