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IBM FlashSystem vs NetApp AFF comparison

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Comparison Buyer's Guide

Executive SummaryUpdated on Sep 18, 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

Pure FlashArray X NVMe
Sponsored
Ranking in All-Flash Storage
14th
Average Rating
9.0
Reviews Sentiment
7.6
Number of Reviews
35
Ranking in other categories
NVMe All-Flash Storage Arrays (6th)
IBM FlashSystem
Ranking in All-Flash Storage
13th
Average Rating
8.2
Reviews Sentiment
7.0
Number of Reviews
111
Ranking in other categories
NAS (5th), Modular SAN (Storage Area Network) (2nd)
NetApp AFF
Ranking in All-Flash Storage
2nd
Average Rating
9.0
Reviews Sentiment
7.6
Number of Reviews
312
Ranking in other categories
NVMe All-Flash Storage Arrays (2nd)
 

Mindshare comparison

As of July 2025, in the All-Flash Storage category, the mindshare of Pure FlashArray X NVMe is 0.8%, up from 0.8% compared to the previous year. The mindshare of IBM FlashSystem is 6.5%, down from 6.8% compared to the previous year. The mindshare of NetApp AFF is 9.4%, down from 9.8% compared to the previous year. It is calculated based on PeerSpot user engagement data.
All-Flash Storage
 

Featured Reviews

Eugene Hemphill - PeerSpot reviewer
Helps to save money and resources with the data compression feature
One point I'd like to improve is that the tool should start selling small boxes again. It discontinued some products and is focusing on bigger, more capable boxes, neglecting the SMB market. Even though it's not a big market, it shouldn't have removed them. One way to improve the product is to add an operational assistant that doesn't depend on VMware. It could also establish more alliances with other operational systems.
OmarIsmail1 - PeerSpot reviewer
Offers high performance and dependable support for fast storage needs
The most valuable feature of IBM FlashSystem ( /products/ibm-flashsystem-reviews ) 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.
Ian Rousom - PeerSpot reviewer
Flexible with great support and high-speed multi-protocol storage
Keystone offers flexible consumption models that go beyond just how much capacity at such and such a speed, et cetera. We don't always know what the profile of that data will be. However, if we can quickly agree on terms that meet our needs and make NetApp still reasonably profitable, we can confidently deploy, see how things go and adjust. That kind of service delivery model, that customer service model has sped things up and made contract negotiations much easier. It frankly made the owners of the system more confident. We've experienced faster time to market. It's hard for us to find and retain infrastructure staff. We're in a business where the firm fixed price contract reigns supreme, and so we can't always just offer someone more money. However, if they can dedicate their time to learning one company's portfolio and learning it really well, but be useful in a bunch of different places, they will do well. We've seen that in a lot of different places. We've been able to hire younger people and retain them, moving them from program to program based on their understanding of the solution its skill set, and its portability. It's been useful for high-speed multi-protocol storage in places with ever-increasing density. We have limits on how much power and cooling and rack space we have, and yet they've delivered every time. We needed a storage company that had mastery of multi-protocol, and this solution stands out. They especially stand out as a secure provider. We require solutions that we can run ourselves, that we can air gap since so much of what we do is either classified or very sensitive or cannot live in a public ecosystem. For us, the issue consuming AI has been the trust of the models given to us by third parties. We can't necessarily trust their provenance, what fed them, what originally trained them, or what gave them their worldview, for lack of a better term. We can't simply just trust that at face value since we know nothing about where it came from or what inferences it might make. We must assume that some AI inferences were made deliberately to damage or hurt national security systems. So the models that we start with tend to be very, very primitive, crude, and not well trained, so we have to train them much longer and not always with the availability of cloud that has inexhaustible capacity. A partner who understands this and provides consistency at all scales is very important.

Quotes from Members

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

Pros

"The most valuable feature of this solution is its ease of use."
"The Pure1 component is most valuable at this point in time when comparing it with EMC. Pure1 is where you can have your diagnostics in the cloud, so you can look at things from your mobile phone."
"I appreciate the performance."
"One of the best features is the support, which is excellent."
"Technical support has been helpful and responsive."
"We are satisfied with the performance as it is significantly faster compared to traditional storage options."
"What I really like about this program, is that it is easy to use and easy to configurate."
"Pure FlashArray X NVMe has low latency and high Ops. It is an evergreen model."
"No queuing and high ops, speed, and performance."
"The solution is scalable and has varying degrees of scalability."
"The most valuable feature of the solution is SCM (Storage Class Memory), which has the lowest latency value in the storage industry."
"Speed (IOPS/second) – It is most vital for applications that need low latency and high speed for transferring the data."
"The pricing is reasonable."
"The most crucial feature of IBM FlashSystem is compression."
"The technical support for this solution is good. They used to help us when the motherboard of Power Systems broke. Their response times are really fast."
"The most valuable feature is reliability."
"The NetApp technology that has delivered the most value to our organization is FabricPool."
"The most valuable features of the solution are the software bundle, replication, and cloud connectivity."
"Supports file formatting, the main protocols, and the hot swapping of disks and features."
"AFF works well for VMware storage."
"The most important features are the IOPS and the ease of the ONTAP manageability."
"The Snapshot, SnapMirror, and SnapRestore functionalities."
"NetApp's most valuable features are ONTAP, FabricPool, and media storage."
"Other manufacturers claim simplicity. In fact, frankly, they do have an advantage in that regard, however, they don't have the functionality. If you were to compare one of those products to NetApp, head to head from a feature perspective, NetApp would wind up in the top 10."
 

Cons

"There is room for improvement in catering to midrange storage needs, especially for customers seeking Enterprise-class features."
"Efficiency improvements would always be welcome, but I'm not sure if they could get more efficient."
"The tool's pricing is higher than competitors."
"We would like to see more visibility into garbage collection and CPU performance in the GUI."
"The tool's portfolio is minimal. It is expensive."
"Managing data isn't difficult for me. The performance is usually perfect, but we sometimes have capacity problems."
"There is room for improvement in the pricing of the product."
"In terms of what needs improvement, the dashboard and management could be simplified."
"I know they have a flashcopy manager, but it is extra software, an additional license, and some customers don't like to add addition costs to their infrastructure. If IBM could create, or include snapshot management within the GUI, that would really be helpful."
"Our customers have raised concerns about the limitations of the FlashSystem 5200 and 7300, which only offer a 32-gigabyte connection."
"The GUI for monitoring performance metrics could provide better visibility. For example, it doesn't let me segregate the IOPS per volume."
"IBM could do more marketing and improve brand awareness. I had never heard of this product until a colleague told me about it. FlashSystem could add a few features, but it would probably increase the price. For example, Pure Storage offers instant snapshotting and partitioning. That would be nice to have, but I think the cost would go up."
"Customization features must be improved."
"The data reduction pool feature sucks and is not recommended for use with heavy workloads."
"The solution is not able to replicate data in one-to-many scenario."
"The solution has a low number of NVME host attachments at 16 per IO group over the fiber channel."
"I honestly don't have anything of note on how they can improve."
"We'd like to see them implement more subscription services into the base support model."
"There are no RDMA capabilities in CIFS (SMB) and NFS protocols."
"It would be better if they just improved the performance of the system."
"The admin tools and the integration with other products and clouds can be improved. It should also be easier to identify and troubleshoot problems in this solution. It takes a long time, and it should be improved."
"It would be nice to have better integration between SRM and VMware, as I've had some issues with that."
"The total cost of ownership has increased a little."
"We would like to have a feature that automatically moves volumes between aggregates, based on the performance. We normally need to do this manually."
 

Pricing and Cost Advice

"The product is expensive."
"Pretty much everything that you need is licensed when you buy the product. Licensing to me is different than the maintenance cost, but they can bleed into one another. We buy the product, and we expect three years of support bundled into what we negotiate on our storage arrays. I would start to see maintenance costs going into the fourth year, but we're not there yet."
"We pay approximately $50,000 USD per year in licensing fees."
"Our licensing fees are $500,000+ USD."
"The licensing is on a yearly basis."
"They can tout the functionality and cutting edge technology that they have, but that's where the price tag comes in. The cost is high, but I think as they grow their business and get more customers that it will probably go down a little bit."
"Given its price, Pure is not the first option."
"The support cost per array is about $20,000 a year for 24/7 support."
"My customers got the IBM FlashSystem bundle offer. It was a one-time purchase for three years of service. The price would depend on the storage size and could reach between $25,000 to $55,000."
"They've been much more aggressive in the last five, six years than they were before that."
"The pricing may be a bit higher than other brands. If you compare the IBM FlashSystems in midrange with Dell EMC in midrange, IBM costs a bit more, but I prefer IBM because it has more specs that I can benefit from."
"The integration is already included in the license cost of IBM FlashSystem. The integration is very easy. You get the IBM storage core with all software, firmware, and upgrades. EMC provides the features in the box, but they are not free for customers. There is a licensing cost for features. We have yearly licensing, but IBM has also provided a new option where you pay as you go. They provide a big box, and I pay, for example, for 10 terabytes. If I exceed 10 terabytes, IBM will charge for the new storage after 10 terabytes. It is a good opportunity in the market for using the storage as a cloud and paying as you go."
"The tool is cost-efficient."
"It pays to go back and get the best price you can from your supplier. The first offer is not always at the best discount."
"The pricing is competitive in our country."
"The price is a little bit high so is rated a six out of ten."
"In addition to simplifying the management across a mix of solutions, AFF simplifies the cost. That was one of the main reasons we purchased AFF."
"Our space savings through dedupe and compression is over 50 percent, so we are saving. I think our 8080s has 20TBs. We are saving at least 10TBs and that's over 50 percent of the capacity that we're using."
"I looked at other vendors for other potential projects and thought NetApp's pricing was very competitive."
"Disk level encryption is already in the solution, but it is very costly. Its pricing should come down."
"We would like it to be free."
"NetApp AFF is somewhat pricey. If they weren't as pricey, that would be a big deal for us."
"One of the reasons we like this solution is that all of the features are included with the one license."
"Our TCO decreased significantly because we were paying maintenance on nine different arrays throughout the country. We've condensed those down to three arrays, and our maintenance fees from the IBM product dropped by over a half million dollars a year, saving us $500,000 USD."
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Comparison Review

it_user186357 - PeerSpot reviewer
Jan 28, 2015
NetApp vs. XtremIO
Is there another storage platform as feature rich as NetApp FAS? I think it is fair to say that NetApp FAS running Clustered Data ONTAP is a very feature rich platform – the move to the clustered version of ONTAP has brought many next-generation features including Scale-out and Non-disruptive…
 

Top Industries

By visitors reading reviews
Computer Software Company
15%
Financial Services Firm
11%
Manufacturing Company
10%
Government
6%
Computer Software Company
14%
Financial Services Firm
11%
Manufacturing Company
9%
Comms Service Provider
7%
Educational Organization
33%
Computer Software Company
12%
Manufacturing Company
11%
Financial Services Firm
6%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
 

Questions from the Community

What do you like most about Pure FlashArray X NVMe?
Pure FlashArray X NVMe helps to improve our processing speed. It is user-friendly and easy to use.
What needs improvement with Pure FlashArray X NVMe?
Adding some functions to the product would be beneficial. Storage replication should be essential, and the analytics ...
What is your experience regarding pricing and costs for IBM FlashSystem?
Many factors affect purchasing directly from IBM, often involving a multi-step process. Customers, especially in bank...
What needs improvement with IBM FlashSystem?
The deduplication technology in IBM FlashSystem needs significant improvement. Other vendors like NetApp ( /products/...
What is the Biggest Difference Between Dell EMC Unity and NetApp AFF?
Well, Is one thing NetApp Storage has vs other brand is the mix of protocol CIFS with NFS booth working together in t...
What is the Biggest Difference Between Dell EMC Unity and NetApp AFF?
This question is very dependent on your requirements. Both are among the best in the field. Of course, the intended c...
What is the Biggest Difference Between Dell EMC Unity and NetApp AFF?
The answer depends on your needs and budget. If you want high performance (who doesn't) or let's say the latency matt...
 

Also Known As

Pure FlashArray//X NVMe, Pure FlashArray//X, FlashArray//X
IBM Storwize
NetApp All Flash FAS, NetApp AFF, NetApp Flash FAS
 

Overview

 

Sample Customers

Fremont Bank, Judson ISD, The Nielsen Company
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
DreamWorks Animation, FICO, Yahoo! Japan
Find out what your peers are saying about IBM FlashSystem vs. NetApp AFF and other solutions. Updated: June 2025.
860,632 professionals have used our research since 2012.