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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

"It's helped us because we've changed fundamentally what we talk about. We don't talk about storage and different tiers of storage anymore nor do we talk about servers. We talk now about applications and how applications impact the business and end users."
"Pure FlashArray X NVMe helps to improve our processing speed. It is user-friendly and easy to use."
"The solution uses newer technology for deduplication and compression."
"The high availability of the product is the most valuable feature."
"We are satisfied with the performance as it is significantly faster compared to traditional storage options."
"It has good, reliable, fast storage."
"The solution is scalable."
"Everything, especially the VMs inside, is pretty fast."
"The price-performance ratio is most valuable."
"The most valuable features are, of course, the virtualization of the storage, the performance, and the compression."
"The FlashSystem 900 consistently delivers performance below 1ms for read/write. This performance is essential for an effective SVC stretch-cluster configuration across two datacenters, and presenting active-active storage to the customer."
"Over the years, it has become increasingly user-friendly."
"Data deduplication is one of the most valuable features of this solution."
"IBM FlashSystem is a powerful effective storage solution. Additionally, it is user-friendly, anyone can use it."
"The most valuable features were the performance of the array, i.e., very low latency and high IOPS. Plus, the management interface is very easy to use."
"The all-flash storage has tier replication capabilities."
"We value NetApp's ransomware protection the most."
"The design has been great."
"With the new version, they have the FabricPool which works for me. I can extend the hyperscaler storage."
"Using System Manager for green management or command line interface, we have a single point for managing the cluster. It is much easier to manage. It is very seamless. The product is robust and solid."
"The cloning and snapshot features are the most valuable. With snapshot backup, we can clone a big database in minutes. We take a lot of snapshots for clients in different environments."
"The tool has lowered latency."
"The Active IQ feature is a productive mechanism that automatically collects reports and users' statuses."
"In terms of the footprint, it is far more efficient. It has smaller, higher-capacity drives than our older unit. In terms of space, power, and cooling, it has simplified things."
 

Cons

"It's more multi-tenant functionality in their Pure1 manage portal that is lacking."
"I would like to see replication and DR features in the next release of this solution."
"The tool's pricing is higher than competitors."
"It is on the expensive side."
"We would like to see more visibility into garbage collection and CPU performance in the GUI."
"We've seen that when we create a POD in synchronous mode, it increases the latency."
"I'd like to see the product implement active replication for vehicles such as VMware."
"We need better data deduplication."
"The design is a little old-fashioned and could be updated. The rack is very primitive and designed in an older style."
"I would like to have a larger disk. Right now, you can get 57 terabytes in a shelf. Once they get the larger disk and you get larger capacities, it'll be even better."
"There could be some extra features added."
"The interface of this solution could be improved."
"The installation is not easy. You need to have extensive knowledge to handle it."
"Enterprise data storage needs improvement. They should create a feature for data and file storage."
"The customer's expectations are what they get on the cloud, they're expecting even in the on-premises deployments, going forward."
"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."
"We have had issues with CIFS presentations and outages, so if that was removed, we could do seamless upgrades without affecting CIFS presentations. That would be an advantage. That's about the only improvement I can think of."
"Sometimes, NetApp support could be better. When the customers escalate, it can feel like everything's starting from scratch. These are rare cases. I'm not directly involved in support, but that's what I hear when something doesn't work."
"The ONTAP APIs are good, but little things here and there are slightly different, so I had to program something to catch a different error case or something like that. That adds a little work on my end, but it's ultimately been pretty easy to work with. It's just the consistency of the REST API. About, 95 percent of the operations working with the REST API are great, but then you have about 5 percent of things that are slightly different."
"We have had customers asking about S3 support for a while now. I heard that is coming in one of the next versions. So, I would like to see S3 targeted support on the FAS system."
"I come tech support with difficulty because I installed NetApp for many years I know what to expect when I call. When I don't get their support tech that I'm expecting and I'm trying to get to the right one, it can get very frustrating for me personally, trying to all-flash push my way into the right person. NetApp has the right people, it's just a matter of getting to them."
"Offering the ability to actively write data on a single volume spanning multiple clusters is significant."
"It would be nice to have better integration between SRM and VMware, as I've had some issues with that."
"FC and ATTO bridges are still needed for cross datacenter replication."
 

Pricing and Cost Advice

"The support cost per array is about $20,000 a year for 24/7 support."
"The tool is an investment that we've budgeted for. While the prices may be higher than those of other vendors, we see it as a market leader with benefits. We don't regret purchasing it."
"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."
"The licensing is on a yearly basis."
"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."
"With VMware, we pay $300,000 annually."
"The product is expensive."
"Our licensing fees are $500,000+ USD."
"I price of IBM FlashSystem is reasonable and competitive."
"The cost is pretty high in terms of licensing. We pay at least $100,000 USD in licensing fees for the storage."
"They've been much more aggressive in the last five, six years than they were before that."
"The solution requires a license and could be less expensive."
"The pricing is competitive in our country."
"This is an expensive product and if the price were reduced it would be better."
"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."
"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."
"I looked at other vendors for other potential projects and thought NetApp's pricing was very competitive."
"The total cost of ownership has decreased a great deal. As far as percentages, it's hard to gauge, but we did have quite a few personnel staying up, making sure batches ran well every night. Now, batches are being done by 8:00 in the evening, so we don't have to do that anymore. When you start adding the employee hours that we have for people working in the off-hours, and it is not an issue anymore, I suspect TCO might have gone down 25 percent."
"You need to be careful with the licensing since it can become expensive."
"The price of NetApp is very expensive, but we don't know how much Pure is, so we can't compare."
"NetApp AFF is somewhat pricey. If they weren't as pricey, that would be a big deal for us."
"I would like the pricing to be cheaper."
"NetApp AFF is an expensive solution."
"NetApp is getting too expensive."
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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.
860,168 professionals have used our research since 2012.