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IBM FlashSystem 9100 NVMe vs NetApp AFF C-Series comparison

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Comparison Buyer's Guide

Executive Summary

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

Everpure FlashArray
Sponsored
Ranking in All-Flash Storage
3rd
Average Rating
9.0
Reviews Sentiment
7.2
Number of Reviews
232
Ranking in other categories
No ranking in other categories
IBM FlashSystem 9100 NVMe
Ranking in All-Flash Storage
26th
Average Rating
8.6
Reviews Sentiment
7.5
Number of Reviews
22
Ranking in other categories
NVMe All-Flash Storage Arrays (13th)
NetApp AFF C-Series
Ranking in All-Flash Storage
27th
Average Rating
8.6
Reviews Sentiment
3.6
Number of Reviews
2
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of October 2026, in the All-Flash Storage category, the mindshare of Everpure FlashArray is 6.6%, up from 6.4% compared to the previous year. The mindshare of IBM FlashSystem 9100 NVMe is 1.3%, up from 0.5% compared to the previous year. The mindshare of NetApp AFF C-Series is 0.8%, up from 0.4% compared to the previous year. It is calculated based on PeerSpot user engagement data.
All-Flash Storage Mindshare Distribution
ProductMindshare (%)
Everpure FlashArray6.6%
IBM FlashSystem 9100 NVMe1.3%
NetApp AFF C-Series0.8%
Other91.3%
All-Flash Storage
 

Featured Reviews

Sowjanya MV - PeerSpot reviewer
Technical Lead at Wipro Limited
Has improved performance for mission-critical workloads and enabled seamless non-disruptive upgrades
The availability is 99.99%, which is the main factor any customer would need because their data should be available whenever they want to access it. This is one main critical thing. It is very easy to upgrade since Pure Storage FlashArray handles it well. Everything is non-disruptive now; previously, there were forklift shifts, but now that is not the case. Pure Storage FlashArray says no to forklift upgrades. Usually hardware requires downtime, but Pure Storage FlashArray has improved their footprint so that they are not asking for downtime; everything is just a non-disruptive activity, which is why customers are more inclined towards Pure Storage FlashArray. Customers want more of the models in their environment due to the performance they are giving, and everything is in one Pure1 Array console where we can view all the models on one page or just an orchestration tool. You don't miss anything; you have replication, notifications about replication, and details about which host groups replication is happening in and if that replication is successful or failed. On a daily basis, our purpose is to create volumes for infrastructure; our daily activities include creating volumes and mapping them to the host, doing any migrations from a VM, clearing the data stores, and carving the volumes to those VMs. One key factor is the data compression with a ratio of 5:1, focusing on space efficiency, inline deduplication, and the compression Pure Storage FlashArray works on; that is a major factor we can suggest to any customer. Analytical capabilities are crucial. Daily, we check the throughput and consumption, and Pure Storage FlashArray provides predictions for one year regarding usage. This prediction helps plan updates well ahead. For support, we just raise a case, and they follow up and get it done. There is also AI readiness, but with the model R2, we don't have much of that AI readiness. For others, we do have AI readiness that predicts capacity based on daily or monthly trends, enabling us to analyze how much space we need or if we need to expand the disk shelf. From an operational point of view, a good feature is that if you accidentally delete a volume, it will be retained in the destroyed state for the next twenty-four hours, which is not the same with any other vendor. I have worked in this storage domain for the past fifteen years, and this option is remarkable, benefiting any L1 or L2 engineer. Additionally, from a compliance perspective, Pure Storage FlashArray has REST APIs enabled. I have not explored automation much, but from a security standpoint, it is strong with encryption data. If you want to automate, you can easily integrate with all clouds and explore Pure Cloud for scheduling workloads, including volume creation. Customers find benefit in Pure Storage FlashArray's single management pane of glass due to the dual controller and active-active setup. If one of the controllers goes down, all workloads automatically shift to the other controller, ensuring their data is safe and accessible at all times. This is a highlighted feature that any customer desires because their data should always be accessible. For SAN workloads, we use Pure Storage FlashArray because for SAN FC fiber channel, we don't use it; we use NetApp for NAS activities. We have clearly split this, so SAN is for mission-critical applications, while network-attached storage handles file systems. This architecture helps us maximize the benefit from Pure Storage FlashArray due to the significant workloads from this giant retail client. From a footprint and energy consumption perspective, you can see energy consumption from the Pure1 storage portal on a daily basis, and it is very compact. The three models we use consume only three units, which is quite low. From a footprint and data center perspective, it doesn't occupy much space. As everything moves to cloud, there are requirements to avoid excess spending on data centers, and Pure Storage FlashArray is efficient in energy consumption and is environmentally friendly.
Yacine Bouakttaya - PeerSpot reviewer
Chief Technology Officer North Africa at Huawei
High-speed data processing has improved billing cycles but performance headroom still needs growth
In terms of improvement regarding IBM FlashSystem 9100 NVMe, I can compare with other competitors, especially regarding solution architecture. Data resiliency can be a concern because IBM can reach up to only four controllers, while others like Dell EMC can support up to eight controllers with better resiliency without service staff. Additionally, the SBC one benchmark is a storage performance console that stresses different storage solutions like Dell EMC and NetApp. It generates metrics of IOPS and latency, showing that the competition can have two million IOPS, significantly outperforming IBM's capabilities. As for the capability of scaling, we can see the limitations in reaching such high-performance levels.
Shailendra Choudhary - PeerSpot reviewer
Solution Architect at a tech services company with 10,001+ employees
Reliable flash storage has delivered strong data reduction and secured sensitive information
There is still some room for improvement when it comes to scalability, mainly in the interoperability and integration aspects. Every storage vendor has certain limitations, and this is not limited to NetApp; it applies to everyone in the industry. I do not see any other significant areas for improvement with NetApp AFF C-Series at this time. NetApp is working on their roadmap, which is solid, and they are developing certain features that are yet to be released.

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 features are the ease of use and support."
"We chose Pure Storage primarily because of its combination of performance and ease of use."
"Data reduction and compression. Sub millisecond latency."
"Pure Storage is seen as a visionary company with leading edge technology."
"It helps us maintain uptime much better than other solutions we've used in the past, and the support is extremely quick and responsive."
"Cost, racial per terabyte, and speed is why we chose PureStorage. It was no brainer."
"Cuts VM deployment down to seconds and cuts latency under MS with amazing performance and very stable operation with no worries about how much it can handle."
"We like the speed. It's very low latency. In virtualization, you can mask lots of problems, and even in code you can mask lots of problems, with low latency. It's just pure speed and low latency."
"The product is a game-changer; IBM changed the game architecturally by moving computational resources into the flash media."
"The most valuable feature of IBM FlashSystem 9100 NVMe is the snapshot. We use it daily for all of the storage units."
"The storage serves the virtual environment. Most of our applications run in the virtual environment, and it serves nearly 30% of the bank's capacity."
"The features I find most valuable include its use for storage and performance."
"A key feature is that compared to storage systems that we've been familiar with over decades, IBM simply does not fail. The reason is that IBM is the only manufacturer that engineers its own flash module, and there is a key architectural difference from everything else that we have seen in the market. The difference is that the flash module has the computational capability, which allows reliability and capacity enhancements to be uploaded from the main controllers and run in each module. So, each of the flash drives becomes its own little storage system, and that is extremely effective architecture. In this field, with this type of system, IBM has made a statement. They've never had one of these modules cause an outage. So, the failure rates on these things are just in a whole different universe from what we were accustomed to."
"The most valuable feature is the speed."
"It's easy to use, has good stability, and many features."
"The most valuable features of IBM FlashSystem 9100 NVMe are its steady performance and usefulness in high-traffic environments."
"NetApp AFF C-Series is a good product for entry-level flash storage, the system is competitive in terms of pricing, and the value proposition is strong."
"NetApp offers a cost-effective solution with very robust hardware."
 

Cons

"It was a little costly."
"The product should improve its response time. I have also encountered issues with its configuration."
"We had one instance with an eight-hour outage in our primary data center because the upgrade to the controller failed, and the controller redundancy didn't work."
"When creating a support case, visibility should be extended to others involved in assisting."
"I feel like there is too much automation; the user doesn't have any manual input."
"I like what they're doing, but some of my customers complain that they do not have all the bells and whistles and knobs to fine-tune workloads that some of the competitors have. In my opinion, that's good. All customers don't have dedicated storage gurus, and they can get themselves into trouble if they fine-tune too many of those high-performance knobs, but they do get knocked down. Pure Storage takes a hit in the minds and opinions of some of the customers because they cannot customize things as much as compared to a legacy storage provider's appliance such as NetApp, Dell EMC, or even HPE. I personally think 95% of my customers are better off letting the system fine-tune itself. That was something that you needed to do 12 or 15 years ago, but now with all-flash, the technology can handle what it needs to handle. Customers just end up shooting themselves in the foot if they are tweaking too many default settings."
"One improvement area is the eradication time delay."
"The price of the Pure Storage Flash Array is too high and there needs to be more contract clarity."
"In the future, the limitation is upgrading the same storage by adding a shelf to the desk. There is a limitation in the backend connection between the storage and extended shelf."
"IBM is currently not offering volume-based encryption or compression, while other brands or IBM's competitors are doing it."
"IBM FlashSystem 9100 NVMe is currently at the end of its lifespan and will soon become obsolete in the markets."
"In the FlashSystem 5200, there were only four ports of 32 fiber channels for the architecture. This has been resolved in the new generation."
"In terms of improvement regarding IBM FlashSystem 9100 NVMe, I can compare with other competitors, especially regarding solution architecture."
"We're not satisfied with the deduplication and compression for our volumes."
"The pricing should be more competitive."
"Deduplication and compression should be improved."
"We faced one bug that impacted our NetApp last month, and it took some time to identify the underlying issue."
"There is still some room for improvement when it comes to scalability, mainly in the interoperability and integration aspects."
 

Pricing and Cost Advice

"FlashArray is expensive, but the quality justifies the price."
"While more expensive than NetApp, Pure Storage FlashArray offers superior performance that often justifies the higher cost and adds value overall."
"You get what you pay for. It is expensive, but it really works."
"Pure Storage is all-flash, so this sometimes tends to make it a bit more expensive in the beginning."
"It's expensive, but you get what you pay for."
"Pure Storage FlashArray's pricing is very competitive."
"I'm good with the licensing. Of course, pricing can always be less... It's actually not a bad pricing model, considering I don't have to rip-and-replace."
"Cost-wise, I imagine that the product's price would probably give you a nosebleed if you were a younger company."
"The price of the FlashSystem 9100 NVMe is reasonable."
"The solution is priced well."
"The price of IBM FlashSystem 9100 NVMe is less than Dell. For upgrades, the Dell solutions are more expensive."
"The price of IBM FlashSystem 9100 NVMele can be considered affordable when taking into account the operating system that is required for it to function properly. This operating system, which is licensed by IBM, may carry a higher cost, but it is worth the investment for larger corporate entities, such as insurance companies, Fortune Five companies, and banks, who make up a significant portion of their target market. The FlashSystems are designed for larger corporations and multinational enterprises, and may not be the most cost-effective solution for smaller businesses."
"It's a lot less costly than cloud storage. People get surprised by the cost of cloud storage, which is extremely expensive and four or five times the cost of storage on-premises. People don't realize what they're spending on storage until they start getting bills from Amazon, Microsoft, and others. This is a good way to reduce your cloud storage expenses."
"Compared to other solutions, the cost of IBM FlashSystem 9100 NVMe is reasonable, with a one-time payment of around $70,000. However, additional support is available for $25,000 for three years. The overall maintenance cost is steep."
"On a scale of one to ten, where one is a low price and ten is a high price, I rate the pricing an eight."
"The product has an average cost."
Information not available
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Top Industries

By visitors reading reviews
Manufacturing Company
13%
Financial Services Firm
10%
Comms Service Provider
9%
Construction Company
9%
Outsourcing Company
13%
Financial Services Firm
13%
Manufacturing Company
10%
Marketing Services Firm
7%
Manufacturing Company
21%
Financial Services Firm
13%
Outsourcing Company
9%
University
6%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business73
Midsize Enterprise38
Large Enterprise160
By reviewers
Company SizeCount
Small Business10
Midsize Enterprise6
Large Enterprise6
No data available
 

Questions from the Community

Which should I choose: HPE 3PAR StoreServ or Hitachi Virtual Storage Platform F Series?
Both are great platforms, but if you are considering all flash solutions, I would recommend you to consider Pure Stor...
What is your experience regarding pricing and costs for Pure Storage FlashArray?
I find the pricing of Everpure FlashArray to be quite high compared to other storage solutions; however, the reliabil...
What needs improvement with Pure Storage FlashArray?
I believe we have covered the most important features; the architecture of Pure Storage is essential, and features su...
What is your experience regarding pricing and costs for IBM FlashSystem 9100 NVMe?
The licensing cost for IBM FlashSystem 9100 NVMe can be seen as a bit expensive compared to competitors. You can eith...
What needs improvement with IBM FlashSystem 9100 NVMe?
In terms of improvement regarding IBM FlashSystem 9100 NVMe, I can compare with other competitors, especially regardi...
What is your primary use case for IBM FlashSystem 9100 NVMe?
There are many advantages that we have with IBM FlashSystem 9100 NVMe against, for example, IBM full flash systems an...
What needs improvement with NetApp AFF C-Series?
There is still some room for improvement when it comes to scalability, mainly in the interoperability and integration...
What is your primary use case for NetApp AFF C-Series?
I would recommend NetApp AFF C-Series for various types of companies depending on the use case. A small company, an e...
What advice do you have for others considering NetApp AFF C-Series?
I recommend Dell PowerStore to some of my customers, but usually the differences are taken care of. I focus primarily...
 

Also Known As

Pure Storage FlashArray
IBM FlashSystem 9100, FlashSystem 9100
No data available
 

Overview

 

Sample Customers

Nielsen, Lamar Advertising, LinkedIn, Betfair, UT-Dallas
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Find out what your peers are saying about IBM FlashSystem 9100 NVMe vs. NetApp AFF C-Series and other solutions. Updated: September 2026.
915,341 professionals have used our research since 2012.