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IBM FlashSystem vs Qumulo comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Nov 7, 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

IBM FlashSystem
Ranking in NAS
6th
Average Rating
8.2
Reviews Sentiment
6.9
Number of Reviews
112
Ranking in other categories
Modular SAN (Storage Area Network) (3rd), All-Flash Storage (13th)
Qumulo
Ranking in NAS
11th
Average Rating
7.8
Reviews Sentiment
7.3
Number of Reviews
8
Ranking in other categories
File and Object Storage (21st)
 

Mindshare comparison

As of November 2025, in the NAS category, the mindshare of IBM FlashSystem is 10.3%, down from 13.7% compared to the previous year. The mindshare of Qumulo is 6.1%, down from 6.3% compared to the previous year. It is calculated based on PeerSpot user engagement data.
NAS Market Share Distribution
ProductMarket Share (%)
IBM FlashSystem10.3%
Qumulo6.1%
Other83.6%
NAS
 

Featured Reviews

OmarIsmail1 - PeerSpot reviewer
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.
VinceVitro - PeerSpot reviewer
Useful data sharing, simple cluster scaling, and excellent support
One aspect of Qumulo that I hoped to see improved was its software upgrade process, which did see significant progress during my usage. Initially, upgrading the software resulted in several minutes of system downtime. However, by the time I departed last summer, the downtime had reduced to mere ten seconds. Although I am unsure if Qumulo has yet achieved a completely outage-free upgrade, I simply performed the upgrades early in the morning before the marketing department began its workday, so any downtime was inconsequential.

Quotes from Members

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

Pros

"The valuable features for us are the extra add-ons, such as the FIM provisioning, the compression, the disaster recovery capabilities, and the storage pooling functions."
"The most valuable feature is that is supports a high IOPS rate."
"The most valuable features are deduplication and compression, which together, enable you to have more space."
"We've found the solution to be very stable so far."
"The most valuable features in IBM FlashSystem are IOPS, performance, duplication, and compression."
"The Flash core models offer amazing performance."
"This solution is really user friendly. It also offers good performance and is highly reliable."
"The valuable features are high availability, compression, and a failover mechanism. It's a very highly available storage solution."
"The most valuable feature of Qumulo is the ability to share files and reliability."
"The most valuable feature is real-time analytics."
"It is a very stable product. I never faced any issues."
"The most valuable features of Qumulo are the ease of management and special permissions that are quick to enable. The overall performance of the solution is good."
"The ratio of total operational cost to complexity versus feature set is very good."
"The most valuable features of Qumulo are its rolling updates and all-day availability."
"The data protection algorithm to protect the data between the nodes has been the most valuable feature. The integration with backup platforms such as Veeam and Veritas has also been valuable."
"The feature that I like most is the analytics part of the file system."
 

Cons

"The solution is quite expensive. That's one of the downsides to using it."
"The solution's infrastructure technology level could be PCI Express 5 instead of PCI Express 4 for the next version."
"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."
"The customer's expectations are what they get on the cloud, they're expecting even in the on-premises deployments, going forward."
"They can include Amazon file system S3 protocol in the upcoming releases. It is a cloud file system. IBM FlashSystem doesn't have this feature in the box for high-end or mid-range. We have got requests for this from customers because we need to use S3 for EDI application storage. At the beginning of every year, IBM releases firmware. When I find any bugs in the firmware during the year, I am unable to find any information from IBM regarding the bug. I need to open a ticket, and the IBM engineering team makes a patch only for me. This patch is not public. By creating a customized patch for a client, they don't really solve the issue for everyone. If multiple users have the same bug, IBM should upload the patch on the official website so that we can download it. IBM FlashSystem has a monitoring tool in the box, but it is not advanced. I need a more advanced tool for more advanced equations and monitoring. All top three storage vendors, that is, EMC, IBM, and Pure Storage, don't have a powerful monitoring tool. To monitor our box to show the statistics for I/Os and latency, I need to pay for extra software. The built-in monitoring storage is not mature enough to handle all requests and generate all reports that I need. They can include the functionality to stretch a cluster natively without using any additional boxes. In addition, there are some features that EMC has integrated with the box. These features are not available in IBM FlashSystem."
"The pricing could be improved, but I think it's getting better and better with each version. IBM needs to implement NAS storage again, as this is a big flaw. Dell EMC is very good at this and if you compared them based on NAS storage, Dell EMC would win right away. IBM's solution for NAS storage is very complicated. We don't have a storage box that provides file sharing from itself, we have to put software on it and go through a whole complicated process. It should be simplified."
"One area for improvement is in the GUI, where host clusters are not properly dealt with. With Hypervisor host clusters, all hosts must see the same volumes in the same order. Using the concept of a “host-group” has been around (even with IBM) for many years, so why not with the V7000?"
"Some anti-theft permissions do not transfer well to Qumulo."
"In the next release, I would like to see the ability to have more control at a terminal level of the file system."
"The solution could improve availability and improve data protection or data services such as compression of deduplication. In a future release, we'd like to have more cloud API integrations."
"One aspect of Qumulo that I hoped to see improved was its software upgrade process, which did see significant progress during my usage. Initially, upgrading the software resulted in several minutes of system downtime. However, by the time I departed last summer, the downtime had reduced to mere ten seconds. Although I am unsure if Qumulo has yet achieved a completely outage-free upgrade, I simply performed the upgrades early in the morning before the marketing department began its workday, so any downtime was inconsequential."
"The support for iMac and protocols should be improved, not all features are available."
"The price of the software is a bit expensive, so a reduction in cost would make it more competitive."
"Qumulo should continue to expand automation and orchestration capabilities."
"In the future, I would like to see non-disruptive updates."
 

Pricing and Cost Advice

"Among IBM, Dell EMC, and Pure Storage, IBM is the cheapest. The price is also based on our location, the size of our entity, and our regular annual purchases from them. We are a very big IBM customer, so we normally get very high discounts. We are not a big customer of Pure Storage. We don't buy that much from Pure Storage per year. Everything is included in the price. There is no extra license for different functions."
"The solution has good pricing, but it is not cheaper."
"I would rate the pricing of this solution a four out of five."
"I find the pricing of the solution to be very reasonable."
"Our customers would like IMB FlashSystem to be less expensive."
"This is an expensive product and if the price were reduced it would be better."
"The price of IBM FlashSystem is reasonable."
"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."
"The price of Qumulo is reasonable."
"The price of the solution is in the middle range compared to others. We look at the price per terabyte."
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Top Industries

By visitors reading reviews
Computer Software Company
13%
Financial Services Firm
11%
Manufacturing Company
9%
Comms Service Provider
7%
Computer Software Company
13%
Financial Services Firm
9%
Government
8%
Manufacturing Company
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business47
Midsize Enterprise22
Large Enterprise57
By reviewers
Company SizeCount
Small Business4
Midsize Enterprise2
Large Enterprise2
 

Questions from the Community

What needs improvement with IBM FlashSystem?
Some improvements are required in IBM regarding response time and resolution time, though not about competence. Product-wise, it performs well. We have not used AI features yet, and I believe havin...
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Comparisons

 

Also Known As

IBM Storwize
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Overview

 

Sample Customers

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
County of Riverside Sheriff Department, Hyundai Mobis Automotive North America, University of Arizona, UCSD - San Diego Supercomputer Center, Medical College of Wisconsin, Sinclair Oil, Royal Dutch Shell, Kaiser Permanente, Deluxe Creative, Vexcel Imaging, University of Florida, The Madison Square Garden Company, Arizona State University, Cinesite, San Diego Padres Baseball, Johns Hopkins University - School of Medicine, IHME, EllieMae, Washington State University.
Find out what your peers are saying about IBM FlashSystem vs. Qumulo and other solutions. Updated: November 2025.
872,869 professionals have used our research since 2012.