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IBM FlashSystem vs NEC D3 series comparison

 

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

IBM FlashSystem
Ranking in Modular SAN (Storage Area Network)
2nd
Average Rating
8.2
Reviews Sentiment
6.9
Number of Reviews
113
Ranking in other categories
NAS (6th), All-Flash Storage (10th)
NEC D3 series
Ranking in Modular SAN (Storage Area Network)
15th
Average Rating
9.0
Reviews Sentiment
8.0
Number of Reviews
1
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of January 2026, in the Modular SAN (Storage Area Network) category, the mindshare of IBM FlashSystem is 13.0%, down from 19.5% compared to the previous year. The mindshare of NEC D3 series is 1.6%, up from 0.4% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Modular SAN (Storage Area Network) Market Share Distribution
ProductMarket Share (%)
IBM FlashSystem13.0%
NEC D3 series1.6%
Other85.4%
Modular SAN (Storage Area Network)
 

Featured Reviews

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.
reviewer1369971 - PeerSpot reviewer
Head of IT at a manufacturing company with 501-1,000 employees
Stable, performs well, and the technical support is good
We use this storage solution to host our ERP, CRM, file server, databases, and lots of other things The performance is better than with our previous version. We are not satisfied with the cost of licensing and would like to have a better price to performance ratio. We have had contract-related…

Quotes from Members

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

Pros

"The valuable feature is autoscalling."
"The most valuable feature of the solution is SCM (Storage Class Memory), which has the lowest latency value in the storage industry."
"The feature I find most valuable, is the deduplication, because the nature of the data that we are using in our current environment, has a lot of replicated data."
"User friendly management interface."
"One of the most valuable features is that it's very easy to use and configure. It used to be more difficult, but now it's almost flawless."
"IBM FlashSystem is the best solution for storage virtualization."
"The performance of the All-Flash System is very good. There is more enhanced performance and data production in the solution, which I appreciate."
"The performance monitoring feature is useful as it can report in 15 minute intervals by hour, day, week, month, or by a custom date range."
"The performance is better than with our previous version."
 

Cons

"The GUI for monitoring performance metrics could provide better visibility. For example, it doesn't let me segregate the IOPS per volume."
"The installation is not easy. You need to have extensive knowledge to handle it."
"In the next release having the next level of high-speed performance would be great."
"The solution's infrastructure technology level could be PCI Express 5 instead of PCI Express 4 for the next version."
"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."
"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."
"The product needs to improve their scalability."
"There could be some extra features added."
"We are not satisfied with the cost of licensing and would like to have a better price to performance ratio."
 

Pricing and Cost Advice

"The pricing is competitive in our country."
"The cost is pretty high in terms of licensing. We pay at least $100,000 USD in licensing fees for the storage."
"I'd rate the basic licensing and the Virtualize software a ten out of ten, and the extra Spectrum and other an eight out of ten."
"The solution requires a license and could be less expensive."
"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."
"For a yearly license, it is about $100,000. There are no additional costs. The entire system is included."
"Our customers would like IMB FlashSystem to be less expensive."
"The cost of the IBM FlashSystem is lower than the HPE solution."
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Top Industries

By visitors reading reviews
Computer Software Company
11%
Financial Services Firm
11%
Manufacturing Company
9%
Comms Service Provider
7%
No data available
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business47
Midsize Enterprise21
Large Enterprise59
No data available
 

Questions from the Community

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...
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Also Known As

IBM Storwize
D3 series
 

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
Tsukuba Science City, Hokkaido Telecommunication Network Co. Inc, PHP Institute
Find out what your peers are saying about NetApp, IBM, Hitachi Vantara and others in Modular SAN (Storage Area Network). Updated: December 2025.
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