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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)
4th
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 March 2026, in the Modular SAN (Storage Area Network) category, the mindshare of IBM FlashSystem is 12.3%, down from 19.8% compared to the previous year. The mindshare of NEC D3 series is 1.7%, up from 0.5% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Modular SAN (Storage Area Network) Mindshare Distribution
ProductMindshare (%)
IBM FlashSystem12.3%
NEC D3 series1.7%
Other86.0%
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 compression and deduplication features are the most valuable."
"It's very stable as a single system or you can have it as a cluster for redundancy."
"The performance of the solution is noteworthy."
"IBM FlashSystem is the best solution for storage virtualization."
"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."
"After we migrated them under the IBM Flash Array, the overall IOPS rate has increased by 30% and its latency is lower."
"User friendly management interface."
"The most valuable features are deduplication and compression, which together, enable you to have more space."
"Technical support from NEC is very good."
"The performance is better than with our previous version."
 

Cons

"The GUI needs some improvement. An additional function that could be helpful is reducing the time it takes to delete volumes, especially if they are compressed or deduplicated."
"The GUI needs some improvement."
"The cluster should be improved because non-disruptive failover was supported only on a few operating systems."
"The GUI for monitoring performance metrics could provide better visibility. For example, it doesn't let me segregate the IOPS per volume."
"The interface could improve in IBM FlashSystem."
"We faced power supply failure, multiple SAS drives failure, and at the end both controllers were dead."
"It is slightly more expensive, however, it all depends on your supplier."
"We had issues when attempting to do a flash, we hope to resolve it soon."
"We are not satisfied with the cost of licensing and would like to have a better price to performance ratio."
"We are not satisfied with the cost of licensing and would like to have a better price to performance ratio."
 

Pricing and Cost Advice

"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 tool is cost-efficient."
"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."
"If five is a good price and one is a high price, I would rate the price a two or three out of five."
"The price is a little bit high so is rated a six out of ten."
"You purchase it as a bundle and the price is comparable."
"I price of IBM FlashSystem is reasonable and competitive."
"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."
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Top Industries

By visitors reading reviews
Computer Software Company
10%
Financial Services Firm
10%
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, Hewlett Packard Enterprise, Hitachi Vantara and others in Modular SAN (Storage Area Network). Updated: March 2026.
884,933 professionals have used our research since 2012.