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Dell Unity XT vs HPE Nimble Storage vs IBM FlashSystem 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:
 

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 Dell Unity XT is 6.7%, down from 10.2% compared to the previous year. The mindshare of HPE Nimble Storage is 2.4%, down from 5.5% compared to the previous year. The mindshare of IBM FlashSystem is 6.5%, down from 6.8% compared to the previous year. It is calculated based on PeerSpot user engagement data.
All-Flash Storage
 

Featured Reviews

Jaehoon Oh - PeerSpot reviewer
Supports efficient storage management through volume snapshots and offers reliable non-disruptive upgrades
I have no specific improvements to suggest for Pure FlashArray X NVMe at this time. The performance statistics could be enhanced. I can see the performance statistics in the Pure Storage console, but it does not show the performance by 4K byte unit. It displays IOPS and bandwidth, but IOPS is about real use, and I want to know how many IOPS are currently running in 4K byte units. I cannot see that IOPS because most storage systems report their performance by 4K byte unit. I want to see Pure Storage performance by 4K byte unit to compare with other storage or other internal NVMe SSD.
Syed Habib - PeerSpot reviewer
Efficient data replication and fast IOPS have improved operational performance
Dell and a partner jointly implemented this solution in Auvink. We installed the Flash, which makes our IO operations fast and efficient. Replication is available, allowing us to replicate data simultaneously from one site to another. All-flash technology and vTXT enhance speed, and the IOPS are faster. The cache's IOPS are much better. Snapshots provide a unique feature for testing and make management more comfortable and easy. The platform is multi-supported and certification is more convenient and easy to manage.
Ajit Pratap Kundan - PeerSpot reviewer
A tool that offers protection against ransomware and other enterprise-level attacks
HPE Nimble Storage's cost is very high, making it one of its downsides. HPE Nimble Storage's cost is very high compared with any HCI solutions, like HPE's SimpliVity, Nutanix, VMware, or Dell VxRail. A person requires a special skill set to operate HPE Nimble Storage because there are hardly any solutions similar to Nimble Storage in the market. The product's support can be made faster and more responsive if HPE trains its partners in such a way that they acquire more expertise on Nimble Storage through the training sessions. HPE Nimble Storage is dependent on only VMware vSphere Hypervisor. In the future, HPE has to make Nimble Storage feasible with other hypervisors like Microsoft Hyper-V, Nutanix Acropolis, and RHEV, meaning it should be hypervisor agnostic.
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.
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Top Industries

By visitors reading reviews
Computer Software Company
14%
Financial Services Firm
11%
Manufacturing Company
11%
Government
6%
Educational Organization
21%
Computer Software Company
14%
Manufacturing Company
9%
Government
6%
Educational Organization
25%
Computer Software Company
14%
Manufacturing Company
6%
Government
6%
Computer Software Company
14%
Financial Services Firm
11%
Manufacturing Company
9%
Comms Service Provider
7%
 

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 the Biggest Difference Between Dell EMC Unity and NetApp AFF?
I saw that you have doubts about what you chose. I have a lot of experience with the constructor, honestly I can reco...
What is the Biggest Difference Between Dell EMC Unity and NetApp AFF?
They’re both great solutions and I’ve used both. EMC is being VERY aggressive on pricing which may be the undoing of...
What is the Biggest Difference Between Dell EMC Unity and NetApp AFF?
First of all the decision should be taken looking at similar products in terms of capacity and performance. I will sh...
How does HPE Nimble Storage compare to VxRail?
HPE Nimble Storage dHCI Vs. VxRail One of the best things about the HPE Nimble Storage dHCI is the three, two, one, z...
Which would you choose - HPE Nimble Storage or HPE Primera?
HPE Nimble is a versatile synced WAN San solution. It is easy to use and doesn’t require much training for admins. Th...
What do you like most about HPE Nimble Storage?
The solution's predictive analytics is good. It helps to save costs.
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/...
 

Also Known As

Pure FlashArray//X NVMe, Pure FlashArray//X, FlashArray//X
EMC Unity, Dell EMC Unity
Nimble Storage
IBM Storwize
 

Overview

 

Sample Customers

Fremont Bank, Judson ISD, The Nielsen Company
Draper, Rio Grande Pacific, Royal Victoria Regional Health Centre
Ace Relocation, Atkins Nutritionals, Berkeley Research Group, Canadian International School, City of Hot Springs, Clackamas County, Corona-Norco Unified School District, Ideal Integrations, Linear Technology, P&O Maritime, Retail Apparel Group (RAG), Virtual Radiologic
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
Find out what your peers are saying about Dell Technologies, NetApp, Hewlett Packard Enterprise and others in All-Flash Storage. Updated: June 2025.
862,077 professionals have used our research since 2012.