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Dell PowerScale vs HPE Sonexion comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Feb 22, 2026

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

Dell PowerScale
Ranking in NAS
1st
Average Rating
8.8
Reviews Sentiment
7.0
Number of Reviews
93
Ranking in other categories
File and Object Storage (2nd)
HPE Sonexion
Ranking in NAS
20th
Average Rating
0.0
Number of Reviews
0
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of May 2026, in the NAS category, the mindshare of Dell PowerScale is 14.5%, down from 17.8% compared to the previous year. The mindshare of HPE Sonexion is 1.3%, up from 0.8% compared to the previous year. It is calculated based on PeerSpot user engagement data.
NAS Mindshare Distribution
ProductMindshare (%)
Dell PowerScale (Isilon)14.5%
HPE Sonexion1.3%
Other84.2%
NAS
 

Q&A Highlights

it_user462825 - PeerSpot reviewer
Works at a tech company with 51-200 employees
Jun 18, 2016
 

Featured Reviews

SK
Solutions Architect at a university with 10,001+ employees
Operates seamlessly and minimizes downtime while meeting enterprise file share demands
The features of Dell PowerScale (Isilon) that I appreciate the most include the scale of architecture and the way it is designed. These features benefit my company by providing less downtime and less overhead. While I have not calculated an exact number regarding the reduction in downtime, we have always been using the product, so we have no baseline to compare it to. However, it is a very good product. Dell PowerScale (Isilon) scales very well with the growing needs of my company.
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Answers from the Community

it_user462825 - PeerSpot reviewer
Works at a tech company with 51-200 employees
Jun 20, 2016
Jun 20, 2016
Both systems address the needs of HPC storage, but some significant differences are noted below: 1. The scalability of Lustre beats all other storage systems. As you can see at https://www.nersc.gov/assets/Uploads/W01-ZFS-and-Lustre-June-1024.pdf, the Lustre performance can be scale up to 1.5 TB/sec in the real world. The EMC Isilon performance record is much lesser because it limited by the m...
2 out of 13 answers
Jun 16, 2016
No knowledge in any of them, sorry ☺
NE
Storage and Backup Manager at Vodafone
Jun 16, 2016
Hello, Unfortunately I have not used EMC Isilon and Sonexion Lustre Storage System before and I am sorry I will not be able to help. [http://www.2ndrugeleyscoutgroup.com/uploads/2/9/8/5/2985230/8142375.gif?315] [cid:image001.png@01CEC65F.D81990F0] Nana Esigyan Tachie-Menson Lead Storage/Backup Infrastructure Services IT/IP Vodafone Ghana t : +233 (0)20 200 5990 e : nana.tachie-menson@vodafone.com
 

Top Industries

By visitors reading reviews
Manufacturing Company
11%
Computer Software Company
9%
Financial Services Firm
9%
Government
8%
No data available
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business25
Midsize Enterprise23
Large Enterprise51
No data available
 

Questions from the Community

What needs improvement with Dell EMC PowerScale (Isilon)?
I think Dell PowerScale (Isilon) could improve some functions such as Apache S3 or containerized storage support, as these aspects are not well-developed. Their support system is weak; many issues ...
What is your primary use case for Dell EMC PowerScale (Isilon)?
Our primary use cases include virtualization storage and external storage via NFS.
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Also Known As

PowerScale, Dell EMC Isilon
Sonexion Scale-out Lustre Storage System
 

Overview

 

Sample Customers

OMRF, University of Utah, Translational Genetics Research Institute, Arcis, Geofizyka Torumn, Cyprus E&P Corporation, Colburn School, Columbia Sportswear, Harvard Medical School, University of Michigan, National Library of France,
Petrobras, Korea Meteorological Association
Find out what your peers are saying about Dell Technologies, NetApp, CTERA and others in NAS. Updated: May 2026.
896,467 professionals have used our research since 2012.