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Dell Unity XT vs HPE Alletra Storage comparison

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Comparison Buyer's Guide

Executive SummaryUpdated on Mar 16, 2025

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

Pure FlashArray X NVMe
Sponsored
Ranking in All-Flash Storage
15th
Average Rating
9.0
Reviews Sentiment
7.6
Number of Reviews
35
Ranking in other categories
NVMe All-Flash Storage Arrays (6th)
Dell Unity XT
Ranking in All-Flash Storage
5th
Average Rating
8.4
Reviews Sentiment
7.1
Number of Reviews
196
Ranking in other categories
No ranking in other categories
HPE Alletra Storage
Ranking in All-Flash Storage
4th
Average Rating
9.2
Reviews Sentiment
7.5
Number of Reviews
50
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of May 2025, in the All-Flash Storage category, the mindshare of Pure FlashArray X NVMe is 0.8%, down from 0.8% compared to the previous year. The mindshare of Dell Unity XT is 7.3%, down from 10.2% compared to the previous year. The mindshare of HPE Alletra Storage is 9.2%, up from 0.7% compared to the previous year. It is calculated based on PeerSpot user engagement data.
All-Flash Storage
 

Featured Reviews

Eugene Hemphill - PeerSpot reviewer
Helps to save money and resources with the data compression feature
One point I'd like to improve is that the tool should start selling small boxes again. It discontinued some products and is focusing on bigger, more capable boxes, neglecting the SMB market. Even though it's not a big market, it shouldn't have removed them. One way to improve the product is to add an operational assistant that doesn't depend on VMware. It could also establish more alliances with other operational systems.
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.
Lisa Whalen - PeerSpot reviewer
Provides a cloud-like operation model on-prem for managing data infrastructure
I've always said I love that it's easy to use. At one point in time, we had a 3PAR. And with 3PAR, I always thought it was a little more difficult. There was so much more to maintaining it, setting it up, and everything. With the [HPE] Alletra [Storage], it's just easy. It's easy to provision space to use and to set up. InfoSight is invaluable to me. With it, I can just quickly go out there and see what is going on. Alletra provides a cloud-like operation model on-prem for managing data infrastructure. [HPE] Alletra [Storage] is very good for predicting problems and preventing them before they occur. InfoSight has really helped with that. I honestly don't have to look at it much. However, there's the alerting and everything that will tell us what's going on. That said, I check InfoSight every once in a while. [HPE Alletra Storage] reduced the time spent on storage provision. It's so much easier than the 3PAR. It's just so much easier. I don't spend time in there at all. The product improved our storage performance experience in terms of IOPS. Our end users that use the SAP environment were a little concerned at first. We said we were going to switch over from the 3PAR to the Alletra since they've always been more familiar with the 3PAR. However, when we moved them over, they noticed a performance increase.

Quotes from Members

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

Pros

"Pure FlashArray X NVMe has low latency and high Ops. It is an evergreen model."
"Pure FlashArray X NVMe will quickly overcome all the hurdles you face, including network and latency issues."
"What I really like about this program, is that it is easy to use and easy to configurate."
"I use the tool for Oracle databases, Oracle virtual machines, and Oracle Linux databases. I'm on the storage side, not a database administrator."
"Offers excellent features like efficient data reduction, a reliable SafeMode, and a great support model for continuous assistance and updates."
"The latency is good."
"The Pure1 component is most valuable at this point in time when comparing it with EMC. Pure1 is where you can have your diagnostics in the cloud, so you can look at things from your mobile phone."
"On a scale of one to ten, I rate Pure FlashArray as ten."
"The most valuable features include snapshots, Thin Clones, and deduplication and compression."
"Being all-flash makes everything super-fast. It's also great to manage. That's the easiest part. We also have another SAN, from Pure, and the Unity is easier to manage than the Pure."
"It is easy to manage overall. It is all web-based. It has a an easy, nice dashboard. I receive emails if there are issues. When there are any updates, I receive emails. I can either do them on my own, but normally I schedule them with Dell EMC and they remote in, then it's done."
"It’s helped with the overall stability of our VMware environment."
"It is a workhorse and will run even demanding workloads."
"Initial setup is a simple process."
"I like that when you log in it gives you a dashboard of what your storage looks like."
"The solution overall has high performance."
"The reliability is very good."
"Alletra has helped us reduce time spent on storage."
"More deduplication and compression are valuable because capacity matters."
"It is simple to manage and integrate with our virtualization platform. There is also the storage efficiency."
"HPE Alletra Storage is 100% stable and is the best in the market, although slightly expensive."
"Right now, it's offered both cost reduction and space reduction."
"We now have much more storage and the uptime is very good."
"The tool's notable feature is that we don't need to log a case directly with the vendor. The tool has access to all the logs on-premises. This is an on-premises solution. Additionally, we can provision data as thick or thin provisioned. Moreover, it includes data grid duplication and compression features."
 

Cons

"Our use cases require more multi-tenant capabilities and additional VLAN interfaces for separating different customers. We currently use it to provide storage, sometimes shared storage, to different customers, but it is less flexible in comparison to a dedicated solution."
"If the customer only needs 500 terabytes and doesn't care how much data they'll put in the server, IBM is cheaper than Pure."
"We need better data deduplication."
"Right now, the box itself is just strictly working as a backend storage system. It would be fantastic if we could access it directly like a NAS device through network access or SIS drives. I think they have an interface, but I am not sure how good it is. If we could address a box directly on the network without having to go through a server, it would be great. The replication schemas could be improved. We are not using replication on the storage level right now. We use a different type of replication. If their replication would be as good as the one that we have, I would probably run the replication schema because it might be faster, but I don't know that for a fact. So, I cannot say that they have good replication. All I can say is that they need to inform us better."
"In the next release, I would like to see real-time analytics for further insight into consumption models."
"The UI for this solution needs to be improved."
"The tool's pricing is higher than competitors."
"Many options to check performance, like read, writes, random writes, and random reads, are missing in Pure FlashArray X NVMe."
"We would like to see more advanced integration capability added to this solution."
"Improve the administrative user interface so it is easier to work with. Currently, a simple task, such as removing a host from 100 LUNS, takes a lot of time. If they could improve LUN to host model to be more like the EMC VPLEX, for example, it would be great."
"The solution should include a free process in the HPE portal that uses serial numbers to verify that hardware is genuine."
"There is room for improvement in manufacturing."
"I would like to see a more seamless virtual box integration with the physical box which can replicate, because the setup of the replication is very difficult right now."
"We are running VMware, and with the VNXe it was possible to restore. We're using Veeam for VMware backups and with the predecessor, it was possible to mount a backup or restore a backup from a storage snapshot. With the Unity 300, this is not possible."
"Dell EMC Unity is not sexy. It doesn't have all the flash and pizzazz of some of the other storage vendors."
"Last (and I understand that it has a low chance of being implemented) the copy services currently are redirect on write. It would be great if the administrator could choose between redirect on write and copy on write, when configuring copy job."
"They can continue developing their V vaults and peer persistence. They can implement active-active peer persistence so that our organization can use it."
"Some of the upgrades can take a while to come through. The release cadence of versions is a little bit slow."
"It would be great if it cost less."
"I cannot think of a specific area that needs improvement."
"It would be great if we had a direct integration with Veeam repositories so we wouldn't have to go through Linux or Windows."
"Technical support from HPE can be hit and miss."
"More training videos would help. We could learn some best practices. Sometimes, people may not follow the best practices and reach out to support, who will tell them that they need to follow these best practices to get this performance or result."
"We haven't had any issues with the solution so far."
 

Pricing and Cost Advice

"With Pure Storage, we would like to continue seeing price reductions with flash storage. I don't think we're any different than anybody else when we continue to look to the industry for price reductions of both NVMe and traditional SSD storage. We would like to see these prices continue to decline and erode, even displacing large spinning disks."
"The product is expensive."
"They can tout the functionality and cutting edge technology that they have, but that's where the price tag comes in. The cost is high, but I think as they grow their business and get more customers that it will probably go down a little bit."
"As far as the licensing costs, everything is included in the license."
"Its price could be better. It is not too expensive, but it is the high-end cost. It is kind of a Rolls-Royce. You pay a lot, but you get a lot out of it. So, the price pressure on the way down would be great, but at the end of the day, if you need to do the work, you just pay for it."
"Our licensing fees are $500,000+ USD."
"With VMware, we pay $300,000 annually."
"The support cost per array is about $20,000 a year for 24/7 support."
"We integrated it with VMware vSphere at no additional cost. As we moved into VMware vSphere, this is what we bought to go with it for our storage performance."
"The support you're getting with it is probably an underestimated value that comes with the box you're buying."
"The solution is very expensive."
"The Dell EMC Data Protection license covers everything, like a one stop shop. All our options are covered."
"While Dell EMC is costly, I don't have any complaints about their licensing model."
"As far as licensing goes, I love how VMware works with Dell EMC Unity. It's great. They work hand in hand. They have made it so simple."
"We bought extended warranties out of the box because our customer has a bad habit of managing warranties."
"This solution offers great pricing."
"Overall, it was good. It had a good price per gigabyte."
"It is fairly priced. It is in line with industry standard pricing and cost models."
"The solution is expensive and can cost around five lakhs."
"HPE was a clear winner on price per terabyte. It was very smooth."
"There is a license. HPE Alletra uses a cloud-based model."
"Its licensing is good. Pricing-wise, there can be a little bit more flexibility. It would help to have different sizes. However, it fits into the budget that we have, so we are happy."
"So far, so good."
"It is reasonably priced."
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Top Industries

By visitors reading reviews
Computer Software Company
15%
Financial Services Firm
11%
Manufacturing Company
11%
Government
6%
Educational Organization
64%
Computer Software Company
7%
Manufacturing Company
4%
Government
3%
Computer Software Company
17%
Manufacturing Company
10%
Financial Services Firm
8%
Government
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...
What do you like most about HPE Alletra?
It offers rich features and high speed for transferring data.
What is your experience regarding pricing and costs for HPE Alletra?
Scheduling a Proof of Concept to demonstrate ROI - Will be a well documented way to portray Alletra's performance, ju...
What needs improvement with HPE Alletra?
I would say that maybe the user interface and experience could be improved. There are a few areas where enhancements ...
 

Also Known As

Pure FlashArray//X NVMe, Pure FlashArray//X, FlashArray//X
EMC Unity, Dell EMC Unity
No data available
 

Overview

 

Sample Customers

Fremont Bank, Judson ISD, The Nielsen Company
Draper, Rio Grande Pacific, Royal Victoria Regional Health Centre
Accenture, Aetna, AIG, Airbus, Allianz, American Express, ATT, Bank of America, Barclays, BASF, Bayer, Berkshire Hathaway, Boeing, BNP Paribas, Citigroup, Coca Cola, Comcast, Credit Suisse, Dell, Deutsche Bank, ExxonMobil, Ford Motor Company, General Electric, Google, HSBC, IBM, Intel, JPMorgan Chase, Kroger, L'Oreal, Merck
Find out what your peers are saying about Dell Unity XT vs. HPE Alletra Storage and other solutions. Updated: April 2025.
851,604 professionals have used our research since 2012.