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Dell Unity XT vs VNX [EOL] 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:
 

Categories and Ranking

Pure FlashArray X NVMe
Sponsored
Average Rating
9.0
Reviews Sentiment
7.6
Number of Reviews
35
Ranking in other categories
All-Flash Storage (15th), NVMe All-Flash Storage Arrays (6th)
Dell Unity XT
Average Rating
8.4
Reviews Sentiment
7.1
Number of Reviews
194
Ranking in other categories
All-Flash Storage (4th)
VNX [EOL]
Average Rating
8.0
Number of Reviews
36
Ranking in other categories
No ranking in other categories
 

Q&A Highlights

it_user752949 - PeerSpot reviewer
Dec 03, 2017
 

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.
RS
​The VNX 5700 provides a large number of features including the ability to work for both file and block as a unified array.
Once you establish a replication job, when the file system is synchronizing its data to the target file system, it tends to create a balloon effect where it creates a file system that grows as the new data is synchronizing. It would be very helpful if the replication job could incorporate a self-cleaning job after the synchronization job completes to reduce the size of the file system in the target automatically. Very often, we have to run a script called “SavVolReclaim” to clean up space consumed while the replication is in progress. If the replication job hits its maximum capacity of 16TB while synchronizing, it stops the replication job. By adding this reclaim process natively, it would eliminate additional unnecessary work for the storage administrators. It would be very helpful to get an automated report that shows you the size of the checkpoints and get warnings when a checkpoint is reaching either maximum capacity per a file system or hitting the ceiling on the SavVol pool consumption.

Quotes from Members

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

Pros

"It offers competitive performance, and the Evergreen storage model of Pure fits well with my organization."
"The high availability of the product is the most valuable feature."
"The latency is good."
"Pure FlashArray X NVMe will quickly overcome all the hurdles you face, including network and latency issues."
"Pure Storage has signature security technology, which cannot be deleted, even if you are an administrator."
"The most valuable feature of this solution is reliability."
"The most valuable features of this solution are its ease of use and performance."
"I use the tool for Oracle databases, Oracle virtual machines, and Oracle Linux databases. I'm on the storage side, not a database administrator."
"Veeam Backup integration: Veeam is the defacto standard for backing up of virtual environments."
"Key features are ease of use, ease of management, ease of deployment, and the GUI is very user-friendly."
"They've integrated NAS and SAN pretty well. It made replication very simple. Because one of our systems has a lot of LANs, for it to replicate we have Consistency Groups in there. That's something that is really helpful, making sure that everything is working not just for replication but for backups as well."
"We just recently started using the Dynamic Pools, so while it's scalable, we actually find it valuable that we can just pop in one or two drives when we need to, instead of having to add a whole RAID set. That has actually been very handy for us."
"The all-flash feature is really boosting up the VMware. It is helping our virtual machines to perform better."
"We particularly like the user interface on cloud IQ with this product."
"Because I always need to trouble shooting for IOPS & database (DB) performance issues. I can quickly focus on what is part of the issue. I can decrease downtime and can plan next year's extended capacity budget."
"Via a click, we can deploy a data store or LUN to the ESX host. We can also deploy VVOLs to the ESX server."
"It is very stable even during multiple power failures."
"FAST (auto-tiering): Doesn't require configuration and is managed by the array itself."
"From my point of view, the configuration that I can sell is restricted to the EMC best practices. It is hard to make a mistake in a solution. It means the configuration has good performance and scalability options."
"One of the best features of the VNX is the ability to combine drives of different types into a virtual Storage Pool. By combining small but fast flash drives, SAS drives, and high-capacity but slower NL-SAS drives, the VNX can intelligently move data to the different tiers of storage based on usage."
"The implementation of both block and file system storage in a single GUI provides is better situated than most other storages."
"Integration with VMware"
"High availability including non-disruptive updates: We cannot afford downtime windows."
"Good performance for VM environments"
 

Cons

"I would like to see replication and DR features in the next release of this solution."
"We would like to see VNC integration or be able to use Pure Storage with VNC."
"Every time I think of something that needs to improve, they're one step ahead, which I love. The only area I wish to see improve, I believe is coming, is in the FlashBlade product. Blade implementation fell short on a few of the services."
"The software layer has to improve."
"We would like to see more visibility into garbage collection and CPU performance in the GUI."
"Many options to check performance, like read, writes, random writes, and random reads, are missing in Pure FlashArray X NVMe."
"Maybe the price can be reduced since the solution is very expensive."
"In terms of what needs improvement, the dashboard and management could be simplified."
"The storage processors have less port expansion than previous high-end VNX arrays. Data compression is only available in all-flash pools."
"Perhaps if they added more 10GB ports to the back of the system, so you have more IOPS out of the box itself to the network, that would help."
"Data replication needs improvement as the future roadmap for RecoverPoint appliance is not there."
"The user interface could be improved. The Dell Compellent user interface is fantastic, but the Unity user interface is, in comparison, pretty lousy. It's functional, and I can do what I need, but the Dell Compellent user interface is so much more intuitive and user-friendly."
"What I'd like to see is a little more detail on the networking side. I can go into where it's showing me the replication, but when I go into the network it just gives me broad-based information. I don't know which replication job is actually feeding it. I have to go in and rely on other apps."
"Dell could improve Unity XT by adding support for NVMe."
"I would like to have secure mobile connectivity going forward. This would help me be more proactive."
"The initial setup is not so straightforward if you don't have experience with storage arrays."
"Based on our workloads, we see repeatedly in performance reports that the built-in controller (SP) cache of our VNX model is not sufficiently large, resulting in forced cache flushing."
"VNX can improve by offering flexible upgrade options. It's not possible to add a single HDD to a current array and there are fixed rules to make upgrades."
"There is no easy way to defrag a RAID group. It would be nice to be able to reduce the size of a storage pool if the storage is not needed anymore."
"The management software used for the VNX is Unicenter. While it is an improvement over Navicenter, used in older EMC SANs, it still feels outdated in comparison to other SAN management software."
"It would be very helpful to get an automated report that shows you the size of the checkpoints and get warnings when a checkpoint is reaching either maximum capacity per a file system or hitting the ceiling on the SavVol pool consumption."
"The CLI could be better documented, like with VMAX."
"Poor connection to FC."
"EMC VNX needs to support bigger SSDs. Next generation EMC Unity will do this."
 

Pricing and Cost Advice

"The tool is an investment that we've budgeted for. While the prices may be higher than those of other vendors, we see it as a market leader with benefits. We don't regret purchasing it."
"The tool's pricing is cheap; I rate it a six to seven out of ten. Most of our sales are not subscription-based. We sell the hardware, and customers keep using it. They only renew the service part annually. The support can be a bit pricey, but the solution is more cost-effective than anything else out there."
"We pay approximately $50,000 USD per year in licensing fees."
"Our licensing fees are $500,000+ USD."
"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."
"Pure FlashArray X NVMe’s pricing is cheaper than other products."
"The product is expensive."
"Given its price, Pure is not the first option."
"Licensing is a little bit confusing. Going through everything with them, there are a lot of line items to go over. Every single thing is broken down into a line item, and it starts to get really confusing in terms of what we're actually purchasing when it comes to the product."
"The pricing was quite okay compared to others. We probably got it cheaper because we were the first ones out of the gate, but I would say that it's good value for the money."
"I liked the price point when we purchased it."
"Our big return of investment is the ability to scale and not add FTE counts nor extra administration."
"The pricing is competitive. We miss some of the feature functionality that we had with the XtremeIOs but it's certainly suitable for the purpose."
"The solution is very expensive."
"We have to apply for a license for each system."
"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 initial pricing and licensing are reasonable, the yearly EMC is more expensive"
"The initial pricing and licensing are reasonable. Yearly EMC is more expensive."
"Make sure you understand how the licensing works and that you are getting the right set of licenses if you need array-to-array replication."
"​Reducing dependency on JavaServer Pages​ (JSP) could improve the administrative overhead.​"
"While EMC tends to be on the expensive side, the stability and support of their products are top-notch and I feel are worth the cost."
"Pricing is somewhat higher, especially in Zambia, perhaps due to the low sales volume."
"Over time, VNX has become pricier than its competitors, and we have turned enthusiastically to Unity."
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Answers from the Community

it_user752949 - PeerSpot reviewer
Dec 3, 2017
Dec 3, 2017
Unity series is re-engineered VNX, so the Unity is newer … it makes better use of flash, active – active , dual controller mode; better price point , configurations solid upgrade from the VNX
2 out of 21 answers
CT
Oct 31, 2017
The VNX range is older and is being phased out. I think you mean VNX 5200? That said the Unity 400 is the better investment as it is newer, cheaper to support, faster, and with higher capacity and bigger supported file system size.
it_user281856 - PeerSpot reviewer
Oct 31, 2017
Hope this helps: http://virtualgeek.typepad.com/virtual_geek/2016/05/emc-world-2016-unity-the-story-behind-the-story.html
 

Top Industries

By visitors reading reviews
Computer Software Company
15%
Financial Services Firm
11%
Manufacturing Company
11%
Government
6%
Educational Organization
72%
Computer Software Company
5%
Manufacturing Company
3%
Government
2%
No data available
 

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...
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Also Known As

Pure FlashArray//X NVMe, Pure FlashArray//X, FlashArray//X
EMC Unity, Dell EMC Unity
VNX
 

Overview

 

Sample Customers

Fremont Bank, Judson ISD, The Nielsen Company
Draper, Rio Grande Pacific, Royal Victoria Regional Health Centre
Samsonite, Comanche County Memorial Hospital, Kindred Healthcare
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