Dell Unity XT vs VMware vSAN comparison

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Executive Summary

We performed a comparison between Dell Unity XT and VMware vSAN based on real PeerSpot user reviews.

Find out what your peers are saying about Dell Technologies, NetApp, Pure Storage and others in All-Flash Storage.
To learn more, read our detailed All-Flash Storage Report (Updated: March 2024).
763,955 professionals have used our research since 2012.
Featured Review
Quotes From Members
We asked business professionals to review the solutions they use.
Here are some excerpts of what they said:
Pros
"It gives us capacity planning.""The deduplication and compression meet all of our system requirements.""We have seen savings in our storage. The speed of deployment has gone from several days to a few minutes. This product has reduced that time into minutes, simplifying storage for us.""The deduplication in the array combined with its snap technologies allows the product to be remotely/manually controlled or scheduled.""Because of the encryption, we have different storage and the encryption can go over both.""Having fast storage allows actual servers to perform in high capacity so we don't have slowdowns on our applications.""The solution offers amazing performance.""The most valuable feature of this solution is the support."

More Pure Storage FlashArray Pros →

"Via a click, we can deploy a data store or LUN to the ESX host. We can also deploy VVOLs to the ESX server.""The performance is great. We have four or five different Unity arrays, and they have all run flawlessly.""The replication is big for us. We use file services on Unity and it has a really nice file services interface. It's also easy to manage. It's really easy in terms of provisioning, replication. There are no real tricks to it. It's just easy.""We have simplified it down to where we're using one storage pool inside the Unity, whereas on the VNX, we had multiple storage pools. This has simplified that aspect for us. It would depend on each organization. We're heavy into VMware and this ties into it so simply. It's made it a lot easier for us. I create a datastore inside Unity, it just shows up in VMware. I love that tie-in.""It will certainly help us scale bigger. If I look at the footprint, the VNX's was multi-rack. Now, all of a sudden, we're only at a portion of a rack. And, obviously, if we can scale within the same rack - we can certainly see that by the number of hard drives we've had to put in - we can scale a lot more easily.""The most valuable features include snapshots, Thin Clones, and deduplication and compression.""We are happy with the way we have Dell EMC Unity XT configured.""It has compression, which allows you to store more data than you would normally under the arrays."

More Dell Unity XT Pros →

"Good performance, reliable and agile.""We've found the solution to be scalable.""We find it easy to deliver this solution.""High availability is a valuable aspect of this solution.""The flexibility is most valuable. Being able to manage things quickly if something goes wrong is also valuable. Very recently, we had one node that went down due to a power problem, but there was really no major impact on the systems running on top of it.""You get the benefit of local storage, but you have the protection of shared storage.""To me, VMware is a leader of the visualizations. I think everyone just follow VMware.""Storage policies are used to perform operations in the VMs. This feature allows you to create storage policies for VMs to get performance, high availability, I/O policies, etc."

More VMware vSAN Pros →

Cons
"The problem is that we can only make a few groups, around five or six groups. I like groups and we need a lot of them. We had to put all the information in only a few groups and cannot make a more detailed separation of them.""I would rate this solution an eight. To make it a ten it would have to be a little cheaper.""I would like to see them lower the costs.""We did have one hiccup with the integration of vCenter. When we were installing Pure Storage, we were using vCenter 6.7, which defaults to the HTML5 Web Client. The current plugin for Pure Storage doesn't show up in that client at all. You have to go and use the legacy FlexFlash client to see the Pure Storage plugin in vCenter.""We have not seen a reduction in our TCO nor have we seen ROI.""There are a lot of things to improve.""We would like to see better troubleshooting aspects. It helps us if we can find out where the problem is. Right now, it's difficult. Sometimes it's difficult to pinpoint the issue. If they had more visibility and more troubleshooting feature built into the tool that would really help.""A three wave application or multi wave application synchronization would be an improvement."

More Pure Storage FlashArray Cons →

"I haven't seen the roadmap for this solution.""The initial setup is not so straightforward if you don't have experience with storage arrays.""Because we can do synchronous replication between the two sites, this made the setup challenging for this piece. They did not know how to set this up initially. We ended up having to do bidirectional synchronous replication.""We have had some downtime. Nothing is perfect. Unity’s have had some code-release problems, versions that, from a compatibility perspective, had some glitches which caused an outage. But, given the amount of Unity’s we run, that has been fairly minor and it hasn't happened at scale or across all of our Unity’s.""We integrated it with vSphere but that integration was "iffy". It was okay but we had a few challenges with it.""I think that they could do a better job of testing on the back-end, for the code revisions. I've heard of some issues down the line where people have upgraded to the latest code and there were bugs in it, and they had to release a subsequent code fix.""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.""You can't use every feature, because it costs in performance. Therefore, you have to choose which features to use to achieve a better environment. That is why customers do not use every feature in Unity."

More Dell Unity XT Cons →

"The upgrading process could be simplified.""I see room for improvement for vSAN just around general hardware compatibility and expanding that sort of matrix.""As a software-based product, it requires a lot of system resources.""The usability is pretty good but it could use a little tweaking on the UI, with a clearer definition of exactly what some of the things do.""The interface is a little complicated, it could be simplified with more graphical gadgets. We have many servers, and the built-in functions, such as rate configuration, are a bit complex.""In a future release, they could add micro-segmentation or security level features integrated into vSAN.""This is quite an expensive solution.""I'd like to see better integration with the Update Manager, with respect to firmware updates for hardware."

More VMware vSAN Cons →

Pricing and Cost Advice
  • "We feel that the pricing is fair and the licensing process was easy for both."
  • "There is always room for negotiation."
  • "The price was slightly higher than others, but competitive, if you consider all the other features that you get from it."
  • "It is a more expensive solution, but it is worth it. You are getting what you paid for."
  • "For pricing, you have to take into account their performance on deduplication and compression in a $/GB comparison."
  • "We have seen a reduction in total cost of ownership (TCO)."
  • "It is a cheaper solution."
  • "Pure Storage is all-flash, so this sometimes tends to make it a bit more expensive in the beginning."
  • More Pure Storage FlashArray Pricing and Cost Advice →

  • "The price is good for commercial grade storage arrays."
  • "This unit is one of the cheapest storage all-flash arrays in the market and it does well for what it is intended. It can be combined for both file and block storage."
  • "Licensing is easy since all the software is included."
  • "This product is cheaper than the EMC VNX solution. It is good for small businesses."
  • "It is shipped with all licensed, included for this product range, no need to buy additional licenses"
  • "The only improvement would be a lower cost per unit/disks, however on the whole we are very pleased with this product."
  • "For costing, you have to have a budget in mind because SANs can be fairly expensive and EMC offers a wide range of products."
  • "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."
  • More Dell Unity XT Pricing and Cost Advice →

  • "The first 1-2 years of purchasing vSAN will be expensive. Thereafter, the longer you are running it, the more cost savings you will have."
  • "Its reasonable, compare with other storage vendors"
  • "Basically, vSAN is a license in addition to that of the classic VMware Vsphere, which is also mandatory."
  • "​I would like to see this technology be made available to smaller businesses, who might benefit from high availability but struggle with the entry fee.​"
  • "Perhaps a bundle, like Essentials, would allow more businesses to make the leap to the product."
  • "We have increased our user productivity."
  • "What made us go with this solution was price point. When you can utilize existing storage infrastructure, and not have to continually purchase new SAN products out there that are going up in price as time goes by, then it's a wonderful thing."
  • "We did consider other hyperconverged solutions. It usually came down to price. vSan was the most cost effective thing."
  • More VMware vSAN Pricing and Cost Advice →

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    Questions from the Community
    Top Answer:Both are great platforms, but if you are considering all flash solutions, I would recommend you to consider Pure… more »
    Top Answer:We consume less physical storage because of the solution’s deduplication and compression.
    Top Answer:We have customers who use a three-year or five-year license. We also have customers who use Evergreen.
    Top Answer:I saw that you have doubts about what you chose. I have a lot of experience with the constructor, honestly I can… more »
    Top Answer:They’re both great solutions and I’ve used both EMC is being VERY aggressive on pricing which may be the undoing of… more »
    Top Answer:First of all the decision should be taken looking at similar products in terms of capacity and performance I will show… more »
    Top Answer:While both run on the vSAN technology from VMware, vSAN needs to be deployed on vSAN ready nodes while VxRail is an… more »
    Top Answer:We found the reduced power consumption with Nutanix Acropolis AOS a very attractive feature. We also like the interface… more »
    Top Answer:HPE SimpliVity is a hyper-converged infrastructure solution that is primarily geared to mid-sized companies. We… more »
    Comparisons
    Also Known As
    EMC Unity, Dell EMC Unity
    vSAN
    Learn More
    Overview

    Pure Storage FlashArray is the world’s first enterprise-class storage array that runs exclusively on the nonvolatile memory express (NVMe) protocol for memory access and storage. It represents a totally state-of-the-art type of storage technology. It offers users shared accelerated storage that delivers cutting-edge features in the realms of performance, simplicity, and consolidation. Pure Storage is fresh and modern today and will be for the next decade. Without forklift upgrades or planned downtime, Pure Storage takes the work out of storage ownership and delivers unprecedented customer satisfaction.

    Pure Storage FlashArray is built with simplicity and reliability in mind. The solution can be implemented and optimized in hours, as opposed to other similar solutions that can take days. It has no moving parts, which removes areas where it could potentially be vulnerable to suffering errors. It is highly stable and gives users the ability to manage system shutdowns in a way that  prevents data loss.

    Benefits of Pure Storage FlashArray

    Some of the benefits of using Pure Storage FlashArray include:

    • A much higher level of speed than similar pieces of technology. Pure Storage FlashArray maximizes the speed at which data can be transferred while at the same time minimizing system latencies that might slow the transfer down. Additionally, it offers users quick memory read and data access speeds.

    • A higher bang for your buck in terms of the storage capabilities you get for the money you pay. They are smaller in size than more standard storage technologies, but they offer flash memory, which enables users to store larger amounts of data than the current standard.

    Reviews from Real Users

    Pure Storage FlashArray is a highly effective piece of storage technology which stands out among its competitors for a number of reasons. Two major ones are its overall robustness and the value that it offers by way of its reliability and ease of use. It provides users with many valuable features that allow them to maximize what they can do with this solution. Pure Storage FlashArray’s reliability and ease of use make it a highly valuable solution. 

    PeerSpot user Prabakaran K., a technical consultant at Injazat Data Systems, notes the robustness of this solution when he writes, "FlashArray has many valuable features. It's very user-friendly and it has high availability, so there is comparatively less downtime. During maintenance, there is no shutdown procedure, so you can directly power off the Array and manage the shutdown process without any data loss, which is a unique feature. Managing replication and data migration is also very easy."

    PeerSpot user Jason D., a cloud solutions architect at a tech services company, notes three features that make this solution valuable when he writes, "We've had different types of storage, and three things of this solution are valuable. The first one is its outstanding performance. The second one is its stability. In the about three years that we've had it, we've had component failures, but we never had a service interruption or any data loss. The third one, which is really critical, is that it is super easy to use in terms of provisioning, storage, and managing the arrays. I'm able to maintain a multi-site environment with a couple of dozen arrays with a single mid-level storage admin."

    Dell EMC Unity XT is one of the best all-flash storage arrays on the market today. Dell EMC Unity XT arrays are designed for performance, optimized for efficiency, and built for a multi-cloud world. In addition, they support digital transformation, enabling businesses to reach the full potential of their data capital quickly and easily. Dell EMC Unity’s All-Flash and Hybrid Flash storage platforms provide the performance, efficiency, enterprise-class software, and virtualization integrations required for running a wide range of virtualized applications.

    Dell EMC Unity XT Features

    Dell EMC Unity XT has many valuable key features, including:

    • Unified storage flexibility: With Dell EMC Unity XT you can consolidate separate storage platforms into a single Unity XT unified storage system via a simple and intuitive (HTML5) management GUI that also connects you to CloudIQ.

    • All-inclusive data protection: Dell EMC Unity XT offers a reliable way to protect application data with all-inclusive data protection services, including snapshots, data-at-rest drive encryption, replication, thin clones, and dynamic pools.

    • Software-defined solutions: Dell EMC Unity XT provides software-defined storage and HA for on-prem and in the cloud solutions.

    • Multi-cloud alignment: With Dell EMC Unity XT you have the ability to build and manage an effective data-first multi-cloud strategy. It allows you to consolidate public and private cloud resources that align with your business goals.

    • Metro node: This feature enables automated business continuity with zero RPO and RTO. It also provides greater flexibility through multi-platform support and replication to any array and has zero performance impact on the storage array.

    • Scalable file system: Dell EMC Unity XT is built with a robust 256TBu file system. The UFS64 file system includes up to 256 independent VMDK clones, 16 thin clones, space efficient snapshots with a simple space reclaim and low IO impact, file system shrink that can reclaim free blocks, simplified Quotas for User, and much more.

    • DevOps integrations: Dell EMC Unity XT supports the Container Storage Interface (CSI) plugin to run Kubernetes workloads.

    Dell EMC Unity XT Benefits

    Some of the benefits of using Dell EMC Unity XT include:

    • High-speed data access
    • Low latency
    • Dual-active controller architecture
    • Multi-cloud
    • Intuitive user interface
    • Cost efficient
    • Solid performance

    Reviews from Real Users

    Below are some reviews and helpful feedback written by Dell EMC Unity XT users.

    A Systems Engineering Manager at a manufacturing company says, "It is definitely one of the most robust, solid, well-performing products that I have dealt with. It is set it and forget it, which is pretty amazing." He also mentions, “We can do both block and file storage on one unit without purchasing a separate device.”

    Peter S., Senior Technical Specialist at a healthcare company, states, “The most valuable feature is reliability. At the end of the day, it just runs. This solution is easy to work with and easy to maintain.”

    PeerSpot user Melvin T., Senior Systems Engineer at Prosperity Bank, explains that the solution is “easy to use and we can add LUNs or space without interruption to end-users. We're able to access it from just about anywhere, as long as we have access to a browser. That feature is really neat because sometimes we will go to a different data center or a different site, and if we need to access it to see a LUN or to see any type of storage, we can do that. That's one of the big takeaways with Unity."

    VMware vSAN is a software-defined storage product that is used in collaboration with VMware ESXi hypervisor and that provisions and manages storage based on policies, regardless of the underlying hardware. The solution enables you to prime your business for growth through its seamless evolution (it is integrated with vSphere and requires no new tools), its flexibility, and its multi-cloud capabilities. As an industry-leading software, VMware vSAN provides high levels of performance with minimal impact on CPU and memory.

    VMware vSAN Features

    VMware vSAN has many valuable key features. Some of the most useful ones include:

    • Storage policy-based management (SPBM): VMware vSAN supports storage policy-based management for automated management of storage profiles.
    • Software-defined data-at-rest encryption: With this VMware vSAN feature, you can prevent unauthorized access of data at rest.
    • Multiple nodes: VMware vSAN provides clusters that can include as few as 2 nodes or as many as 64 nodes.
    • High security and availability: VMware vSAN offers stretched clusters, allowing more than one virtualization host server to be used in the same setup, promoting higher security as well as availability.
    • Deduplication: VMware vSAN’s deduplication compresses data to ensure efficient storage management and security.
    • HCI mesh updates: VMware vSAN clusters can share storage capacity with non-HCI Sphere clusters and can adopt HCI without having to scale computing resources and storage or replace existing servers.
    • Simplified file services: With VMware vSAN’s file services, backup of file shares is simplified. You can use APIs that allow backup and recovery software vendors to integrate with your VMware vSAN file services, which enables backup software to track new data and add scalability enhancements to files.

    VMware vSAN Benefits

    There are many benefits to implementing VMware vSAN. Some of the biggest advantages the solution offers include:

    • Reduced total cost of ownership (TCO): VMware vSAN helps you reduce upfront costs for businesses because it can be easily deployed on inexpensive x86 servers. In addition, its highly scalable infrastructure and quick deployment also save organizations time and money, making it an efficient storage solution. 
    • Good manageability: VMWare vSAN is easy to set up, manage, and provision, without sacrificing performance. 
    • Scalability: VMware vSAN is agile and allows administrators to scale storage on demand, quickly, and efficiently via policies and rules.
    • Simplicity: VMWare vSAN is simple to configure since it is embedded in the vSphere hypervisor. Installing it using the vSphere Web Client can be done quickly. 
    • Reduced risk: VMWare vSAN reduces the risk associated with digital transformations by utilizing existing tools, skill sets, and solutions.

    Reviews from Real Users

    Below are some reviews and helpful feedback written by PeerSpot users currently using the VMware vSAN solution.

    PeerSpot user Yves S., CEO, Cloud Evangelist at Comdivision Consulting GmbH, says, “vSAN gives us a lot of advantages when we need to expand resources. We have an overall larger host infrastructure, and we split that up for specific customer test and use cases. In that specific scenario, we can easily add more hosts or reduce the number of hosts in the environment.”

    A reviewer who works in Infrastructure Security explains, “The ease of use is great. The initial setup and upgrade process was pretty straightforward. And, technical support is great.”

    Laurent N., Director at Softlogic, comments, "The feature that I have found most valuable is that it is easy to deploy. It is easy to create and delete virtual servers. It is easy to create the load balancing and the clustering."

    Sample Customers
    Nielsen, Lamar Advertising, LinkedIn, Betfair, UT-Dallas
    Draper, Rio Grande Pacific, Royal Victoria Regional Health Centre
    Read Some Case Studies At Home Cloud CaribCINgroupDiscovery Check out the Rest of our Customer Stories Here
    Top Industries
    REVIEWERS
    Financial Services Firm19%
    Healthcare Company12%
    Manufacturing Company10%
    Computer Software Company8%
    VISITORS READING REVIEWS
    Educational Organization32%
    Computer Software Company12%
    Manufacturing Company8%
    Financial Services Firm8%
    REVIEWERS
    Financial Services Firm18%
    Healthcare Company13%
    Manufacturing Company11%
    Energy/Utilities Company6%
    VISITORS READING REVIEWS
    Educational Organization64%
    Computer Software Company6%
    Manufacturing Company4%
    Government3%
    REVIEWERS
    Computer Software Company16%
    Comms Service Provider12%
    Financial Services Firm10%
    Healthcare Company10%
    VISITORS READING REVIEWS
    Educational Organization45%
    Computer Software Company9%
    Manufacturing Company6%
    Financial Services Firm5%
    Company Size
    REVIEWERS
    Small Business27%
    Midsize Enterprise16%
    Large Enterprise57%
    VISITORS READING REVIEWS
    Small Business17%
    Midsize Enterprise41%
    Large Enterprise42%
    REVIEWERS
    Small Business30%
    Midsize Enterprise24%
    Large Enterprise46%
    VISITORS READING REVIEWS
    Small Business10%
    Midsize Enterprise69%
    Large Enterprise21%
    REVIEWERS
    Small Business34%
    Midsize Enterprise22%
    Large Enterprise44%
    VISITORS READING REVIEWS
    Small Business13%
    Midsize Enterprise53%
    Large Enterprise34%
    Buyer's Guide
    All-Flash Storage
    March 2024
    Find out what your peers are saying about Dell Technologies, NetApp, Pure Storage and others in All-Flash Storage. Updated: March 2024.
    763,955 professionals have used our research since 2012.

    Dell Unity XT is ranked 4th in All-Flash Storage with 29 reviews while VMware vSAN is ranked 3rd in HCI with 12 reviews. Dell Unity XT is rated 8.4, while VMware vSAN is rated 8.4. The top reviewer of Dell Unity XT writes "Price / Quality ratio is good and since OE 5.03 code the array family reached a rather good maturity level". On the other hand, the top reviewer of VMware vSAN writes "Gives us a lot of advantages when we need to expand resources". Dell Unity XT is most compared with Dell PowerStore, NetApp AFF, HPE Nimble Storage, IBM FlashSystem and Dell PowerMax NVMe, whereas VMware vSAN is most compared with VxRail, Microsoft Storage Spaces Direct, HPE SimpliVity, Red Hat Ceph Storage and NetApp AFF.

    We monitor all All-Flash Storage reviews to prevent fraudulent reviews and keep review quality high. We do not post reviews by company employees or direct competitors. We validate each review for authenticity via cross-reference with LinkedIn, and personal follow-up with the reviewer when necessary.