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OpenNebula vs VMware Aria Automation comparison

OpenNebula and VMware are both solutions in the Cloud Management category. OpenNebula is ranked #6 with an average rating of 8.5, while VMware is ranked #1 with an average rating of 7.8. OpenNebula holds a 7.1% mindshare in CM, compared to VMware’s 11.8% mindshare. Additionally, 100% of OpenNebula users are willing to recommend the solution, compared to 94% of VMware users who would recommend it.
OpenNebula
Read 15 OpenNebula reviews
  • 3,230 Views
  • 1,762 Comparison Views
100% willing to recommend
VMware Aria Automation
Read 170 VMware Aria Automation reviews
  • 4,998 Views
  • 2,182 Comparison Views
94% willing to recommend
 

Comparison Buyer's Guide

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Executive SummaryUpdated on Dec 17, 2024

VMware Aria Automation and OpenNebula are competitors in the cloud management space. VMware Aria Automation holds the upper hand with extensive automation features and robust integration capabilities, which can be critical for enterprises seeking comprehensive cloud management.

Features: VMware Aria Automation's standout features include mass parallel administration, remote CLI access, and vendor-specific integrations such as SaltStack for faster deployment. It offers advanced orchestration capabilities and is particularly strong in cloud management. OpenNebula's simplicity and lightweight design are key features, making it highly suitable for straightforward deployments. It effectively supports various hypervisors and is preferred for on-premises deployments.

Room for Improvement: VMware Aria Automation requires better documentation, more intuitive UI, and enhanced template management. There's also a need for improved integration with platforms like Azure. OpenNebula needs enhancements in documentation and managing complex environments, alongside improvements in its marketplace and template creation support.

Ease of Deployment and Customer Service: VMware Aria Automation supports both on-premises and hybrid environments, offering knowledgeable technical support, although it can vary in responsiveness due to customization capabilities. OpenNebula is user-friendly for on-premises deployments and relies on community-based support, which is collaborative but lacks direct support compared to VMware's tiered system.

Pricing and ROI: VMware Aria Automation is a paid product and is often seen as expensive but provides valuable features and integration capabilities that can justify the cost for enterprises. It offers potential ROI through improved automation and reduced deployment times. OpenNebula, being open-source, offers a cost-effective alternative with lower overhead, providing good value for those seeking flexibility without significant investments, though potentially offering less enterprise-level functionality.

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To learn more, read our detailed OpenNebula vs. VMware Aria Automation Report (Updated: June 2025).
Buyer's Guide
OpenNebula vs. VMware Aria Automation
June 2025
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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

OpenNebula
Ranking in Cloud Management
6th
Average Rating
8.2
Reviews Sentiment
7.0
Number of Reviews
15
Ranking in other categories
No ranking in other categories
VMware Aria Automation
Ranking in Cloud Management
1st
Average Rating
8.0
Reviews Sentiment
6.8
Number of Reviews
170
Ranking in other categories
Configuration Management (7th), Network Automation (3rd), Cloud Security Posture Management (CSPM) (17th), Cloud Infrastructure Entitlement Management (CIEM) (4th)
 

Mindshare comparison

As of June 2025, in the Cloud Management category, the mindshare of OpenNebula is 7.1%, up from 6.7% compared to the previous year. The mindshare of VMware Aria Automation is 11.8%, up from 11.5% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Cloud Management
 

Featured Reviews

FOURES Jean-Philippe - PeerSpot reviewer
Reliable, simple to manage, and offers great technical support
The support of VXLAN fits with our network management. Thanks to this we can propose mixed solutions using virtual resources on OpenNebula and bare metal servers hosted in our facilities linked to each other on the sale network. This use case is very useful when some applications need bare metal power (Kubernetes workers, huge databases, AI models computations, et cetera). The cluster management is very useful for splitting our different clusters (mutual vs dedicated). We can manage deployments and capacity planning without pain. The API is also really simple and it helped us to develop the Terraform provider to manage OpenNebula like any other cloud infrastructure.
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Le Quang Long - PeerSpot reviewer
Significantly streamlined operations with good automation that helps with simplifying workflows
It helps me build a big catalog and provide it to my end users. It helps us automate the workflow of creating many VMs and the TensorFlow key method. I do not meet many people to operate it live beforehand. It operates for both of my products, but as a product, it is complicated to integrate and automate with other products.
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Quotes from Members

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

Pros

"The most valuable feature of OpenNebula is that it scales very well."
"The live migration feature has been great and is something we use very often."
"What's best about OpenNebula that people like is that it's easy to deploy. It's also easy to manage. It's interesting because people choose OpenNebula over other solutions because of the ease of management."
"I also like the ability to build custom functions. I can define a function where I have two types of views and configure the dependencies. The virtual data centers concept allows me to define users. If a user wants to join certain kinds of machines, the host and the other user won't see them. It gives me the flexibility to define multiple views and data centers in one place."
"For the entire data center, as a private cloud, I believe that user management, expert management, and the virtual data center is completely magic for the users."
"The solution provides templates for configurations that can easily be exchanged to VMs."
"OpenNebula is lightweight, stable, and easy to customize."
"It's easy to integrate OpenNebula with our IT systems."
More OpenNebula pros
"value; It does a lot of things automatically that would take our group, when we're already strapped for time, a lot of time to go through and clean stuff out of databases and the like."
"The most valuable feature is, instead of doing the VMotion manually, we have automated everything with a script, using vRealize. That means I don't need to think about things like compatibility. The system will do everything for me and just give me a report."
"Scalability is probably the best part about it. You can take things that you've already defined, that you've already built once, and build them again multiple times, without significant effort."
"vRA is user-friendly. It has the same layout and walk-through GUI, similar to other VMware products."
"We also use it to pre-install the applications that the people selected when they ordered the machine, so they get a fully functional machine."
"It provides visibility into the VM space."
"The solution has helped us to increase infrastructure agility, mostly because, in addition to it being able to do its thing on its own, it has tie-ins to other parts of our CICD pipeline. We use Jenkins for our build process which, of course, vRA has plugins for, to be able to integrate with it. We use Chef and there is the Chef build as part of our image that we standardized to deploy, and that can tie in with our section of the pipeline that it does for applications."
"I can make a blueprint with an Active Directory deployment. With everything prepared, people can start installing our products."
More VMware Aria Automation pros
 

Cons

"They have been saying for the past two and a half years that they would develop a feature to hot-add RAM and CPU, but it does not work."
"It should have a simple REST API like most other tools. It's the industry standard format. An XML-RPC API gives you an XML document that you have to convert and then do something with that. REST API endpoint provides outputs in a JSON document. I would also like to see support for user data or heat templates, which OpenStack offers, but OpenNebula doesn't have this yet."
"The UI, monitoring, and alerting could benefit from further improvements."
"Hosting platforms are limited so the deployment process needs improvement."
"The storage feature that they have is a bit confusing."
"The web interface could be better. It's not very difficult to use, but there's room for enhancement."
"There are small things that are hard. For example, making sure that it is going to be installable on public clouds."
"As with all enterprise software licensing, the pricing is not intuitive and must be negotiated; grandfathered contracts are better than anything offered today."
More OpenNebula cons
"I would like to see support for Google Cloud and Azure. Because they don't support Google and Azure today, we need something that's cohesive with our entire landscape. There is a gap right now with VMware. If you want support for these environments, you have to go elsewhere right now."
"I'm not wanting any particular feature; but there should be cost reductions. VMware comes at a high cost, and that's why we are in the process of transitioning to a more affordable alternative."
"They should make it a little bit more dynamic, a little bit easier to deal with large-scale AD deployments. They need to make it a little more enterprise-ready. That is the one thing that kills us."
"It has some limitations for scalability, especially for remote data center management. For some components, everything need to be centralized."
"I would like to see more out-of-the-box blueprints and workflows for the rest of VMware's products and its portfolio."
"The initial setup was complex from beginning to delivery. The current version is a bit more complex than version 7 to deploy."
"They should concentrate on navigation and service improvements."
"It would be nice in the next release if they added in tool tips. Whether you're putting it together, adding a blueprint, or you're making a change in the system, highlighting or selecting something and having it tell you what it does or what it will do would be nice. Because it's such a complex system, it's hard to work with unless you've been using it for years to know what everything is doing."
More VMware Aria Automation cons
 

Pricing and Cost Advice

"We use the Community Edition, rather than the Enterprise Edition."
"OpenNebula gives good value for money."
"The solution is open source so is free."
"VRA is very expensive but OpenNebula is free."
"The licensing for OpenNebula used to be free, but now it's no longer free. A customer contacted me asking to move to another provider because of the changes in the licensing terms for OpenNebula. I have no information on how much the OpenNebula license is because the customer pays for it, and I only do the integration."
"OpenNebuoa has recently come up with a new subscription model that is economical and a lot of new customers are choosing this as it is an easy subscription model."
"The pricing for this solution is roughly 20% lower than the competitive products in the market."
"The pricing is very high."
"It is an open-source product."
"The tool is expensive since it is an enterprise product."
"The solution is free of cost."
"We have seen significant ROI. We used to have physical servers, it took 90 days to get a server, order it, buy it, and get it in. We have it down to 10 minutes, building a server with virtualization, and now that's too slow. So, we let the customer do it at their speed. Therefore, it is pretty much up in a couple of minutes and they have a server."
"They should provide one license for all the sub-products."
"A simplified version for small businesses would be good."
More VMware Aria Automation pricing and cost advice
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Top Industries

By visitors reading reviews
Computer Software Company
21%
University
10%
Financial Services Firm
9%
Comms Service Provider
7%
Financial Services Firm
14%
Computer Software Company
12%
Manufacturing Company
9%
Government
9%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
 

Questions from the Community

What do you like most about OpenNebula?
The live migration feature has been great and is something we use very often.
See all answers
What is your experience regarding pricing and costs for OpenNebula?
OpenNebula gives good value for money.
See all answers
What needs improvement with OpenNebula?
The web interface could be better. It's not very difficult to use, but there's room for enhancement. Another area for improvement is the integration with hardware to manage the lower layer of the n...
See all answers
What's the difference between VMware vRA (automation) and vROps (operations)?
vROP is a virtualization management solution from VMWare. It is efficient and easy to manage. You can find anything you need from the software interface. It provides complete visibility over applic...
See all answers
Is there any way to try VMware Aria Automation for free?
When it comes to VMware Aria Automation, you have three choices for free runs: Hands-on Lab (HOL) Advanced lab A free trial I cannot describe in detail the second and third options as my company ...
See all answers
Which sectors can benefit the most from VMware Aria Automation?
I was looking at VMware Aria Automation case studies recently and I got the impression that three main kinds of companies were using it most often: Social organizations Financial institutions and ...
See all answers
 

Comparisons

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Nutanix Cloud Manager (NCM) vs OpenNebula
Compared 13% of the time
VMware Cloud Director vs OpenNebula Logo
VMware Cloud Director vs OpenNebula
Compared 9% of the time
Sangfor HCI - Hyper Converged Infrastructure vs OpenNebula Logo
Sangfor HCI - Hyper Converged Infrastructure vs OpenNebula
Compared 3% of the time
Morpheus vs OpenNebula Logo
Morpheus vs OpenNebula
Compared 3% of the time
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Red Hat Ansible Automation Platform vs VMware Aria Automation Logo
Red Hat Ansible Automation Platform vs VMware Aria Automation
Compared 15% of the time
VMware Aria Operations vs VMware Aria Automation Logo
VMware Aria Operations vs VMware Aria Automation
Compared 15% of the time
Morpheus vs VMware Aria Automation Logo
Morpheus vs VMware Aria Automation
Compared 11% of the time
VMware Cloud Director vs VMware Aria Automation Logo
VMware Cloud Director vs VMware Aria Automation
Compared 10% of the time
HashiCorp Terraform vs VMware Aria Automation Logo
HashiCorp Terraform vs VMware Aria Automation
Compared 4% of the time
More VMware Aria Automation Competitors
 

Product Reports

Buyer's Guide
OpenNebula
May 2025
OpenNebula reportDownload OpenNebula product report
Buyer's Guide
VMware Aria Automation
May 2025
VMware Aria Automation reportDownload VMware Aria Automation product report
 

Also Known As

No data available
VMware vRealize Automation, vRA, VMware DynamicOps Cloud Suite, SaltStack
 

Overview

OpenNebula provides the most simple but feature-rich and flexible solution for the comprehensive management of virtualized data centers to enable private, public and hybrid IaaS clouds. OpenNebula interoperability makes cloud an evolution by leveraging existing IT assets, protecting your investments, and avoiding vendor lock-in.

OpenNebula is a turnkey enterprise-ready solution that includes all the features needed to provide an on-premises (private) cloud offering, and to offer public cloud services.

OpenNebula

VMware Aria Automation is a cloud management tool that allows companies to simplify their cloud experience through a modern automation platform. The solution is designed to deliver self-service clouds, multi-cloud automation with governance, and DevOps-based security and infrastructure management. It helps organizations improve IT agility, efficiency, and productivity through its various features. 

VMware Aria Automation has multiple use cases that include the following:

  • Self-service multi-cloud: VMware Aria Automation can be used to deliver consistent self-service consumption. Another use case in this area is for delivering infrastructure across VMware Clouds as well as public clouds.

  • Multi-cloud governance: The solution can be used to manage cost, performance, networking, configuration, and security at scale for multi-cloud environments. VMware Aria Automation offers all this with an everything-as-code approach.

  • DevOps for infrastructure: Through VMware Aria Automation, companies can enable a powerful infrastructure as code platform with support for iterative development and infrastructure pipelining.

  • Kubernetes automation: Users can utilize VMware Aria Automation to automate the management of Kubernetes clusters and namespaces with support for vSphere with Tanzu.

  • Security operations: VMware Aria Automation facilitates event-driven automation to deliver full-service IT system compliance enforcement and vulnerability remediation.

VMware Aria Automation Features

VMware Aria Automation has various features that allow users to easily perform operations. Some of the solution's capacities include:

  • VMware Cloud agnostic template: This feature allows organizations to use a single cloud template to deploy with Infrastructure as a Code. Deployment options include VMware Cloud as well as major public cloud platforms such as Amazon AWS, Microsoft Azure, Google Cloud, and more.

  • Extensibility and customization: This VMware Aria Automation feature allows users to get full extensibility and customization. This can be achieved through Aria Automation Orchestrator, Action-Based Extensibility (ABX), and built-in integrations with common third-party tools.

  • Self-service multi-cloud: This feature enables users to request and provision infrastructure resources. It can be done across clouds using a unified and consistent Infrastructure as a Service (IaaS) consumption layer, idempotent REST API, and self-service catalog.

  • Centralized policies and governance: VMware Aria Automation offers a feature for users to manage multiple clouds with templatized cloud and policy definition, automated remediation, and cloud environment visibility.

  • Configuration management: Through this feature of the product, day 1 and 2 control can be achieved for virtualized and cloud environments. This can be done with intuitive configuration automation, compliance enforcement, and vulnerability remediation.

  • Infrastructure pipelining: Through this feature, organizations can access user-friendly release automation pipelines. They can be specifically tailored for CI/CD in infrastructure use cases.

VMware Aria Automation Benefits

VMware Aria Automation offers its users various benefits. Some of the biggest advantages that the solution brings to companies that utilize it include:

  • VMware Aria Automation provides faster time to market for companies through offloading manual tasks with advanced workflows and agile templating.

  • The solution offers high levels of security and control.

  • This product is suitable for beginners, as it offers a self-service consumption experience for users.

  • VMware Aria Automation accelerates innovation through Infrastructure as Code and DevOps principles.

  • The product provides users with flexibility, as it is compatible with the most popular public cloud solutions.

  • The solution offers fast deployment because of all natively integrated functions.

Reviews from Real Users

Awais J., CTO/CEO at a tech services company, likes VMware Aria Automation because it saves a lot of time, provides more visibility, and has extensive automation capabilities.

An IT consultant at a government rates VMware Aria Automation highly because the product gives you flexibility to analyze and consume resources.

VMware
 

Sample Customers

Akamai, BBC, Fermilab, Terradue, Surf Sara, Produban, Netways, ESA, China Mobile, BlackBerry, Deloitte, Fuze, Telefonica, Trivago, Nokia, Encore Tech, Beeks.
Rent-a-Center, Amway, Vistra Energy, Liberty Mutual
Buyer's Guide
OpenNebula vs. VMware Aria Automation
June 2025
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