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 #2 with an average rating of 7.8. OpenNebula holds a 6.8% mindshare in CM, compared to VMware’s 11.1% 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

3,157 Views
1,697 Comparison Views

100% willing to recommend

VMware Aria Automation

Read 170 VMware Aria Automation reviews

4,692 Views
2,059 Comparison Views

94% willing to recommend

OpenNebula

VMware Aria Automation

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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.

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

Ranking in other categories

No ranking in other categories

VMware Aria Automation

Ranking in Cloud Management

2nd

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 July 2025, in the Cloud Management category, the mindshare of OpenNebula is 6.8%, up from 6.8% compared to the previous year. The mindshare of VMware Aria Automation is 11.1%, down from 11.4% compared to the previous year. It is calculated based on PeerSpot user engagement data.

Cloud Management

Featured Reviews

FOURES Jean-Philippe

Products Manager at a tech services company with 501-1,000 employees

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

Cloud Engineer at BIDV - Ngân hàng TMCP Đầu tư & Phát triển Việt Nam

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 ability to use it almost like a public cloud for an organization is a big asset, as it will create a value proposition and can control costs in a great way."

"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."

"OpenNebula has very good integration with SAP Storage."

"It's easy to integrate OpenNebula with our IT systems."

"The solution provides templates for configurations that can easily be exchanged to VMs."

"OpenNebula is easy to deploy and manage compared to other solutions like OpenStack."

"The live migration feature has been great and is something we use very often."

"The service feature appeals most to us, thus it is the most valuable."

More OpenNebula pros

"We needed vRA to easily integrate with our hypervisor, orchestration, security (tenant segmentation, PCI), workflows, custom code, and internal monitoring/management tools. Since we didn’t have time to develop our own web front-end during the development sprints, vRA saved considerable time and resource cycles. Its ability to easily integrate with all of the VMware cloud products as well as public cloud providers, like AWS and Azure, out-of-the-box, makes it an even more powerful tool."

"It helps us automate the workflow of creating many VMs and the TensorFlow key method."

"The IT support for developers is nice as well because they are able to manage the environment themselves."

"It is possible to completely automatize the creation and removal of a virtual machine."

"The automation function itself and how to group and publish those groupings is quite easy for customers to learn with Aria."

"The big benefit is it will spin up VMs quickly so it would take about 13 to 15 minutes to deploy a virtual machine. Whereas, if I were doing it based on an email from users who are requesting VMs, it might take time for me to hear back from them. This could be anywhere from an hour to a day."

"We have it deployed in a highly-available environment and scalability is nice because we just had another ESX host and then we are able to increase the capacity."

"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."

More VMware Aria Automation pros

Cons

"There are no payment gateways in OpenNebula."

"The front-facing API can be improved to support lots of requests when the platform is huge with lots of virtual resources."

"The UI, monitoring, and alerting could benefit from further improvements."

"The protocol for clusterization is rough and doesn't work well."

"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."

"Hosting platforms are limited so the deployment process needs improvement."

"Most of the competitors are offering some sort of billing software to transform their installation to work as a small-sized public cloud, but those offerings from OpenNebula are still missing."

"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

"Our current use cases aren't very complex, but as our environment grows, we're seeing a greater need for automation. We're considering expanding our automation efforts, especially since other competitive products are starting to offer similar features."

"I would like to see more out-of-the-box blueprints and workflows for the rest of VMware's products and its portfolio."

"I would like them to improve the product training."

"In terms of usability, It has had its challenges. It requires a lot of custom code to integrate into our environment. It can take a little while to get it to do what we want, takes some code instead of having built-in functionality. Part it is how we use it. It would be a lot easier to use in a greenfield scenario versus brownfield, which is the way we using it."

"Multitenancy management is a little bit difficult to do, so it is an area that can be improved."

"We still struggle a little bit with the configuration as far as making sure that we have all the endpoints where they need to be, because that's not as agile as we'd like in the back-end. We're working towards that with our DevOps teams to make sure that we're touching the right endpoints and getting the right data."

"They could extend the ability to use vRealize Orchestrator Automation for organizations with multiple tenants. It should be easier to operate and extend different capabilities from vRealize Orchestrator. Currently, it's difficult to build advanced services in Aria Automation because you need to use the vRealize Orchestrator."

"It was a complex setup. We had to use the consultant from VMware to make the solution work well."

More VMware Aria Automation cons

Pricing and Cost Advice

"The solution is open source so is free."

"OpenNebula gives good value for money."

"VRA is very expensive but OpenNebula is free."

"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."

"We use the Community Edition, rather than the Enterprise Edition."

"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."

"We do plan to see ROI with any new implementation of new technologies being implemented within our environment."

"It is an open-source product."

"This is an expensive product and the high price is starting to become an issue for us."

"The pricing is very high."

"The cost of the solution is reasonable for us. Although it is relatively high, we prioritize stability and integration over cost."

"The tool is expensive since it is an enterprise product."

"It is pricey for what you get."

"Better pricing is always handy, but I feel it's at the right price point."

More VMware Aria Automation pricing and cost advice

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Top Industries

By visitors reading reviews

Computer Software Company

20%

University

Financial Services Firm

Comms Service Provider

Financial Services Firm

13%

Computer Software Company

12%

Manufacturing Company

10%

Government

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

CloudStack vs OpenNebula

Compared 49% of the time

Nutanix Cloud Manager (NCM) vs OpenNebula

Compared 12% of the time

VMware Cloud Director vs OpenNebula

Compared 9% of the time

Morpheus vs OpenNebula

Compared 4% of the time

Sangfor HCI - Hyper Converged Infrastructure vs OpenNebula

Compared 3% of the time

More OpenNebula Competitors

Red Hat Ansible Automation Platform vs VMware Aria Automation

Compared 16% of the time

VMware Aria Operations vs VMware Aria Automation

Compared 14% of the time

Morpheus vs VMware Aria Automation

Compared 11% of the time

VMware Cloud Director vs VMware Aria Automation

Compared 9% of the time

HashiCorp Terraform vs VMware Aria Automation

Compared 4% of the time

More VMware Aria Automation Competitors

Product Reports

Buyer's Guide

OpenNebula

June 2025

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Buyer's Guide

VMware Aria Automation

June 2025

Download 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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