OpenNebula vs VMware Aria Automation comparison

OpenNebula and Broadcom are both solutions in the Cloud Management category. OpenNebula is ranked #9 with an average rating of 7.0, while Broadcom is ranked #3 with an average rating of 7.9. OpenNebula holds a 2.5% mindshare in CM, compared to Broadcom’s 5.8% mindshare. Additionally, 100% of OpenNebula users are willing to recommend the solution, compared to 94% of Broadcom users who would recommend it.

OpenNebula

Read 15 OpenNebula reviews

2,805 Views
2,665 Comparison Views

100% willing to recommend

VMware Aria Automation

Read 172 VMware Aria Automation reviews

9,092 Views
5,001 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: March 2026).

Buyer's Guide

OpenNebula vs. VMware Aria Automation

March 2026

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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

9th

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

3rd

Average Rating

8.0

Reviews Sentiment

6.8

Number of Reviews

172

Ranking in other categories

Configuration Management (8th), Network Automation (6th), Cloud Security Posture Management (CSPM) (19th), Cloud Infrastructure Entitlement Management (CIEM) (5th)

Mindshare comparison

As of March 2026, in the Cloud Management category, the mindshare of OpenNebula is 2.5%, down from 8.2% compared to the previous year. The mindshare of VMware Aria Automation is 5.8%, down from 11.2% compared to the previous year. It is calculated based on PeerSpot user engagement data.

Cloud Management Mindshare Distribution
Product	Mindshare (%)
VMware Aria Automation	5.8%
OpenNebula	2.5%
Other	91.7%

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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VasilisGiannitsiotis

Senior IT at ITSolutions

Automation has streamlined complex financial workflows but still needs more intuitive orchestration

Something to improve in VMware Aria Automation would be related to VCF 9, as I do not know what it is trying to bring because they exposed it as the solution of everything. So VCF 9 will bring VCF Automation and VCF Operations, the new product line of VMware. I have not seen what this brings or what else it includes. Maybe in the area of vRealize Orchestrator, this would be beneficial because VRO can do everything. Perhaps a more user-friendly way to use that tool would be helpful because the possibilities there are endless. I am looking for more user-friendly navigation in VMware Aria Automation.

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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

"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."

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

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

"It makes maintenance very easy and stress-free for our teams."

"OpenNebula is lightweight, stable, and easy to customize."

"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."

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

"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."

More OpenNebula pros

"I can build machines quickly and deploy them from a central location to whichever worldwide datacenter we need."

"The most valuable feature is being able to deploy a virtual machine from a low level. We can automate everything including network configuration, firewall configuration, storage, storage attachment, OS deployment, middleware, and so forth."

"It is very stable, especially for high availability features."

"The most valuable features are that it's multi-tenant and the ability for scale."

"We use it to deploy databases and testing environments. It spins up quickly and also break down fast."

"The automation functionality has been most valuable. With a click of a button, we are able to automate provisioning, the build of new hardware and apply patches. These are all extremely important and differentiated tasks that can be automated in SaltStack."

"The solution is user-friendly and intuitive."

"The automation of the redundant tasks and the implementation of ServiceNow are huge for us..."

More VMware Aria Automation pros

Cons

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

"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."

"There are small things that are hard. For example, making sure that it is going to be installable on public clouds."

"An area for improvement in OpenNebula is the number of features it has. The solution doesn't have that many cloud features compared to other solutions. You'd say, "Okay, simplicity over a rich feature list?" Some say, "No, I need a big machine or a cloud interface for my customers to manage resources. I don't have to go and do it for them." Some people do it that way, and it works, but I'd like to improve the limited features in OpenNebula."

"There are no payment gateways in OpenNebula."

"The web interface could be better. It's not very difficult to use, but there's room for enhancement."

More OpenNebula cons

"One of the features that's a struggle today is some of the public cloud extensibility. Some of the plugins that are native to vRA and vRO, I'd like to see them come out earlier for vRO. I understand that in vRA, the plugins are a little bit more polished because the VRA is the GUI. But we'd like to see them released earlier in vRO, prior to a GUI being released. Azure, for example, is a public cloud provider but we have some instability issues with the plugin in vRO. It's okay for us if we separate the vRA from vRO plugin releases. So I'd like to see some increased stability in some of those public cloud plugins."

"It is difficult to set up."

"This solution could be integrated with more hardware for an improved offering."

"The integration is a bit tight. I need the right package to use it properly. The new automation processes for VMware are messy, and support could be better."

"It is too broad scale and complicated. It takes too many clicks to do things."

"The stability is okay, but could be improved. We sometimes receive strange errors, which can only be solved with specialists."

"We would like them to improve the automation part. This is an upcoming area that we would like to focus on."

"The high price of the tool is an area of concern where improvements are required."

More VMware Aria Automation cons

Pricing and Cost Advice

"The solution is open source so 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."

"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."

"VRA is very expensive but OpenNebula is free."

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

"OpenNebula gives good value for money."

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

"So much can be done with the Open Source side, and especially for smaller shops. I personally think the pricing for Enterprise is hard to justify."

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

"There is confusion between licensing levels. There are three different licensed versions of vRealize Automation, and there are different things which can happen in each of them."

"The solution is pretty expensive but provides good workload management."

"vRealize automation really should be a front door to the whole VMware suite of products."

"It is an open-source product."

"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."

More VMware Aria Automation pricing and cost advice

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Top Industries

By visitors reading reviews

Financial Services Firm

10%

Computer Software Company

10%

University

Comms Service Provider

Financial Services Firm

11%

Manufacturing Company

10%

Computer Software Company

Government

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

By reviewers
Company Size	Count
Small Business	7
Midsize Enterprise	6
Large Enterprise	3

By reviewers
Company Size	Count
Small Business	33
Midsize Enterprise	24
Large Enterprise	130

Questions from the Community

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 is your primary use case for OpenNebula?

Previously, we were using VMware, but recently, we've started using OpenNebula for cloud management. As a big cloud provider, it helps give customers increased control over their clusters. We use L...

See all answers

What advice do you have for others considering OpenNebula?

I recommend it, especially if you need a management interface for a small to medium private cloud. I would rate OpenNebula an eight out of ten.

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 24% of the time

Nutanix Cloud Manager (NCM) vs OpenNebula

Compared 9% of the time

VMware Cloud Director vs OpenNebula

Compared 6% of the time

Morpheus vs OpenNebula

Compared 6% of the time

VMware Aria Operations vs OpenNebula

Compared 5% of the time

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Red Hat Ansible Automation Platform vs VMware Aria Automation

Compared 11% of the time

Morpheus vs VMware Aria Automation

Compared 6% of the time

VMware Aria Operations vs VMware Aria Automation

Compared 6% of the time

Nutanix Cloud Manager (NCM) vs VMware Aria Automation

Compared 3% of the time

Snyk vs VMware Aria Automation

Compared 1% of the time

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Product Reports

Buyer's Guide

OpenNebula

March 2026

Download OpenNebula product report

Buyer's Guide

VMware Aria Automation

February 2026

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.

Broadcom

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

March 2026

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