What is our primary use case?
Hyper-V is utilized across various resources. For example, Azure utilizes Hyper-V as its hypervisor in the backend, so essentially, Azure's cloud services run on Hyper-V. Thus, Hyper-V plays a crucial role in cloud computing environments.
How has it helped my organization?
Hyper-V functions as a feature within Windows Server editions, like Windows Server 2012 Standard, where it's included by default. With the purchase of the operating system, you gain access to multiple services such as software-defined storage, Hyper-V for virtualization, cluster computing, containerization with Docker and Kubernetes, and data deduplication, among others.
Hyper-V allows for secure, isolated virtual environments for running applications, offering scalability, portability, and the ability to configure network settings, making it a significant asset for virtualization.
So, virtualization with Hyper-V is crucial. Consider Azure Stack HCI, which relies exclusively on Hyper-V for operation, hosting all workloads on virtual machines. Without Hyper-V, Azure Stack HCI wouldn't function. Hyper-V's importance extends to Azure cloud as well; it's fundamental from Microsoft's perspective.
When we look beyond Microsoft to other cloud services like those offered by AWS or VMware, it's clear they depend on their own hypervisors to deliver similar services. Therefore, hypervisors, including Hyper-V, play a crucial role in today's cloud infrastructure.
However, I also faced a challenge with Hyper-V. One challenge is related to VM configuration files. In earlier Hyper-V versions, these files were in XML format, which allowed easy editing if there were any parameter mismatches or errors. However, the newer format, BCM, doesn't have any external tools available for editing the configuration file.
So, if a customer encounters an issue with the configuration file, they might need to create a support ticket with Microsoft. Microsoft can then use an internal tool to analyze the BCM file and identify the problem. This can be a bit inconvenient for users, but overall, Hyper-V remains user-friendly and functional in most operational areas. I wouldn't say there are many challenges otherwise.
What is most valuable?
Live Migration is the most significant feature of VM management. It allows for fault tolerance and scalability while maintaining reliability. Even if a host node goes down unexpectedly, like during a mistaken shutdown, the service continues running smoothly. The shutdown request goes to the service control manager, which gracefully stops services and prepares them for migration.
Hyper-V VMM service then initiates a live migration of all VMs on that node to another available node, without impacting users. This ensures VMs are seamlessly transferred while the original node undergoes maintenance or experiences an outage. So, Live Migration is the most convenient feature for managing virtual machines.
What needs improvement?
There's room for improvement in Hyper-V. One area I've personally encountered issues with is live migration. Sometimes during live migrations, the process gets stuck in a certain state. This can happen with replication as well. It's not necessarily a major problem, but at times, the error messages aren't very informative. They don't clearly explain why the migration failed.
If Hyper-V could be more user-friendly with more detailed logging during live migrations, it would be a significant improvement for users.
For example, let's say a VM fails to start. The error message might mention a "parameter interrupt" failure, but it wouldn't tell you which specific parameter is causing the issue. These are the kinds of minor details that can be improved to make things easier for end users.
With more specific error messages, users could readily identify a configuration issue in a parameter, fix it themselves, and get the VM running. But without clear information, they have to raise a support ticket and wait for support personnel to analyze logs and potentially use source code tracing to identify the problem. This can be a time-consuming process.
By providing more user-friendly error messages, we can avoid these situations and empower users to resolve issues independently. That's one immediate improvement.
For how long have I used the solution?
I'm quite familiar with Hyper-V, having worked with it for over 15 years.
What do I think about the stability of the solution?
Stability-wise, Hyper-V is definitely more stable than many other products. Compared to any other hypervisor on the market, Hyper-V is a very solid product.
In my experience, with good hardware resources and a compatible operating system, I can confidently guarantee a 99.95% SLA (Service Level Agreement) uptime for Hyper-V environments without even needing to check the specific environment beforehand.
What do I think about the scalability of the solution?
The number of users working on Hyper-V depends on how you configure it. In a Hyper-V cluster, you can potentially run up to 1000 VMs on a single server. This translates to supporting more than 1000 users concurrently, accessing and using multiple VMs.
There's no specific user access limit; it depends on your licensing. You can have many customers accessing your VMs based on your licensing agreements.
Which solution did I use previously and why did I switch?
Hyper-V itself isn't really the solution; it's the platform that many solutions run on top of. Even Azure services and Azure Stack HCI rely on Hyper-V. Since Hyper-V provides a stable foundation, my focus isn't on comparing it to other platforms.
Instead, I concentrate on understanding the customer's specific requirements and the service they need. My discussion revolves around that specific service, not Hyper-V itself.
How was the initial setup?
Generally, the setup is straightforward and user-friendly, significantly better compared to other hypervisors. There's always room for improvement, but Hyper-V stands out for its ease of use.
What about the implementation team?
Hyper-V deployment is very user-friendly. It supports partial scripting and offers a UI for a smooth experience. There's also PowerShell scripting available for advanced users.
Additionally, Microsoft itself has published thousands of articles on deployment, making it easy to find the steps. You can choose manual script execution, utilize UI for smaller deployments, or leverage automation - all based on your needs.
I have not faced any challenges in the deployment process.
What's my experience with pricing, setup cost, and licensing?
Licensing cost depends on the edition you choose. There are two main options: Standard and Datacenter.
With a Datacenter license, you can only create two virtual machines that are covered by the license itself. You can create more VMs, but they won't be licensed and could result in charges during an audit.
Feature-wise, both Standard and Datacenter editions offer the same functionalities. The key difference lies in licensing. Standard includes licenses for only two VMs, while Datacenter allows you to run any number of VMs with a single Datacenter license. Datacenter also offers functionalities like Storage Replica and live migration that aren't available in Standard.
The user doesn't have any control over the licensing process itself. You can create VMs regardless of licensing, but in Standard edition, they'll be considered unlicensed and subject to charges during an audit.
Datacenter offers all the features of the Standard edition, plus the ability to run any number of licensed VMs as part of the Datacenter licensing cost. That's why Datacenter is more expensive.
What other advice do I have?
Overall, I would rate the solution a nine out of ten.
I would definitely recommend using this solution. My advice depends on their specific needs. But for many customers, Hyper-V is already included in their Windows server environment. They don't need to purchase anything extra. They can simply start using it.
It's very easy to get started.
Disclosure: My company has a business relationship with this vendor other than being a customer: Partner