Designing your server virtualization infrastructure requires a lot of planning before it's built, as well as plans for if something ever happens. Virtualization helps eliminate hardware issues inside a data center and allows virtual machines to be easily moved. In terms of speed, virtualization can create space in a matter of moments.
It's important to take into consideration the amount of resources you'll need, especially in terms of capacity and power consumption. Just because your environment seems secure doesn't mean it's bulletproof to a disaster. Disasters can come in multiple forms and are nearly impossible to avoid. However, having a disaster recovery plan in place is key in designing a server virtualization infrastructure.
Finally, private cloud always seems to creep into plans. There's a difference between private cloud and regular virtualization, and it's important to distinguish the disparities in order to make a logical decision.
Resource provisioning and capacity planning
Provisioning resources and planning capacity seems like it is a simple task, but it's certainly one that can't be overlooked. Virtual machines that end up without the necessary resources will suffer performance issues. On the other hand, overprovisioning resources to a VM could be a waste. It's important to have a proper capacity plan in place to ensure your resources will be ready to handle any and all workloads and keep your environment running smoothly.
When it comes to designing a virtual server farm, there is no "one size fits all." Although that's the case, it doesn't mean that there aren't any simple guidelines to follow to create a reliable environment. Understanding your applications and knowing the quantity of hosts you're looking for are two small ways of building a scalable server virtualization infrastructure. Continue Reading
Although swap files can enable features such as memory overcommit, companies are finding out that large swap files are wasting expensive storage space. Solid-state drives are mostly measured in gigabytes instead of terabytes, which makes it critical to use that space efficiently. Continue Reading
2Designing for failure-
How to prepare and respond to failure
Unfortunately, failure is inevitable. But just because it's going to happen doesn't mean you can't be prepared for it and ready to recover. Whether it be an actual natural disaster or something smaller like a power outage, it's important for enterprises to be ready. Not everyone uses the same approach to disaster recovery, so it's important to establish a plan that fits your environment and company.
N+1 redundancy says each component should have an independent backup, but that approach to data center resiliency may not be the best choice for maintaining availability and reducing hardware waste. More organizations are starting to consider the more complex N+X+Y formula. Continue Reading
Virtualization boasts the ability to host many VMs on one server, but that also means any disruption to the server hardware can affect many workloads rather than just one. Choosing which VMware high availability approach to take to maximize protection without over-spending is a key decision organizations need to make. Continue Reading
One of the most basic recovery methods is doing simple backups frequently before a disaster strikes. But sometimes those backups aren't enough. Software-based VM replication is a popular method now, but your choice should depend on your situation. Continue Reading
With everything else going on, it can be easy to overlook something as simple as power. If the power goes out, you need to have a plan in place, like a generator. A step to take to prevent such an issue is to reduce power consumption to improve the odds that your most critical VMs will remain online. Continue Reading
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3Taking it further-
Designing a private cloud is a logical next step
Sometimes virtualization isn't enough and enterprises elect to explore private clouds. One big advantage of private cloud is automation. Automated provisioning tools allow enterprises to choose the number and types of resources needed and then create those virtual resources to make them available for use. However, a private cloud may not bring financial advantages and isn't the right choice for every organization.
Building a private cloud is not an easy process, and it doesn't get any easier because of issues between IT and business management. Getting IT to work in harmony with the business side of things is a key step in making a private cloud possible. Continue Reading
When you are looking for a cloud provider, budget is obviously something enterprises have to consider. Open source cloud offerings can be a fit for those who have a tight budget. Eucalyptus is a low-cost, open source and inexpensive private cloud option to consider. Continue Reading
While public cloud has its advantages and disadvantages, there's a way to get benefits without the drawbacks of a private cloud. Windows Azure Pack allows you to experience the features of Windows Azure in your own data center at no additional cost. Continue Reading
Deciding when a virtual environment is a private cloud is completely up to you. Once you have the necessary ingredients, like VM templates, resource pools and a user interface for self-service, then your environment is ready to become a private cloud. Continue Reading