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VPS live migration


VPS live migration

Benefits of virtualization for small and mid-sized businesses

Benefits of virtualization for small and mid-sized businesses

“If it ain’t broke don’t fix it.”

It’s a common sense advice, and many IT managers use this to explain why their infrastructure isn’t virtualized yet. Server virtualization technologies have been around for more than a decade now, but some businesses prefer the proven reliability of good ol’ dedicated servers. (more…)

Identifying resource usage and performing migration to address performance issues in a Xen server virtualization environment

Identifying resource usage and performing migration to address performance issues in a Xen server virtualization environment

When Netflix faced an outage in 2011, they had to offer a 3% credit to their customers. The outage was due to a resource crunch in the Amazon cloud they were hosted in. It’s tough for a business to survive if such outages happen frequently.

A cloud hosting provider achieves economies of scale by sharing resources between multiple tenants in the cloud. These resources include computing, storage and network devices. But at times, the cloud provider may oversell the resources to achieve high-density or a single tenant can abuse the server resources. This can affect the performance of the cloud system. (more…)

Design considerations for setting up a KVM server virtualization solution

Design considerations for setting up a KVM server virtualization solution

Surveys indicate that 70% of online businesses adopt server virtualization solutions to reduce their costs [1]. But many times, the virtualization software costs outweigh this cost-benefit. That is where open source server virtualization technologies make a difference.

Choosing the right virtualization technology includes review of factors such as cost, features, security and performance. Recently we were contacted by a hosting provider who wanted to sell cheap VPS plans to SMBs. In this post we’ll discuss our design considerations to implement a server virtualization solution that was affordable, feature-rich, easily scalable and secure. (more…)

Best open source virtualization management software

Best open source virtualization management software

Virtualization refers to hosting a number of virtual server instances over a single physical machine. Dividing resources such as CPU, RAM, storage and I/O among multiple instances, helps in maximum hardware utilization. Statistics show that every business organization has virtualized over 70% of their servers.

To manage a virtualized environment, businesses need a management solution that enables optimal distribution of server resources among various virtual instances. A virtualization management solution helps to do this without much time or overhead. (more…)