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high density virtualization


high density virtualization

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…)

Improving webhosting QoS (Quality of Service) using resource control in server virtualization

Improving webhosting QoS (Quality of Service) using resource control in server virtualization

“Noisy neighbors” are customers who use up more than their fair share of resources in a virtualized server. Such over-use of resources (aka resource hogging) affects server performance, especially if a VPS provider runs high-density servers. Though server virtualization provides cost-effective hosting, it involves sharing of resources such as CPU, RAM, I/O, network, etc. among the VPS accounts. (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…)

How we setup a high density server virtualization system

How we setup a high density server virtualization system

As a server management company, we are often consulted by online service providers for a variety of business decisions – which technology to use, what hardware to deploy, how to keep the system profitable, etc. Profitability of a hosting company or an IaaS provider directly depends on the number of customers that can be supported on a given infrastructure. For instance, if a technology enables putting 40 customers on a server, that can otherwise hold only 30, it can deliver better ROI (Return on Investment).

Virtualization is the de-facto method by which hosting providers and IaaS companies deliver multi-tenant hosting. Of these technologies, some offer greater server density than others. For example, container virtualization technologies such as OpenVZ can achieve a higher server density than true virtualization hypervisors like Xen or KVM. It’s then not a surprise that hosting businesses that cater to retail market often choose container virtualization systems. (more…)