“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…)
“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…)
Surveys indicate that 70% of online businesses adopt server virtualization solutions to reduce their costs . 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…)
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…)