Converting VMware disk images to use in KVM

From time to time, you may have a need to convert a VMware based virtual disk image into some other format.

If you use KVM as your virtualization technology or perhaps you are migrating from VMware to KVM, you will need to convert your VMware disk images (.vmdk files) into a supported image type that you can use in KVM.


Individual Image files

If you have a single vmdk file, you can convert it with the below command.

qemu-img convert -f vmdk disk-image.vmdk -O raw disk-image.img

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Deploying VMware vSphere 5.0

Just over a week ago I sat the VMware Install, Manage and Configure training course as a prerequisite to gaining my VCP accreditation. I have been using VMware products for around 10 years now, so I find a lot of things in the area of virtualization to be common knowledge. I have decided to write this article on vSphere for those of you who are new to the product.

A few weeks ago I wrote a similar article on Red Hat Enterprise Virtualization, which is the current competitor to VMware which uses the underlying KVM virtualization technology.

VMware has been the market leader in virtualization for more years than I can remember. Virtualization is their primary business function and they have their fingers in many pies within the technology industry. As a result they have a huge market share, huge list of vendors supporting their products and an even larger number of customers.

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Deploying Red Hat Enterprise Virtualization

Virtualization, to many people, is a very hot topic when it comes to many people working in Technology. Many people see it as some new fancy thing that has been around for a few years, but it has been around for a LONG time. It is truely astounding how many people still have no idea what virtualization is, let alone having any plans to deploy it in their infrastructure.

VMware have ruled the market in this area for over the past 10-15 years, however they have a serious competitor. Whilst VMware stay put over in the blue corner, not really offering much more than in recent years other than charging their customers through the nose for their solution, over in the red corner, is Red Hat offering a solution that not only significantly outperforms VMware’s products with obscene statistics, but the TCO is also obscenely cheaper than what VMware can offer.

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