Linux-KVM: Migrating Hyper-V VHD Images to KVM

Wed, 23 Mar 2011 00:00:00 +0000

I have always been a big fan of Hyper-V, and was actually a Virtualization MVP 2 years in a row. However recently I haven’t been able to get past the really poor support for Linux on the Hyper-V platform. We run a large number of hypervisors in our international sales offices (15+) and have a need to run both Linux and Windows on them. This has necessitated our switch to Linux-KVM as their Windows support is far better than Hyper-V’s Linux support. As such with an upcoming trip planned to our European offices I have been planning exactly how our migration will look, of course the first iteration of this plan consisted of me deploying replacement VMs on the KVM stack then migrating to the VMs individually. Though this plan was lengthy and cumbersome it would work.

Linux-KVM: Managing Disk Images

Wed, 16 Mar 2011 00:00:00 +0000

Disk images have long been the traditional form of storage for virtualized environments, they are essentially containers in the form of a file on the host’s file system. These files can be either fully allocated or sparsely allocated at time of disk creation, a fully allocated 20GB disk image will take up 20GB of storage on the host file system, a sparsely allocated 20GB disk image will only take up as much storage on the host file system as has actually been written inside of the disk, so if you have a newly created sparse file the file will be just a few KB in size.

Kvm-Img on the bin

Linux-KVM: Migrating Hyper-V VHD Images to KVM

Linux-KVM: Managing Disk Images