This article showcases the migration of a VMWare OVA to a KVM virtual machine. The QCOW2 format decouples the physical storage layer from the virtual layer by adding a mapping between logical and physical blocks. QCOW2 is a storage format for virtual disks. vmdk) so that it can be easily streamed over a network link. OVA requires stream optimized disk image file (. vmdk, and a manifest file with extension. ovf, a virtual machine disk image file with extension. An OVA is a tar archive file with Open Virtualization Format (OVF) files inside, which is composed of an OVF descriptor with extension. A file with a VMDK file extension is essentially a complete and independent virtual machine. VMware Virtual Machine Disk File ( VMDK) is a format specification for virtual machine (VM) files. With the integrated web-based user interface you can manage VMs and containers, high availability for clusters, or the integrated disaster recovery tools with ease. It tightly integrates the KVM hypervisor and Linux Containers (LXC), software-defined storage and networking functionality, on a single platform. Proxmox VE Proxmox VE is a complete, open-source server management platform for enterprise virtualization. Every VM is implemented as a regular Linux process, scheduled by the standard Linux scheduler, with dedicated virtual hardware like a network card, graphics adapter, CPU(s), memory, and disks. KVM comprises of all these components as it is a part of the Linux kernel. All hypervisors need some operating system-level components-such as a memory manager, process scheduler, input/output (I/O) stack, device drivers, security manager, a network stack, and more -to run VMs. KVM converts Linux into a type-1 (bare-metal) hypervisor. Specifically, KVM allows you turn Linux into a hypervisor that allows a host machine to run multiple, isolated virtual environments called “guests” or “virtual machines” (VMs). Kernel-based Virtual Machine ( KVM) is an open-source virtualization technology built into Linux®.
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