oVirt is a project started by Red Hat Inc. to develop and promote oVirt, an open source datacenter virtualization platform.
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oVirt,which offers large-scale, centralized management for server and desktop virtualization, was designed as an open-source alternative to VMware vCenter/vSphere. OVirt version 3.1 was released in August 2012 and features live snapshots, network adapter hot plugging, and support for accessing externally-hosted logical unit numbers (LUNs) from virtual machines (VMs).
oVirt is built upon Red Hat Enterprise Virtualization management (RHEV-M) code, the kernel-based virtual machine (KVM) hypervisor, the oVirt node for running VMs and virtualization tools such as libvirt and v2v. It can use locally attached storage, Network File System (NFS), iSCSI or Fibre Channel interfaces to communicate with host servers.