Migrating VMs with OneSwap

Mon, 17 Feb 2025 00:00:00 +0000

OpenNebula provides OneSwap, a command-line tool designed to simplify migrating Virtual Machines from vCenter to OpenNebula. OneSwap has been used in the field with a 96% success rate in converting VMs automatically, greatly simplifying and speeding up the migration process.

OneSwap supports importing Open Virtual Appliances (OVAs) previously exported from vCenter/ESXi environments. The Managing OVAs and VMDKs guide provides instructions, with complete examples.

OneSwap is part of a set of tools and services designed to guide you in achieving a smooth transition from VMware. These include the VMware Migration Service, a complete guidance and support framework to help organizations define and execute their migration plan with minimal disruption to business operations. Further information is available in Migrating from VMware to OpenNebula.

Architecture and Requirements

OneSwap can be run directly on the OpenNebula frontend or on a dedicated server. Running it on a separate server is recommended for production environments as it isolates the migration workload and avoids impacting the OpenNebula frontend during large or concurrent migrations.

Managing OVAs and VMDKs

Mon, 01 Jan 0001 00:00:00 +0000

Overview

OpenNebula supports importing OVAs that have been exported from vCenter / ESXi environments, generating the necessary VM Template and Images.

It is possible to import .ova files or a folder containing the OVF files (VMDK disk files and manifest file in .ovf format). The import tool will inject context packages in the target Images, automatically detecting the guest operating system.

The same command allows users to import single VMDK disks as OpenNebula Images, converting the VMDK to qcow2 format and then creating the associated Image. It is possible to inject context, install virtio drivers and uninstall VMware Tools.

Migration from VMware on

Migrating VMs with OneSwap

Architecture and Requirements

Managing OVAs and VMDKs

Overview