Virt v2v

CR for each source virtual machine (VM), connected to the PVCs. If the VM ran on the source environment, the Migration Controller powers on the VM, the KubeVirt Controller service creates a virt-launcher pod and a VirtualMachineInstance CR. The virt-launcher pod runs QEMU-KVM with the PVCs attached as VM disks. Cold migration from VMWare to the local OpenShift cluster: When you create a Migration custom resource (CR) to run a migration plan, the Migration Controller service creates a DataVolume CR for each source VM disk. For each VM disk: The Containerized Data Importer (CDI) Controller service creates a blank persistent volume claim (PVC) based on the parameters specified in the DataVolume CR. If the StorageClass has a dynamic provisioner, the persistent volume (PV) is dynamically provisioned by the StorageClass provisioner. For all VM disks: The Migration Controller service creates a dummy pod to bind all PVCs. The name of the pod contains pvcinit. The Migration Controller service creates a conversion pod for all PVCs. The conversion pod runs virt-v2v, which converts the VM to the KVM hypervisor and transfers the disks' data to their corresponding PVs. After the VM disks are transferred: The Migration Controller service creates a VirtualMachine CR for each source virtual machine (VM), connected to the PVCs. If the VM ran on the source environment, the Migration Controller powers on the VM, the KubeVirt Controller service creates a virt-launcher pod and a VirtualMachineInstance CR. The virt-launcher pod runs QEMU-KVM with the PVCs attached as VM disks. 9.4.

VM disks are transferred: The Migration Controller service creates a conversion pod with the PVCs attached to it when importing from VMWare. The conversion pod runs virt-v2v, which installs and configures device drivers on the PVCs of the target VM. The Migration Controller service creates a VirtualMachine CR for each source virtual machine (VM), connected to the PVCs. If the VM ran on the source environment, the Migration Controller powers on the VM, the KubeVirt Controller service creates a virt-launcher pod and a VirtualMachineInstance CR. The virt-launcher pod runs QEMU-KVM with the PVCs attached as VM disks. Cold migration from RHV or OpenStack to the local OpenShift cluster: When you create a Migration custom resource (CR) to run a migration plan, the Migration Controller service creates for each source VM disk a PersistentVolumeClaim CR, and an OvirtVolumePopulator when the source is RHV, or an OpenstackVolumePopulator CR when the source is OpenStack. For each VM disk: The Populator Controller service creates a temporarily persistent volume claim (PVC). If the StorageClass has a dynamic provisioner, the persistent volume (PV) is dynamically provisioned by the StorageClass provisioner. The Migration Controller service creates a dummy pod to bind all PVCs. The name of the pod contains pvcinit. The Populator Controller service creates a populator pod. The populator pod transfers the disk data to the PV. After the VM disks are transferred: The temporary PVC is deleted, and the initial PVC points to the PV with the data. The Migration Controller service creates a VirtualMachine

Logs and custom resources You can download logs and custom resource (CR) information for troubleshooting. For more information, see the detailed migration workflow. 9.4.1. Collected logs and custom resource information You can download logs and custom resource (CR) yaml files for the following targets by using the Red Hat OpenShift web console or the command line interface (CLI): Migration plan: Web console or CLI. Virtual machine: Web console or CLI. Namespace: CLI only. The must-gather tool collects the following logs and CR files in an archive file: CRs: DataVolume CR: Represents a disk mounted on a migrated VM. VirtualMachine CR: Represents a migrated VM. Plan CR: Defines the VMs and storage and network mapping. Job CR: Optional: Represents a pre-migration hook, a post-migration hook, or both. Logs: importer pod: Disk-to-data-volume conversion log. The importer pod naming convention is importer--, for example, importer-mig-plan-ed90dfc6-9a17-4a8btnfh, where ed90dfc6-9a17-4a8 is a truncated RHV VM ID and btnfh is the generated 5-character ID. conversion pod: VM conversion log. The conversion pod runs virt-v2v, which installs and configures device drivers on the PVCs of the VM. The conversion pod naming convention is -. virt-launcher pod: VM launcher log. When a migrated VM is powered on, the virt-launcher pod runs QEMU-KVM with the PVCs attached as VM disks. forklift-controller pod: The log is filtered for the migration plan, virtual machine, or namespace specified by the must-gather command. forklift-must-gather-api pod: The log is filtered for the migration plan, virtual machine, or namespace specified by the must-gather command. hook-job pod:

Supported with Red Hat production service level agreements (SLAs) and might not be functionally complete. Red Hat does not recommend using them in production. These features provide early access to upcoming product features, enabling customers to test functionality and provide feedback during the development process. For more information about the support scope of Red Hat Technology Preview features, see Migration using OpenStack source providers only supports VMs that use only Cinder volumes. 2.7. VMware prerequisites The following prerequisites apply to VMware migrations: You must use a compatible version of VMware vSphere. You must be logged in as a user with at least the minimal set of VMware privileges. You must install VMware Tools on all source virtual machines (VMs). The VM operating system must be certified and supported for use as a guest operating system with OpenShift Virtualization and for conversion to KVM with virt-v2v. If you are running a warm migration, you must enable changed block tracking (CBT) on the VMs and on the VM disks. You must create a VMware Virtual Disk Development Kit (VDDK) image. You must obtain the SHA-1 fingerprint of the vCenter host. If you are migrating more than 10 VMs from an ESXi host in the same migration plan, you must increase the NFC service memory of the host. It is strongly recommended to disable hibernation because Migration Toolkit for Virtualization (MTV) does not support migrating hibernated VMs. In the event of a power outage, data might be lost for a VM with disabled

With multiple architectures increases flexibility. Furthermore, QEMU’s ability to run without kernel privileges makes it a simpler choice for users who require less administrative control. As a kernel-based virtualization solution, KVM is tightly integrated with the Linux kernel. For users who are not familiar with Linux systems, this tight integration may lead to a steeper learning curve. However, KVM’s management tools (such as virt-manager) offer user-friendly interfaces for managing virtual machines and their configurations. For users familiar with Linux or those seeking robust virtualization management, KVM is a powerful and efficient choice.Always Back up Your Virtual MachinesAlso, don't forget that data protection is always important. No matter what you choose in the end, you can always use Vinchin Backup & Recovery to easily protect your business-critical data saved in VMs. It’s fully compatible with most mainstream KVM-based virtual platforms including Proxmox, oVirt, Red Hat Virtualization, Oracle Linux Virtualization Manager, and Huawei FusionCompute (KVM).(Native KVM is not supported for now)Besides incremental, CBT/CBT alternative driven VM backup, the software also supports file-level granular restore, instant restore, V2V (cross-platform recovery), and a bunch of other effective and advanced features.It only takes 4 steps for you to backup VMs, here will show you how to backup Proxmox VM with Vinchin Backup & Recovery:1. Select the backup object.2. Select backup destination.3. Configure backup strategies.4. Review and submit the job.Vinchin Backup & Recovery has been selected by thousands of companies and you can also start to use this powerful system with a 60-day full-featured trial! Also, contact us and leave your needs, and then you will receive a solution according to your IT environment.KVM and QEMU FAQs1. Can QEMU be used without KVM?Yes, QEMU can be used without KVM, but without hardware acceleration, performance will be significantly slower. When used without KVM, QEMU emulates the entire