VM Migration from VMware to CloudStack and KVM – Suresh Anaparti, ShapeBlue
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This document discusses the process of migrating virtual machines from VMware to CloudStack using KVM, detailing the migration steps, requirements, and tools involved. It covers pre-migration preparations, the conversion and copying of VMs, and post-migration cleanup, along with API usage for managing the process. The presentation also outlines future work, potential optimizations, and provides references for further reading.
![Conclusion & Future Work
• Preserve Disks & Networking
• Requires virt-v2v / other dependencies on KVM hosts
*Results may vary depending on the Guest VM OS and KVM hosts distributions and virt-v2v versions
• Minimize migration time
• Use local copy (cp / url / virt-v2v-copy-to-local)
• Other options?
• Auto Detect Host (with conversion dependencies)
• virt-v2v / other dependencies updates / any other issues
• Data volume import (KVM)
• Any recommendations/thoughts?
[GitHub Issues | GitHub Discussions | Dev, Users Mailing List]
#CSIUG2024](https://image.slidesharecdn.com/vmmigrationfromvmwaretocloudstackandkvm-240228065042-b6c34f2b/85/VM-Migration-from-VMware-to-CloudStack-and-KVM-Suresh-Anaparti-ShapeBlue-16-320.jpg)
VM Migration from VMware to CloudStack and KVM – Suresh Anaparti, ShapeBlue
- 1. VM Migration from VMware to CloudStack and KVM - Suresh Kumar Anaparti #CSIUG2024
- 2. About Me! @sureshanaparti •CloudStack Contributor since 2015 •Committer at Apache CloudStack •CloudStack 4.16.1 RM, 4.19.1 RM (Upcoming) •Software Architect @ ShapeBlue • Hyderabad, India #CSIUG2024
- 3. Agenda •Introduction •VMware Migration •KVM Ingestion •Future Work •Demo •References •Q & A #CSIUG2024
- 4. Introduction Import/Export Instances (VMware) - Pre-4.19.0 #CSIUG2024
- 5. Introduction Import Instances to CloudStack (KVM) - 4.19.0 • VMware • External vCenter • Managed vCenter • KVM • External KVM host • Disk Images from Storages #CSIUG2024
- 6. VMware Migration • KVM Host Requirements • Migration Process *Results may vary depending on the Guest VM OS and KVM hosts distributions and virt-v2v versions • Pre-Migration: Discovery, Preparation • Migration: Conversion, Copying, Deployment • Post-Migration: Cleanup • Result: Imported Stopped VM • APIs • listVmwareDcVms • importVm #CSIUG2024
- 7. KVM Host Requirements The following packages needs to be installed in KVM hypervisor hosts • virt-v2v (https://www.libguestfs.org/virt-v2v.1.html) • nbdkit – on Ubuntu • apt install nbdkit • virtio-win – for Windows guest VMs • yum install virtio-win (RHEL) • apt install virtio-win (Debian) #CSIUG2024
- 8. Migration Process #CSIUG2024 CloudStack Management Server (MS) Connectivity between VMware vCenter and KVM host(s) is required Temporary Storage Location virt-v2v output to temporary storage location: - Secondary storage - Primary storage - Local storage (if enabled) Destination Storage Pools Copy VM migrated disks to destination storage pools Converted Instance Information Request to convert VMware Cloned Instance CloudStack Database Import Instance into Database importVM API Source VMware Clone the source VMware VM Connectivity between VMware vCenter and MS is required
- 9. Migration cmd (virt-v2v) on KVM Host • virt-v2v --root first -ic <URL> <CLONE_VM_NAME> --password-file <PASSWORD_FILE> -o local -os <STORAGE_MOUNT_POINT> -of qcow2 -on <OUTPUT_FILES_PREFIX> Example: virt-v2v --root first -ic vpx://administrator%[email protected]/Trillian/p1-c1/10.0.34.189?no_verify=1 0f2b4c88-0015-4f98-8499-8301fa2a5eb3 --password-file /tmp/vmw-bdd276b1-37bd-4575-8d2a-8f22619c3155 -o local -os /mnt/84f43d95-144f-3ecf-8d46-e6a1badec9bd -of qcow2 -on ba6be8da-86fb-42f5-ab98-143d1139f7ce #CSIUG2024
- 12. Migration Tool (i) Select Source VMware DC • Existing: Already linked to a CloudStack zone in the cloud environment • External: Not managed by any CloudStack zone in the cloud (ii) CloudStack lists VMs on VMware DC • New API listVmwareDcVms (iii) Administrator selects a VMware Instance to import • New API importVM • Additionally, can also select a KVM host to perform the conversion and/or select the temporary storage for the conversion (iv) CloudStack clones the source VM on the source VMware DC • Clones in “crash consistent” state (v) KVM Host converts the VMware Instance to KVM through virt-v2v • Administrator can choose the conversion host and/or the temporary location for the virt-v2v output (vi) KVM Host invokes virt-v2v to convert a guest VM from VMware to run on libvirt #CSIUG2024
- 13. Configuration Management Server Settings • convert.vmware.instance.to.kvm.timeout • Timeout for the long-lasting conversion process • Default: 8 hours #CSIUG2024 KVM Host Agent Parameters • virtv2v.verbose.enabled • Increase virt-v2v verbosity • Default: false
- 14. Supported VMs & Versions #CSIUG2024 Destination KVM Hosts Linux Distribution Supported Versions Alma Linux 8, 9 Red Hat Enterprise Linux 8, 9 Rocky Linux 8, 9 Ubuntu 22.04 LTS Supported Versions Supported VMware guest VMs • Running or Stopped Linux VMs • Stopped Windows VMs
- 15. KVM Ingestion • Requirements • Running libvirt, Allow libvirt TCP connections (listen_tcp=1) • Import Process • Pre-Import: Discovery • Import: Conversion (to QCOW2 - qemu-img), Copying (scp), Deployment • Post-Import: Cleanup • APIs • listVmsForImport • importUnmanagedInstance • importVm #CSIUG2024
- 16. Conclusion & Future Work • Preserve Disks & Networking • Requires virt-v2v / other dependencies on KVM hosts *Results may vary depending on the Guest VM OS and KVM hosts distributions and virt-v2v versions • Minimize migration time • Use local copy (cp / url / virt-v2v-copy-to-local) • Other options? • Auto Detect Host (with conversion dependencies) • virt-v2v / other dependencies updates / any other issues • Data volume import (KVM) • Any recommendations/thoughts? [GitHub Issues | GitHub Discussions | Dev, Users Mailing List] #CSIUG2024
- 17. DEMO #CSIUG2024
- 18. References • CloudStack Documentation • https://docs.cloudstack.apache.org/en/4.19.0.0/adminguide/virtual_machines.html#importing-virtual-machines-from-vmware-into-kvm • https://docs.cloudstack.apache.org/en/4.19.0.0/adminguide/virtual_machines/importing_unmanaging_vms.html • https://cloudstack.apache.org/api/apidocs-4.19/ • CloudStack Feature PRs (4.19.0) • https://github.com/apache/cloudstack/pull/7881 (Import VMware VMs into KVM) • https://github.com/apache/cloudstack/pull/7976 (KVM Ingestion - Import Instance) • virt-v2v • https://www.ovirt.org/develop/release-management/features/virt/virt-v2v-integration.html • https://www.libguestfs.org/virt-v2v.1.html • https://access.redhat.com/articles/1351473 (VM conversion in RHEL) #CSIUG2024
- 19. #CSIUG2024 Q & A