migration

  1. W

    Migration error

    Zwei Hosts, SAN mit LVM THICK und Snapshot Funktionalität angebunden. Bei der Mirgation bekomme ich folgenden Fehler. 2025-11-17 08:30:56 starting migration of VM 100 to node 'pve3' (141.20.156.143) 2025-11-17 08:30:56 starting VM 100 on remote node 'pve3' 2025-11-17 08:30:57 [pve3] can't...
  2. L

    [TUTORIAL] Netzwerksettings bei der Migration von Windows VM's zu PVE übernehmen

    Hallo in die Runde, leider gibt es das Problem, dass Windows Systeme bei der Migration zu Proxmox Ihre Netzwerksettings verlieren. Proxmox kann hier nichts für, da es sich um eine Eigenart von Windows handelt. Wer den Gamechanger von Falk kennt, kann Windows VM's bereits sehr schnell und ohne...
  3. F

    The source VM is locked when it was migrated to another PVE node

    Backgroud: I migrated a VM from one PVE node (pve1) to another node (pve2). After migrated sucess, the original VM (VM on pve1) show "locked" status [Config locked(migrate)]. Question: What's the reason it is locked? Cloud I use qm VMID unlock to unlock the VM? Any potential issue? (So that I...
  4. A

    Proxmox 9 in a 3 node cluster with CEPH VM migration use VMBR0 network? how to get faster VM migration speed?

    Hi all, is it correct that by default Proxmox 9 in a 3 node cluster configuration with CEPH for VM migration use VMBR0 network? Current node network config does use a separate network for CEPH Cluster (10.10.10.x/24), CEPH Public (10.10.20.x/24), COROSYNC (172.16.1.x/24) and VMBR0...
  5. P

    VMs mass migration, from Libvirt to Proxmox

    My organisation is about to migrate circa 100 VMs, from a bunch of libvirt machines to a brand new PVE cluster. We found a few pointers about the migration process, but it requires a lot of manual intervention. Is there a way of automatize the process as much as possible ?
  6. J

    [SOLVED] Physical Windows server 2022 to VM on Proxmox 9

    I am trying to migrate a physical windows test server to Proxmox. These are the steps so far: 1. used Disk2vhd and created a vhd file on a USB Drive. 2. Connected the USB to a Ubuntu machine and ran qemu-img convert -p -f vpc -O qcow2 WIN-4GSGQMJ1U8A.VHD WIN-4GSGQMJ1U8A.qcow2 So, I now...
  7. P

    Migration to new hardware

    Hello, I plan to upgrade my hardware with new cpu, motherboard and ssd. Actually I have an old i7 6700k and I struggle with. My upgrade will be a ryzen 9 7900 and enterprise class SSD (Kingston DC600). My current SSD have a partition for OS and for VM. My plan is to move VM to an other drive...
  8. D

    Live Migration - Fails on a large disk

    Hi all, I am on Proxmox 9.0.10, with 2 servers in my cluster. I have a relatively large VM disk, which fails on live migration every time. The initiating HV is LVM and the destination is ZFS. I have attached the full migration log, but the error is mainly channel 4: open failed: connect...
  9. J

    High-Speed, Low-Downtime ESXi to Proxmox Migration via NFS

    [GUIDE] High-Speed, Low-Downtime ESXi to Proxmox Migration via NFS Hello everyone, I wanted to share a migration method I've been using to move VMs from ESXi to Proxmox. This process avoids the common performance bottlenecks of the built-in importer and the storage/downtime requirements of...
  10. H

    Cannot migrate VM back from LVM storage

    Hi. I've recently added an LVM thick storage to my PVE cluster which is a LUN shared between 4 of 5 nodes and everything works just fine except VM migration. I migrated VM from the 5th node which only has local storage to different node and shared LVM storage. Now I can't migrate it back. When...
  11. C

    Migration of VM on NFS fails between 2 servers

    Hi ! I have a 3 node cluster on Proxmox and one of the Hosts has some issues I couldn't identify till now. To have my VM save I wanted to put it onto a dedicated (external) NFS where the VM is hosted so that I can easily move the VM between by cluster. If I do the migration between the 2 "good"...
  12. M

    Migration type definition per VM

    Is it possible to define a migration type per VM so that it's always applied to that VM? I have some VM's that I always need to be offline migrated for a few reasons (one is for example a connected PCI device, which is available on all nodes). For this VM's I would like to specify that, if they...
  13. H

    [SOLVED] Unable to migrate containers

    Hello all! This is the first time I've used the migrate feature. I have two nodes in a cluster, and I was looking to move all containers from Node 1 to Node 2. I used the bulk migration option, and it migrated more than half of the containers that I have. However, for some reason, there are a...
  14. S

    Migration failure from esxi Datastore to New Proxmox Cluster

    Hello, I am having an issue with the live migration option in Proxmox. I am getting ready to migrate off of ESXi 8 and move over to Proxmox. We are currently in the testing phase and have a few test VMs in the ESXi environment and a lab PVE cluster setup to emulate what we want our production...
  15. M

    Problem Booting Migrated SCO OpenServer 6 VM: “vfs_mountroot: cannot mount root”

    Hi everyone, we’re currently facing an issue after migrating a legacy SCO OpenServer 6 virtual machine from VMware to Proxmox. Here's what we’ve done so far: Successfully converted the original .vmdk file to .qcow2 using qemu-img. Created a new VM in Proxmox and attached the converted .qcow2...
  16. P

    Redundancy best practices for multi-site failover

    We are in the process of migrating from VMware to ProxMox. We have a Primary site and a Secondary site in case the 1st one fail. To ensure proper design, we are questioning how we should setup the storage of the SANs (iSCSI) for proper failover redundancy. We did a lot of reading, but no...
  17. M

    HA and Database Corruption

    Hi Forum, I am new to HA and have a running setup for two months now. From the experiences that I have gathered it looks like live-migration using a HA group fails on almost all VMs and CTs with a database (sadly almost everything I have). These were the result of changing the HA group...
  18. T

    [SOLVED] How to migrate container including root disk to new node (non cluster)

    Hi, I have a ProxMox node running 7.4-20 on bare metal which has a container whose Root Disk image is on a local Directory type volume. I recently bought a new server and installed ProxMox 8.4.1 on that (also on bare metal) and would like to migrate my container to that including putting the...
  19. C

    [SOLVED] Mass migrate VM disks?

    Good Morning/Evening, I didn't think I'd ever have to but I have several VMs running on one physical disk that I want to move to another datastore on another disk. I can move the storage one at a time through the web ui but I was wondering if anyone knows of a faster method? This will be...
  20. K

    Slow disk migration from iSCSI (FlashME5) to CephStorage

    Hi, I’m experiencing very slow disk migration in my Proxmox cluster when moving a VM disk from FlashME5 (iSCSI multipath + LVM) to CephStorage (RBD). Migration from Ceph → FlashME5 is fast (~500–700 MB/s), but in reverse (FlashME5 → Ceph) I only get ~200 MB/s or less. Environment: Proxmox 8.x...