live migration

If you encounter the below error while trying to migrate a VM from with CLI or with GUI. Do check if you have an unreferenced USB device added to the VM. This is something I encountered and solved while fiddling around. So letting you all know. BR, MB

Hello, Is there a cross-cluster live migration feature available? We operate multiple 3-node clusters and maintain one "empty 3-node cluster" that serves as our update/spare cluster. This allows us to rotate VMs from one cluster to another during major updates or release changes. We use Ceph...

Hello, We have a need to migrate machines between nodes, but we need to do it quickly. Is there a possibility of optimization? Are there any magic parameters? It seems that in our case the processor is the bottleneck.,When starting the migration it used full CPU, which causes us not to be...

Hi everyone, I'm planning to expand my Proxmox cluster, which currently consists of a single node with an AMD Threadripper Pro 7975WX processor, by adding another host. While I only need one host for my workload, I require the additional host for live migration purposes. In my infrastructure, I...

Hi guys, I've recently incorporated a second host into my environment and have been testing the live migration process. Surprisingly, it doesn't seem to work as expected. About 75% of the time, I've had to forcefully reboot the VM after migration due to crashes. I noticed a few posts about...

Hi all, I have previous experience with Hyper-V, and I'm now trying out Proxmox. I attempted a live migration from one server to another and noticed that the disk is fully copied. In Hyper-V, only the used blocks in the virtual disk are copied, whereas in Proxmox, if the virtual disk is 128GB...

I'm having problems to run live migration to one of my servers. It has no error message but just sitting at 0.0b. The log is below. task started by HA resource agent 2024-02-13 10:28:29 starting migration of VM 1007 to node 'pve1' (10.0.24.8) 2024-02-13 10:28:29 starting VM 1007 on remote...

Hi, We have a 3-node cluster that has relatively large nodes (2 x 64-core EPYC 7763's with 1TiB of RAM), and we are stress testing Proxmox in large-node configurations that have a large number of VMs. In our test scenario, we have around 440 test VMs on the first node, with the other two...

Hello everybody, while there are already several threads regarding Intel & Amd in a mixed cluster I am not sure about the current state. Most threads I've read drift away in one or another direction. So please forgive me if you feel this has already been discussed enough... My cluster is...

Hi Everyone, One of my major clients is considering PVE but I've run into the same snag as earlier this year. The organization has several HPE Nimble SANs and they aren't going away as far as I can tell. HPE Nimble is block storage only, so iSCSI is basically the one and only solution...

Hi, I have been doing live migration (local storage to local storage) from 6.3 node to 7.2 node, there have not been any issues with 5 of the VMs, but with the last one, I had issues, and the output of the error is: 2022-07-05 23:47:53 migration status: active (transferred 29642295186...

Hi, I am new to pve and pbs, so maybe I have not fully taken advantage of all the features available. I have 2 systems configured as a cluster. One server uses a thin provisioned LVM for VM disks and everything works fine. PBS can work with snapshot mode. The other server uses a directory for...

https://discuss.linuxcontainers.org/t/lxd-4-20-has-been-released/12540 LXD now has live migration. Perhaps recently the CRIUgenic technology has advanced a bit and Proxmox can start looking into this as well?

Originally posted as a reply here: https://forum.proxmox.com/threads/migration-fails-pve-6-2-12-query-migrate-failed.78954/post-429694 "We're seeing this as well, though without the overflow during RAM transmission. More info further into this reply." This problem was discovered following a...

Hi, We usually make KVM VMs. But for history reasons we still have some old containers. Openvz containers which were migrated to lxc since PVE4. Now with pve7 some LXCs refuse to start properly (mainly due to old systemd < 232). Also, LXC live migration is impossible. So I'm wondering if...

When doing a live VM migration (latest proxmox enterprise 7) from one server to another where both servers use local disks with lvm-thin (ext4 hardware SSD RAID-10), if the VM hard disk has "Discard" enabled, we find that the migration hammers the I/O of the target node until the first copy...

After a small network upgrade, I try to tune the performance for the live migration. With the secure migration mode I currently get 300-400 MiB/s. In the insecure migration mode, I get around 1,6 GiB/s. This is still half the speed I get with iperf on one parallel test transfer... Are there...

Hi, ich have a 5 PVE Cluster on LINSTOR and DRBD. At VM migration, It can only do over Restart Mode, No Online Mode have to choice. How can I realize live migration on linstor-drbd? thanks

The usual failure looks like: ... 2021-08-03 15:24:47 migration active, transferred 32.6 GiB of 32.0 GiB VM-state, 120.2 MiB/s 2021-08-03 15:24:48 migration active, transferred 32.7 GiB of 32.0 GiB VM-state, 117.0 MiB/s 2021-08-03 15:24:49 migration active, transferred 32.8 GiB of 32.0 GiB...

I'm apologizing to the Proxmox admins first -- they were very quick to respond to my original post on this topic but I wasn't ready to do the testing they'd asked for. Now that I have the logs they've asked for, I'm hoping I can nudge a response. My forum post is below and I'd appreciate any...