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    How to migrate 500 VMs from VMWare to Proxmox, with as little downtime as possible

    Yes, i had the same Problem with ovftool export. For me using sshfs + eatmydata heavily improved speed. You just need to enable ssh on the esxi and then: $ ssh root@<proxmoxnode> # sshfs root@<esxinode>:/vmfs/volumes /mnt/tmp # cd /mnt/tmp/<datastore>/<vmname>/ # eatmydata ovftool...
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    [SOLVED] Network lag / lost packets and much higher cpu usage since upgrade to PVE 8 / Linux 6.5

    I've disabled firewall on interface level: this reduced the lag. Thats a bit weird, because firewall was already disabled at datacenter and node level.
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    [SOLVED] Network lag / lost packets and much higher cpu usage since upgrade to PVE 8 / Linux 6.5

    perf_6.5 record -F 99 -p 4072637 -g -- sleep 30 perf_6.5 report -n --stdio
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    [SOLVED] Network lag / lost packets and much higher cpu usage since upgrade to PVE 8 / Linux 6.5

    We've upgraded PVE from 7 to 8 and also the Kernel from 6.2 to 6.5.11-6-pve: since these changes, the CPU-usage of the kvm-process is much higher then before. Before the upgrade the idle process usage was ~2%, and never above ~50% now after the upgrade the idle cpu usage is at ~20% and it goes...
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    [SOLVED] enable kernel lockdown in PVE

    This thread is about lockdown and it works with kernel 6.5: # cat /proc/version /sys/kernel/security/lsm Linux version 6.5.11-6-pve (build@proxmox) (gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40) #1 SMP PREEMPT_DYNAMIC PMX 6.5.11-6 (2023-11-29T08:32Z)...
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    [SOLVED] enable kernel lockdown in PVE

    Seems with PVE 8.1 / Kernel 6.5 lockdown is enabled. https://git.proxmox.com/?p=pve-kernel.git;a=commitdiff;h=345bdbd26477f976b2f1807112d43dfe1e666b6e
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    [TUTORIAL] Get Fingerprint of Proxmox Backup Encryption Key in python

    I wanted to calculate the fingerprint of the encrypton key in python, thats what works for me: import base64 import hashlib import hmac import json import sys def get_fingerprint(encryptionkey): b = base64.b64decode(encryptionkey) id_key = hashlib.pbkdf2_hmac('sha256', b...
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    Loosing IPv6 connectivity after some time

    I'm pretty sure the problem depends on the gateway / switch. As the gateway is configured by my provider idk whats configured there. https://pve.proxmox.com/wiki/Multicast_notes#Disabling_IGMP_Snooping_.28not_recommended.29 : "Snooping should be enabled on either the router / switch or on the...
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    Loosing IPv6 connectivity after some time

    dhcp-v6 no. firewall is disabled. no need to test as the firewall is disabled. Disabling multicast_snooping clearly fixed the problem: before every 3-5h the connection was lost.
  10. A

    Loosing IPv6 connectivity after some time

    I've hit the same problem. https://pve.proxmox.com/wiki/Multicast_notes#Linux:_Disabling_Multicast_snooping_on_bridges /etc/network/interfaces: post-up ( echo 1 > /sys/devices/virtual/net/$IFACE/bridge/multicast_querier ) post-up ( echo 0 > /sys/class/net/$IFACE/bridge/multicast_snooping )
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    Vlan 1000 not working

    I've hit the same problem, i filled a bug report: https://bugzilla.proxmox.com/show_bug.cgi?id=4896
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    [SOLVED] enable kernel lockdown in PVE

    it seems the linux kernel shipped with PVE doesn't have lockdown support: $ cat /sys/kernel/security/lsm capability,yama,apparmor (output of pve-kernel-6.2.9-1-pve) is there a reason why its disabled at compile time? i couldn't find any info about it, the default ubuntu kernel seems to...
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    ZFS Kernel Panic

    There is no kernel panic in zfs_error.log. Its a hang: "INFO: task receive_writer:3811325 blocked for more than 121 seconds."
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    Zeitsprünge in VMs seit PVE 7.2

    klingt mir auch wie https://bugzilla.proxmox.com/show_bug.cgi?id=4073 vermutlich hilft als workarround ein downgrade auf pve-kernel 5.13.
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    [Proxmox 7.2-3 - CEPH 16.2.7] Migrating VMs hangs them (kernel panic on Linux, freeze on Windows)

    sadly no. downgraded all nodes to "Linux version 5.15.30-2-pve": still the same hang after migration the vms between the hosts. i guess next should be to downgrade pve-qemu-kvm?!
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    [Proxmox 7.2-3 - CEPH 16.2.7] Migrating VMs hangs them (kernel panic on Linux, freeze on Windows)

    possible the same problem: https://bugzilla.proxmox.com/show_bug.cgi?id=4073 or https://forum.proxmox.com/threads/vm-hang-after-live-migration-since-upgrade-to-pve-7-2-with-bug-soft-lockup.109754/
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    vm hang after live migration since upgrade to pve 7.2 with "BUG: soft lockup"

    i've filled a bug report: https://bugzilla.proxmox.com/show_bug.cgi?id=4073
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    vm hang after live migration since upgrade to pve 7.2 with "BUG: soft lockup"

    i don't understand what you mean. our physical host runs flawless, only the vm hangs for us. sounds like a different problem. if so: please create a new thread.
  19. A

    vm hang after live migration since upgrade to pve 7.2 with "BUG: soft lockup"

    since the upgrade to pve 7.2 linux vms hang after live migration, see the screenshot. the vm is pingable but ssh login doesn't work any more. an example vm config: agent: 1,fstrim_cloned_disks=1 balloon: 16000 boot: order=scsi0 cores: 14 machine: q35 memory: 12000 name: serverhang net0...
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    [SOLVED] are the "chunk" files compressed?

    can you point to the code where its decided if its compressed or not?

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