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Hi there, I noticed that sometimes backups will just fail with either of two messages: or The problem is that this occurs randomly with some VM backups while others just run. If I test the backup storage from a PVE node, by executing this mulitple times in a row: It mostly works and show...

Hi all, after an upgrade (on Friday night) to Proxmox 7.x and Ceph 16.2, everything seemed to work perfectly. Sometime early morning today (sunday), the cluster crashed. 17 out of 24 OSDs will no longer start most of them will do a successful ceph-bluestore-tool fsck but some will have an...

Hi there, I just noticed that the shipped version of openvswitch (2.12.x on Proxmox VE 6.3) does not yet support specifying a primary member for an active-backup bond. Unfortunately, this means that there is no clearly defined state. Newer versions (since 2.14.x, I believe) do have that...

I just added a node to my test cluster to try and work with PBS. My cluster network is done using openvswitch and I was disappointed in that the PBE server software does not seem to work with this setup. root@test07:~# proxmox-backup-manager network list...

Hi all, I just upgraded my cluster to Proxmox VE 6.1 and wanted to give the updated krbd integration a spin. So, I set my rbd storage to use krbd and then tried to migrate a vm to a different node. This is what I got: 2019-12-08 11:49:22 starting migration of VM 211 to node 'srv01'...

Hi there, I use VMs with ceph / rbd backend for storage and am confused about the cache settings: On the wiki (https://pve.proxmox.com/wiki/Performance_Tweaks) the different caching options are explained. And from the description there I would have thought that writethrough is the thing to use...

I have VMs with disk images either on ceph or on lvm. When restoring from a backup to ceph, I benefit from: space reduction due to 4K zero blocks as unused / empty blocks will not be allocated on ceph. So far so good. Now, I wanted to move a disk image from lvm (NOT lvm-thin!) to ceph. And in...

I saw some threads on something similar but none of them looked like the issue I have. Apologies if I overlooked a thread already covering this. Anyway: I cannot create a new monitor on my cluster. Or rather, it gets created but never gets quorum. I tried doing this via: - Web UI - pveceph...

Hi there, after upgrading a test-cluster to PVE 5.5, everything worked fine including ceph. However, if I try to add another osd, it does all the preparation but is unable to start the osd. what is immediately obvious is this: The partition layout is different than the old disks: using gdisk...

Hi all, I have the following cluster setup: 3 nodes a Netgear XS712T 10G switch node 1 uses port 1 on the switch, node 2 port 2, etc. port 12 on the switch is my uplink to the internet. I use vlans to seperate different kinds of traffic. vlan 5 is for internal PVE traffic with ports 1, 2...

Hi all, I just tried to enable the 'iothread' flag for a disk on a test VM: The disk is configured like this (from /etc/pve/qemu-server/100.conf): scsi0: disks:vm-100-disk-1,cache=writeback,discard=on,size=4G The scsi-backend is virtio. The popup allows me to select the checkbox, but clicking...

Hi all, does anything within proxmox depend on systemd? Or could I remove it and revert to sysvinit? I do that on boxes I administer, but wonder if it is possible on proxmox. Thanks, Martin

Hi all, I was thinking about adding a (server class) SSD each to my three ceph nodes. Currently, each node has two OSDs and the journal for each is on the drive itself. Now, I have a few questions about concepts: - Can the two journals reside on the same partition on the SSD? - Or do I have to...

Hi all, I am a bit confused w/r to the visibility of a VM's LVM devices from the PVE host. Inside LVMs I have partitions like this: /dev/vda1 => /boot /dev/vda2 => extended partition /dev/vda5 => LVM physical volume and then one logical volume for root and one for swap. This is the result of...

Hi, Since 3.4, there is this 'Enable numa' checkbox. I am a bit confused as to what implications enabling this has? Does it mean 'this host system is numa, therefore make use of CPU pinning, restrict memory to come from the used Core's CPU node, etc. to optimize the guest's performance' ? Or...

Hello everyone, I have a three-node cluster running including ceph and would like to know if the following is possible: If one of the nodes goes down, I would like to be able to start one of the dead node's VMs on a remaining node. This is decidedly not about HA, fencing and the like, but about...

Hi all, Currently, I have the following setup: I run a pve cluster with 3 nodes. Each node has two gigabit network interfaces one with a public management IP and one on an internal switch with a private IP. Now, since the public IPs are not on the same network, I created the cluster using the...