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    Proxmox cluster questions

    Hello, i have a 8 node proxmox cluster located over two datacenters, 4 on each side. We are still running Proxmox 5.4. Currently all network communication (corosync and normal network communication) is done over one switch per datacenter. I know that is not optimal and i could add a second...
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    Proxmox 5.4 multipath LVM issues

    Hi, long story short: our storage vendor verified everything he could (multipath.conf, udev rules, best practices) but he only officially gives support for RHEL and SLES. Everytime they do an update they take down one controller on the storage side, update it and bring it back online. And...
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    [SOLVED] Problems with Proxmox 5.4 with FC multipath and lvm backend

    Hi, yesterday our manufacturer of our SAN did an upgrade of the firmware which should be interrupt free according to him. Sadly this was not the case. I had a lot of VMs running on proxmox which had read only filesystems which we could mostly fix by doing an fsck on the filesystem. We are...
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    tried to add a new server to our cluster - it failed

    Hi, usually i add a new server to our proxmox cluster via webui. But this time it somehow failed. Now i'm stuck in an undefined state and already tried "pvecm add 192.168.52.76 --force" but it's waiting for quorum forever. pvecm status on new server: pvecm status on cluster: I've set up...
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    metric server performance issues

    Hi, is there a way to configure what data is send to the metric server? I connected to our influxdb via cli and did an "show series" on the Proxmox database and if i counted corretly we have 2000+. There are a lot of network interfaces shown that Proxmox doesn't use at all. The influxdb server...
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    Swap usage on Proxmox node

    Hello, i've got 6 Proxmox nodes in a cluster. 5 of them do not use swap space at all. One node uses all its swap space even when enough RAM is free. root@pm-04:~# free -m total used free shared buff/cache available Mem: 385591 133802 250179...
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    LVM devices still shown in pvesm list after deleting VM

    Hi, i've deleted two VMs (VMID 199 and 201) and the devices are still there. root@pm-01:~# pvesm list vg-cluster01-storage01|grep vm-201 vg-cluster01-storage01:vm-201-disk-1 raw 106300440576 201 root@pm-01:~# pvesm list vg-cluster01-storage01|grep vm-199 vg-cluster01-storage01:vm-199-disk-1...
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    LVM: devices in /dev/mapper/ still shown but no corresponding VM with that ID

    Hi, TL;DR: No VM with ID 171 present but raw devices in /dev/mapper still shown ~$ ssh root@pm-01 qm config 171 Configuration file 'nodes/pm-01/qemu-server/171.conf' does not exist ~$ ssh root@pm-02 qm config 171 Configuration file 'nodes/pm-02/qemu-server/171.conf' does not exist ~$ ssh...
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    LVM: "vgs" takes 5 minutes on one cluster node

    Hey there, we have a Proxmox cluster with six nodes. Everything worked fine before my vacation. Now i'm having some trouble with lvm on one node. "vgs" takes 5 minutes to complete and shows this: vgs Couldn't find device with uuid rptkmO-sIg8-pFcT-FD0M-1RXf-a6zP-eZTw1p. Couldn't find...
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    random VM ends up in paused state after "Bulk migrate"

    Hello, we are running a Proxmox cluster with 5 Hosts, live migration works fine until we do a "Bulk migrate" to another host. A random VM ends up in paused state. Sometimes more than one. The tasks says "Ok" at the end and i'm able to resume the paused VM. We are running Virtual Environment...

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