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    can't figure out how to get rid of "ghost" Ceph mons, so can't set up new Ceph environment on existing cluster

    see above. Proxmox 7.3, Ceph Pacific. when trying to finish initializing the cluster, I get this: no monitors are intentionally configured, but it still seems to "know" about two mons that were on two hosts which will not be part of the new Ceph cluster. those mons aren't there anymore and I...
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    new install with Ceph: 4 nodes, clock skew always detected on 2 mons, constant "active+clean+remapped" status for 5 pgs, poor performance

    well, I "solved" my cephx problem (https://forum.proxmox.com/threads/new-install-cannot-create-ceph-osds-bc-of-keyring-error.119375/) by disabling cephx now, however, I always have clock skew being complained about on the Ceph dashboard (ex: mon.ganges clock skew 0.131502s > max 0.05s (latency...
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    new install, cannot create Ceph OSDs bc of keyring error

    hi - I have a new install of PVE with 4 nodes, all with Ceph installed. when I go to create OSDs, specifically two on one 2TB NVMe, I get this: root@riogrande:/etc/pve/priv# ceph-volume lvm batch --osds-per-device 2 /dev/nvme0n1 --> DEPRECATION NOTICE --> You are using the legacy automatic disk...
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    7.3-3, three node cluster: one node "question marks" on me and no Ceph connection on it responds *unless it was already there when the problem started

    hi, I have had a problem with one node in my cluster for months now with no idea how to fix it, with no one on this forum or in the Ceph mailing list ever replying, which makes me think no one has ever seen it before and no one has any idea how to troubleshoot it, so I am trying to figure out...
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    one node in 3-node cluster goes into "?" status

    hi, just upgraded to 7.2 and noticing that my cluster is in a state where: my sidebar looks like this: I can't list or start containers on the "?" node, ibnmajid. VMs seem to work fine. Ceph seems to be fine. Info about that node: output of pvecm status: root@ganges:~# pvecm status Cluster...
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    how to force VM shutdown? "trying to acquire lock... got timeout"

    Since my last upgrade to 6.4-13 this happens constantly: root@ganges:~# qm unlock 112 trying to acquire lock... can't lock file '/var/lock/qemu-server/lock-112.conf' - got timeout This makes it so that I cannot unlock or shutdown VMs. This particular one was just stood up. It shouldn't be in...
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    apparently corrupted disk image on Ceph pool - how can I fix this?

    the image appears to be an LVM volume. lvscan does not recognize it when I `rbd -p poolname map imagename` to attach it to the system. does anyone know how I can proceed from here?
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    Ansible community.general.proxmox: can't create containers

    Has anyone successfully used this module? I have tried to follow the directions here and appear to be stuck on something stupid: https://docs.ansible.com/ansible/latest/collections/community/general/proxmox_module.html I have installed the module via ansible-galaxy. As far as I can tell the...
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    lxc serving DNS

    Hi, Was there a change made between 6.1-8 and 6.2-whateverwe'reonnow that would have caused a problem for privileged lxc containers serving DNS? My FreeIPA containers stopped working after I upgraded and restarted.
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    AppArmor denies dbus socket access to ntpd

    Hi, Was wondering why NTP wasn't working on my hosts, then found this in syslog: Jul 20 17:21:36 riogrande kernel: [236932.823729] audit: type=1400 audit(1595283696.540:59): apparmor="DENIED" operation="connect" profile="/usr/sbin/ntpd" name="/run/dbus/system_bus_socket" pid=1921804...
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    PCI passthrough for Folding@Home VM

    Hi folks, I have an AMD GPU I'm trying to pass through to a VM to use for Folding@Home. I've done this so far: amd_iommu=on in the GRUB configuration added these to /etc/modules: vfio vfio_iommu_type1 vfio_pci vfio_virqfd update-initramfs -u -k all rebooted. The problem is I don't see the...
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    Adding cluster network for Ceph

    Hi, I have three existing nodes and want to add a dedicated cluster network for Ceph. Each node will have a two-port NIC connecting each to the other. Is this as simple as editing /etc/pve/ceph.conf and changing the "cluster_network = " setting, or is there more to it than that?
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    Terrible Ceph IOPS performance

    Hi folks, I have a three-node cluster on a 10G network with very little traffic. I have a six-OSD flash-only pool with two devices — a 1TB NVMe drive and a 256GB SATA SSD — on each node, and here’s how it benchmarks: Those IOPS numbers. Oof. How can I troubleshoot this? Someone mentioned that...
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    [SOLVED] Ceph configuration question

    Hi gang, I'm trying to figure out how pools work in Ceph, and trying to figure out what the best configuration of the devices I have would be. I have three machines in my homelab, and between them I have 3 NVMe 1TB drives, six 512GB spinning drives and six 256GB SATA3 SSDs. I'm trying to puzzle...
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    Stupid firewall question

    I've installed the Folding@Home client on my Proxmox server directly, and it is listening on port 36330 according to netstat, but nothing can connect to it. I've stopped pve-firewall. If I nmap the host from my laptop, I can't see 36330 open. What am I forgetting?
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    How to track down IO delay?

    Hi, I have two hosts clustered together, one is an i7-3770 and the other is a Xeon E3-1620. Somewhat recently I've had the i7 machine start showing a lot of IO delay in the metrics console, and it would peg at 99% and slow everything to a crawl for a few minutes. I thought this might be the...
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    [SOLVED] Can't log in to lxc containers w/ AD creds after joining to AD

    Sometime during a -x release of 5.4, I think, I started having this problem where after joining containers to Active Directory with SSSD, the containers would no longer allow AD users to log in, either on the console or via SSH. I was hopeful upgrading to 6.0-7 would resolve this issue, but no...
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    Simple(?) network config Q: how can I create a private network for a set of interfaces?

    So, the usual network interface reserved to get bridged onto the "real" LAN to which your hosts are connected is working fine. What I'd like to do, for the sake of setting up an HPC environment, is have a separate, private network space accessible by another set of virtual adapters that can act...
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    Adding USB-attached storage to one node

    I have a USB3 RAID array attached to one of my nodes. Ideally I'd like to be able to share it among all three, but I don't think that's possible. It would be fine if I could use it on just one node. What is the right way to do this? There it is at sdb. I'd like to use sdc too. ETA: Also, I...
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    Blocking or interfering with UDP?

    Does Proxmox 5 do anything by default that might block or interfere with UDP for containers and VMs? I'm having issues setting up FreeIPA on a VM in Proxmox and the consistent issue is UDP -- it can't reach out to the NTP pool, can't reach out to the NTP server running on a physical domain...

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