Recent content by Spiros Papageorgiou

  1. restoring previously passthroughed adapters

    Hi all, I am on Proxmox 5.4.6 and I did a passthrough of an Intel x710 adapter to a VM. The adapter had a interface name on Proxmox (enp59s0f0) and after the VM started, the adapter was removed from Proxmox. I have two questions: - Now I have stopped the VM and I have removed the passthrough...
  2. LVM and convertion to vhd

    Hi all, I would like to convert an LVM based disk to VHD format. I have done it successfully by getting a backup (vma.lzo) and then decompressing it, extracting it and converting it (qemu-img convert). I woud like to do this in fewer steps. So, I have the following questions: - I though of...
  3. NUMA questions

    Hi all, There is an option to select NUMA when you configure a VM's CPU. While I know the basic NUMA concepts, I don't really understand what this checkbox does. So, I have a few questions about it and an application that might benefit from enabling NUMA. Starting from the App, I have a VM that...
  4. lvm/dmsetup nightmares

    Hi Udo, Stoiko and all, I really appreciate your help. Udo's guide is really useful! I managed to resolve the problem, before Udo's reply, so unfortunately I didn't followed Udo's steps. Anyway, my problem device was (from my terminal history): root@hs4:~# dmsetup info...
  5. lvm/dmsetup nightmares

    Hi all, I tried to remove an FC VOL from proxmox and it didn;t go very well. The sequence was this: I had moved the disk of a VM to another VOL. After I did that, i tried to delete the unused disk, but proxmox didn't do it with the message: error with cfs lock 'storage-gix': lvremove...
  6. Storage migration

    Hi again, I would like to ask what is the technology behind storage migration. Is the "source" disk snapshoted before migration (LVM based disk) and if it is, does that mean that the VG that the source LV (VM disk) resides on, needs to have extra room for the sectors written after the...
  7. devmapper does not destroy devices

    Hi all, I have a 5.4-6 proxmox installation. I have connected an iscsi LUN by hand with multipathd. I have given the iscsi disk to LVM and the LVM to proxmox. I used it to transfer a few VMs on it (that was the purpose) and then I needed to disconnect the iscsi from proxmox and migrate the...
  8. Proxmox v 5.0 on HPE Proliant DL380 Gen10

    Hi, My cluster is running for over a year on gen10 and it is fine. I am on Proxmox 5.4-3, right now. Perhaps you have migrated your VMs, from much older Proxmox versions and there are virtual HW incompatibilities? My VMs, were created on the Gen10 cluster itself. Sp
  9. Storage migration

    Hi all, I am running Proxmox 5.4-6 on a 3 node cluster. I have a VM that consumes 15TB of storage, which is LVM based (it sits on FC storage). I would like to do a live migration of this disk, to a new storage (LVM storage, iscsi mounted on proxmox). Keep in mind that the VM is running and the...
  10. replacing host in proxmox

    Hi all, I tried to replace a host in my cluster. I removed the host from the cluster with the command "pvecm delnode hs2", reinstalled from scratch the new host with the same name (hs2) and then added the new host. The hosts was added succesfully, but when i try to migrate a VM, it says...
  11. custom OVMF Bios

    Hi, Black magic. It worked. Here is what i did: I added the line : drive 'if=pflash,unit=0,format=raw,readonly,file=/mnt/pve/useful/OVMF-20160813.fd' in /etc/pve/qemu-server/176.conf . Still complains about a ton of things, but i can get into a bootloader (see below). Then I do: loader > boot...
  12. custom OVMF Bios

    Hi all, I want to run a virtual Nexus 9K (cisco switch) on my Proxmox. There is an qcow2 image that I have used to create a VM in proxmox. The GNS3 project (network simulation) also provide a OVMF-20160813.fd file that I understand it is the UEFI BIOS that the VM must boot from...
  13. proxmox reduce quorum votes / fencing

    Hi Dietmar, Thanx for the answer. Perhaps it would be a nice idea, to put a vibrant warning on the Proxmox GUI, that the cluster is in a state with no node redundancy at the moment. This kind of warning might break my false sense of redundancy because I had 3 active nodes in the cluster...
  14. proxmox reduce quorum votes / fencing

    Hi all, Today, I rebooted one node and every node of cluster rebooted... Now, the details: I have a cluster of 4 nodes, where 1 is constantly down, because it has a hardware failure and we are waiting for spare parts. So, the cluster has 4 nodes, where 3 of them are alive. Now, I rebooted one...
  15. How to resize shared FC LUN

    Hi all, I have a proxmox cluster with a shared FC LUN (managed by LVM). The LUN is full and I would like to resize it. I have resized it on the storage but how do i do it in proxmox? Keep in mind that I'm running multipathd for redudancy and that I have a partition in the LUN. My lsblk looks...

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