ram

  1. [SOLVED] [HELP] PVE can not detect all the ram (128G RAM only detects 64GB)

    Hi, everyone. I got an incomprehensible problem in using PVE. My server has installed 8*16 128G RAM, I am confident that the RAM is not broken and that it is correctly inserted. Because both the bios and the BMC can recognize 128G RAM. However, PvE cannot identify 128GB RAM and can only detect...
  2. Memtest86

    I need to launch Memtest86+ at startup of my Proxmox machine. I manage to add it to Grub, but then I don't know how to add it to systemd-boot. I do "proxmox-boot-tool refresh" and only available kernels are added, not Memtest86+. Any ideas?
  3. Memory problem

    Hello, first of all, sorry for my English as it is not my native language. I have a problem with some Proxmox servers and memory RAM. The sum of the memory of all the virtual machines diverges a lot from the total of the Proxmox server. All virtual machines have QEMU Guest Agent installed...
  4. LVM-Thin Ballooning not working - High memory Usage

    Hello, I have some problems with my PVE host and mostly with the RAM management. I attach the screen of my host resources: On this host, I installed one(and only one) VM, that it configured as shown in the following image: The Ballooning is corretly enabled, but I don’t understand why the...
  5. [SOLVED] High RAM consumption

    Hello, I'm not sure if this is normal. PVE is reporting almost 50% RAM usage (out of 56 GiB) while all I have running are 2 lxc containers which combined have under 1 GB of RAM allocated. I do have a Windows 10 VM set up but it is stopped and its RAM is from 8 to 24 GB. When I use top to see...
  6. Moving VMs Between Different Hosts

    Hey all, I normally use the host CPU option when setting up VMs (for best performance). This has worked great for me so far. I have recently setup another host server and set them up in a cluster. The new host has different hardware to the previous servers, so now I have Intel and AMD...
  7. Missing RAM - 128GB Shows as 2GB

    Hello everyone, Basically, I have a SuperMicro 1U with 128GBs of RAM installed. I just installed Proxmox fresh last night on it and it only ever registers 1.83GBs of RAM. The BIOS shows all four sticks populating and shows 128GBs, I tried swapping sticks in and out/different slots and nothing...
  8. Proxmox not allocating set memory to VMs

    I have this weird issue where all of the VMs that I run, do not get the allocated amount of memory. When rebooting the VM, the correct amount of memory is in fact available in the VM, but after a couple hours, the maximum allowed memory in the VM will be way less. The issue is resolved when I...
  9. Windows server dynamic ram

    I need create vm use dynamic ram in proxmox Windows Server 2019 like hyper-v
  10. Best overprovisioning settings for this setup?

    So I'm setting up a small homelab on a PC: CPU: Intel Xeon E31268L v3 - 4 cores 8 threads - Around an i7 4770 in performance RAM: 16GB DDR3 SSD: 128GB mSata => Boot and VMs HDD: 2x8TB HDD 1Gbps Network I'll install Proxmox on that and set up these VMs: 1. OpenMediaVault 6 with the 2x8TB HDD...
  11. [SOLVED] VM usable RAM drops after running for some minutes

    Hi guys, Im running a ubuntu vm and allocated 15gb of ram to it, my server has 32gb total and is only using 60% at the moment. When I reboot the vm and run HTOP it shows all 15gb but after some time it go's to 1,64gb which causes issues like out of memory killer. Anyway to fix this? QEMU and...
  12. Backup RAM overload

    Ich speichere meine Backups täglich auf eine extern eingebundene NAS. Das Problem ist, dass jedes mal, wenn meine Backups gemacht werden meine RAM usage in die Höhe schießt. Normalerweise ist sie bei 30% aber wenn die Backups laufen geht die usage bis auf 80% hoch. Merkwürdigerweise bleibt sie...
  13. [SOLVED] Proxmox 6.4 & Proxmox Backup Server 2.0: unable to backup a 120GB LXC container / arc_prune 99% CPU

    Hi, I've 16GB of RAM on my proxmox host and 1TB zfs root, with containers using approx. 70%/11GB of RAM: total used free shared buff/cache available Mem: 16366624 11155840 2862816 1282280 2347968 3578468 Swap: 0...
  14. Re: Windows VM Memory Full Issues (Driver locked RAM)

    Hi. Continuing https://forum.proxmox.com/threads/windows-vm-memory-full-issues.90295/ thread as it was marked as solved but it's not actually. I have the same problem and the same picture in both Windows Task Manager and Proxmox GUI. VirtIO drivers including balloon seem to be installed: when...
  15. Which would be the best way to configure SWAP memory with HD disks ZFS file root system?

    Hello for everyone, I have an standalone node with 380 GB RAM and CPU usage is normal, 20 CT and 15 VM with Promox 6.3.6, I don't have IO delay. I just now I'm trying to configure a new CT, but I found that the container doesn't have SWAP memory (I did that setup with 2 Gb) so when I start to...
  16. VM Crashing - Out of Memory

    Hi, I have a VM that crashes every 10 days or so. I initially attributed the issue to something in Windows Server 2012R2. I wrote a little script to check status on this VM every 30 seconds, and restart it (and email me) if it crashes. The script just uses this: qm list|grep $VM_NAME |grep...
  17. Anormal ram usage

    Hello, I just installed my Proxmox server. I have a strange phenomenon. The installation is brand new, I have no VMs started and I have constant ram usage at 18Go. Would this be normal behavior with ZFS using available ram to cache? If so, is it quite disturbing because we do not know how to...
  18. Monitoring memory usage using ZFS

    Hi Am trying out Proxmox+ZFS on the same machine. Am new to ZFS. Am monitoring my server with Zabbix and my memory usage is 90%. It is of course mostly ZFS cache but how do I monitor when am running out of memory? Will ZFS always be at 90% so I can set my alarms at 95%? How do you guys monitor...
  19. High Shared memory usage

    Hi, TL;DR : I'm trying to understand what the shared memory part of free means in proxmox I've recently created a new container on a host that reports a 60% memory usage I've got oom-kill that gets invoked because my RAM usage looks like that : total used...
  20. Trying to understand LXC RAM and SWAP allocation

    I have a workstation with 256 GB RAM, and by default the host has only 8 GB SWAP. With the two LXCs I have, as they can potentially use a lot of RAM, I committed 192 GB RAM and 64 GB SWAP to both. My question is, in a situation where both LXC reaches a high usage and they consume more than 256...

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