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Do you use ZFS?

Hi, have you already tried to inspect traffic on the interfaces using something like the following? tcpdump -envi vmbr1 'icmp'

The defaults should work most of the times. IBM SVC supports iSCSI, right? Then you can go to Datacenter->Storage->Add iSCSI. The chapter about iSCSI in the reference documentation should be helpful https://pve.proxmox.com/pve-docs/pve-admin-guide.html#storage_open_iscsi This should work...

Hi, the most important repositories for GUI changes are pve-manager and proxmox-widget-toolkit which are available at https://git.proxmox.com/ The code for the guest view is...

Have you imported those from VMware as well or is that oracle VM the first one?

You can try IDE or SATA for the disk. Are other VMs working with the DRBD storage?

Could you post your VM configuration? qm config <vmid> Depending on operating system and previous settings, trying some combinations of BIOS/UEFI and IDE/SATA/SCSI for the VM disk can be necessary.

Installing CentOS as guest OS certainly works. If converting doesn't work then you can create a VM just to run VirtualBox/Vagrant and then run ArkCase nested in that as a start. https://pve.proxmox.com/wiki/Nested_Virtualization#Enable_Nested_Hardware-assisted_Virtualization

Turning settings like tso, gso, rx, off seemed to help a couple of users in the forum that had similar problems => I'd suggest trying that

Might be checksum offloading. What card do you have exactly? What is the output of the following commands? ethtool -k eno1 ethtool -k eno2

The day when your reinstalled Ceph? So first of all, there you can upgrade to Proxmox VE 6.4 with a single apt update; apt full-upgrade. I assume that some caches get full when the performance seems to drop. Therefore the fio tests would be interesting. You would also have to choose something...

When you start the installer, there is a line saying "Install Proxmox VE (Debug mode)". You will then see more logged information. It would be great if you could create a screenshot/photo of everything that says "error" or "network".

Have you been able to solve the problem already? To which version did you upgrade? pveversion -v

Is moving to local-lvm faster? Can you create an additional regular LVM storage on the SSD and compare the speed to the thin volumes?

What versions of Proxmox VE, Ceph & virtio drivers do you use exactly? Have you done any upgrades in the last weeks? pveversion -v Could you maybe run a benchmark in the Windows VM with fio? There are some example commands in the Proxmox VE Ceph Benchmark on page 20. With fio you can control...

Could you please also post your configurations in Proxmox VE? A start would be qm config <vmid> cat /etc/pve/storage.cfg

qm importdisk and qm importovf https://pve.proxmox.com/pve-docs/qm.1.html make it even easier. Those tools are using qemu-img convert internally. A GUI for that is already on our roadmap!

Getting hammered by disk writes does not disqualify VMs per se. With 3 servers you could create a Proxmox VE cluster. One advantage of VMs might then be live-migration.

Thank you for the idea and the use case! Could you please add it to the PMG Bugzilla? There is certainly won't get lost beneath all the new posts.

Hi, thank you for sharing your experience! If you want, you can mark your posts as Solved or Tutorial by editing the prefix of your post :)