Okay I can edit the VM XML to use virtio NIC model instead. https://askubuntu.com/questions/552036/where-is-the-list-of-supported-device-emulations-in-kvm
But, is there an option on the UI/API to select NIC model during/after VM creation? If not, maybe a new feature that can be added in future versions. My suggestion since CloudStack UI looks more like a public cloud use, to allow changing the model only by Administrators. On Wed, 4 Dec 2024, 12:36 Muhammad Hanis Irfan Mohd Zaid, < hanisirfan.w...@gmail.com> wrote: > I have a VM running Windows Server 2022 on a KVM hypervisor. Currently, > it's using Intel PRO/1000 MT as the network adapter. I would like for it to > use VirtIO NIC as I've already installed the necessary drivers and QEMU > agent. How can I do it? Based on this ( > https://users.cloudstack.apache.narkive.com/wDIB00YQ/how-do-you-customize-cs-vms-on-kvm > ): > > > > > > *Normally (at least with KVM):- The base disk (OS) will be IDE- All extra > disks will be VirtIO- Networking depends on the 'OS Type' (not sure where > this is defined atthe backend)- To use VirtIO Networking, select the OS > Type of 'Other PV (xx-bit)'* > > Any way to change the defaults? > > Another question is regarding Ceph RDB performance for primary storage. > We've a virtualized Ceph cluster running on vSphere (I know is not the best > setup). The underlying ESXi is running at least 10G NICs. The Ceph VMs are > using VMXNET3 for its NIC, and SCSI controller for the disks. vSphere > datastore is using iSCSI SAN from Dell with, maybe as I remembered, 7200RPM > HDDs. 5 Ceph nodes, 2 OSD (1 TiB) each. I'm getting around 11 MiB Client > Throughput at most on Ceph. I felt quite significant slow performance for > operations e.g. converting snapshot/volume to template, launching new VMs > etc. > > Any thoughts? >
