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?
