Does the speed of the host OS disk affect the speed of virtual machines stored on another disk?

Question

Solid State Drives

Good afternoon.
It is planned to install Windows Server 2019 with the Hyper-V role and three virtual machines in a self-assembled PC from household components.
The virtual machines will be located on a fast NVME SSD. For better disk space utilization, there is an option to install the host OS on a separate, but slower SATA SSD.
Is it possible for virtual machines to suffer performance degradation due to a slower disk? Or after booting the system, the speed of the host OS disk is no longer important and it can even be installed on the HDD without compromising VM performance?

Answer 1

If all Hyper-V files are located on the SSD, then they - the Virtual Machines do not care on which disk the node OS is on, even on a magnetic tape, this will not affect the speed of the VM.
By default, Hyper-V stores VM configuration files (such as VM RAM, so to speak, when you do a Save VM, maybe snapshots, etc.) on node disks. Check in the settings of Hyper-V itself