New
#1
Disk I/O throughput on VM
Hi there
USB3 passport self powered HDD (not an SSD) attached via a 4 port un-powered USB 3 hub on KVM / QEMU W10 VM managed decent Macrium image backup in approx 8 mins with perfectly acceptable speed --from the screenshot you can see there's a decent amount of applications installed on this VM. Write speed around 850 Mb/s, Read slightly slower at around 720 Mb/s. (Actually Write should be quicker than Read (on a non SSD device) as Write can buffer the I/O and write bigger chunks to the output device so no surprise there).
Remember also that the VM was stored on a "Classical Spinner HDD" -- although in a RAID 0 array on a Linux Host.
It's worth having a go with KVM / QEMU -- it really is the fastest FREE virtualisation system I've found - especially if you install the windows virtio drivers. (For GUI management of VM's install package libvirt).
The only downside is there's no hot plug of USB stuff (yet--there are some systems I'll have a go with) so you need to shutdown the VM -- add the usb device and then power on again -- no real biggie though.
Cheers
jimbo