Re: [libvirt-users] virtual drive performance

Installing the virtio drivers is probably the best option, but is going to remain our last resort because it has further implications like a larger maintenance window. Thanks for pointing us towards the W2016 virtio drivers. Your last email was a little unclear to me. Would you expect a performance boost by changing bus='ide' to bus='scsi'? For instance changing this: <disk type='file' device='disk'> <driver name='qemu' type='qcow2' cache='none'/> <source file='/var/data/virtuals/machines/windows-server-2016-x64/image.qcow2'/> <backingStore/> <target dev='hda' bus='ide'/> <alias name='ide0-0-0'/> <address type='drive' controller='0' bus='0' target='0' unit='0'/> </disk> to the following: <disk type='file' device='disk'> <driver name='qemu' type='qcow2' cache='none'/> <source file='/var/data/virtuals/machines/windows-server-2016-x64/image.qcow2'/> <backingStore/> <target dev='hda' bus='scsi'/> <address type='drive' controller='0' bus='0' target='0' unit='0'/> </disk> Do you see any gotchas in this configuration that could prevent the virtualized guest to power on and boot up? On 2017-06-20 15:12, Gianluca Cecchi wrote: