From: Dan Ritter <d...@randomstring.org>
Hi Dan, Thank you for answering ;-)
> First question: when they are just a few minutes old, does the
> serial console work?
Yes, 100%. I always configure serial console for all VMs both on QEMU (libvirt)
and OS side.
> Second question: when the VMs are a few minutes old, does virsh
> shutdown work?
Yes, 100%. In most cases everything works just fine. Until I keep those VMs
running for days... And even then some virtualization hosts are just fine
and one or two has those frozen VMs.
> You probably want to change that to 1 minute or so.
Good point.
> Are the VMs set up to match the local hardware definition or be
> fully emulated?
Matching HW, all virtio, CPU pass-through for everything (=> maximum
performance).
> And, especially: if they are not using virtio for disk and
> network address, try that ASAP.
They do.
==================
<cpu mode='host-passthrough' check='none'/>
...
<disk type='block' device='disk'>
<driver name='qemu' type='raw' cache='none' discard='unmap'/>
<source dev='/dev/..../>
<target dev='sdX' bus='scsi'/>
</disk>
...
<controller type='scsi' index='0' model='virtio-scsi'/>
...
<interface type='bridge'>
<mac address='...'/>
<source bridge='...'/>
<vlan>
<tag id='...'/>
</vlan>
<virtualport type='openvswitch'/>
<target dev='...'/>
<model type='virtio'/>
<driver name='vhost'/>
<link state='up'/>
</interface>
===================
Kind regards,
Robert
