[ovirt-users] Re: cannot stop vm normally
Hi,
On Fri, Oct 15, 2021 at 12:04:22AM +0800, Tommy Sway wrote:
Sometimes, some vm failed to stop it by press the shutdown button on
the
management portal, it will show such message in log: shutdown of vm ***
failed.
And I want to know:
1. why cannot shutdown it normally ?
You should possibly find more information in vdsm.log about why it has
failed.
2. what difference between the shutdown and power off ? (For
example,
what are the different signals sent to the QEMU process)
Power off forcibly stops the VM. From the VM point of view it is similar
to pulling out a power cord from bare metal computer.
Shutdown delivers a request to the guest OS (which may or may not
satisfy the request). If you see an error it means there was a problem
communicating the request to the guest. The request is delivered either
using a guest agent (if one is installed) or using an ACPI event.
Hope this helps,
Tomas