Hello,
I 've tried today to update my OpenStack installation to the latest
Ocata version.
What I did was to shutoff all running instances, perform all updates
and then rebooted controller and compute nodes.
All seemed to have finished successfully but unfortunately when I tried
to power on instances that had attached to them volumes (which are
provided by Ceph) I got the following error:
libvirtError: unsupported configuration: Found duplicate drive address
for disk with target name 'sda' controller='0' bus='0' target='0'
unit='0'
and the instance status now is "Error" and "No State" as a Power state.
This happened only to the instances that already had volumes attached
to them. All the rest instances booted up normally.
I have tried to reset the states of the problematic instances using:
nova reset-state --active $instance_id and then take a snapshot of them
so that I can delete and recreate them.
Unfortunately although the state update was successful the snapshot
couldn't be taken because of this :
InstanceNotRunning: Instance $instance_id is not running.
Any ides of what can I do in order to start my instances again? Any bug
which is related?
Best regards,
G.
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