Hi, > The openstack was running on one server in my experiment. The VolumeGroup > named ‘cinder-volumes‘ was comprised by a local disk partition whose name was > ‘/dev/sda2’. > > A volume was created in the dashboard, and I tried to attach it to a running > instance. However, the operation was failed. > > The exception in nova/compute.log said that the disk bus ide could not be > hotplugged. > > As known to all, the ide bus cannot be hotplugged to a running instance. > > It seems that the current version used the bus type ‘ide’ as the default one. > > In this case, all the volumes created in the ‘cinder-volumes’ cannot be > hotplugged into the running vm. You can never attach a volume to a suspend > instance in the dashboard. There is no choice to this in the portal. > > How can I choose the type ‘virtio’ when the volume has been attached? > > [root@localhost nova]# nova --version > 2.13.0 > [root@localhost nova]# uname -a > Linux localhost 3.9.4-200.fc18.x86_64 #1 SMP Fri May 24 20:10:49 UTC 2013 > x86_64 x86_64 x86_64 GNU/Linux > [root@localhost nova]#
I had the same issue on my storage node when iet and tgt process was running at the same time. For example in my cinder.conf : iscsi_helper = etadm So i stopped tgt service (service tgt stop) and restart iscsitarget and cinder services . After that everything was ok, perhaps you should try this method. I hope it will help you. -- Yannick Foeillet
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