The
issue about OpenStack related with Ceph. Thus, I was following
documentation in Ceph website on how integrate Ceph with existing
OpenStack environment.
I used Folsom with two nodes. I just configured Ceph with Cinder and Glance and I could make RBD as storage backend for Glance. Still with volumes that i was looking for to boot from it.
I proceed afterwards by :
1. create a new rbd pool on ceph;
2. create new volume [cinder create volume 2 for example];
3. Check if the new volume is added to ceph pool created --> success
4. Finally boot form volume :
nova boot --flavor m1.tiny --image precise-ceph --block_device_mapping vda=ID_VOL:::0 --security_groups=default boot-from-rbd
I used Folsom with two nodes. I just configured Ceph with Cinder and Glance and I could make RBD as storage backend for Glance. Still with volumes that i was looking for to boot from it.
I proceed afterwards by :
1. create a new rbd pool on ceph;
2. create new volume [cinder create volume 2 for example];
3. Check if the new volume is added to ceph pool created --> success
4. Finally boot form volume :
nova boot --flavor m1.tiny --image precise-ceph --block_
last step failed : Instance created but with Error Status.
We could check inside the /var/lib/nova/instance/instance_id/lilbvirt.xml an intersting section:
We could check inside the /var/lib/
<disk type="network" device="disk">
<driver name="qemu" type="raw" cache="none"/>
<source protocol="rbd" name="rbd/volume-e5d5f756-7a9d-47b1-a59d-504c9cf582d5"/>
<target bus="virtio" dev="vda"/>
</disk>
<driver name="qemu" type="raw" cache="none"/>
<source protocol="rbd" name="rbd/
<target bus="virtio" dev="vda"/>
</disk>
basically it seems that the opensstack recognized for RBD using the virtio driver.
We could check the log file 'nova-compute.log' the follwing error line:
self._set_instance_error_state(context, instance['uuid'])
TRACE nova.openstack.common.rpc.amqp libvirtError: internal error Process exited while reading console log output: char device redirected to /dev/pts/6
TRACE nova.openstack.common.rpc.amqp kvm: -drive file=rbd:rbd/volume-e5d5f756-7a9d-47b1-a59d-504c9cf582d5,if=none,id=drive-virtio-disk1,format=raw,cache=none: error connecting
TRACE nova.openstack.
TRACE nova.openstack.
it seems that the if field shows none.
Is there any explanation that KVM can't read that volume ?
Thanks for any response !
Is there any explanation that KVM can't read that volume ?
Thanks for any response !
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