Hi, Your steps are wrong, you only create a volume to attach a RBD device, not to boot from it. There is nothing to boot to with your volume since it's empty. First you need to create and register a new RAW image to glance like so: # glance image-create --name centos6_min_raw --disk-format raw --container-format ovf --file /var/images/centos6_min_raw --is-public True +------------------+--------------------------------------+ | Property | Value | +------------------+--------------------------------------+ | checksum | b23670a77cdb3c7d76cc30a40709d1a7 | | container_format | ovf | | created_at | 2012-10-22T21:55:30 | | deleted | False | | deleted_at | None | | disk_format | raw | | id | 6f0ba2c7-0c72-4d1a-b35c-6e833ebbadaa | | is_public | True | | min_disk | 0 | | min_ram | 0 | | name | centos6_min_raw | | owner | 0eec5c34a7a24a7a8ddad27cb81d2706 | | protected | False | | size | 10737418240 | | status | active | | updated_at | 2012-10-22T22:01:23 | +------------------+--------------------------------------+ Then you need to create a volume from this image: # cinder create --image-id 6f0ba2c7-0c72-4d1a-b35c-6e833ebbadaa --display-name boot-from-rbd 15 Check what happen: # cinder list +--------------------------------------+-------------+---------------+------+-------------+-------------+ | ID | Status | Display Name | Size | Volume Type | Attached to | +--------------------------------------+-------------+---------------+------+-------------+-------------+ | 50ba4f6a-a8c5-4f9a-9beb-78270cf7bb93 | downloading | boot-from-rbd | 15 | None | | +--------------------------------------+-------------+---------------+------+-------------+-------------+ After a couple of seconds you should have: # cinder list +--------------------------------------+-----------+------------------+-------+-------------+-------------+ | ID | Status | Display Name | Size | Volume Type | Attached to | +--------------------------------------+-----------+------------------+-------+-------------+-------------+ | 61a92552-f7f8-4bf2-bc4f-44a8f81c9a53 | available | boot-from-rbd | 15 | None | | +--------------------------------------+-----------+------------------+-------+-------------+-------------+ Then you're ready to boot from it now :). This is roughly what you need to do, for more consult the ceph wiki: http://ceph.com/docs/master/rbd/rbd-openstack/ -- Regards, Sébastien Han. On Thu, Feb 14, 2013 at 3:00 PM, Wido den Hollander <wido@xxxxxxxx> wrote: > (Bringing it back to the list) > > On 02/14/2013 02:54 PM, Khdher Omar wrote: >> >> HI , >> >> Thanks for response. In fact , I am making tests without usage of cephx >> or any other authentication mecanism. >> I am looking for a proof of concept with basic boot from volume. >> >> is cephx required for that issue ? >> > > No, cephx is not required. It's just that I noticed it. > > Looking at the XML a bit further I don't see a monitor host defined, there > should be something like: > > <source protocol='rbd' name='rbd/3b987fba-5153-4e51-b346-cfe20ecd9d27'> > <host name='ip.of.monitor.host' port='6789'/> > </source> > > But I think that librbd/librados in this case reads the /etc/ceph/ceph.conf > instead of getting all the arguments through libvirt. > > On the compute node, do things links: > $ rbd ls > $ rbd info <image name> > > Wido > >> Omar >> >> ------------------------------------------------------------------------ >> *De :* Wido den Hollander <wido@xxxxxxxx> >> *À :* ceph-users@xxxxxxxxxxxxxx >> *Envoyé le :* Jeudi 14 février 2013 14h45 >> *Objet :* Re: RBD boot from volume in OpenStack with Ceph >> >> >> Hi, >> >> On 02/14/2013 12:44 PM, Khdher Omar wrote: >> > 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 >> > 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: >> > <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> >> >> I'm not so familiar with OpenStack, but looking at the XML from libvirt >> I'm missing a "secret". >> >> Are you using cephx? If so, did you define a libvirt secret and >> configure the UUID in Nova? >> >> Wido >> >> > 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 >> > it seems that the if field shows none. >> > Is there any explanation that KVM can't read that volume ? >> > Thanks for any response ! >> > >> > >> > _______________________________________________ >> > ceph-users mailing list >> > ceph-users@xxxxxxxxxxxxxx <mailto:ceph-users@xxxxxxxxxxxxxx> >> >> > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com >> > >> >> >> -- >> Wido den Hollander >> 42on B.V. >> >> Phone: +31 (0)20 700 9902 >> Skype: contact42on >> _______________________________________________ >> ceph-users mailing list >> ceph-users@xxxxxxxxxxxxxx <mailto:ceph-users@xxxxxxxxxxxxxx> >> http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com >> >> > > > -- > Wido den Hollander > 42on B.V. > > Phone: +31 (0)20 700 9902 > Skype: contact42on > _______________________________________________ > ceph-users mailing list > ceph-users@xxxxxxxxxxxxxx > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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