Hello Team, I have configured ceph as a multibackend for openstack. I have created 2 pools . 1. Volumes (replication size =3 ) 2. poolb (replication size =2 ) Below is the details from /etc/cinder/cinder.conf enabled_backends=rbd-ceph,rbd-cephrep [rbd-ceph] volume_driver=cinder.volume.drivers.rbd.RBDDriver rbd_pool=volumes volume_backend_name=ceph rbd_user=volumes rbd_secret_uuid=34c88ed2-1cf6-446d-8564-f888934eec35 volumes_dir=/var/lib/cinder/volumes [rbd-cephrep] volume_driver=cinder.volume.drivers.rbd.RBDDriver rbd_pool=poolb volume_backend_name=ceph1 rbd_user=poolb rbd_secret_uuid=d62b0df6-ee26-46f0-8d90-4ef4d55caa5b volumes_dir=/var/lib/cinder/volumes1 when I am attaching a volume to a instance I am getting "DeviceIsBusy: The supplied device (vdb) is busy" error. Please let me know how to correct this.. Regards, Malleshi CN ________________________________ This message is for the designated recipient only and may contain privileged, proprietary, or otherwise confidential information. If you have received it in error, please notify the sender immediately and delete the original. Any other use of the e-mail by you is prohibited. Where allowed by local law, electronic communications with Accenture and its affiliates, including e-mail and instant messaging (including content), may be scanned by our systems for the purposes of information security and assessment of internal compliance with Accenture policy. ______________________________________________________________________________________ www.accenture.com -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.ceph.com/pipermail/ceph-users-ceph.com/attachments/20140912/de7e6370/attachment.htm>