Delete a VM in an error state
Quick script to delete all the intances in error state.
NFS over RBD
Since CephFS is not most mature component in Ceph, you won’t consider to use it on a production platform. In this article, I offer a possible solution to expose RBD to a shared filesystem.
Remove a MDS server from a Ceph cluster
Quick tip.
If you don’t use CephFS, you don’t need a MDS server. However if you installed it simply to try CephFS and if you’r done playing with it here is how to delete the MDS server.
Download a Glance image from RBD
Quick tip.
If you want to download a glance image stored in a RBD backend.
Use RBD on a client
Quick tip on Ceph. The linux kernel RBD (rados block device) driver allows striping a linux block device over multiple distributed object store data objects. The libceph module takes care of that.
The War for Open Source Clouds
Little study about the recent release of CloudStack as Apache Licence. Little battle between OpenStack and CloudStack, FIGHT!