A quick note on running CloudStack with RBD on Ubuntu 12.04
When you want to use Ceph as Primary Storage in Apache CloudStack you need a recent version of libvirt with RBD storage pool support enabled. If you want to use Ubuntu 12.04 LTS (Precise) you would need to manually compile libvirt since the default libvirt version doesn’t include RBD storage pool support. But not any […]
Redundant Ceph monitors with Round Robin DNS
One of the unique features of Ceph is that it can be build without any Single Point of Failure. No single machine will take your cluster down when designed properly. Ceph’s monitors play a crucial part in this. To make them redundant you want a odd number of monitors, where 3 is more then sufficient […]