About RBD, Rados Block Device

For anybody enjoying Latin pop in the 2000s, RBD was a popular Mexican pop band from Mexico City labeled by EMI Virgin. The group achieved international success from 2004 until their separation in 2009 and sold over 15 million records worldwide, making them one of the best-selling Latin music artists of all time. The group […]

Protecting your Ceph pools against removal or property changes

One of the dangers of Ceph was that by accident you could remove a multi TerraByte pool and loose all the data. Although the CLI tools asked you for conformation, librados and all it’s bindings did not. Imagine explaining that you just removed a 200TB pool from your storage system due to a typo in […]

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 […]

Ceph distributed storage with CloudStack

As we are nearing the CloudStack 4.0 release I figured it was time I’d write something about the Ceph integration in CloudStack 4.0 In the beginning of this year we (my company) decided we wanted to use CloudStack for our cloud product, but we also wanted to use Ceph for the storage. CloudStack lacked the […]