Ceph

The other day I needed to migrate a bunch of Openstack VMs (~1T of volumes) from openstack version ‘Stein’ to a brand new ‘Caracal’ platform. The former was using NFS based storage. The latter Ceph, obviously. Glance storage is still NFS mounted. So let’s try to migrate this the ‘Openstack way’. Turns out Openstack (Cinder) needed to copy the data 3 times! Download from glance to some temporary storage Convert the image to ‘raw’ format, even if the uploaded image is already ‘raw’....

Warning: work in progress. In this blog post you will learn how easy it is to setup object storage (cfr. AWS S3) using the Rook Ceph operator in Kubernetes. The Rook object storage quickstart is a good resource (https://rook.io/docs/rook/v1.9/ceph-object.html ) but I experienced a few bumps on the road, and I learned how easy it is to expose the storage with an user friendly web interface. Requirements The other day we needed a storage solution with following requirements:...