Ceph 1. Preface This blog focuses on the paper, Ceph: A Scalable High-Performance Distributed File System. Note that this paper was written in 2006 and the implementation of it might be different from what is described in the paper (and here). Details on more in-depth concepts, such as CRUSH, Metadata Server and Object Storage Device cluster are skipped in this blog (might include it in future blogs). 2. Introduction Ceph is distributed file system that builds on several philosophical and design principles. 2.1. Philosophical Principles Starting with philosophical principles, Ceph is open source . This means that it is free to use, free from being vendor specific, free to modify and free to share. Secondly, Ceph is Community-focused means that anybody can decide future step, anybody can fix a bug and update the documentation because all of us as a whole are smarter than some of us, so we can end up with better product. 2.2. Design Principles First, Ceph is Scalable . ...
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