https://www.chenk.top/en/tags/ceph/Recent content in Ceph on Chen Kai BlogHugoenThu, 30 Mar 2023 09:00:00 +0000https://www.chenk.top/en/cloud-computing/storage-systems/Thu, 30 Mar 2023 09:00:00 +0000https://www.chenk.top/en/cloud-computing/storage-systems/<p><figure class="article-figure"> <img src="https://blog-pic-ck.oss-cn-beijing.aliyuncs.com/posts/en/cloud-computing/storage-systems/illustration_1.png" alt="Cloud Computing (4): Cloud Storage Systems and Distributed Architecture — Chapter overview" loading="lazy" decoding="async" class="content-image"> </figure> </p> <p>When Netflix stores petabytes of video, when Instagram serves billions of photos, when a quant fund replays a year of market data in minutes — behind every one of these workloads is a <em>distributed storage system</em>. Storage looks deceptively simple from a developer&rsquo;s window (<code>PUT key</code>, <code>GET key</code>), but the moment you cross the boundary of a single machine, you inherit a stack of problems that has driven decades of research: how to survive disk failures, how to scale linearly, how to provide a consistency model that does not surprise the application, and how to do all of this while paying cents per gigabyte rather than dollars.</p>