https://www.chenshaowen.com/en/tags/ceph/Recent content in Ceph on Shaowen Chen's WebsiteHugo -- gohugo.ioen©2016 - {year}, All Rights Reserved.Sun, 12 Jul 2026 00:00:00 +0000weeklyhttps://www.chenshaowen.com/en/blog/container-deploy-ceph.htmlSun, 12 Jul 2026 00:00:00 +0000Sun, 12 Jul 2026 00:00:00 +0000https://www.chenshaowen.com/en/blog/container-deploy-ceph.htmlThis article covers single-node validation and three-node production deployment with cephadm. For architecture, operations, and functional testing, see Ceph Architecture and Operations. 1. Disk Preparation An OSD can only use a block device (/dev/sdX, a partition, /dev/loopN). 1.1 Inspecting Available Devices 1 2 3 4 5 6 7 lsblk -o微信公众号MiddlewareContainersCephStorageOperationshttps://www.chenshaowen.com/en/blog/container-deploy-ceph-architecture-operations-and-testing.htmlSat, 11 Jul 2026 00:00:00 +0000Sat, 11 Jul 2026 00:00:00 +0000https://www.chenshaowen.com/en/blog/container-deploy-ceph-architecture-operations-and-testing.htmlCeph is a unified distributed storage system that supports block storage (RBD), object storage (RGW), and file storage (CephFS). The official cephadm can orchestrate each daemon as a container (Docker, or Podman + Containerd); see Deploying Ceph in Containers for details. 1. Architecture 1.1 Topology and Data Paths The diagram below shows a common five-node topology (3 MON + 2 MGR + 5 OSD): MONs only need to come in odd numbers, and in a five-node deployment 3 is enough (tolerating one MON failure); 5 MONs tolerate 2 failures, but the metadata overhead is larger, so there is generally no need to run a MON on every machine.微信公众号MiddlewareContainersCephStorageOperationsArchitecture