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Blog articles about Ceph and use cases. A great technology from the community for use in production.
Blog articles about using Ceph with OpenShift Data Foundation and use cases.
Blog articles with thoughts about the IT industry and my view on challenges.
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ODF on a 3-node – or compact – OpenShift cluster. What to remember to plan for.
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First article with examples of calculation of the number of nodes for collocation in Ceph with respect to failure domains: 3 failure domains with replica 3
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As the last article about the foundation of calculation of the number of nodes for collocation, now the additional roles to place across failure domains are discussed.
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Taking the discussion about collocation and number of nodes in Ceph clusters forward, now with respecting failure domains the article discusses the data placement constraints.
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While the previous article in this category provided the preparation of 2 main DC stretch ODF cluster, this one covers the installation.
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[17 min read] An ODF cluster for 2 main DC – preparation OpenShift Data Foundation in the standard installation would be installed using three different failure domains or just on a single failure domain. Many companies, however, have only two main data centers. Such legacy architectures were established for stretched deployments with a shared storage…
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Installing the first ODF cluster – a standard 3 node ODF cluster with local storage via the Local Storage Operator.
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[ 23 min read ] Since a couple of versions, the Red Hat Ceph Storage product supports the collocation of instances of different roles on the same nodes. The instances for those roles cannot be placed randomly together but should follow rules. Those have been described in the docs and in a knowledge base article…
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[12 min read] The installation of OpenShift is thoroughly described but for the sake of completeness of the showcases, OpenShift installation will be the starting point in the lab environment. Because RHV is a supported environment, the installation would be an IPI installation – this would ease the deployment. The provisioning of block devices for…
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The foundation for ODF cluster is a properly designed OpenShift cluster, with failure domains respected and network matching the throughput requirements. This continues the planning discussion started in first article.