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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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Data can be generated more cost effective than real world data collected. AI can be used and abused – in worst case, our common understanding of the world around us is under attack.
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We trust each other …. sometimes…. Do you really know what people are telling you and you tell to the people ? Because of our natural limitations, the truth might be something else. And there might reasons for it, the behavior natural but the outcome more than questionable.
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Is there a new technology on the horizon ? Let’s wait ?! – It might reveal as a challenge but better to start early. People need time to learn new things.
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Even in IT, we think we know a lot of things but most of the time we hope that the things will work – despite we don’t know it for sure. Can we do better ?
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Concluding the series of collocation, this article provides additional special thoughts and considerations for limited and large Ceph cluster designs.
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What if failure domains aren’t that easy and have developed over time into a complex dependency ? The article gives an example illustrating such a “grown” infrastructure.
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Saving on capacity footprint – using Erasure Coding across multiple failure domains. Getting the right approach for redundancy and durability of data.
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Distribution of data and roles with Ceph across 4 failure domains – a collocation example.
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A simply common approach with 2 main DCs: an example for the calculation of the number of nodes for collocation in Ceph with a common pattern of nearby DCs inherited from legacy data center redundancy.
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The next example of calculation of the number of nodes for collocation in Ceph with respect to failure domains: a more complex cluster with 3 failure domains with replica 3