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A comment on Modern HDDs have gotten somewhat better.

Re:Modern HDDs have gotten somewhat better by zeckalpha on Wednesday June 22, 2022 @05:41PM (#31842221)
Using a single Prometheus node with redundant drives rather than redundant nodes with single drives is an odd choice to me. Why replicate at block level when layer 7 has support?
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Re:Modern HDDs have gotten somewhat better by siebenmann on Wednesday June 22, 2022 @07:20PM (#31843167)
A multi-node Prometheus setup is significantly more complex to design and operate than a Linux software RAID mirror, especially once you throw in Grafana, Alertmanager, and so on. Distributed anything makes it harder. The layer 7 may 'support' this, but it's not a plug and play setup.

(It also requires more hardware.)

(I'm the author of the linked-to entry.)

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