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Learning Ceph - Second Edition by Karan Singh, Vaibhav Bhembre, Anthony D'Atri

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Monitoring Ceph clusters

Monitoring is the process of gathering, aggregating, and processing important quantifiable information about a given system. It enables us to understand the health of the system and its components and provides information necessary to take steps to troubleshoot problems that arise. A well-monitored system will let us know when something is broken or is about to break. Deploying a Ceph cluster involves an orchestration dance among hundreds, thousands, or even tens of thousands of interconnected components including variety of kernels, processes, storage drives, controllers (HBAs), network cards (NICs), chassis, switches, PSUs,and so on. Each of these components can fail or degrade in its own unique way.

External monitoring ...

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