Mar 6, 2025 · 3 min read · Overview This document explains step-by-step how to safely remove OSDs from a live Ceph cluster without data loss or downtime. Continuously monitoring the cluster's health during the process is critically important. Preparations Cluster Health: Befo...
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Jun 15, 2020 · 2 min read · This article shows how you can find out the list of objects from a RBD block device (eg: VM, volume), the placement group of each object and which OSD they stored. Thus, whenever a VM hits performance issue, you can trace the VM's OSD locations wheth...
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May 10, 2020 · 3 min read · This article shares a step-by-step guide for identifying, troubleshooting, and safely removing a faulty disk/ OSD in a large-scale Ceph storage cluster integrated with OpenStack. It assumes basic familiarity with Ceph commands and requires access to ...
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