Why is my ceph cluster usage (ceph df or rados df output) higher than the total pools size ?
Issue
- Why is my ceph cluster usage (ceph df or rados df output) higher than the total pools size ?
- I want to understand OSD disk usage
- Ceph OSD total usage shows me 15TB, but when I calculate by individual pools size, overall size is coming up to 11TB including replicas on pools. I want want to understand where the other 4Tb is getting used.
Environment
- Red Hat Ceph Storage 1.2.3
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