Why removing data from RBD disk does not free-up space on ceph cluster and do we have to always perform fstrim to free up space?
Issue
- Do we need to return capacity using fstrim command?
- Are there any way I can automatically reclaim disk space for deleted data without performing fstrim?
- If we don't perform fstrim, can the OSDs become full even if deleting the files?
Environment
- Red Hat Ceph Storage
- Red Hat Enterprise Linux 7.X
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