Ceph repair note

source/resources/apps/ceph/README.md

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+# See under proxmox docs.
+
+# If a pg shows bad health, ala:
+Possible data damage: 1 pg inconsistent
+
+pg 3.f1 is active+clean+inconsistent, acting [5,2,8]
+
+# Run:
+ceph pg repair [pg with problem]
+
+# For example:
+ceph pg repair 3.f1
+