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Update CephOSDDiskUnavailable runbook #57

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May 11, 2022
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Update CephOSDDiskUnavailable runbook #57

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28 changes: 27 additions & 1 deletion docs/modules/ROOT/pages/runbooks/CephOSDDiskUnavailable.adoc
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Original file line number Diff line number Diff line change
Expand Up @@ -8,4 +8,30 @@ This alert fires if an OSD has been removed from the cluster with `ceph osd out`

== icon:bug[] Steps for debugging

// Add detailed steps to debug and resolve the issue
https://rook.github.io/docs/rook/v1.7/ceph-osd-mgmt.html#remove-an-osd[Official documentation]

Check if the osd is still shown in `osd tree`.
----
$ ceph osd tree
ID CLASS WEIGHT TYPE NAME STATUS REWEIGHT PRI-AFF
-1 1.95319 root default
-5 0 host cluster-data-0zqs7m
-7 0.48830 host cluster-data-18cmn4
1 hdd 0.48830 osd.1 up 1.00000 1.00000
-3 0.48830 host cluster-data-2twz6w
2 hdd 0.48830 osd.2 up 1.00000 1.00000
-9 0.48830 host cluster-data-3wxznf
3 hdd 0.48830 osd.3 up 1.00000 1.00000
-11 0.48830 host cluster-data-4z5nv6
4 hdd 0.48830 osd.4 up 1.00000 1.00000
----

In the output above `cluster-data-0zqs7m` is still shown.

You can check the crush map and find that `cluster-data-0zqs7m` is also reported.

Delete it from the crush map.
----
$ ceph osd crush remove cluster-data-0zqs7m
----