51 lines
2.1 KiB
YAML
51 lines
2.1 KiB
YAML
pause:
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description: |
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CAUTION - Set the local osd units in the charm to 'out' but does not stop
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the osds. Unless the osd cluster is set to noout (see below), this removes
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them from the ceph cluster and forces ceph to migrate the PGs to other OSDs
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in the cluster. See the following.
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http://docs.ceph.com/docs/master/rados/operations/add-or-rm-osds/#removing-the-osd
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"Do not let your cluster reach its full ratio when removing an OSD.
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Removing OSDs could cause the cluster to reach or exceed its full ratio."
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Also note that for small clusters you may encounter the corner case where
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some PGs remain stuck in the active+remapped state. Refer to the above link
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on how to resolve this.
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pause-health (on a ceph-mon) unit can be used before pausing a ceph-osd
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unit to stop the cluster rebalancing the data off this ceph-osd unit.
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pause-health sets 'noout' on the cluster such that it will not try to
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rebalance the data accross the remaining units.
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It is up to the user of the charm to determine whether pause-health should
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be used as it depends on whether the osd is being paused for maintenance or
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to remove it from the cluster completely.
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resume:
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description: |
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Set the local osd units in the charm to 'in'. Note that the pause option
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does NOT stop the osd processes.
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replace-osd:
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description: Replace a failed osd with a fresh disk
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params:
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osd-number:
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type: integer
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description: The osd number to operate on. Example 99. Hint you can get this information from `ceph osd tree`.
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replacement-device:
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type: string
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description: The replacement device to use. Example /dev/sdb.
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required: [osd-number, replacement-device]
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additionalProperties: false
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list-disks:
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description: List the unmounted disk on the specified unit
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add-disk:
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description: Add disk(s) to Ceph
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params:
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osd-devices:
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type: string
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description: The devices to format and set up as osd volumes.
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bucket:
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type: string
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description: The name of the bucket in Ceph to add these devices into
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required:
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- osd-devices
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