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2.2 KiB
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66 lines
2.2 KiB
ReStructuredText
.. _ceph-volume-lvm-zap:
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``zap``
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=======
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This subcommand is used to zap lvs, partitions or raw devices that have been used
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by ceph OSDs so that they may be reused. If given a path to a logical
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volume it must be in the format of vg/lv. Any filesystems present
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on the given lv or partition will be removed and all data will be purged.
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.. note:: The lv or partition will be kept intact.
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.. note:: If the logical volume, raw device or partition is being used for any ceph related
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mount points they will be unmounted.
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Zapping a logical volume::
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ceph-volume lvm zap {vg name/lv name}
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Zapping a partition::
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ceph-volume lvm zap /dev/sdc1
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Removing Devices
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----------------
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When zapping, and looking for full removal of the device (lv, vg, or partition)
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use the ``--destroy`` flag. A common use case is to simply deploy OSDs using
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a whole raw device. If you do so and then wish to reuse that device for another
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OSD you must use the ``--destroy`` flag when zapping so that the vgs and lvs
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that ceph-volume created on the raw device will be removed.
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.. note:: Multiple devices can be accepted at once, to zap them all
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Zapping a raw device and destroying any vgs or lvs present::
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ceph-volume lvm zap /dev/sdc --destroy
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This action can be performed on partitions, and logical volumes as well::
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ceph-volume lvm zap /dev/sdc1 --destroy
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ceph-volume lvm zap osd-vg/data-lv --destroy
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Finally, multiple devices can be detected if filtering by OSD ID and/or OSD
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FSID. Either identifier can be used or both can be used at the same time. This
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is useful in situations where multiple devices associated with a specific ID
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need to be purged. When using the FSID, the filtering is stricter, and might
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not match other (possibly invalid) devices associated to an ID.
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By ID only::
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ceph-volume lvm zap --destroy --osd-id 1
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By FSID::
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ceph-volume lvm zap --destroy --osd-fsid 2E8FBE58-0328-4E3B-BFB7-3CACE4E9A6CE
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By both::
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ceph-volume lvm zap --destroy --osd-fsid 2E8FBE58-0328-4E3B-BFB7-3CACE4E9A6CE --osd-id 1
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.. warning:: If the systemd unit associated with the OSD ID to be zapped is
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detected as running, the tool will refuse to zap until the daemon is stopped.
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