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https://github.com/ceph/ceph
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44 lines
802 B
ReStructuredText
44 lines
802 B
ReStructuredText
============================
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Resizing the RADOS cluster
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============================
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Adding a new OSD to the cluster
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===============================
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Briefly...
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#. Allocate a new OSD id::
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$ ceph osd create
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123
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#. Make sure ceph.conf is valid for the new OSD.
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#. Initialize osd data directory::
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$ ceph-osd -i 123 --mkfs --mkkey
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#. Register the OSD authentication key::
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$ ceph auth add osd.123 osd 'allow *' mon 'allow rwx' -i /var/lib/ceph/osd-data/123/keyring
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#. Adjust the CRUSH map to allocate data to the new device (see :ref:`adjusting-crush`).
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Removing OSDs
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=============
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Briefly...
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#. Stop the daemon
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#. Remove it from the CRUSH map::
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$ ceph osd crush remove osd.123
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#. Remove it from the osd map::
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$ ceph osd rm 123
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See also :ref:`failures-osd`.
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