a4612b34b1
Add text updates to improve customer understanding in disk replacement procedure. Change-Id: I3b67a9b9ace65286b4ad34044c60ef7e8a1393c3 Signed-off-by: Elisamara Aoki Goncalves <elisamaraaoki.goncalves@windriver.com>
76 lines
2.1 KiB
ReStructuredText
76 lines
2.1 KiB
ReStructuredText
.. _replace-osds-on-an-aio-sx-single-disk-system-without-backup-951eefebd1f2:
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===========================================================
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Replace OSDs on an AIO-SX Single Disk System without Backup
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===========================================================
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.. rubric:: |proc|
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#. Get a list of all pools and their settings (size, min_size, pg_num, pgp_num).
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.. code-block:: none
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~(keystone_admin)$ ceph osd lspools # list all pools
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~(keystone_admin)$ ceph osd pool get $POOLNAME $SETTING
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Keep the pool names and settings as they will be used in step 12.
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#. Lock the controller.
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.. code-block:: none
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~(keystone_admin)$ system host-lock controller-0
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#. Remove all applications that use ceph pools.
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.. code-block:: none
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~(keystone_admin)$ system application-list # list the applications
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~(keystone_admin)$ system application-remove $APPLICATION_NAME # remove
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application
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Keep the names of the removed applications as they will be used in step 11.
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#. Make a backup of /etc/pmon.d/ceph.conf to a safe location and remove the
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ceph.conf file from the /etc/pmon.d folder.
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#. Stop ``ceph-mds``.
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.. code-block:: none
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~(keystone_admin)$ /etc/init.d/ceph stop mds
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#. Declare ``ceph fs`` as failed and delete it.
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.. code-block:: none
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~(keystone_admin)$ ceph mds fail 0
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~(keystone_admin)$ ceph fs rm <ceph fs filename> --yes-i-really-mean-it
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#. Allow Ceph pools to be deleted.
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.. code-block:: none
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~(keystone_admin)$ ceph tell mon.\* injectargs
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'--mon-allow-pool-delete=true'
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#. Remove all the pools.
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.. code-block:: none
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~(keystone_admin)$ ceph osd pool ls | xargs -i ceph osd pool delete {}
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{} --yes-i-really-really-mean-it
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#. Shutdown machine, replace disk, turn it on and wait for boot to finish.
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#. Move the backed up ceph.conf from step 4 to /etc/pmon.d and unlock the
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controller.
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#. Add the applications that were removed in step 3.
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#. Verify that all pools and settings listed in step 1 are recreated.
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.. warning::
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This procedure does not include a backup, so it might cause the loss of
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|OSD| data. |