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doc/rados: add prompts to placement-groups.rst

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Add unselectable prompts to doc/rados/operations/placement-groups.rst.
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https://tracker.ceph.com/issues/57108

Signed-off-by: Zac Dover <zac.dover@gmail.com>
This commit is contained in:
Zac Dover 2022-12-06 17:07:18 +10:00
parent 1542f341dd
commit 8574cfb847
1 changed files with 12 additions and 6 deletions
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doc/rados/operations/placement-groups.rst
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@ -561,9 +561,11 @@ Set the Number of Placement Groups
To set the number of placement groups in a pool, you must specify the
number of placement groups at the time you create the pool.
See `Create a Pool`_ for details. Even after a pool is created you can also change the number of placement groups with::
See `Create a Pool`_ for details. Even after a pool is created you can also change the number of placement groups with:
ceph osd pool set {pool-name} pg_num {pg_num}
.. prompt:: bash #
ceph osd pool set {pool-name} pg_num {pg_num}
After you increase the number of placement groups, you must also
increase the number of placement groups for placement (``pgp_num``)
@ -573,9 +575,11 @@ algorithm. Increasing ``pg_num`` splits the placement groups but data
will not be migrated to the newer placement groups until placement
groups for placement, ie. ``pgp_num`` is increased. The ``pgp_num``
should be equal to the ``pg_num``. To increase the number of
placement groups for placement, execute the following::
placement groups for placement, execute the following:
ceph osd pool set {pool-name} pgp_num {pgp_num}
.. prompt:: bash #
ceph osd pool set {pool-name} pgp_num {pgp_num}
When decreasing the number of PGs, ``pgp_num`` is adjusted
automatically for you.
@ -583,9 +587,11 @@ automatically for you.
Get the Number of Placement Groups
==================================
To get the number of placement groups in a pool, execute the following::
To get the number of placement groups in a pool, execute the following:
ceph osd pool get {pool-name} pg_num
.. prompt:: bash #
ceph osd pool get {pool-name} pg_num
Get a Cluster's PG Statistics