BlueStore for performance reasons.) FIXME DOCS
* *Erasure coded* pools now have full support for *overwrites*,
- allowing them to be used with RBD and CephFS. `Read more about EC overwrites`_.
+ allowing them to be used with RBD and CephFS. See :doc:`/rados/operations/erasure-code/#erasure-coding-with-overwrites`.
* *ceph-mgr*:
:doc:`/rados/operations/upmap`.
* Each OSD now adjusts its default configuration based on whether the
backing device is an HDD or SSD. Manual tuning generally not required.
- * The prototype `mClock QoS queueing algorithm`_ is now available.
+ * The prototype `mClock QoS queueing algorithm </rados/configuration/osd-config-ref/#qos-based-on-mclock>` is now available.
* There is now a *backoff* mechanism that prevents OSDs from being
overloaded by requests to objects or PGs that are not currently able to
process IO.
- * There is a `simplified OSD replacement process`_ that is more robust.
+ * There is a simplified OSD replacement process that is more robust (see :doc:`/rados/operations/add-or-rm-osds/#replacing-an-osd`).
* You can query the supported features and (apparent) releases of
all connected daemons and clients with `ceph features </man/8/ceph#features>`_.
* You can configure the oldest Ceph client version you wish to allow to
``require_RELEASE_osds`` flags.
- ``ceph osd pg-upmap``, ``ceph osd rm-pg-upmap``, ``ceph osd
pg-upmap-items``, ``ceph osd rm-pg-upmap-items`` can explicitly
- manage `upmap` items (FIXME DOCS).
+ manage `upmap` items (see :doc:`/rados/operations/upmap`).
- ``ceph osd getcrushmap`` returns a crush map version number on
stderr, and ``ceph osd setcrushmap [version]`` will only inject
an updated crush map if the version matches. This allows crush
these exist yet).
- ``ceph tell <daemon> help`` will now return a usage summary.
-.. _Read more about EC overwrites: ../rados/operations/erasure-code/#erasure-coding-with-overwrites
-.. _mClock QoS queueing algorithm: /rados/configuration/osd-config-ref#qos-based-on-mclock
-.. _simplified OSD replacement process: ../rados/operations/add-or-rm-osds/#replacing-an-osd
-
Major Changes from Jewel
------------------------