===============
Cache Tiering
===============
+
.. warning:: Cache tiering has been deprecated in the Reef release as it
has lacked a maintainer for a very long time. This does not mean
it will be certainly removed, but we may choose to remove it
without much further notice.
-.. note:: Cache tiering is deprecated in Reef.
-
A cache tier provides Ceph Clients with better I/O performance for a subset of
the data stored in a backing storage tier. Cache tiering involves creating a
pool of relatively fast/expensive storage devices (e.g., solid state drives)