+``mds cache memory limit``
+
+:Description: The memory limit the MDS should enforce for its cache.
+ Administrators should use this instead of ``mds cache size``.
+:Type: 64-bit Integer Unsigned
+:Default: ``1073741824``
+
+``mds cache reservation``
+
+:Description: The cache reservation (memory or inodes) for the MDS cache to maintain.
+ Once the MDS begins dipping into its reservation, it will recall
+ client state until its cache size shrinks to restore the
+ reservation.
+:Type: Float
+:Default: ``0.05``