:Type: 32-bit Int
:Default: ``1``
+``osd scrub begin hour``
+
+:Description: The time of day for the lower bound when a scheduled scrub can be
+ performed.
+:Type: Integer in the range of 0 to 24
+:Default: ``0``
+
+
+``osd scrub end hour``
+
+:Description: The time of day for the upper bound when a scheduled scrub can be
+ performed. Along with ``osd scrub begin hour``, they define a time
+ window, in which the scrubs can happen. But a scrub will be performed
+ no matter the time window allows or not, as long as the placement
+ group's scrub interval exceeds ``osd scrub max interval``.
+:Type: Integer in the range of 0 to 24
+:Default: ``24``
``osd scrub thread timeout``
:Default: Once per week. ``60*60*24*7``
+``osd scrub interval randomize ratio``
+
+:Description: Add a random delay to ``osd scrub min interval`` when scheduling
+ the next scrub job for a placement group. The delay is a random
+ value less than ``osd scrub min interval`` \*
+ ``osd scrub interval randomized ratio``. So the default setting
+ practically randomly spreads the scrubs out in the allowed time
+ window of ``[1, 1.5]`` \* ``osd scrub min interval``.
+:Type: Float
+:Default: ``0.5``
+
``osd deep scrub stride``
:Description: Read size when doing a deep scrub.