+option "min-free-mb" m
+#~~~~~~~~~~~~~~~~~~~~~
+"Minimal amount of free disk space"
+int typestr="megabytes"
+default="100"
+optional
+details="
+ If disk space on the file system containing the destination
+ directory gets low, \"dss --run\" will suspend the currently
+ running rsync process and will start to remove snapshots in
+ order to free disk space. This option specifies the minimal
+ amount of free disk space. If less than the given number of
+ megabytes is available, snapshots are being deleted. See also
+ the --min_free_percent and the min-free-percent-inodes options.
+
+ A value of zero deactivates this check.
+"
+
+option "min-free-percent" p
+#~~~~~~~~~~~~~~~~~~~~~~~~~~
+"Minimal percent of free disk space"
+int typestr="percent"
+default="2"
+optional
+details="
+ See --min-free-mb. Note that it is not recommended to set both
+ --min-free-mb and --min-free-percent to zero as this will
+ cause your file system to fill up quickly.
+"
+option "min-free-percent-inodes" i
+#~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+"Minimal percent of free inodes"
+int typestr="percent"
+default="0"
+optional
+details="
+ Specify the minimum amount of free inodes on the file system
+ containing the destination dir. If less than that many inodes
+ are free, snapshot removal kicks in just as in case of low
+ disk space.