+.It Fl h Ar level
+Honor the user
+.Dq nodump
+flag
+.Dp Dv UF_NODUMP
+only for dumps at or above the given
+.Ar level .
+The default honor level is 1,
+so that incremental backups omit such files
+but full backups retain them.
+.It Fl I Ar nr errors
+By default,
+.Nm
+will ignore the first 32 read errors on the file
+system before asking for operator intervention. You can change this
+using this flag to any value. This is useful when running
+.Nm
+on an active filesystem where read errors simply indicate an
+inconsistency between the mapping and dumping passes.