1. A method for execution by one or more processing modules of one or more computing devices of a dispersed storage network (DSN), the method comprises: maintaining, over time, a continuum of time-to-repair information regarding a plurality of storage units of the DSN; maintaining, over time, a continuum of time-to-failure information regarding the plurality of storage units; and when the continuum of time-to-repair information and the continuum of time-to-failure information are each below undesired levels: changing dispersed storage error encoding parameters of a logical storage vault of the DSN by lowering a decode threshold number with respect to a current decode threshold number and increasing a pillar width number with respect to a current pillar width number; and re-encoding stored encoded data of the logical storage vault based on the increased pillar width number and the decreased decode threshold number.