1. A method for execution by a computing device of a dispersed storage network (DSN), the method comprises: executing a rebuild function to produce a rebuilt encoded data slice for storage in a targeted storage unit of the DSN; when the targeted storage unit is currently unavailable: storing the rebuilt encoded data slice in local memory of the computing device; recording storage of the rebuilt encoded data slice in the local memory; and recording that the targeted storage unit is currently unavailable; and when the targeted storage unit is currently available: sending the rebuilt encoded data slice to the targeted storage unit; and recording storage of the rebuilt encoded data slice by the targeted storage unit.