Reducing memory and/or storage requirements of a repository in a resource variable value save and retrieve operation implemented in computer hardware and/or software is accomplished by minimizing the number of repository entries saved by creating and saving repository entries only for resource variables that have non-normal values, and by discarding repository entries when the values of the resource variables corresponding to those entries have returned to the normal value. The number of repository entries, at any point in time, is equal to the count of resource variables known to have non-normal values. Each repository entry includes a resource variable identifier and the value of the resource variable.
