Caching rebuilt encoded data slices in a dispersed storage network

A computer readable storage medium comprises:

• at least one memory section that stores operational instructions that, when executed by one or more processing modules of one or more computing devices of a dispersed storage network (DSN), causes the one or more computing devices to:
• execute 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:
• store the rebuilt encoded data slice in local memory of the computing device;
• record storage of the rebuilt encoded data slice in the local memory;
• and
• record that the targeted storage unit is currently unavailable;
• and
• when the targeted storage unit is currently available:
• send the rebuilt encoded data slice to the targeted storage unit;
• and
• record storage of the rebuilt encoded data slice by the targeted storage unit.

A computing device of a dispersed storage network (DSN), the computing device comprises:

• an interface;
• a local memory;
• and
• a processing module operably coupled to the interface and the local memory, wherein the processing module functions to:
• execute 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:
• store the rebuilt encoded data slice in the local memory;
• record storage of the rebuilt encoded data slice in the local memory;
• and
• record that the targeted storage unit is currently unavailable;
• and
• when the targeted storage unit is currently available:
• send, via the interface, the rebuilt encoded data slice to the targeted storage unit;
• and
• record storage of the rebuilt encoded data slice by the targeted storage unit.