Migration agent employing moveslice request

A migration agent, comprising:

• a processing module including a processor and associated memory;
• a decentralized agreement module coupled to the processing module;
• the processing module configured to:
• identify one or more data objects stored as sets of encoded data slices in a first storage pool of a distributed storage network (DSN) configured to store data objects as sets of encoded data slices in a plurality of distributed storage units organized into storage pools;
• determine, for each data object of the one or more data objects, whether to migrate corresponding sets of encoded data slices from the first storage pool to another storage pool;
• for at least one data object of the one or more data objects:
• determine to migrate a set of encoded data slices associated with the at least one data object from the first storage pool to another storage pool;
• issue a set of MoveSlice requests to storage units included in the first storage pool;
• receive, at the migration agent, MoveSlice responses from at least some storage units included in the first storage pool;
• and
• in response to receiving a threshold number of favorable MoveSlice responses, facilitate deletion of the corresponding sets of encoded data slices stored in the first storage pool.

A distributed storage network (DSN) comprising:

• a plurality of distributed storage task execution (DST EX) units organized as storage pools, each of the plurality of DST EX units including a plurality of distributed storage (DS) memories configured to store data objects as sets of encoded data slices;
• a migration agent coupled to the plurality of DST EX units via a communication network, the migration agent including:
• a processing module including a processor and associated memory;
• a decentralized agreement module coupled to the processing module;
• the processing module configured to:
• identify one or more data objects stored as sets of encoded data slices in a first storage pool;
• determine, for each data object of the one or more data objects, whether to migrate corresponding sets of encoded data slices from the first storage pool to another storage pool;
• for at least one data object of the one or more data objects:
• determine to migrate a set of encoded data slices associated with the at least one data object from the first storage pool to another storage pool;
• issue a set of MoveSlice requests to storage units included in the first storage pool;
• receive, at the migration agent, MoveSlice responses from at least some storage units included in the first storage pool;
• and
• in response to receiving a threshold number of favorable MoveSlice responses, facilitate deletion of the corresponding sets of encoded data slices stored in the first storage pool.