Abstract: A method begins by a processing module of a dispersed storage network (DSN) determining a fault domain for a portion of the DSN and generating a local redundancy for the fault domain. The method continues with the processing module identifying storage locations available for storing the first local redundancy, selecting storage locations for storing the first local redundancy and continues with the processing module facilitating storage of the local redundancy in the storage locations. Upon detecting a storage failure in the DSN, the method continues with the processing module determining whether the storage failure is associated with the fault domain and in response determining whether the first local redundancy is associated with the first fault domain. In response to determining that the local redundancy is associated with the first fault domain the method continues with the processing module recovering the local redundancy and correcting the storage failure.

Abstract: A method includes determining, by a computing device of a dispersed storage network (DSN), a source name for a data object to be scanned for missing encoded data slices. The method further includes issuing list source requests to the set of storage units. When a list source response is not received from a storage unit of the set of storage units within a response timeframe, the method further includes identifying one or more encoded data slices stored on the storage unit as potentially missing encoded data slices; determining a next level missing encoded data slice determination approach for the storage unit based on one or more of: a number of potentially missing encoded data slices, a performance goal, a network loading level, a rebuilding loading level, a predetermination, and an entry of a system registry; and executing the next level missing encoded data slice determination approach.

Abstract: A method for execution by one or more processing modules of one or more computing devices of a dispersed storage network (DSN), the method begins by generating a dispersed storage (DS) unit access request based on a DSN address, identifying a target DS unit based on the DSN address, outputting the DS unit access request to the target DS unit, identifying a DSN address range associated with the target DS unit in accordance with a storage map when receiving an access response addressing error. The method continues by issuing a range owner request to the target DS unit that includes the identified DSN address range associated with the target DS unit and updating the storage map based on received range owner response.

Abstract: A method for execution by a dispersed storage and task (DST) execution unit includes identifying a plurality of pending operations. A resource availability level to support execution of at least one of the plurality of pending operations is determined, and a required resource level to execute the at least one of the plurality of pending operations is determined. A balance factor between at least two types of the plurality of pending operations is determined based on the resource availability level and the required resource level. Determination of required timing of the execution of the at least one of the plurality of pending operations is coordinated with at least one other DST execution unit. An operation execution schedule is updated based on the required resource levels, the resource availability level, the balance factor, and the required timing of the execution.

Abstract: The present invention relates to the treatment of an impaired human immune response or to reduction of the severity of degradation of the human immune response by the administration of arginine or ornithine, or a functional analog of arginine or ornithine, or mixtures thereof, to humans suffering from an impaired immune response or at risk of suffering an impaired immune response. Such treatment is provided by enterally administering compositions supplemented with arginine or ornithine, or functional analogs of arginine or ornithine, or parenterally administering amino acid solutions supplemented with arginine or ornithine, or functional analogs of arginine or ornithine, to the patient.