Abstract: A failure detection and correction module (FDCM) uses statistical measurement to detect failures in a distributed computing system caused by hardware, software, workflow, deployment, environmental factors, etc. in a component of the computing system, the computing system, or multiple computing systems and produces corrective actions. The FDCM identifies issues from various components, correlates the estimated failures in each level of components and rolls up failures and estimated failures from each level of components to system level estimations of failures, reevaluates the system reliability factors, readjusts the system reliability and system functions from the adjusted reliability factors, and produces intelligent corrective actions to improve both system reliability and the system efficiency. Corrective action includes changing slice storing parameters and rebuild priorities on a dispersed storage system.

Abstract: A failure detection and correction module (FDCM) uses statistical measurement to detect failures in a distributed computing system caused by hardware, software, workflow, deployment, environmental factors, etc. in a component of the computing system, the computing system, or multiple computing systems and produces corrective actions. The FDCM identifies issues from various components, correlates the estimated failures in each level of components and rolls up failures and estimated failures from each level of components to system level estimations of failures, reevaluates the system reliability factors, readjusts the system reliability and system functions from the adjusted reliability factors, and produces intelligent corrective actions to improve both system reliability and the system efficiency. Corrective action includes changing slice storing parameters and rebuild priorities on a dispersed storage system.

Abstract: A method begins by a requesting entity sending a normal data segment access request to first and second groups of storage units of a dispersed storage network. The method continues with the requesting entity sending a group failure data segment access request to the first group of storage units when the second group of storage units has less than a decode threshold number of encoded data slices of a set of encoded data slices available. When the second group of storage units has reestablished that the at least the decode threshold number of encoded data slices is available, the method continues with the requesting entity sending a re-integration data segment write request to the first and second groups of storage units and sending a re-integration data segment read request to the first group of storage units.

Abstract: A method includes identifying a plurality of DST client modules affiliated with data for storage in the DST network. A corresponding subset of a plurality of DST execution units are identified for each of the plurality of DST client modules. The data is encoded into a plurality of slices based on at least one dispersal parameter, the number of the plurality of slices corresponding to a number of the plurality of DST execution units included in a superset formed from the union of each subset of a plurality of DST execution units corresponding to each of the plurality of DST client modules. The plurality of slices are sent for storage in the superset formed from the union of each subset of a plurality of DST execution units.

Abstract: A method begins by a requesting entity sending a normal data segment access request to first and second groups of storage units of a dispersed storage network. The method continues with the requesting entity sending a group failure data segment access request to the first group of storage units when the second group of storage units has less than a decode threshold number of encoded data slices of a set of encoded data slices available. When the second group of storage units has reestablished that the at least the decode threshold number of encoded data slices is available, the method continues with the requesting entity sending a re-integration data segment write request to the first and second groups of storage units and sending a re-integration data segment read request to the first group of storage units.

Abstract: A method includes identifying a plurality of DST client modules affiliated with data for storage in the DST network. A corresponding subset of a plurality of DST execution units are identified for each of the plurality of DST client modules. The data is encoded into a plurality of slices based on at least one dispersal parameter, the number of the plurality of slices corresponding to a number of the plurality of DST execution units included in a superset formed from the union of each subset of a plurality of DST execution units corresponding to each of the plurality of DST client modules. The plurality of slices are sent for storage in the superset formed from the union of each subset of a plurality of DST execution units.