Pure Storage, Inc.
Optimized Selection of Participants in Distributed Data Rebuild/Verification

Abstract:

A storage network method begins by receiving a data retrieval request, wherein a data object is segmented into a plurality of data segments, determining a storage configuration associated with the data retrieval request based on an encoded data slice identifier included in the retrieval request and, based on the storage configuration, determining a plurality of storage resources associated with the encoded data slice identifier The mehod continues by determining an estimated performance level for each storage resource of a plurality of storage resources associated with the encoded data slice identifier, determining an expected retrieval performance for the retrieval request and selecting a storage resource of the plurality of storage resources based on the expected retrieval performance. The method then continues by transmitting a read request for one or more encoded data slices associated with the encoded data slice identifier to the storage resource.