A method for execution by a storage network begins by creating a plurality of vaults in memory addressable by the storage network, where a vault is a virtual memory block associated with a portion of storage network memory, and then determining dispersed storage error encoding parameters for each vault. The method then continues by creating a plurality of vault regions within each vault, wherein a vault region is configured to store a data type of a plurality of data types, where at least one data type of the plurality of data types is associated with a unique access restriction.