1. An apparatus, comprising: a nonvolatile solid state memory configured to store configuration data for a plurality of logical entities in a logically-partitioned computer, the plurality of logical entities including first and second logical entities having the same entity type among a plurality of entity types, the memory organized into a plurality of fixed size blocks, wherein the plurality of fixed size blocks includes at least one full block and at least one shared block linked to one another in a chain, the full block including configuration data for the first logical entity, and the shared block including configuration data for each of the first and second logical entities; and program code configured to access the configuration data for the first logical entity by accessing the nonvolatile solid state memory to retrieve configuration data stored in each of the full and shared blocks in the chain.