Patent attributes
A hybrid mapped redundant array of independent nodes (mapped RAIN) for data storage is disclosed. A hybrid mapped RAIN cluster can be allocated on top of one or more real data clusters comprising storage devices of different storage device types. Mapping of data storage locations in a hybrid mapped RAIN cluster can facilitate use of a real cluster at a different granularity than conventionally administered in a real cluster of storage locations, can enable selectable use of the different storage device types based on attributes attributed to the storage device types, how data will be stored, customer agreements, etc. Data storage schema associated with the storage device types can result in constraints on allocating storage devices of the different storage device types in a hybrid mapped RAIN cluster to forestall possible data loss events. A hybrid mapped RAIN cluster based on storage device types can enable tiered mapped storage.