Managing Namespaces Across Logical Groups in a Data Storage Array

A computer-implemented method, comprising:

• establishing, through a storage interface, communication between a host system and a plurality of data storage devices using a storage protocol, wherein each data storage device of the plurality of data storage devices comprises a non-volatile storage medium configured to allocate data units to at least one namespace;
• determining, for each data storage device of the plurality of data storage devices, a device set of data units in that data storage device, wherein the device set of data units are configured to be allocated across a plurality of logically separated groups by the storage protocol;
• determining a global identifier for at least one namespace in the plurality of data storage devices;
• assigning a namespace set of data units to the global identifier, wherein the namespace set of data units comprises data units from a plurality of logically separated groups;
• determining, for a target namespace of the at least one namespace for a host storage command, a corresponding global identifier;
• and
• send, based on the corresponding global identifier and through the storage interface, the host storage command targeting data units in the target namespace.

A system comprising:

• at least one processor;
• at least one memory;
• a storage interface configured for communication with a plurality of data storage devices using a storage protocol, wherein each data storage device of the plurality of data storage devices comprises a non-volatile storage medium configured to allocate data units to at least one namespace;
• means for determining, for each data storage device of the plurality of data storage devices, a device set of data units in that data storage device, wherein the device set of data units are configured to be allocated across a plurality of logically separated groups by the storage protocol;
• means for determining a global identifier for at least one namespace in the plurality of data storage devices;
• means for assigning a namespace set of data units to the global identifier, wherein the namespace set of data units comprises data units from a plurality of logically separated groups;
• means for determining, for a target namespace of the at least one namespace for a host storage command, a corresponding global identifier;
• and
• means for send, based on the corresponding global identifier and through the storage interface, the host storage command targeting data units in the target namespace.