Secure multiple server access to a non-volatile storage device

A method comprising:

• configuring each port of a solid-state storage device with three or more ports, the solid-state storage device comprising solid-state non-volatile memory in a housing and the solid-state storage device uses a Non-Volatile Memory Express (“NVME”) protocol, each port comprising a single lane, wherein each lane communicates using a Peripheral Component Interconnect Express (“PCIe”) protocol, wherein each port configured to connect directly to a different server of a plurality of servers over the lane of the port free of an intervening network communication fabric;
• controlling, via a plurality of storage controllers in the housing of the solid-state storage device, that are each associated with a different port of the three or more ports, storage to non-volatile storage of the solid-state storage device, wherein the plurality of storage controllers and the non-volatile storage are disposed within a same housing of the solid-state storage device;
• and
• assigning a logical namespace to each port and associated lane, each logical namespace assigned to a portion of the non-volatile storage of the solid-state storage device, wherein the logical namespace of a first port of the three or more ports and the associated lane of the first port is inaccessible to a second port of the three or more ports and the associated lane of the second port.

A solid-state storage device comprising:

• solid-state non-volatile storage in a housing of the solid-state storage device;
• three or more ports at an interface to the housing, each port comprising a single lane, each lane communicating using a Peripheral Component Interconnect Express (“PCIe”) protocol, each port configured to connect directly to a different server of a plurality of servers over the lane of the port free of an intervening network communication fabric;
• a plurality of storage controllers in the housing of the solid-state storage device, each storage controller of the plurality of storage controllers associated with a different port of the three or more ports, the plurality of storage controllers in a housing of the solid-state storage device, each storage controller controlling storage to non-volatile storage within the housing of the solid-state storage device;
• and
• a logical namespace assigned to each port and associated lane, each logical namespace assigned to a portion of the non-volatile storage of the solid-state storage device in the housing, wherein the logical namespace of a first port of the three or more ports and the associated lane of the first port is inaccessible to a second port of the three or more ports and the associated lane of the second port, and
• wherein the solid-state storage device uses a Non-Volatile Memory Express (“NVMe”) protocol.