APPARATUS AND METHOD FOR ACCESSING A NON-VOLATILE MEMORY BLADE USING MULTIPLE CONTROLLERS IN A NON-VOLATILE MEMORY BASED STORAGE DEVICE

摘要

Various systems, methods, apparatuses, and computer-readable media, for accessing a storage device are described. In certain example embodiments, an active/active fault tolerant storage device comprising two or more controllers may be implemented. In one embodiment, each controller may be coupled to the non-volatile memory’ (NVM) blades comprising the non-volatile memory (NVM) storage medium. In one example implementation, a standardized protocol, such as Peripheral Component Interconnect Express protocol may be used for communicating amongst the various components of the controller and also the NVM storage medium.

主权项

1. A storage device comprising:
a master controller configured to operate in active mode, the master controller configured to perform data write operations to a non-volatile memory (NVM) storage medium; a slave controller configured to operate in active mode; the master controller and the slave controller both configured to perform data read operations from the NVM storage medium; and a plurality of non-volatile memory (NVM) blades comprising the NVM storage medium, wherein at least one of the plurality of NVM blades is coupled to the master controller and the slave controller for writing and reading data to and from the NVM storage medium.