Abstract: Detecting and reconfiguring of boot parameters of a NVMe subsystem, including identifying a mapping between local boot parameters of a NVMe subsystem and a GUID that corresponds to the NVMe subsystem; determining that the NVMe subsystem has been reset; in response to determining that the NVMe subsystem has been reset: transmitting a discovery request to the NVMe subsystem for remote boot parameters of the NVMe subsystem; comparing the local boot parameters for the GUID with the remote boot parameters for the NVMe subsystem; determining, based on the comparing, that the remote boot parameters for the NVMe subsystem do not match with the local boot parameters for the GUID, and in response, updating values of the local boot parameters for the GUID based on the remote boot parameters of the NVMe subsystem.

Abstract: A method includes determining respective memory access counts of a plurality of blocks of non-volatile memory cells that are grouped into a plurality of respective groups, comparing the respective memory access counts to respective memory access thresholds, determining a respective memory access count of a block of non-volatile memory cells exceeds a respective memory access threshold, and performing a media scan operation on the block of non-volatile memory cells.

Abstract: A FTL table processing method for a solid state drive is provided. When the control circuit intends to perform the backup action on a FTL table, the control circuit calculates the size of a remaining space of a used block. Then, the control circuit judges whether the complete content of the FTL table is required to be backed up to the blank block. If the size of the remaining space of the used block is enough, the control circuit backs up the amended contents of the FTL table and a content changed table to the remaining space of the used block. Whereas, if the size of the remaining space of the used block is not enough, the control circuit backs up the complete content of the FTL table to a plurality of blank blocks.

Abstract: A control method is applied to a flash memory controller, which includes the following steps: creating a write time table, wherein the write time table records block numbers of blocks having data stored therein and corresponding first time and second time; referring to the write time table to determine whether there is at least one first block in the flash memory module whose first time is earlier than a first threshold, and if so, recording the at least one first block into an expired block table; referring to the write time table to determine whether there is at least one second block in the flash memory module whose second time is earlier than a second threshold, and if so, recording the at least one second block into the expired block table; and referring to the expired block table to perform an expired block recycling operation.

Abstract: Devices and techniques are disclosed herein for providing L2P information to a host device from a storage system, the L2P information comprising changed L2P region and associated subregion information, to-be-loaded L2P region and associated subregion information, and invalid L2P region and associated subregion information.

Abstract: A processing device includes a system tag data structure to store a system tag that includes a logical transfer unit (LTU) identifier corresponding to an LTU, which includes a subset of a plurality of sequential logical block addresses (LBAs) that includes an LBA of a read request, and a mapping data structure that maps a zone of LBA space to physical address space. Hardware logic is to: retrieve the LTU identifier from the system tag; determine a zone identifier (ID) based on the LTU identifier; index, using at least one of the zone ID or the LTU identifier, into the mapping data structure to retrieve metadata that specifies a mapping between the LTU identifier and a physical address of the physical address space; and store the metadata in the system tag data structure in association with the system tag.