19014020. Random Storage Access and Data Erasure for Improved Performance and Reduced Write Amplification (Micron Technology, Inc.)
Random Storage Access and Data Erasure for Improved Performance and Reduced Write Amplification
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Random Storage Access and Data Erasure for Improved Performance and Reduced Write Amplification
This abstract first appeared for US patent application 19014020 titled 'Random Storage Access and Data Erasure for Improved Performance and Reduced Write Amplification
Original Abstract Submitted
A host system to query, during booting up of the host system, a superblock size in a connected memory sub-system. The host system can place write requests into separate streams and send the streams to the memory sub-system to store data of the write requests into separate sets of superblocks for the streams respectively. The host system can allocate, a plurality of log buffers for the streams respectively and record, into the log buffers, sequences of logical addresses as in the streams respectively. The host system can trim a stream, among the plurality of streams, by issuing commands to the memory sub-system to erase, according to the superblock size, an amount of data from a portion of a sequence of logical addresses recorded in a log buffer for the stream, causing the memory sub-system to free at least one superblock.
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