公开(公告)号：US12019558B2

公开(公告)日：2024-06-25

申请号：US17122152

申请日：2020-12-15

Applicant: Intel Corporation

Inventor： Suresh Nagarajan ,  Scott Crippin ,  Sahar Khalili ,  Shankar Natarajan ,  Romesh Trivedi

IPC: G06F12/10 ,  G06F12/1009 ,  G11C16/04

CPC classification number: G06F12/1009 ,  G06F2212/657 ,  G11C16/0483

Abstract: A solid state drive with a Logical To Physical (L2P) indirection table stored in a persistent memory is provided. The L2P indirection table has a plurality of entries, each entry to store a physical block address in the block addressable memory assigned to a logical block address. The solid state drive including solid state drive controller circuitry communicatively coupled to the persistent memory and the block addressable memory. The solid state drive controller circuitry including a volatile memory to store a logical to physical address indirection table cache and circuitry to monitor the logical to physical address indirection table cache and to write dirty logical to physical entries in the logical to physical address indirection table cache to the logical to physical address indirection table in the persistent memory.