Patent ID: 9639423
Date: 2017-05-02
CPC Classifications: G06F,G11C

Claim:
1. A system comprising: a first memory configured to store a first lookup table with first metadata, wherein the first metadata includes a first mapping between logical addresses and physical addresses, and wherein the first metadata is susceptible to being lost due to an unexpected power down event; a second memory configured to store (i) a second lookup table with second metadata, and (ii) an event log, wherein the second metadata includes a second mapping between the logical addresses and the physical addresses, wherein the event log comprises a plurality of entries, wherein the second memory is configured to store in the event log each of the plurality of entries, such that each of the plurality of entries indicates an updated association between a respective one of the logical addresses and a corresponding one of the physical addresses as included in the first metadata prior to the unexpected power down event; and a control module configured to