| CPC G06F 12/0804 (2013.01) [G06F 2212/601 (2013.01)] | 20 Claims |
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1. An operation method for a memory system, the operation method comprising:
receiving a first data in a first cache of a first memory from a processor;
reading the first data from the first cache of the first memory and writing the first data as a redo log into a log buffer of the first memory, wherein the first data and the redo log are the same;
writing the redo log from the log buffer into a memory controller of the processor;
performing an in-memory copy in a second memory to copy a second data as an undo log, wherein the second data is an old version of the first data; and
writing the redo log from the memory controller into the second memory for covering the second data by the redo log as a third data, wherein the redo log, the third data and the first data are the same, and the memory controller and the second memory have persistence.
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