STORAGE APPARATUS AND CONTROL METHOD FOR STORAGE APPARATUS
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United States of America
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Issued Date -
Dec 26, 2024
app pub date -
Mar 8, 2024
filing date -
Mar 8, 2024
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Abstract
A storage apparatus includes a first controller having a first memory, a second controller having a second memory, and a memory module having a third memory. The first memory stores drive control information including a correspondence between a logical address and a physical address, first cache data in a data input-output (I/O) process, and first cache control information including a correspondence between a logical address and a cache address of the first cache data. The second memory stores drive control information, second cache data in the data I/O process, and second cache control information including a correspondence between a logical address and a cache address of the second cache data. The third memory stores first cache data provided with redundancy and second cache data provided with redundancy.
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