Disk Access Method and Host
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United States of America Patent
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Issued Date -
Sep 26, 2019
app pub date -
Jun 13, 2019
filing date -
Dec 14, 2016
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Abstract
A disk access method is provided. The method includes: generating an input/output IO request, where the IO request carries a logical unit number LUN and a virtual address of to-be-accessed data; finding, based on the LUN, an LU to be accessed, and determining, based on the virtual address, a virtual address space into which the virtual address falls; determining, based on the determined virtual address space, an access path corresponding to the virtual address space (S230); and delivering, along the access path, the IO request to a controller pointed by the access path.
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