STORAGE APPARATUS AND METHOD OF CONTROLLING STORAGE CONTROLLER
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United States of America
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Issued Date -
Nov 21, 2024
app pub date -
Sep 14, 2023
filing date -
Sep 14, 2023
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Abstract
A frontend interface of a controller according to the present invention includes a plurality of corresponding queueing interfaces for each processor of the controller, and an enqueueing destination of a host I/O command can be switched in response to an instruction from a processor. When a controller OS restarts, the controller waits for completion of a host I/O and executes controller blocking and restarting during setup. Therefore, to determine whether or not this process is possible, the processor gives an instruction to switch a queue and waits until a switch source queue is empty.
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