| CPC G06F 11/1435 (2013.01) [G06F 2201/805 (2013.01)] | 19 Claims |
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1. A system comprising a storage device controller, the storage device controller including:
a first controller to:
read commands from a submission queue stored in a shared memory;
provide the commands to a second controller; and
write completion notices received from the second controller to a completion queue in the shared memory; and
the second controller to:
receive the commands from the first controller;
perform storage operations with a non-volatile memory responsively to receiving the commands;
generate the completion notices responsively to performing the storage operations,
provide the completion notices to the first controller;
write recovery data about the commands and the completion notices to a persistent memory; and
recover from a failure responsively to retrieving the recovery data from the persistent memory.
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