Method and system for facilitating a light-weight garbage collection with a reduced utilization of resources

A computer system, comprising:

• a processor;
• and
• a memory coupled to the processor and storing instructions which, when executed by the processor, cause the processor to perform a method, the method comprising:
• receiving, by a controller, a first request to read a first page of data stored in a first non-volatile memory unit in a storage device which comprises a plurality of non-volatile memory units;
• accumulating, by a calculation module of the first non-volatile memory unit, a syndrome associated with the first page of data to obtain a syndrome weight;
• and
• in response to determining that the syndrome weight is greater than a predetermined threshold and that a current number of retries is less than a predetermined number, wherein the current number of retries corresponds to a number of times that a retry process has been executed between the calculation module and a data flip engine of the controller:
• executing the retry process between the calculation module and a data flip engine of the controller to update the syndrome weight, wherein executing the retry process comprises accumulating, by the calculation module, the updated syndrome weight to obtain the syndrome weight;
• and
• incrementing the current number of retries.

An apparatus, comprising:

• a communication unit configured to receive, by a controller, a first request to read a first page of data stored in a first non-volatile memory unit in a storage device which comprises a plurality of non-volatile memory units;
• a syndrome-accumulating unit configured to accumulate a syndrome associated with the first page of data to obtain a syndrome weight;
• and
• a retry-managing unit configured to, in response to the syndrome-accumulating unit determining that the syndrome weight is greater than a predetermined threshold and in response to the retry-managing unit determining that a current number of retries is less than a predetermined number, wherein the current number of retries corresponds to a number of times that a retry process has been executed between the calculation module and a data flip engine of the controller:
• execute the retry process between the calculation module and a data flip engine of the controller to update the syndrome weight, wherein executing the retry process comprises accumulating, by the syndrome-accumulating unit, the updated syndrome weight to obtain the syndrome weight;
• and
• increment the current number of retries.