Cnex Labs, Inc.

Shanying Luo

Jun Tao

Chih-Chieng Cheng

Bo Jiang

A storage system includes: a control processor, configured to: read user data with a read threshold, determine which threshold adjustment range has been activated by reading a 1 and 0 counter, select an adjusted read threshold, based on the threshold adjustment range, to reread the user data in a physical block using the adjusted read threshold to correct the user data; and reading the user data in the physical block using the adjusted read threshold selected from the threshold adjustment range.

Storage system with predictive adjustment mechanism and method of operation thereof

A storage system includes: a control processor, configured to: read user data with a read threshold, detect an uncorrectable error in the user data, detect a sector balanced when the number of 1's and 0's in the user data is within the difference stored in a range register, apply an XOR RAID recovery to correct the uncorrectable error in the user data; and a non-volatile memory array, coupled to the control processor, configured to store the user data; and wherein the control processor is further configured to forego an additional read of a sector N with a different value of the read threshold when the sector balanced initiates the XOR RAID recovery.

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Fremont, CA, United States of America

Shanying Luo