US 2016/0110248 A1 · STORAGE ARRAY MANAGEMENT EMPLOYING A MERGED BACKGROUND MANAGEMENT PROCESS

Abstract

In at least one embodiment, a controller of a non-volatile memory array iteratively performs a merged background management process independently of any host system's demand requests targeting the memory array. During an iteration of the merged background management process, the controller performs a read sweep by reading data from each of a plurality of page groups within the memory array and recording page group error statistics regarding errors detected by the reading for each page group, where each page group is formed of a respective set of one or more physical pages of storage in the memory array. During the iteration of the merged background management process, the controller employs the page group error statistics recorded during the read sweep in another background management function.

Claims22

Dependent claims

A method in a data storage system including a non-volatile memory array controlled by a controller, the method comprising:

the controller iteratively performing a merged background management process;
during an iteration of the merged background management process, the controller performing a read sweep by reading data from each of a plurality of page groups within the memory array and recording page group error statistics regarding errors detected by the reading for each page group, wherein each page group is formed of a respective set of one or more physical pages of storage in the memory array;
and
during the iteration of the merged background management process, the controller employing the page group error statistics recorded during the read sweep in another background management function.

1 more element

Dependencies are inferred from the claim text.

Storage array management employing a merged background management process

Life of this patent

Storage array management employing a merged background management process

Life of this patent

Abstract

Claims22