DATA STORAGE AND VARIABLE LENGTH ERROR CORRECTION INFORMATION

摘要

A corresponding portion of storage (such as one or more storage cells) is assigned one of multiple different error correction modes depending on a respective ability of the corresponding portion of storage cells to store data without error. Groups of storage cells that are less prone to failures (i.e., loss of data) are assigned a first error correction mode in which a first length error correction code is used to generate error correction information for a given sized segment of data. Groups of storage cells that are more prone to failures are assigned a second error correction mode in which a second length error correction code is used to generate error correction information for the given sized segment of data.

主权项

1. A method comprising:
monitoring an error rate associated with a group of storage cells in a data storage system to store data; based on the error rate, selecting one of multiple different error correction modes in which to generate corresponding error correction information for storage of data in the group of storage cells; and assigning the selected error correction mode to the group of storage cells.