Memory operation upon failure of one of two paired memory devices

摘要

A method and apparatus for continued operation of a memory module, including a first and second memory device, when one of memory devices has failed. The method includes receiving a write operation request to write a data word, having first and second sections, by a first memory module. The memory module may have a first memory device and a second memory device, for respectively storing the first and second sections of the data word. A determination if one of the first and second memory devices is inoperable is made. If one of the first and second memory devices is inoperable, a write operation is performed by writing the first and second sections of the data word to the operable one of the first and second memory devices.

主权项

1. A method comprising:
receiving a write operation request to write a data word, having first and second sections, to a first memory module having a first memory device and a second memory device to store the sections of the data word; determining whether one of the first and second memory devices is inoperable; and performing the write operation if one of the first and second memory devices is inoperable by writing the first and second sections of the data word to the other of the first and second memory devices that is operable.