Browse Prior Art Database

Data Scrubbing Using LSSD Features during Primary Power Outage

IP.com Disclosure Number: IPCOM000059043D
Original Publication Date: 1988-Apr-01
Included in the Prior Art Database: 2005-Feb-15

Publishing Venue

IBM

Related People

Authors:
Barbash, WA Blake, RM [+details]

Abstract

This disclosure describes a method of protecting data stored in a memory system during power outages. The scrubbing operation is transferred from the contemporary memory controller to a single CMOS chip which provides the control logic for the scrubbing operation as well as the error detection and error correction functions. These operations protect the data from the development of uncorrectable errors until main power has been restored. The CMOS chip logic would be implemented as a low power, low performance ECC network using the Level Sensitive Scan Design ring features of the support logic.