公开(公告)号：DE2907333A1

公开(公告)日：1979-09-27

申请号：DE2907333

申请日：1979-02-24

Applicant: IBM

Inventor： JONES DARRYL STANLEY ,  LARKIN DONALD WILLIAM ,  WERVE CARLETON EDWARD ,  TONER MICHAEL FRANCIS

IPC: G06F12/16 ,  G11C29/00 ,  G06F11/08 ,  G06F13/06

Abstract: Disclosed herein is a mechanism for use in a data processing system for recovering from errors detected when reading data from an array. At least two arrays, each of which may be a distinct portion of a single physical array, contain identical data. When data is written, it is written into both arrays. When data is read, it is read from one of the arrays. If an error is detected on readout, there will be a system retry and the other array will be accessed at the next read request. So long as no errors are detected, each successive read will be from the same array. An error detected on readout will cause the next read operation to access the other array.

公开(公告)号：DE2333046A1

公开(公告)日：1974-01-10

申请号：DE2333046

申请日：1973-06-29

Applicant: IBM

Inventor： HONG SE JUNE ,  JONES DARRYL STANLEY ,  OSTAPKO DANIEL LAWRENCE

IPC: G06F11/22 ,  G01R31/3183 ,  G06F11/16 ,  H03K19/003 ,  H03K13/32