CPU implemented method for backing up modified data sets in non-

Details CPU implemented method for backing up modified data sets in non- CPU implemented method for backing up modified data sets in non-

1989-07-25

1995-09-26

Robertson, David L.

Boots, shoes, and leggings

364DIG1, 364268, 364285, 39518218, 395489, G06F 1216

Patent

active

054540992

ABSTRACT:
A CPU implemented method for managing the backup copying of data sets residing in non-volatile storage and for the recovery thereof in the event of CPU failure. The first step is to invoke a modified incremental backup copy policy using a small backup window and less data than that heretofore used in full, incremental or mixed policies. That is, a backup copy is made to a first designated part of non-volatile storage of only those data sets in a storage group satisfying a pair of adjustable parameters relating the last backup date, the last update, and the current date. The second step occurs during a recovery cycle in the event of CPU failure wherein the backed up datasets are copied from said first designated part into a second designated part of non-volatile storage.

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