Patent ID: 6460054
Filing Date: 2002-10-01
Classification: G06F,Y10S

Abstract:
A system for updating a respective archive bit associated with each of the files residing in a read-write snapshot container of a copy-on-write arrangement with respect to a respective archive bit associated with each of the counterpart files thereto residing on a snapshotted container, the snapshotted container being associated with an original read-write container, in which the snapshotted container is substituted for the original read-write container for access by a user during the copy-on-write procedure, the system comprising:means for identifying snapshot container files each having a respective archive bit indicating a backup thereof having occurred; means for checking counterpart snapshotted container files with respect to the snapshot container files; means for comparing file data parameters of the snapshot container files with respect to file data parameters of the snapshotted container files; and means, responsive to the means for comparing, for changing the respective archive bit to be an archive bit indicating a backup for files in which the file data parameters of the snapshot container file are unchanged with respect to the file data parameters of the snapshotted container files.