Data file directories and methods

Details Data file directories and methods Data file directories and methods

G - Physics

11

B

G11B 20/12 (2006.01) G11B 20/18 (2006.01) G11C 29/00 (2006.01) G06F 11/08 (2006.01)

Patent

CA 2045948

A data storage medium having the ability to recover from media errors includes a directory located at any desired region of a data storage area with redundant directory pointers at reserved locations. A unique file token is included in the directory entry for each data file and is also included in each extent list where the locations of parts of a fragmented data file are stored. Multiple extent lists are chained in two directions to facilitate reconstruction of the chain if part of the pointer information is lost.

L'invention est un support de stockage de données pouvant se restaurer après une erreur. Le support de l'invention comprend un répertoire se trouvant dans une zone désirée quelconque d'une mémoire avec des pointeurs redondants à des emplacements réservés. Un jeton de fichier particulier est inclus dans le répertoire pour chaque fichier de données et est également inclus dans chaque liste de domaines où les emplacements des parties d'un fichier de données fragmenté sont stockés. De multiples listes de domaines sont chaînées dans deux directions pour faciliter la reconstruction de la chaîne si une partie de l'information de pointage est perdue.

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