G - Physics – 06 – F
Patent
G - Physics
06
F
354/233
G06F 15/16 (2006.01) G06F 11/14 (2006.01) G06F 17/30 (2006.01)
Patent
CA 1273116
ABSTRACT OF THE DISCLOSURE According to the present invention, a file recovery system is provided in which the commands for recovering files such as a historical file are unneces- sitated and the recovery system configuration is independent of the host processing system. That is, since the equip- ment for achieving a file recovery does not have an information about the location of the recovery data, an information about the content of a file to be recovered is transmitted to a transmission line. The other equip- ments asynchronously receive the information and judges whether or not a file containing the same file exists in the own system. If the file exists, the content of the file is transmitted to the transmission line. The equip- ment achieving the file recovery asynchronously receives from the transmission line the file data of files such as a historical file and establishes data consistency by use of the buffered current data and the event number, thereby recovering files such as a historical file.
521622
Kasashima Hirokazu
Kawakami Setsuo
Kawano Katsumi
Koizumi Minoru
Mori Kinji
Hitachi Ltd.
Kirby Eades Gale Baker
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