DATA BACKUP METHOD, DATA BACKUP DEVICE, AND INFORMATION RECORDING MEDIUM

DATA BACKUP METHOD, DATA BACKUP DEVICE, AND INFORMATION RECORDING MEDIUM

PROBLEM TO BE SOLVED: To shorten the needed time of a restoring process through data backup operation which saves difference data in time series. SOLUTION: In addition to a backup medium stored with all file backups 53 obtained in time series from a volume 48 to be backed up and difference file back...

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Hauptverfasser: KURINO KIYOMICHI, SAKAKAWA KENICHI
Format: Patent
Sprache:eng
Schlagworte:
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
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creator KURINO KIYOMICHI
SAKAKAWA KENICHI
description PROBLEM TO BE SOLVED: To shorten the needed time of a restoring process through data backup operation which saves difference data in time series. SOLUTION: In addition to a backup medium stored with all file backups 53 obtained in time series from a volume 48 to be backed up and difference file backups 54 to 59, this device is equipped with a restore dedicated medium 52 and restores all files on the restore dedicated medium 52 at an arbitrary opportunity such as a free time of the backup by using all file backups 53 and difference file backups 54 to 59 obtained so far to structure a restore dedicated medium file 60; if the volume 48 makes a request to restore all the files is generated owing to a fault, etc., a restored file volume 49 is structured by taking a nonrepetitive pure data copy from the restore dedicated medium 52 to the structured restore dedicated medium file 60.
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subjects CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
title DATA BACKUP METHOD, DATA BACKUP DEVICE, AND INFORMATION RECORDING MEDIUM
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