Electrical computers and digital processing systems: memory – Storage accessing and control – Control technique
Patent
1996-11-08
1998-11-10
Swann, Tod R.
Electrical computers and digital processing systems: memory
Storage accessing and control
Control technique
711162, G06F 1216
Patent
active
058359532
ABSTRACT:
A system and method for maintaining logically consistent backups using minimal data transfer are presented. A system comprises a backup system having a backup storage device and one or more primary systems having mass storage devices that are to be backed up on the backup storage device. The primary systems identify changes that are going to be made to the mass storage device. The combined effected locations in the mass storage device of these identified changes are then captured in a static snapshot when the mass storage device is in a logically consistent state. Only those data blocks changed since the last backup are then transferred to backup system. The backup system can then store these changes or apply the changes to the backup storage device in order to bring the backup storage device current to a particular point in time.
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Dinman, S. B.,
Lee Felix B.
Swann Tod R.
Vinca Corporation
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