Recording file events in change logs while incrementally backing up file systems
AssigneeEMC IP Holding Company LLC
InventorKedar S. Patwardhan
Life of this patent
Estimating the term…
Abstract
Recording file events in change logs while incrementally backing up file systems is described. A system begins incrementally backing up a file system by reading a current change log. The system identifies a file event associated with the file system while incrementally backing up the file system. The system identifies a unique identifier associated with the file event. The system determines whether the unique identifier associated with the file event is greater than a unique identifier offset associated with reading the current change log. The system records the file event in the current change log in response to a determination that the unique identifier associated with the file event is greater than the unique identifier associated with reading the current change log.
Claims20
A system for recording file events in change logs while incrementally backing up file systems, the system comprising:
- a processor-based application, which executed on a computer, will cause the processor to:
- back up a file system incrementally by reading a current change log;
- identify a file event associated with the file system, the file event occurring during the incremental back up of the file system;
- identify a unique identifier associated with the identified file event;
- determine whether the unique identifier associated with the file event is greater than a unique identifier associated with reading the current change log;
- and
- record the file event in the current change log during the incremental backup of the file system in response to a determination that the unique identifier associated with the file event is greater than the unique identifier associated with reading the current change log.
A computer-implemented method for recording file events in change logs while incrementally backing up file systems, the method comprising:
- backing up a file system incrementally by reading a current change log;
- identifying a file event associated with the file system, the file event occurring during the incremental back up of the file system;
- identifying a unique identifier associated with the identified file event;
- determining whether the unique identifier associated with the file event is greater than a unique identifier associated with reading the current change log;
- and
- recording the file event in the current change log during the incremental backup of the file system in response to a determination that the unique identifier associated with the file event is greater than the unique identifier associated with reading the current change log.
A computer program product, comprising a non-transitory computer-readable medium having a computer-readable program code embodied therein to be executed by one or more processors, the program code including instructions to:
- back up a file system incrementally by reading a current change log;
- identify a file event associated with the file system, the file event occurring during the incremental back up of the file system;
- identify a unique identifier associated with the identified file event;
- determine whether the unique identifier associated with the file event is greater than a unique identifier associated with reading the current change log;
- and
- record the file event in the current change log during the incremental backup of the file system in response to a determination that the unique identifier associated with the file event is greater than the unique identifier associated with reading the current change log.
Dependencies are inferred from the claim text.