Patent ID: 8176276
Filing Date: 2012-05-08
Classification: G06F

Abstract:
1. A computer implemented method for capturing file operations applied to a data set comprising: recording one or more file operations having a corresponding time sequence and which modify said data set, wherein said recording of each of said file operations is performed by a mirroring driver when said mirroring driver receives a successful completion return status for a request to perform said each file operation, said request issued using a call chain, said mirroring driver included in the call chain above a file system, said successful completion return status being received by the mirroring driver when returning up the call chain after completion of said each file operation; receiving a request for a copy of the data set in a consistent state; determining at which point in said corresponding time sequence said data set is in a consistent state as a result of applying a portion of said file operations; and marking said point in said corresponding time sequence at which said data set is in a consistent state.