Patent ID: 9031913
Filing Date: 2015-05-12
Classification: G06F

Abstract:
1. A computer program product for use in replication comprising: a non-transitory computer readable medium encoded with computer executable program code for replication of data, the code configured to enable the execution of: intercepting an Input/Output (IO) for a file at an application layer at the production site at a splitter; determining at the splitter if the IO corresponds to a file that is being replicated including examining the IO for a file ID; and based on a determination the file is being replicated, sending the IO to a first data recovery appliance (DPA); recording the IO corresponding to the file in a journal; determining that the IO is a command to increase a file size; and determining if the increased data is known; and based on a negative determination, pausing replication and marking the unknown area in a delta marker stream and resuming replication and re-synchronizing the data.