DATA RECOVERY OPERATIONS, SUCH AS RECOVERY FROM MODIFIED NETWORK DATA MANAGEMENT PROTOCOL DATA

摘要

The systems and methods herein permit storage systems to correctly perform data recovery, such as direct access recovery, of Network Data Management Protocol (“NDMP”) backup data that was modified prior to being stored in secondary storage media, such as tape. For example, as described in greater detail herein, the systems and methods may permit NDMP backup data to be encrypted, compressed, deduplicated, and/or otherwise modified prior to storage. The systems and methods herein also permit a user to perform a precautionary snapshot of the current state of data (e.g., primary data) prior to reverting data to a previous state using point-in-time data.

主权项

1. A tangible computer-readable storage medium whose contents cause a data storage system to perform an operation for recovering Network Data Management Protocol (“NDMP”) backup data, the operation comprising:
receiving a request for an unmodified version of NDMP data that was modified prior to being stored in secondary storage media, the request including a logical offset and a logical length; and, returning the requested unmodified version of NDMP data using the received logical offset and logical length.