IMAGE LEVEL COPY OR RESTORE, SUCH AS IMAGE LEVEL RESTORE WITHOUT KNOWLEDGE OF DATA OBJECT METADATA

摘要

A system and method for performing an image level restore of data is described. In some examples, the system receives a request to restore a file and transmits the request to an intermediate component. The intermediate component may then retrieve a directory file from an image of a secondary copy of a data set, identify a location of the file from the directory file, and provide the location to the requestor.

主权项

1. At least one non-transitory, computer-readable medium storing instructions, which when executed by at least one data processor, restores an individual file from a snapshot of a primary copy of a data set, comprising:
transmitting from a file system to an intermediate component a request for a directory file that contains information associated with files imaged by the snapshot,
wherein the directory file includes—
information identifying the files imaged by the snapshot, andinformation identifying locations of the files imaged by the snapshot in a secondary copy stored in a storage device; redirecting the request for the directory file from the intermediate component to the storage device, storing the received directory file in a cache associated with the intermediate component; transferring location information for the file from the intermediate component to the file system,
wherein the location information is obtained from the directory file.