EFFICIENT BACKUP, SEARCH AND RESTORE

摘要

A backup, search, and restore service is provided. The service can be achieved through a backup system, and a search and restore server. A user can be enabled to initiate a search request for one or more data items. A search can be performed by the search and restore server using metadata for the data items backed up by the backup system to return the one or more data items. The metadata for the data items can be generated by the backup system when data items are backed up by the backup system. The backup system may back up the data items on an incremental basis. The user can be enabled to select a data item in the one or more data items for restoration on the data system. Header information of the selected data item can be obtained from the data system to determine whether the restoration is necessary.

主权项

1. A method of using a server for restoring data items to a data system from a backup system, the method being performed by the server and comprising:
receiving, over a network from the data system; metadata information for each of a plurality of data items; storing the metadata information in a memory of the server; providing, over the network to a client computer, a user interface that enables a user to specify one or more criteria for initiating a request to search the metadata information for one or more matching data items; performing a search of the metadata information to identify the one or more matching items that match the one or more criteria, thereby obtaining a result set including a first data item; providing first metadata regarding the first data item to the client computer for presentation to the user; receiving, from the client computer, a restoration request indicating to restore the first data item to the data system; in response to the restoration request, obtaining; from the data system, first header information for the first data item; comparing first metadata information regarding the first data item to the first header information; determine whether a version of the first data item needs to be restored from the backup system onto the data system based on a result of the comparison of the first metadata information regarding the first data item to the first header information; and when the version of the first data item is determined to be restored on the data system, sending an instruction to the backup system to effectuate restoration of the version of the first data item on the data system.