# US 11,442,819 B2 · Specialized metadata for managing and searching backup data stored on a cloud-based object storage > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,442,819 B2 - Document ID: US11442819B2 - Status: Granted - Kind: B2 - Application number: 17/150,199 - Filed: 2021-01-15 - Published: 2022-07-21 - Granted: 2022-09-13 - Earliest claimed: 2021-01-15 - Assignees: EMC IP Holding Company LLC - Applicants: EMC IP Holding Company LLC - Inventors: Shelesh Chopra; Sunil Yadav; Amarendra Behera; Ravi Vijayakumar Chitloor; Himanshu Arora; Tushar Dethe; Jigar Bhanushali; Deependra Singh; Prabhat Kumar Dubey - Web page: https://patentgrep.com/patent/US11442819B2 ## CPC - G06F 11/1448: {Management of the data involved in backup or backup restore} - G06F 11/1464: {for networked environments} - G06F 11/1469: {Backup restoration techniques} - G06F 2201/84: Using snapshots, i.e. a logical point-in-time copy of the data - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) ## Abstract Described is a system (and method) for managing specialized metadata that may be used to manage and search incremental backup data stored on a cloud-based object storage. The system may create and store such metadata as part of a specialized metadata database that includes a data catalog and a backup catalog. The system may leverage the metadata database to initiate operations to efficiently manage incremental backup data stored on the object storage. For example, the metadata may be relied upon to efficiently reconstruct (e.g. synthetically) the client data to a point-in-time of any incremental backup. In addition, the metadata may include properties of the backed-up data, which are maintained separately from the backup data stored as objects. Accordingly, these properties may be searched to identify and locate backup data without having to retrieve the stored objects. ## Claims ### Claim 1 A system comprising: one or more processors; and a non-transitory computer-readable medium storing a plurality of instructions, which when executed, cause the one or more processors to: perform a backup of client data stored on a client device to a new set of objects stored on a cloud-based object storage, the client data including one or more data items each associated with one or more properties that are stored as part of the data item, the cloud-based object storage including existing objects associated with previous backups of existing client data; obtain, for each of the data items, the associated properties; store the associated properties as part of a set of entries within a data catalog, the associated properties for each data item stored as part of a corresponding entry that stores metadata of the data item; receive a request to identify a first data item stored within the new set of objects, the request including a search value; search the set of entries within the data catalog data using the search value; identify a first entry, amongst the set of entries within the data catalog, corresponding to the first data item based on the search value matching the metadata stored by the first entry; and retrieve the first data item from a first object, amongst the new set of objects, based on the metadata stored by the first entry indicating the first data item is stored within the first object. ### Claim 2 (depends on 1) The system of claim 1, wherein the plurality of instructions, when executed, further cause the one or more processors to: store backup metadata associated with the backup as an entry within a backup catalog, the backup metadata including at least a backup time of the backup. ### Claim 3 (depends on 2) The system of claim 2, wherein the metadata stored by the corresponding entries of the data items includes the backup time of the backup. ### Claim 4 (depends on 1) The system of claim 1, wherein the backup includes an incremental backup from a previously performed backup, and obtaining the associated properties includes obtaining changes to the properties since the previously performed backup for at least some of the data items. ### Claim 5 (depends on 1) The system of claim 1, wherein searching the set of entries within the data catalog data includes searching only the data catalog without accessing the new set of objects. ### Claim 6 (depends on 1) The system of claim 1, wherein each data item includes an email, and the one or more properties include at least one of an email subject, sender, receipt, and sent time. ### Claim 7 (depends on 1) The system of claim 1, wherein retrieving the first data item from the first object of the new set of objects identified by the first entry includes performing a full restore of the data items stored as part of the backup. ### Claim 8 A method comprising: performing a backup of client data stored on a client device to a new set of objects stored on a cloud-based object storage, the client data including one or more data items each associated with one or more properties that are stored as part of the data item, the cloud-based object storage including existing objects associated with previous backups of existing client data; obtaining, for each of the data items, the associated properties; storing the associated properties as part of a set of entries within a data catalog, the associated properties for each data item stored as part of a corresponding entry that stores metadata of the data item; receiving a request to identify a first data item stored within the new set of objects, the request including a search value; searching the set of entries within the data catalog data using the search value; identifying a first entry, amongst the set of entries within the data catalog, corresponding to the first data item based on the search value matching the metadata stored by the first entry; and retrieving the first data item from a first object, amongst the new set of objects, based on the metadata stored by the first entry indicating the first data item is stored within the first object. ### Claim 9 (depends on 8) The method of claim 8, further comprising: storing backup metadata associated with the backup as an entry within a backup catalog, the backup metadata including at least a backup time of the backup. ### Claim 10 (depends on 9) The method of claim 9, wherein the metadata stored by the corresponding entries of the data items includes the backup time of the backup. ### Claim 11 (depends on 8) The method of claim 8, wherein the backup includes an incremental backup from a previously performed backup, and obtaining the associated properties includes obtaining changes to the properties since the previously performed backup for at least some of the data items. ### Claim 12 (depends on 8) The method of claim 8, wherein searching the set of entries within the data catalog data includes searching only the data catalog without accessing the new set of objects. ### Claim 13 (depends on 8) The method of claim 8, wherein each data item includes an email, and the one or more properties include at least one of an email subject, sender, receipt, and sent time. ### Claim 14 (depends on 8) The method of claim 8, wherein retrieving the first data item from the first object of the new set of objects identified by the first entry includes performing a full restore of the data items stored as part of the backup. ### Claim 15 A computer program product comprising a non-transitory computer-readable medium having a computer-readable program code embodied therein to be executed by one or more processors, the program code including instructions to: perform a backup of client data stored on a client device to a new set of objects stored on a cloud-based object storage, the client data including one or more data items each associated with one or more properties that are stored as part of the data item, the cloud-based object storage including existing objects associated with previous backups of existing client data; obtain, for each of the data items, the associated properties; store the associated properties as part of a set of entries within a data catalog, the associated properties for each data item stored as part of a corresponding entry that stores metadata of the data item; receive a request to identify a first data item stored within the new set of objects, the request including a search value; search the set of entries within the data catalog data using the search value; identify a first entry, amongst the set of entries within the data catalog, corresponding to the first data item based on the search value matching the metadata stored by the first entry; and retrieve the first data item from a first object, amongst the new set of objects, based on the metadata stored by the first entry indicating the first data item is stored within the first object. ### Claim 16 (depends on 15) The computer program product of claim 15, wherein the program code includes further instructions to: store backup metadata associated with the backup as an entry within a backup catalog, the backup metadata including at least a backup time of the backup. ### Claim 17 (depends on 16) The computer program product of claim 16, wherein the metadata stored by the corresponding entries of the data items includes the backup time of the backup. ### Claim 18 (depends on 15) The computer program product of claim 15, wherein the backup includes an incremental backup from a previously performed backup, and obtaining the associated properties includes obtaining changes to the properties since the previously performed backup for at least some of the data items. ### Claim 19 (depends on 15) The computer program product of claim 15, wherein searching the set of entries within the data catalog data includes searching only the data catalog without accessing the new set of objects. ### Claim 20 (depends on 15) The computer program product of claim 15, wherein each data item includes an email, and the one or more properties include at least one of an email subject, sender, receipt, and sent time.