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公开(公告)号：US10776209B2
公开(公告)日：2020-09-15
申请号：US14537698
申请日：2014-11-10
Applicant: CommVault Systems, Inc.
Inventor： Rahul S. Pawar , Henry Wallace Dornemann
Abstract: According to certain aspects, a method can include, at a first time, performing an incremental backup of first data associated with a virtual machine (VM) residing on a source client computing device from the source client computing device to one or more secondary storage devices to create a backup copy of the VM, where the VM is associated with a hypervisor of a first type; receiving an instruction to restore the first data associated with the VM from the one or more secondary storage devices; retrieving the first data from the one or more secondary storage devices; and applying the first data to second data associated with a replicated VM running on the destination client computing device, where the replicated VM is a replicated version of the VM, and where the second data corresponds to data of the VM at a time before the first time.
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公开(公告)号：US20200057696A1
公开(公告)日：2020-02-20
申请号：US16553090
申请日：2019-08-27
Applicant: Commvault Systems, Inc.
Inventor： David Ngo , Anand Prahlad , Parag Gokhale , Rahul S. Pawar
IPC: G06F11/14
Abstract: A system and method for using a snapshot as a data source is described. In some cases, the system stores a snapshot and an associated data structure or index to storage media to create a secondary copy of a volume of data. In some cases, the associated index includes application specific data about a file system or other application that created the data to identify the location of the data. The associated index may include three entries, and may be used to facilitate the recovery of data via the snapshot.
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公开(公告)号：US10452303B2
公开(公告)日：2019-10-22
申请号：US15911575
申请日：2018-03-05
Applicant: Commvault Systems, Inc.
Inventor： Henry Wallace Dornemann , Rahul S. Pawar , Paramasivam Kumarasamy , Satish Chandra Kilaru , Ananda Venkatesha
IPC: G06F9/455 , G06F11/14 , G06F3/06 , G06F12/0862
Abstract: Systems and methods enable a virtual machine, including any applications executing thereon, to quickly start executing and servicing users based on pre-staged data blocks supplied from a backup copy in secondary storage. An enhanced media agent may pre-stage certain backed up data blocks which may be needed to launch the virtual machine, based on predictive analysis pertaining to the virtual machine's operational profile. The enhanced media agent may also pre-stage backed up data blocks for a virtual-machine-file-relocation operation, based on the operation's relocation scheme. Servicing read requests to the virtual machine may take priority over ongoing pre-staging of backed up data. Read requests may be tracked so that the media agent may properly maintain the contents of an associated read cache. Some embodiments of the illustrative storage management system may lack, or may simply not require, the relocation operation, and may operate in a “live mount” configuration.
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公开(公告)号：US10402277B2
公开(公告)日：2019-09-03
申请号：US14618241
申请日：2015-02-10
Applicant: CommVault Systems, Inc.
Inventor： David Ngo , Anand Prahlad , Parag Gokhale , Rahul S. Pawar
IPC: G06F11/14
Abstract: A system and method for using a snapshot as a data source is described. In some cases, the system stores a snapshot and an associated data structure or index to storage media to create a secondary copy of a volume of data. In some cases, the associated index includes application specific data about a file system or other application that created the data to identify the location of the data. The associated index may include three entries, and may be used to facilitate the recovery of data via the snapshot.
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公开(公告)号：US10296607B2
公开(公告)日：2019-05-21
申请号：US15943074
申请日：2018-04-02
Applicant: Commvault Systems, Inc.
Inventor： Rahul S. Pawar , Rajiv Kottomtharayil , Douglas Cary Swallow , Prakash Varadharajan
IPC: G06F17/30
Abstract: A data storage system protects data identified for deletion which has been created or modified between scheduled data backups. For instance, the system monitors data operations and when the data operation is a delete, the system determines whether the data identified for deletion has been protected by a backup operation. Data that has not been backed up, such as newly created data, is copied to temporary storage before deletion. When the data has been protected, the system determines whether the data has been modified after the backup operation. Data modified after the backup operation is copied to temporary storage before deletion.
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Patent Agency Ranking
公开(公告)号：US10296368B2
公开(公告)日：2019-05-21
申请号：US15436563
申请日：2017-02-17
Applicant: Commvault Systems, Inc.
Inventor： Henry Wallace Dornemann , Rahul S. Pawar , Amit Mitkar , Sunil Kumar Gutta , Sumedh Pramod Degaonkar , Jianwei Chen
Abstract: Hypervisor-independent block-level live browse is used for directly accessing backed up virtual machine (VM) data. Hypervisor-free file-level recovery (block-level pseudo-mount) from backed up VMs also is disclosed. Backed up virtual machine (“VM”) data can be browsed without needing or using a hypervisor. Individual backed up VM files can be requested and restored to anywhere without a hypervisor and without the need to restore the rest of the backed up virtual disk. Hypervisor-agnostic VM backups can be browsed and recovered without a hypervisor and from anywhere, and individual backed up VM files can be restored to anywhere, e.g., to a different VM platform, to a non-VM environment, without restoring an entire virtual disk, and without a recovery data agent at the destination.
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公开(公告)号：US20190087108A1
公开(公告)日：2019-03-21
申请号：US16182532
申请日：2018-11-06
Applicant: Commvault Systems, Inc.
Inventor： Sri Karthik Bhagi , Sunil Kumar Gutta , Vijay H. Agrawal , Rahul S. Pawar
Abstract: Systems and methods for performing file-level restore operations for block-level data volumes are described. In some embodiments, the systems and methods restore data from a block-level data volume contained in secondary storage by receiving a request to restore one or more files from the block-level data volume, mounting a virtual disk to the block-level data volume, accessing one or more mount paths established by the virtual disk between the data agent and the block-level data volume, and browsing data from one or more files within the block-level data volume via the established one or more mount paths provided by the virtual disk.
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公开(公告)号：US10228962B2
公开(公告)日：2019-03-12
申请号：US15365756
申请日：2016-11-30
Applicant: Commvault Systems, Inc.
Inventor： Henry Wallace Dornemann , Ajay Venkat Nagrale , Rahul S. Pawar , Ananda Venkatesha
Abstract: An illustrative “Live Synchronization” feature in a data storage management system can reduce the downtime that arises in failover situations. The illustrative Live Sync embodiment uses backup data to create and maintain a ready (or “warm”) virtualized computing platform comprising one or more virtual machines (“VMs”) that are configured and ready to be activated and take over data processing from another data processing platform operating in the production environment. The “warm” computing platform awaits activation as a failover solution for the production system(s) and can be co-located at the production data center, or configured at a remote or disaster recovery site, which in some embodiments is configured “in the cloud.” Both local and remote illustrative embodiments are discussed herein. An “incremental forever” approach can be combined with deduplication and synthetic full backups to speed up data transfer and update the disaster recovery sites.
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公开(公告)号：US10223212B2
公开(公告)日：2019-03-05
申请号：US14717950
申请日：2015-05-20
Applicant: Commvault Systems, Inc.
Inventor： Paramasivam Kumarasamy , Brahmaiah Vallabhaneni , Rahul S. Pawar , Henry Wallace Dornemann , Jun H. Ahn , Amey Vijaykumar Karandikar , Amit Mitkar , Muthusamy Senthilnathan , Satish Chandra Kilaru
Abstract: According to certain aspects, a system may include a data agent configured to: process a database file residing on a primary storage device(s) to identify a subset of data in the database file for archiving, the database file generated by a database application; and extract the subset of the data from the database file and store the subset of the data in an archive file on the primary storage device(s) as a plurality of blocks having a common size; and at least one secondary storage controller computer configured to, as part of a secondary copy operation in which the archive file is copied to a secondary storage device(s): copy the plurality of blocks to the secondary storage devices to create a secondary copy of the archive file; and create a table that provides a mapping between the copied plurality of blocks and corresponding locations in the secondary storage device(s).
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公开(公告)号：US10223211B2
公开(公告)日：2019-03-05
申请号：US14717816
申请日：2015-05-20
Applicant: Commvault Systems, Inc.
Inventor： Paramasivam Kumarasamy , Rahul S. Pawar , Henry Wallace Dornemann , Jun H. Ahn , Brahmaiah Vallabhaneni , Girish Ramohalli Gopala Rao
Abstract: According to certain aspects, a system may include a computing device configured to: intercept a request from a database application to read a portion of a database file, where a secondary copy of the database file resides on a secondary storage device(s) and is organized as a plurality of first blocks, wherein the request includes a database file offset(s) corresponding to the requested portion; and map the database file offset(s) to a subset of the first blocks that correspond to requested database object(s). The system may include a secondary storage controller computer(s) configured to: access a table that maps the plurality of first blocks to storage locations on the secondary storage device(s); using the table, locate and retrieve the subset of the first blocks on the secondary storage device(s); and forward the retrieved first blocks for storage in a primary storage device(s).
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