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公开(公告)号：US20210334003A1
公开(公告)日：2021-10-28
申请号：US17372273
申请日：2021-07-09
Applicant: Commvault Systems, Inc.
Inventor： Vijay H. AGRAWAL , Sunil Kumar GUTTA , Manojkumar Machindra WAGHMARE
Abstract: To overcome problems encountered with instability and/or risk of data corruption arising from using software snapshots, the present approach relies instead on data replication and sparse files to provide personal or private versions of a data storage volume (“private writable snapshots”). The disclosed technological solution avoids the use of software snapshot technologies altogether. Instead, a family of inter-related and cascading sparse files are maintained as data sources of replicated data volumes. In the event that the server which controls these sparse files crashes, the sparse files themselves are persistent and remain uncorrupted in a data storage platform, such as a storage array. An illustrative Internet Small Computer Systems Interface server (“ISCSI server”) provides user computing devices with private writable snapshots of a desired volume of data using the illustrative sparse files.
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公开(公告)号：US20170262204A1
公开(公告)日：2017-09-14
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
CPC classification number: G06F9/45558 , G06F3/065 , G06F11/1438 , G06F11/1469 , G06F11/1484 , G06F2009/45583
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：US20190250826A1
公开(公告)日：2019-08-15
申请号：US15981712
申请日：2018-05-16
Applicant: Commvault Systems, Inc.
Inventor： Sunil Kumar GUTTA , Vijay H. AGRAWAL
Abstract: An illustrative ISCSI server computing device provides user computing devices with “private writable snapshots” of a desired volume of data and/or further provides “private writable backup copies.” The ISCSI service is provided without invoking snapshot limits imposed by storage arrays and further without specialized backup software and pseudo-disk drivers installed on the user computing devices. A user can browse as well as edit personal versions of any number and/or versions of block-level backup copies—the “private writable backup copies.” Likewise, a user can browse and edit personal versions of any number of snapshots of one or more versions of one or more desired data volumes—the “private writable snapshots.” A user can have any number of co-existing private writable snapshots and private writable backup copies. Sparse files, extent-files, software snapshots, and/or media agents co-residing on the ISCSI server are used in the illustrative embodiments.
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公开(公告)号：US20230400995A1
公开(公告)日：2023-12-14
申请号：US17852883
申请日：2022-06-29
Applicant: Commvault Systems, Inc.
Inventor： Manojkumar Machindra WAGHMARE , Amit Bhaskar AUSARKAR , Sunil Kumar GUTTA , Vijay H. AGRAWAL
CPC classification number: G06F3/064 , G06F9/45558 , G06F3/0664 , G06F3/0604 , G06F3/0679 , G06F2009/45583 , G06F2009/45575 , G06F2009/45595
Abstract: Systems and methods disclosed herein improve on current technology for block-level data replication to cloud computing environments. A new system architecture deploys one or more replication tail proxies in a cloud computing environment, locally (at the cloud) tracks replicated data and determines which replicated data meet criteria for reconstructing a desired point-in-time in the cloud, and persists data blocks received at the replication tail proxy until they are processed as recovery points. The disclosed approach presents resiliency and performance advantages. First, the resiliency of block-level data replication to cloud is improved by deploying the replication tail proxy in the destination cloud. Second, a Recovery Time Objective (RTO) is reduced by enabling faster cloud deployment of virtual machines for disaster recovery, failover, and/or test purposes based on the replicated data.
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公开(公告)号：US20210019059A1
公开(公告)日：2021-01-21
申请号：US17039786
申请日：2020-09-30
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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Patent Agency Ranking
公开(公告)号：US20190250827A1
公开(公告)日：2019-08-15
申请号：US15981770
申请日：2018-05-16
Applicant: Commvault Systems, Inc.
Inventor： Sunil Kumar GUTTA , Vijay H. AGRAWAL
Abstract: An illustrative ISCSI server computing device provides user computing devices with “private writable snapshots” of a desired volume of data and/or further provides “private writable backup copies.” The ISCSI service is provided without invoking snapshot limits imposed by storage arrays and further without specialized backup software and pseudo-disk drivers installed on the user computing devices. A user can browse as well as edit personal versions of any number and/or versions of block-level backup copies—the “private writable backup copies.” Likewise, a user can browse and edit personal versions of any number of snapshots of one or more versions of one or more desired data volumes—the “private writable snapshots.” A user can have any number of co-existing private writable snapshots and private writable backup copies. Sparse files, extent-files, software snapshots, and/or media agents co-residing on the ISCSI server are used in the illustrative embodiments.
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公开(公告)号：US20240354022A1
公开(公告)日：2024-10-24
申请号：US18759169
申请日：2024-06-28
Applicant: Commvault Systems, Inc.
Inventor： Manojkumar Machindra WAGHMARE , Amit Bhaskar AUSARKAR , Sunil Kumar GUTTA , Vijay H. AGRAWAL
CPC classification number: G06F3/064 , G06F3/0604 , G06F3/0664 , G06F3/067 , G06F9/45558 , G06F2009/45575 , G06F2009/45583 , G06F2009/45595
Abstract: Systems and methods disclosed herein improve on current technology for block-level data replication to cloud computing environments. A new system architecture deploys one or more replication tail proxies in a cloud computing environment, locally (at the cloud) tracks replicated data and determines which replicated data meet criteria for reconstructing a desired point-in-time in the cloud, and persists data blocks received at the replication tail proxy until they are processed as recovery points. The disclosed approach presents resiliency and performance advantages. First, the resiliency of block-level data replication to cloud is improved by deploying the replication tail proxy in the destination cloud. Second, a Recovery Time Objective (RTO) is reduced by enabling faster cloud deployment of virtual machines for disaster recovery, failover, and/or test purposes based on the replicated data.
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公开(公告)号：US20220214819A1
公开(公告)日：2022-07-07
申请号：US17706390
申请日：2022-03-28
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：US20210382633A1
公开(公告)日：2021-12-09
申请号：US16911291
申请日：2020-06-24
Applicant: Commvault Systems, Inc.
Inventor： Sri Karthik BHAGI , Jon-Paul FUTEY , Sunil Kumar GUTTA
IPC: G06F3/06 , G06F16/178
Abstract: An illustrative live synchronization feature uses file system block-level backup copies, snapshot techniques, change tracking, and volume-level granularity to ensure the integrity of destination volumes. Two protection mechanisms guard the destination data and ensure consistency from one live sync restore to the next. First, an inter-job software snapshot captures the destination volume image after each restore. The snapshot is created at the very end of each live sync restore and is reverted at the beginning of the next live sync restore. A second and more granular protection mechanism uses intra-job block monitoring to detect, and later to reverse, changes that the snapshots cannot capture. This second mechanism acts as a mini-block-level restore nested inside another block-level restore. This dual approach ensures that each incremental live sync restore finds the destination volume with a guaranteed pristine image identical to where the preceding live sync restore left it.
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公开(公告)号：US20200349024A1
公开(公告)日：2020-11-05
申请号：US16402099
申请日：2019-05-02
Applicant: Commvault Systems, Inc.
Inventor： Sri Karthik BHAGI , Sunil Kumar GUTTA
Abstract: An information management system is described herein that performs either a pre-processing or a post-processing operation to increase browse and restore speeds when a user attempts to browse for and restore files from a secondary copy of a data volume. For example, the information management system can implement the pre-processing operation by parsing a master file table (MFT) when a secondary copy operation is initiated on the data volume. The information management system can implement the post-processing operation by parsing the MFT after a secondary copy operation is complete. The parsing can occur to identify records of the MFT that include information useful for enabling a user to browse a secondary copy of the data volume. The information management system can then store the secondary copy of these records for use later in constructing an interface for browsing a secondary copy of the data volume.
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