公开(公告)号：US11442623B2

公开(公告)日：2022-09-13

申请号：US16402099

申请日：2019-05-02

Applicant: Commvault Systems, Inc.

Inventor： Sri Karthik Bhagi ,  Sunil Kumar Gutta

IPC: G06F3/06 ,  G06F11/14 ,  G06F40/205

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.

公开(公告)号：US10740022B2

公开(公告)日：2020-08-11

申请号：US15981712

申请日：2018-05-16

Applicant: Commvault Systems, Inc.

Inventor： Sunil Kumar Gutta ,  Vijay H. Agrawal

IPC: G06F3/06 ,  G06F13/16 ,  G06F13/42

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.

公开(公告)号：US20220197518A1

公开(公告)日：2022-06-23

申请号：US17694275

申请日：2022-03-14

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.

公开(公告)号：US20210011754A1

公开(公告)日：2021-01-14

申请号：US17027439

申请日：2020-09-21

Applicant: Commvault Systems, Inc.

Inventor： Henry Wallace Dornemann ,  Rahul S. Pawar ,  Amit Mitkar ,  Sunil Kumar Gutta ,  Sumedh Pramod Degaonkar ,  Jianwei Chen

IPC: G06F9/455 ,  G06F3/06 ,  G06F11/14

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.

公开(公告)号：US20180129435A1

公开(公告)日：2018-05-10

申请号：US15705629

申请日：2017-09-15

Applicant: Commvault Systems, Inc.

Inventor： Sri Karthik Bhagi ,  Sunil Kumar Gutta ,  Vijay H. Agrawal ,  Rahul S. Pawar

IPC: G06F3/06

CPC classification number: G06F3/0619 ,  G06F3/065 ,  G06F3/0665 ,  G06F3/0689 ,  G06F11/00 ,  G06F11/1469

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 GUID Partition Table (GPT) disk to the block-level data volume, accessing one or more mount paths established by the virtual GPT 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 GPT disk.

公开(公告)号：US11803308B2

公开(公告)日：2023-10-31

申请号：US17694275

申请日：2022-03-14

Applicant: Commvault Systems, Inc.

Inventor： Sri Karthik Bhagi ,  Jon-Paul Futey ,  Sunil Kumar Gutta

IPC: G06F3/06 ,  G06F16/178

CPC classification number: G06F3/0619 ,  G06F3/065 ,  G06F3/067 ,  G06F3/0644 ,  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.

公开(公告)号：US11733877B2

公开(公告)日：2023-08-22

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

IPC: G06F3/06 ,  G06F11/14 ,  G06F11/30 ,  G06F11/00

CPC classification number: G06F3/0619 ,  G06F3/065 ,  G06F3/0665 ,  G06F3/0689 ,  G06F11/00 ,  G06F11/1448 ,  G06F11/1469 ,  G06F11/3034 ,  G06F11/1451 ,  G06F2201/815 ,  G06F2201/84

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.

公开(公告)号：US11436038B2

公开(公告)日：2022-09-06

申请号：US17027439

申请日：2020-09-21

Applicant: Commvault Systems, Inc.

Inventor： Henry Wallace Dornemann ,  Rahul S. Pawar ,  Amit Mitkar ,  Sunil Kumar Gutta ,  Sumedh Pramod Degaonkar ,  Jianwei Chen

IPC: G06F9/455 ,  G06F3/06 ,  G06F11/14

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.

公开(公告)号：US11327663B2

公开(公告)日：2022-05-10

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: G06F16/17 ,  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.

公开(公告)号：US09766825B2

公开(公告)日：2017-09-19

申请号：US14805615

申请日：2015-07-22

Applicant: Commvault Systems, Inc.

Inventor： Sri Karthik Bhagi ,  Sunil Kumar Gutta ,  Vijay H. Agrawal ,  Rahul S. Pawar

IPC: G06F3/06

CPC classification number: G06F3/0619 ,  G06F3/065 ,  G06F3/0665 ,  G06F3/0689 ,  G06F11/00 ,  G06F11/1469

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 GUID Partition Table (GPT) disk to the block-level data volume, accessing one or more mount paths established by the virtual GPT 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 GPT disk.