公开(公告)号：US11467863B2

公开(公告)日：2022-10-11

申请号：US16937404

申请日：2020-07-23

Applicant: Commvault Systems, Inc.

Inventor： Henry Wallace Dornemann ,  Amit Mitkar ,  Sanjay Kumar ,  Satish Chandra Kilaru ,  Sumedh Pramod Degaonkar

IPC: G06F9/455 ,  G06F11/14 ,  G06F16/182

Abstract: Illustrative systems and methods enable a virtual machine (“VM”) to be powered up at any hypervisor regardless of hypervisor type, based on live-mounting VM data that was originally backed up into a hypervisor-independent format by a block-level backup operation. Afterwards, the backed up VM executes anywhere anytime without needing to find a hypervisor that is the same as or compatible with the original source VM's hypervisor. The backed up VM payload data is rendered portable to any virtualized platform. Thus, a VM can be powered up at one or more test stations, data center or cloud recovery environments, and/or backup appliances, without the prior-art limitations of finding a same/compatible hypervisor for accessing and using backed up VM data. An illustrative media agent maintains cache storage that acts as a way station for data blocks retrieved from an original backup copy, and stores data blocks written by the live-mounted VM.

公开(公告)号：US11238064B2

公开(公告)日：2022-02-01

申请号：US16660540

申请日：2019-10-22

Applicant: Commvault Systems, Inc.

Inventor： Amit Mitkar ,  Sanjay Kumar

IPC: G06F16/00 ,  G06F16/27

Abstract: A system according to certain aspects improves the process of performing snapshot replication operations (e.g., maintaining a mirror copy of primary data at a secondary location by generating snapshots of the primary data). The system can collect and maintain cumulative block-level changes to the primary data after each sub-interval of a plurality of sub-intervals between the snapshots. When a snapshot is generated, any changes to the primary data not reflected in the cumulative block-level changes are identified based on the snapshot and transmitted to the secondary location along with the cumulative block-level changes. By the time the snapshot is generated, some or all of the changes to the primary data associated with the given snapshot have already been included in the cumulative block-level changes, thereby reducing the time and computing resources spent to identify and collect the changes for transmission to the secondary location.

公开(公告)号：US20200241908A1

公开(公告)日：2020-07-30

申请号：US16262753

申请日：2019-01-30

Applicant: Commvault Systems, Inc.

Inventor： Henry Wallace Dornemann ,  Amit Mitkar ,  Sanjay Kumar ,  Satish Chandra Kilaru ,  Sumedh Pramod Degaonkar

IPC: G06F9/455 ,  G06F11/14

Abstract: Illustrative systems and methods enable a virtual machine (“VM”) to be powered up at any hypervisor regardless of hypervisor type, based on live-mounting VM data that was originally backed up into a hypervisor-independent format by a block-level backup operation. Afterwards, the backed up VM executes anywhere anytime without needing to find a hypervisor that is the same as or compatible with the original source VM's hypervisor. The backed up VM payload data is rendered portable to any virtualized platform. Thus, a VM can be powered up at one or more test stations, data center or cloud recovery environments, and/or backup appliances, without the prior-art limitations of finding a same/compatible hypervisor for accessing and using backed up VM data. An illustrative media agent maintains cache storage that acts as a way station for data blocks retrieved from an original backup copy, and stores data blocks written by the live-mounted VM.