公开(公告)号：US10831608B2

公开(公告)日：2020-11-10

申请号：US15018151

申请日：2016-02-08

Applicant: Commvault Systems, Inc.

Inventor： Anand Prahlad ,  Rahul S. Pawar

IPC: G06F9/455 ,  G06F11/14 ,  G06F16/13 ,  G06F16/22 ,  G06F16/11 ,  G06F9/48

Abstract: A 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. The snapshot may be used by ancillary applications to perform various functions, such as content indexing, data classification, deduplication, e-discovery, and other functions.

公开(公告)号：US10733143B2

公开(公告)日：2020-08-04

申请号：US15670381

申请日：2017-08-07

Applicant: Commvault Systems, Inc.

Inventor： Rahul S. Pawar ,  Rajiv Kottomtharayil ,  Parag Gokhale ,  Sumer Dilip Deshpande ,  Henry Wallace Dornemann

IPC: G06F16/13 ,  G06F16/27 ,  G06F11/14

Abstract: Virtualization sprawl can lead to virtual machines with no designated periodic backup. If the data associated with these unprotected virtual machines is not backed up, it cannot be restored if needed, leading to system failures. A data storage system identifies and protects the unprotected virtual machines. For instance, the system compares a list of virtual machines with a list of computing devices having a designated backup policy in the data storage system and determines which of the virtual machines are unprotected. The system further automatically categorizes the unprotected virtual machines, identifies those unprotected virtual machines that remain uncategorized, and applies a default backup policy to the uncategorized and unprotected virtual machines to provide protected virtual machines.

公开(公告)号：US10650057B2

公开(公告)日：2020-05-12

申请号：US15684409

申请日：2017-08-23

Applicant: Commvault Systems, Inc.

Inventor： Rahul S. Pawar ,  Henry Wallace Dornemann ,  Rajiv Kottomtharayil ,  Chitra Ramaswamy ,  Ashwin Gautamchand Sancheti

IPC: G06F16/907 ,  G06F16/11 ,  G06F16/16 ,  G06F16/2455 ,  G06F9/455

Abstract: According to certain aspects, a method can include creating a backup copy of data associated with a virtual machine (VM) on one or more secondary storage devices, wherein the backup copy includes corresponding secondary copies of a plurality of files associated with the VM; analyzing metadata associated with the secondary copies to determine which of the plurality files are eligible to be removed from the primary storage device; in response determining that one or more files are eligible to be removed from the primary storage device, for respective file of the one or more files: determining whether the respective file has been changed since a first time at which the backup copy of the data associated with the VM was created; in response to determining that the respective file has not changed since the first time, removing the respective file; and adding a file placeholder for the removed file.

公开(公告)号：US10572468B2

公开(公告)日：2020-02-25

申请号：US15966522

申请日：2018-04-30

Applicant: Commvault Systems, Inc.

Inventor： Henry Wallace Dornemann ,  Rahul S. Pawar ,  Paramasivam Kumarasamy ,  Satish Chandra Kilaru ,  Ananda Venkatesha

IPC: G06F16/00 ,  G06F16/23

Abstract: The disclosed 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. Substantially concurrently with the ongoing execution of the virtual machine, a virtual-machine-file-relocation operation may move data blocks originating in the backup copy to a primary storage destination that becomes the virtual machine's primary data store after the relocation operation completes. An enhanced data agent, operating in conjunction with an enhanced media agent in a storage management system, coordinates restoring of the virtual machine and the launch of the relocation operation. The 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 the 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.

公开(公告)号：US10509573B2

公开(公告)日：2019-12-17

申请号：US15979215

申请日：2018-05-14

Applicant: Commvault Systems, Inc.

Inventor： Henry Wallace Dornemann ,  Rahul S. Pawar

IPC: G06F3/06 ,  G06F11/14 ,  G06F16/188 ,  G06F11/00 ,  G06F9/455

Abstract: According to certain aspects, a system includes a client device that includes a virtual machine (VM) executed by a hypervisor, a driver located within the hypervisor, and a data agent. The VM may include a virtual hard disk file and a change block bitmap file. The driver may intercept a first write operation generated by the VM to store data in a first sector, determine an identity of the first sector based on the intercepted write operation, determine an entry in the change block bitmap file that corresponds with the first sector, and modify the entry in the change block bitmap file to indicate that data in the first sector has changed. The data agent may generate an incremental backup of the VM based on the change block bitmap file in response to an instruction from a storage manager, where the incremental backup includes the data in the first sector.

公开(公告)号：US10417102B2

公开(公告)日：2019-09-17

申请号：US15716340

申请日：2017-09-26

Applicant: Commvault Systems, Inc.

Inventor： Santhosh Sanakkayala ,  Sarath Cheriyan Joseph ,  Ananda Venkatesha ,  Rajesh Polimera ,  Rahul S. Pawar ,  Henry Wallace Dornemann

IPC: G06F11/00 ,  G06F11/20 ,  G06F9/455 ,  G06F11/14 ,  G06F11/30 ,  H04L12/26 ,  G06F11/34 ,  G06F11/07 ,  H04L12/24

Abstract: An illustrative “VM heartbeat monitoring network” of heartbeat monitor nodes monitors target VMs in a data storage management system. Accordingly, target VMs are distributed and re-distributed among illustrative worker monitor nodes according to preferences in an illustrative VM distribution logic. Worker heartbeat monitor nodes use an illustrative ping monitoring logic to transmit special-purpose heartbeat packets to respective target VMs and to track ping responses. If a target VM is ultimately confirmed failed by its worker monitor node, an illustrative master monitor node triggers an enhanced storage manager to initiate failover for the failed VM. The enhanced storage manager communicates with the heartbeat monitor nodes and also manages VM failovers and other storage management operations in the system. Special features for cloud-to-cloud failover scenarios enable a VM in a first region of a public cloud to fail over to a second region.

公开(公告)号：US10387073B2

公开(公告)日：2019-08-20

申请号：US15473365

申请日：2017-03-29

Applicant: Commvault Systems, Inc.

Inventor： Sri Karthik Bhagi ,  Sunil Gutta ,  Henry Wallace Dornemann ,  Rahul S. Pawar

IPC: G06F3/06 ,  G06F11/14 ,  G06F9/455 ,  H04L29/08

Abstract: Embodiments disclosed herein include systems and processes for replicating one or more user computing systems of an information management system at an external resource system to create a backup or fallback of the user computing systems. Replicating the user computing systems may include replicating data as well as the applications, operating systems and configuration of the user computing systems. This replicated or fallback user computing system may be implemented on a virtual machine at the external resource system. Thus, if a user computing system becomes inaccessible, a new user computing system can be generated based on the backup copy of the user computing system at the external resource system. Further, in some embodiments, the copy of the user computing system may be interacted with at the external resource system. Thus, certain embodiments disclosed herein can be used to transition an information management system to an external resource system.

公开(公告)号：US09996534B2

公开(公告)日：2018-06-12

申请号：US15619324

申请日：2017-06-09

Applicant: Commvault Systems, Inc.

Inventor： Henry Wallace Dornemann ,  Rahul S. Pawar ,  Paramasivam Kumarasamy ,  Satish Chandra Kilaru ,  Ananda Venkatesha

IPC: G06F17/30 ,  G06F9/455

CPC classification number: G06F17/30008 ,  G06F9/45558 ,  G06F2009/45575

Abstract: The disclosed 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. Substantially concurrently with the ongoing execution of the virtual machine, a virtual-machine-file-relocation operation may move data blocks originating in the backup copy to a primary storage destination that becomes the virtual machine's primary data store after the relocation operation completes. An enhanced data agent, operating in conjunction with an enhanced media agent in a storage management system, coordinates restoring of the virtual machine and the launch of the relocation operation. The 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 the 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.

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：US20170300390A1

公开(公告)日：2017-10-19

申请号：US15473256

申请日：2017-03-29

Applicant: Commvault Systems, Inc.

Inventor： Henry Wallace Dornemann ,  Rahul S. Pawar ,  Jun H. Ahn

IPC: G06F11/14 ,  G06F3/06 ,  G06F17/30

CPC classification number: G06F17/30575 ,  G06F3/061 ,  G06F3/0619 ,  G06F3/064 ,  G06F3/0643 ,  G06F3/065 ,  G06F3/067 ,  G06F11/1448 ,  G06F11/1451 ,  G06F11/1458 ,  G06F11/1464 ,  G06F11/1469 ,  G06F17/30073 ,  G06F17/30138 ,  G06F17/302 ,  G06F17/30212 ,  G06F17/303 ,  G06F17/30339 ,  G06F17/30368 ,  G06F17/30581 ,  G06F2201/80 ,  G06F2201/84

Abstract: A system according to certain aspects may include a client computing device including: a database application configured to output a database file in a primary storage device(s), the database application outputting the database file as a series of application-level blocks; and a data agent configured to divide the database file into a plurality of first blocks having a first granularity larger than a second granularity of the application-level blocks such that each of the first blocks spans a plurality of the application-level blocks. The system may include a secondary storage controller computer(s) configured to: in response to instructions to create a secondary copy of the database file: copy the plurality of first blocks to a secondary storage device(s) to create a secondary copy of the database file; and create a table that provides a mapping between the copied plurality of first blocks and corresponding locations on the secondary storage device(s).