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.

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

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

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).

公开(公告)号：US20190012339A1

公开(公告)日：2019-01-10

申请号：US16128289

申请日：2018-09-11

Applicant: Commvault Systems, Inc.

Inventor： Paramasivam Kumarasamy ,  Rahul S. Pawar ,  Amit Mitkar ,  Satish Chandra Kilaru

IPC: G06F17/30 ,  G06F11/14 ,  G06F9/455

Abstract: A data storage system receives a user instruction through a user interface to restore a specific virtual machine file from a block-level backup. The system accesses a file index which is created during the block-level backup by accessing the file allocation table of the underlying host system and associating the blocks with the file location information of the virtual machine files stored in the file allocation table. The system further creates a file level table based at least in part on the virtual machine file information stored in the file index, displays a listing of the virtual machine files from the file level table, and receives a user selected virtual machine file to restore.

公开(公告)号：US10108621B2

公开(公告)日：2018-10-23

申请号：US15685479

申请日：2017-08-24

Applicant: Commvault Systems, Inc.

Inventor： Paramasivam Kumarasamy ,  Prakash Varadharajan ,  Deepak Raghunath Attarde ,  Pavan Kumar Reddy Bedadala ,  Satish Chandra Kilaru

IPC: G06F17/30

Abstract: Techniques for enabling user search of content stored in a file archive include providing a search interface comprising a search rules portion and an action rules portion, receiving a file archive search criterion comprising at least one search rule, and searching the file archive using the search criterion. The techniques also include generating a set of files filtered using the search criterion and performing an action specified in the action rules portion on a file included in the set of files.

公开(公告)号：US20160306715A1

公开(公告)日：2016-10-20

申请号：US15197297

申请日：2016-06-29

Applicant: Commvault Systems, Inc.

Inventor： Paramasivam Kumarasamy ,  Rahul S. Pawar ,  Amit Mitkar ,  Satish Chandra Kilaru

IPC: G06F11/14 ,  G06F17/30 ,  G06F9/455

CPC classification number: G06F17/30345 ,  G06F9/45558 ,  G06F11/1458 ,  G06F11/1461 ,  G06F11/1469 ,  G06F17/30091 ,  G06F17/30126 ,  G06F17/30233 ,  G06F2009/45583 ,  G06F2201/815 ,  G06F2201/84

Abstract: A data storage system protects virtual machines using block-level backup operations and restores the data at a file level. The system accesses the virtual machine file information from the file allocation table of the host system underlying the virtualization layer. A file index associates this virtual machine file information with the related protected blocks in a secondary storage device during the block-level backup. Using the file index, the system can identify the specific blocks in the secondary storage device associated with a selected restore file. As a result, file level granularity for restore operations is possible for virtual machine data protected by block-level backup operations without restoring more than the selected file blocks from the block-level backup data.

Abstract translation: 数据存储系统使用块级备份操作保护虚拟机，并在文件级恢复数据。 系统从虚拟化层底层的主机系统的文件分配表中访问虚拟机文件信息。 在块级备份期间，文件索引将该虚拟机文件信息与辅助存储设备中的相关受保护块相关联。 使用文件索引，系统可以识别与所选还原文件相关联的辅助存储设备中的特定块。 因此，对于由块级备份操作保护的虚拟机数据，对于恢复操作的文件级别粒度是可能的，而不会从块级备份数据中还原多于所选文件块。

公开(公告)号：US20140201162A1

公开(公告)日：2014-07-17

申请号：US14098908

申请日：2013-12-06

Applicant: CommVault Systems, Inc.

Inventor： Paramasivam Kumarasamy ,  Rahul S. Pawar ,  Amit Mitkar ,  Satish Chandra Kilaru

IPC: G06F11/14

CPC classification number: G06F16/23 ,  G06F9/45558 ,  G06F11/1458 ,  G06F11/1461 ,  G06F11/1469 ,  G06F16/13 ,  G06F16/168 ,  G06F16/188 ,  G06F2009/45583 ,  G06F2201/815 ,  G06F2201/84

Abstract: A data storage system restores selected virtual machine files from a block-level backup without restoring blocks associated with files other than the selected virtual machine file. The system identifies the one or more blocks associated with a selected file from a file index that is created during the block-level backup of the virtual machine by accessing the file allocation tables of the underlying host system and associating the locations of the blocks with the file information from the file allocation table for the virtual files of the virtual machine. The system further restores the identified blocks without restoring blocks associated with files other than the selected file and/or file version, recreates the selected file from the restored blocks, and presents the restored file to the user.

Abstract translation: 数据存储系统从块级备份还原选定的虚拟机文件，而不恢复与所选虚拟机文件以外的文件相关联的块。 该系统通过访问底层主机系统的文件分配表并将块的位置与该虚拟机的位置相关联，从在虚拟机的块级别备份期间创建的文件索引识别与所选择的文件相关联的一个或多个块 虚拟机的虚拟文件的文件分配表中的文件信息。 系统进一步恢复所识别的块，而不恢复与所选文件和/或文件版本以外的文件相关联的块，从恢复的块重新创建所选择的文件，并将恢复的文件呈现给用户。