公开(公告)号：US11422732B2

公开(公告)日：2022-08-23

申请号：US16912184

申请日：2020-06-25

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：US11314424B2

公开(公告)日：2022-04-26

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

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

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：US11042318B2

公开(公告)日：2021-06-22

申请号：US16525283

申请日：2019-07-29

Applicant: Commvault Systems, Inc.

Inventor： Amit Bhaskar Ausarkar ,  Andrei Erofeev ,  Amit Mitkar ,  Vijay H. Agrawal

IPC: G06F3/06 ,  G06F11/14

Abstract: Certain embodiments described herein relate to an improved block-level replication system. One or more components in an information management system may receive a request to perform a block-level replication between a source storage device and a destination storage device, and depending on the specific replication mode requested, (i) store block-level changes directly to the destination storage device or (ii) first to a recovery point store and then later to the destination storage device.

公开(公告)号：US20190087108A1

公开(公告)日：2019-03-21

申请号：US16182532

申请日：2018-11-06

Applicant: Commvault Systems, Inc.

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

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

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：US09483511B2

公开(公告)日：2016-11-01

申请号：US14645982

申请日：2015-03-12

Applicant: CommVault Systems, Inc.

Inventor： Anand Prahlad ,  Vijay H. Agrawal

IPC: G06F17/00 ,  G06F17/30

CPC classification number: G06F17/30312 ,  G06F17/30144 ,  G06F17/30156 ,  G06F17/30194 ,  G06F17/30864 ,  G06F17/30911 ,  G06F2201/80

Abstract: Stubbing systems and methods are provided for intelligent data management in a replication environment, such as by reducing the space occupied by replication data on a destination system. In certain examples, stub files or like objects replace migrated, de-duplicated or otherwise copied data that has been moved from the destination system to secondary storage. Access is further provided to the replication data in a manner that is transparent to the user and/or without substantially impacting the base replication process. In order to distinguish stub files representing migrated replication data from replicated stub files, priority tags or like identifiers can be used. Thus, when accessing a stub file on the destination system, such as to modify replication data or perform a restore process, the tagged stub files can be used to recall archived data prior to performing the requested operation so that an accurate copy of the source data is generated.

公开(公告)号：US09002785B2

公开(公告)日：2015-04-07

申请号：US13955445

申请日：2013-07-31

Applicant: CommVault Systems, Inc.

Inventor： Anand Prahlad ,  Vijay H. Agrawal

IPC: G06F17/00 ,  G06F7/00 ,  G06F17/30

CPC classification number: G06F17/30312 ,  G06F17/30144 ,  G06F17/30156 ,  G06F17/30194 ,  G06F17/30864 ,  G06F17/30911 ,  G06F2201/80

Abstract: Stubbing systems and methods are provided for intelligent data management in a replication environment, such as by reducing the space occupied by replication data on a destination system. In certain examples, stub files or like objects replace migrated, de-duplicated or otherwise copied data that has been moved from the destination system to secondary storage. Access is further provided to the replication data in a manner that is transparent to the user and/or without substantially impacting the base replication process. In order to distinguish stub files representing migrated replication data from replicated stub files, priority tags or like identifiers can be used. Thus, when accessing a stub file on the destination system, such as to modify replication data or perform a restore process, the tagged stub files can be used to recall archived data prior to performing the requested operation so that an accurate copy of the source data is generated.

Abstract translation: 提供了在复制环境中进行智能数据管理的存根系统和方法，例如通过减少目标系统上复制数据占用的空间。 在某些示例中，存根文件或类似对象替换已从目标系统移动到辅助存储的已迁移，取消复制或以其他方式复制的数据。 以对用户透明的方式和/或基本上不影响基本复制过程的方式，进一步向复制数据提供访问。 为了区分代表迁移的复制数据的存根文件与复制存根文件，可以使用优先级标签或类似的标识符。 因此，当访问目标系统上的存根文件（例如修改复制数据或执行恢复过程）时，可以使用标记的存根文件在执行所请求的操作之前调用归档数据，以便源数据的准确副本 被生成。

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：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.

公开(公告)号：US08868494B2

公开(公告)日：2014-10-21

申请号：US13957824

申请日：2013-08-02

Applicant: CommVault Systems, Inc.

Inventor： Vijay H. Agrawal

IPC: G06F17/30

CPC classification number: G06F17/30174 ,  G06F17/30578

Abstract: Systems and methods for performing data replication are disclosed. Determining whether to update replicated data typically involves comparison of readily obtainable attributes of a given source file and its corresponding replicated file. Such attributes can be obtained from, for example, metadata. In certain situations, an additional assessment of the source and replicated files can be beneficial. For example, if integrity of an existing replicated file's content is maintained, one may not want to re-replicate the corresponding source file. For large source files, such a decision can provide substantial reductions in expenditures of available computing and network resources. In certain embodiments, a threshold for identifying such large files can be based on one or more operating parameters such as network type and available bandwidth. In certain embodiments, replication file's integrity can be checked by calculating and comparing checksums for the replication file and its corresponding source file.

Abstract translation: 公开了用于执行数据复制的系统和方法。 确定是否更新复制数据通常涉及给定源文件及其对应的复制文件的容易获得的属性的比较。 这样的属性可以从例如元数据获得。 在某些情况下，对源和复制文件的额外评估可能是有益的。 例如，如果维护现有复制文件的内容的完整性，则可能不想重新复制相应的源文件。 对于大型源文件，这样的决定可以大大减少可用计算和网络资源的支出。 在某些实施例中，用于识别这种大文件的阈值可以基于一个或多个操作参数，例如网络类型和可用带宽。 在某些实施例中，可以通过计算和比较复制文件及其对应的源文件的校验和来检查复制文件的完整性。

公开(公告)号：US08838923B2

公开(公告)日：2014-09-16

申请号：US14102050

申请日：2013-12-10

Applicant: CommVault Systems, Inc.

Inventor： Anand Prahlad ,  Vijay H. Agrawal

IPC: G06F12/00 ,  G06F7/00 ,  G06F12/16 ,  G06F11/14

CPC classification number: G06F12/16 ,  G06F11/1435 ,  G06F11/1451 ,  G06F11/1464 ,  G06F11/1471 ,  G06F2201/84

Abstract: A portable data protection system is described for protecting, transferring or copying data using continuous data protection (CDP) over intermittent or occasional connections between a computer system or mobile device containing the data to be protected, transferred or copied, called a data source, and one or more computer systems that receive the data, called a data target. CDP can be broken down logically into two phases: 1) detecting changes to data on a data source and 2) replicating the changes to a data target. The portable data protection system uses a method that performs the first phase continuously or near continuously on the data source, and the second phase when a connection is available between the data source and the data target.

Abstract translation: 描述了一种便携式数据保护系统，用于在包含被称为数据源的被保护，传送或复制的数据的计算机系统或移动设备之间的间歇或偶然连接上使用连续数据保护（CDP）来保护，传送或复制数据，以及 一个或多个接收数据的计算机系统，称为数据目标。 CDP可以逻辑分为两个阶段：1）检测对数据源上的数据的更改，以及2）将更改复制到数据目标。 便携式数据保护系统使用在数据源上连续或接近连续地执行第一阶段的方法，以及在数据源和数据目标之间可用的连接时的第二阶段。