公开(公告)号：US20130339299A1

公开(公告)日：2013-12-19

申请号：US13916434

申请日：2013-06-12

Applicant: CommVault Systems, Inc.

Inventor： Marcus S. Muller ,  David Ngo

IPC: G06F11/14

CPC classification number: G06F11/1458 ,  G06F11/1415 ,  G06F11/1448 ,  G06F11/1451 ,  G06F11/1453 ,  G06F11/1464 ,  G06F17/30082 ,  G06F17/30097 ,  G06F17/30156 ,  G06F17/30159 ,  G06F17/30221 ,  G06F17/30283 ,  G06F17/30306 ,  G06F17/30312 ,  G06F17/30386 ,  G06F17/30575 ,  G06F17/30943 ,  G06F2201/80

Abstract: A storage system according to certain embodiments includes a client-side signature repository that includes information representative of a set of data blocks stored in primary storage. During copy or backup operations, the system can use the client-side signature repository to identify data blocks located in primary storage that are new or that have changed. The system can also use the client-side signature repository to identify multiple locations within primary storage where different instances of the data blocks are located.

Abstract translation: 根据某些实施例的存储系统包括客户端签名库，其包括表示存储在主存储器中的一组数据块的信息。 在复制或备份操作期间，系统可以使用客户端签名库来识别位于主存储中的新的或已更改的数据块。 系统还可以使用客户端签名库来标识数据块的不同实例所在的主存储中的多个位置。

公开(公告)号：US11082489B2

公开(公告)日：2021-08-03

申请号：US16893283

申请日：2020-06-04

Applicant: Commvault Systems, Inc.

Inventor： Jun H. Ahn ,  David Ngo

IPC: G06F15/16 ,  H04L29/08 ,  G06F16/23 ,  G06Q10/10 ,  H04L12/58 ,  G06F11/14

Abstract: A method and system for identifying changes to a data set, such as data within a mailbox, and performing actions based on the identified changes is discussed. In some examples, the system receives an indication of a change to a mailbox, creates a change journal entry for the change, and identifies data to be copied via the change journal entry. In some examples, the system leverages the change journal to associate messages with changes to a mailbox.

公开(公告)号：US10997035B2

公开(公告)日：2021-05-04

申请号：US16553090

申请日：2019-08-27

Applicant: Commvault Systems, Inc.

Inventor： David Ngo ,  Anand Prahlad ,  Parag Gokhale ,  Rahul S. Pawar

IPC: G06F11/14

Abstract: A system and method for using a snapshot as a data source is described. In some cases, the 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.

公开(公告)号：US20200057696A1

公开(公告)日：2020-02-20

申请号：US16553090

申请日：2019-08-27

Applicant: Commvault Systems, Inc.

Inventor： David Ngo ,  Anand Prahlad ,  Parag Gokhale ,  Rahul S. Pawar

IPC: G06F11/14

Abstract: A system and method for using a snapshot as a data source is described. In some cases, the 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.

公开(公告)号：US10402277B2

公开(公告)日：2019-09-03

申请号：US14618241

申请日：2015-02-10

Applicant: CommVault Systems, Inc.

Inventor： David Ngo ,  Anand Prahlad ,  Parag Gokhale ,  Rahul S. Pawar

IPC: G06F11/14

Abstract: A system and method for using a snapshot as a data source is described. In some cases, the 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.

公开(公告)号：US10176053B2

公开(公告)日：2019-01-08

申请号：US15067766

申请日：2016-03-11

Applicant: Commvault Systems, Inc.

Inventor： Marcus S. Muller ,  David Ngo

IPC: G06F17/30 ,  G06F11/14

Abstract: A storage system according to certain embodiments includes a client-side signature repository that includes information representative of a set of data blocks stored in primary storage. During restore operations, the system can use the client-side signature repository to identify data blocks located in primary storage. The system can also use the client-side signature repository to identify multiple locations within primary storage where instances of some of the data blocks to be restored are located. Accordingly, during a restore operation of one client computing device, the system can source a data block to be restored to the client computing device from another client computing device that is in primary storage.

公开(公告)号：US20170293532A1

公开(公告)日：2017-10-12

申请号：US15471640

申请日：2017-03-28

Applicant: Commvault Systems, Inc.

Inventor： Anand Prahlad ,  David Ngo

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

CPC classification number: G06F11/1458 ,  G06F3/0604 ,  G06F3/0619 ,  G06F3/0638 ,  G06F3/065 ,  G06F3/0653 ,  G06F3/0673 ,  G06F3/0683 ,  G06F11/1446 ,  G06F17/3007 ,  G06F17/30174 ,  G06F17/30179 ,  G06F17/30212 ,  G06F17/30371 ,  G06F17/30581 ,  G06F2201/82 ,  H04L67/1095

Abstract: Performing data management operations on replicated data in a computer network. Log entries are generated for data management operations of an application executing on a source system. Consistency point entries are used to indicate a time of a known good, or recoverable, state of the application. A destination system is configured to process a copy of the log and consistency point entries to replicate data in a replication volume, the replicated data being a copy of the application data on the source system. When the replicated data represents a known good state of the application, as determined by the consistency point entries, the destination system(s) may perform a storage operation (e.g., snapshot, backup) to copy the replicated data and to logically associate the copied data with a time information (e.g., time stamp) indicative of the source system time when the application was in the known good state.

公开(公告)号：US09606994B2

公开(公告)日：2017-03-28

申请号：US14814173

申请日：2015-07-30

Applicant: CommVault Systems, Inc.

Inventor： Anand Prahlad ,  Jeremy Alan Schwartz ,  David Ngo ,  Brian Brockway ,  Marcus S. Muller

IPC: G06F7/02 ,  G06F17/30 ,  G06F3/06 ,  G06F11/14

CPC classification number: G06F17/30138 ,  G06F3/0604 ,  G06F3/0605 ,  G06F3/0649 ,  G06F3/0685 ,  G06F11/1435 ,  G06F11/1451 ,  G06F11/1461 ,  G06F11/1464 ,  G06F11/1466 ,  G06F11/1471 ,  G06F17/3007 ,  G06F17/30079 ,  G06F17/30082 ,  G06F17/30094 ,  G06F17/301 ,  G06F17/30106 ,  G06F17/30115 ,  G06F17/30144 ,  G06F17/30194 ,  G06F17/30312 ,  G06F17/30321 ,  G06F17/30424 ,  G06F17/30528 ,  G06F17/30598 ,  G06F2201/80 ,  Y10S707/99942 ,  Y10S707/99948 ,  Y10S707/99955

Abstract: Systems and methods for managing electronic data are disclosed. Various data management operations can be performed based on a metabase formed from metadata. Such metadata can be identified from an index of data interactions generated by a journaling module, and obtained from their associated data objects stored in one or more storage devices. In various embodiments, such processing of the index and storing of the metadata can facilitate, for example, enhanced data management operations, enhanced data identification operations, enhanced storage operations, data classification for organizing and storing the metadata, cataloging of metadata for the stored metadata, and/or user interfaces for managing data. In various embodiments, the metabase can be configured in different ways. For example, the metabase can be stored separately from the data objects so as to allow obtaining of information about the data objects without accessing the data objects or a data structure used by a file system.

公开(公告)号：US20170078386A1

公开(公告)日：2017-03-16

申请号：US15360036

申请日：2016-11-23

Applicant: Commvault Systems, Inc.

Inventor： Jun H. Ahn ,  David Ngo

IPC: H04L29/08 ,  H04L12/58

CPC classification number: H04L67/1095 ,  G06F11/1446 ,  G06F17/30368 ,  G06Q10/107 ,  H04L51/08 ,  H04L51/22 ,  H04L51/24

Abstract: A method and system for identifying changes to a data set, such as data within a mailbox, and performing actions based on the identified changes is discussed. In some examples, the system receives an indication of a change to a mailbox, creates a change journal entry for the change, and identifies data to be copied via the change journal entry. In some examples, the system leverages the change journal to associate messages with changes to a mailbox.

Abstract translation: 讨论了用于识别诸如邮箱内的数据的数据集的改变以及基于所识别的改变来执行动作的方法和系统。 在一些示例中，系统接收到对邮箱的更改的指示，为更改创建更改日记帐分录，并通过更改日记帐分录标识要复制的数据。 在一些示例中，系统利用更改日志将邮件与邮箱的更改相关联。

公开(公告)号：US09298559B2

公开(公告)日：2016-03-29

申请号：US13874323

申请日：2013-04-30

Applicant: CommVault Systems, Inc.

Inventor： David Ngo

IPC: G06F17/30 ,  G06F7/00 ,  G06F11/14

CPC classification number: G06F11/1446 ,  G06F11/1448 ,  G06F11/1461 ,  G06F11/1471 ,  G06F17/30551 ,  G06F2201/80 ,  G06F2201/84

Abstract: This application describes techniques for creating a second snapshot of a first snapshot of a set of data, modifying the first snapshot, and reverting the modifications to the first snapshot. For example, portions of one or more transaction logs may be played into a database to put the database in a particular state a particular point in time. The second snapshot may then be used to revert to a prior state of the database such that additional transaction logs may be played into the database. These techniques enable the ability to put the database into multiple states as the database existed at multiple points in time. Therefore, data can be recovered from the database as the data existed at different points in time. Moreover, individual data objects in the database can be accessed and analyzed as the individual data objects existed at different points in time.