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    SYSTEM AND METHOD FOR STORING REDUNDANT INFORMATION
    21.
    发明申请
    SYSTEM AND METHOD FOR STORING REDUNDANT INFORMATION 有权
    用于存储冗余信息的系统和方法

    公开(公告)号：US20140233366A1

    公开(公告)日：2014-08-21

    申请号：US14262878

    申请日：2014-04-28

    Applicant: CommVault Systems, Inc.

    Inventor： Anand Prahlad ,  Parag Gokhale ,  Rajiv Kottomtharayil ,  Manoj Kumar Vijayan ,  Deepak Raghunath Attarde

    IPC: G11B5/86

    CPC classification number: G06F3/065 ,  G06F3/061 ,  G06F3/0638 ,  G06F3/067 ,  G06F11/1453 ,  G06F17/30156 ,  G11B5/86

    Abstract: A method and system for reducing storage requirements and speeding up storage operations by reducing the storage of redundant data includes receiving a request that identifies one or more data objects to which to apply a storage operation. For each data object, the storage system determines if the data object contains data that matches another data object to which the storage operation was previously applied. If the data objects do not match, then the storage system performs the storage operation in a usual manner. However, if the data objects do match, then the storage system may avoid performing the storage operation.

    Abstract translation: 通过减少冗余数据的存储来减少存储要求和加速存储操作的方法和系统包括接收标识用于应用存储操作的一个或多个数据对象的请求。 对于每个数据对象，存储系统确定数据对象是否包含与之前应用存储操作的另一个数据对象相匹配的数据。 如果数据对象不匹配，则存储系统以通常的方式执行存储操作。 但是，如果数据对象匹配，则存储系统可能会避免执行存储操作。

    SHARING OF SECONDARY STORAGE DATA
    22.
    发明申请
    SHARING OF SECONDARY STORAGE DATA 有权
    共享二次存储数据

    公开(公告)号：US20140201154A1

    公开(公告)日：2014-07-17

    申请号：US14152871

    申请日：2014-01-10

    Applicant: CommVault Systems, Inc.

    Inventor： Prakash Varadharajan ,  Anand Vibhor ,  Amey Vijaykumar Karandikar ,  Manoj Kumar Vijayan ,  Deepak Raghunath Attarde

    IPC: G06F11/14

    CPC classification number: G06F11/1451 ,  G06F11/1448 ,  G06F11/1456 ,  G06F11/1469 ,  G06F11/2094 ,  G06F2201/84

    Abstract: An information management system according to certain aspects allows users to share a portion of a file (e.g., a document) stored in secondary storage. The user may specify a portion of a secondary storage file to share and send a link to the portion to another user. The other user can access the shared portion from the link, and just the shared portion may be restored from secondary storage. The system according to certain aspects provides a native view of secondary storage data on a client computing device. The index data and/or metadata relating to secondary storage data may be stored in native application format for access via the native source application.

    Abstract translation: 根据某些方面的信息管理系统允许用户共享存储在辅助存储器中的文件（例如，文档）的一部分。 用户可以指定辅助存储文件的一部分以共享并发送到另一用户的部分的链接。 另一个用户可以从链接访问共享部分，并且可以从辅助存储器恢复共享部分。 根据某些方面的系统提供在客户端计算设备上的辅助存储数据的本机视图。 与二次存储数据相关的索引数据和/或元数据可以以本机应用格式存储，以经由本地源应用访问。

    SYSTEMS AND METHODS FOR RETAINING AND USING DATA BLOCK SIGNATURES IN DATA PROTECTION OPERATIONS
    23.
    发明申请
    SYSTEMS AND METHODS FOR RETAINING AND USING DATA BLOCK SIGNATURES IN DATA PROTECTION OPERATIONS 有权
    在数据保护操作中保留和使用数据块签名的系统和方法

    公开(公告)号：US20140032864A1

    公开(公告)日：2014-01-30

    申请号：US14040247

    申请日：2013-09-27

    Applicant: CommVault Systems, Inc.

    Inventor： Manoj Kumar Vijayan ,  Deepak Raghunath Attarde

    IPC: G06F3/06

    CPC classification number: G06F3/0641 ,  G06F3/0608 ,  G06F3/061 ,  G06F3/0619 ,  G06F3/065 ,  G06F3/0652 ,  G06F3/067 ,  G06F3/0683 ,  G06F11/1453 ,  G06F11/1466

    Abstract: A system according to certain embodiments associates a signature value corresponding to a data block with one or more data blocks and a reference to the data block to form a signature/data word corresponding to the data block. The system further logically organizes the signature/data words into a plurality of files each comprising at least one signature/data word such that the signature values are embedded in the respective file. The system according to certain embodiments reads a previously stored signature value corresponding to a respective data block for sending from a backup storage system having at least one memory device to a secondary storage system. Based on an indication as to whether the data block is already stored on the secondary storage system, the system reads the data block from the at least one memory device for sending to the secondary storage system if the data block does not exist on the secondary storage system, wherein the signature value and not the data block is read from the at least one memory device if the data block exists on the secondary storage system.

    Abstract translation: 根据某些实施例的系统将对应于数据块的签名值与一个或多个数据块和对数据块的引用相关联，以形成对应于数据块的签名/数据字。 系统进一步逻辑地将签名/数据字组织成多个文件，每个文件包括至少一个签名/数据字，使得签名值被嵌入到相应的文件中。 根据某些实施例的系统读取对应于相应数据块的先前存储的签名值，用于从具有至少一个存储设备的备份存储系统发送到辅助存储系统。 基于关于数据块是否已经存储在辅助存储系统上的指示，如果数据块不存在于辅助存储器上，系统从至少一个存储器设备读取数据块以发送到辅助存储系统 系统，其中如果所述数据块存在于所述辅助存储系统上，则从所述至少一个存储设备读取所述签名值而不是所述数据块。

    Live browse cache enhacements for live browsing block-level backup copies of virtual machines and/or file systems
    28.
    发明授权
    Live browse cache enhacements for live browsing block-level backup copies of virtual machines and/or file systems 有权

    公开(公告)号：US11593228B2

    公开(公告)日：2023-02-28

    申请号：US16870722

    申请日：2020-05-08

    Applicant: Commvault Systems, Inc.

    Inventor： Henry Wallace Dornemann ,  Pratik S. Rana ,  Amit Mitkar ,  Deepak Raghunath Attarde ,  Ashwin Gautamchand Sancheti

    IPC: G06F11/14 ,  G06F16/13 ,  G06F16/172 ,  G06F9/455

    Abstract: An illustrative approach accelerates live browse operations for block-level backup copies in a data storage management system. A cache storage area is maintained for locally storing and serving key data blocks, thus relying less on retrieving data on demand from backup copies. Live browse operations are used for populating the cache storage area for speedier retrieval during subsequent live browsing and/or file indexing of the same backup copy, and vice versa. The key data blocks cached while file indexing and/or live browsing an earlier backup copy help to pre-fetch corresponding data blocks of later backup copies, thus producing a beneficial learning cycle. The approach is especially beneficial for cloud and tape backup media, and is available for a variety of data sources and backup copies, including block-level backup copies of virtual machines (VMs) and block-level backup copies of file systems, including UNIX-based and Windows-based operating systems and corresponding file systems.

    Systems and methods for managing single instancing data
    29.
    发明授权
    Systems and methods for managing single instancing data 有权

    公开(公告)号：US11593217B2

    公开(公告)日：2023-02-28

    申请号：US17233187

    申请日：2021-04-16

    Applicant: Commvault Systems, Inc.

    Inventor： Rajiv Kottomtharayil ,  Deepak Raghunath Attarde ,  Manoj Kumar Vijayan

    IPC: G06F11/14 ,  G06F16/174

    Abstract: Described in detail herein are systems and methods for managing single instancing data. Using a single instance database and other constructs (e.g. sparse files), data density on archival media (e.g. magnetic tape) is improved, and the number of files per storage operation is reduced. According to one aspect of a method for managing single instancing data, for each storage operation, a chunk folder is created on a storage device that stores single instancing data. The chunk folder contains three files: 1) a file that contains data objects that have been single instanced; 2) a file that contains data objects that have not been eligible for single instancing; and 3) a metadata file used to track the location of data objects within the other files. A second storage operation subsequent to a first storage operation contains references to data objects in the chunk folder created by the first storage operation instead of the data objects themselves.

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