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    BLOCK-LEVEL SINGLE INSTANCING
    41.
    发明申请
    BLOCK-LEVEL SINGLE INSTANCING 有权

    公开(公告)号：US20210263803A1

    公开(公告)日：2021-08-26

    申请号：US17169257

    申请日：2021-02-05

    Applicant: Commvault Systems, Inc.

    Inventor： Deepak Raghunath ATTARDE ,  Rajiv KOTTOMTHARAYIL ,  Manoj Kumar VIJAYAN

    IPC: G06F11/14 ,  G06F16/174 ,  G06F3/06

    Abstract: Described in detail herein are systems and methods for single instancing blocks of data in a data storage system. For example, the data storage system may include multiple computing devices (e.g., client computing devices) that store primary data. The data storage system may also include a secondary storage computing device, a single instance database, and one or more storage devices that store copies of the primary data (e.g., secondary copies, tertiary copies, etc.). The secondary storage computing device receives blocks of data from the computing devices and accesses the single instance database to determine whether the blocks of data are unique (meaning that no instances of the blocks of data are stored on the storage devices). If a block of data is unique, the single instance database stores it on a storage device. If not, the secondary storage computing device can avoid storing the block of data on the storage devices.

    MANAGING DELETIONS FROM A DEDUPLICATION DATABASE
    43.
    发明申请
    MANAGING DELETIONS FROM A DEDUPLICATION DATABASE 审中-公开

    公开(公告)号：US20190310968A1

    公开(公告)日：2019-10-10

    申请号：US16452309

    申请日：2019-06-25

    Applicant: Commvault Systems, Inc.

    Inventor： Deepak Raghunath ATTARDE ,  Manoj Kumar VIJAYAN

    IPC: G06F16/174 ,  G06F3/06

    Abstract: An information management system can manage the removal of data block entries in a deduplicated data store using working copies of the data block entries residing in a local data store of a secondary storage computing device. The system can use the working copies to identify data blocks for removal. Once the deduplication database is updated with the changes to the working copies (e.g., using a transaction based update scheme), the system can query the deduplication database for the database entries identified for removal. Once identified, the system can remove the database entries identified for pruning and/or the corresponding deduplication data blocks from secondary storage.

    MANAGING DELETIONS FROM A DEDUPLICATION DATABASE
    45.
    发明申请
    MANAGING DELETIONS FROM A DEDUPLICATION DATABASE 审中-公开

    公开(公告)号：US20190012328A1

    公开(公告)日：2019-01-10

    申请号：US16020900

    申请日：2018-06-27

    Applicant: Commvault Systems, Inc.

    Inventor： Deepak Raghunath ATTARDE ,  Manoj Kumar VIJAYAN

    IPC: G06F17/30 ,  G06F3/06

    Abstract: An information management system can manage the removal of data block entries in a deduplicated data store using working copies of the data block entries residing in a local data store of a secondary storage computing device. The system can use the working copies to identify data blocks for removal. Once the deduplication database is updated with the changes to the working copies (e.g., using a transaction based update scheme), the system can query the deduplication database for the database entries identified for removal. Once identified, the system can remove the database entries identified for pruning and/or the corresponding deduplication data blocks from secondary storage.

    SYSTEMS AND METHODS FOR RETAINING AND USING DATA BLOCK SIGNATURES IN DATA PROTECTION OPERATIONS
    46.
    发明申请
    SYSTEMS AND METHODS FOR RETAINING AND USING DATA BLOCK SIGNATURES IN DATA PROTECTION OPERATIONS 审中-公开

    公开(公告)号：US20170199699A1

    公开(公告)日：2017-07-13

    申请号：US15472737

    申请日：2017-03-29

    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.

    DISTRIBUTED FILE SYSTEM IN A DISTRIBUTED DEDUPLICATION DATA STORAGE SYSTEM
    48.
    发明申请
    DISTRIBUTED FILE SYSTEM IN A DISTRIBUTED DEDUPLICATION DATA STORAGE SYSTEM 审中-公开

    公开(公告)号：US20170192861A1

    公开(公告)日：2017-07-06

    申请号：US15299298

    申请日：2016-10-20

    Applicant: Commvault Systems, Inc.

    Inventor： Manoj Kumar VIJAYAN ,  Jaidev Oppath KOCHUNNI ,  Deepak Raghunath ATTARDE ,  Ramachandra Reddy ANKIREDDYPALLE

    IPC: G06F11/16 ,  G06F3/06

    Abstract: Systems and methods are provided herein for automatically configuring newly installed secondary storage computing devices and managing secondary storage computing devices when one or more become unavailable. For example, a storage manager can then detect the computing resources available to the newly installed secondary storage computing device, assign a role to the newly installed secondary storage computing device based on the detected computing resources, configure the newly installed secondary storage computing device with deduplication and storage policies used by the other secondary storage computing devices, re-partition secondary storage devices to allocate memory for the newly installed secondary storage computing device, and instruct other secondary storage computing devices to replicate their managed data such that the newly installed secondary storage computing device has access to the replicated data.

    CLIENT-SIDE REPOSITORY IN A NETWORKED DEDUPLICATED STORAGE SYSTEM
    49.
    发明申请
    CLIENT-SIDE REPOSITORY IN A NETWORKED DEDUPLICATED STORAGE SYSTEM 审中-公开
    在网络化的存储系统中的客户端记录

    公开(公告)号：US20150205681A1

    公开(公告)日：2015-07-23

    申请号：US14673021

    申请日：2015-03-30

    Applicant: CommVault Systems, Inc.

    Inventor： Manoj Kumar VIJAYAN ,  Deepak Raghunath ATTARDE ,  Hetalkumar N. JOSHI

    IPC: G06F11/14 ,  G06F17/30

    CPC classification number: G06F11/1456 ,  G06F11/1453 ,  G06F11/1464 ,  G06F11/1469 ,  G06F17/30312 ,  G06F17/30864 ,  G06F2201/80

    Abstract: A storage system according to certain embodiments includes a client-side repository (CSR). The CSR may communicate with a client at a higher data transfer rate than the rate used for communication between the client and secondary storage. During copy operations, for instance, some or all of the data being backed up or otherwise copied to secondary storage is stored in the CSR. During restore operations, copies of the data stored in the CSR is accessed from the CSR instead of from secondary storage, improving performance. Remaining data blocks not stored in the CSR can be restored from secondary storage.

    Abstract translation: 根据某些实施例的存储系统包括客户端存储库（CSR）。 CSR可以以比用于客户端和辅助存储之间的通信的速率更高的数据传输速率与客户端进行通信。 在复制操作期间，例如，备份或以其他方式复制到二级存储器的部分或全部数据存储在CSR中。 在恢复操作期间，存储在CSR中的数据的副本可以从CSR而不是从二级存储访问，从而提高性能。 不存储在CSR中的剩余数据块可以从辅助存储恢复。

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