公开(公告)号：US20170192868A1

公开(公告)日：2017-07-06

申请号：US15299281

申请日：2016-10-20

Applicant: Commvault Systems, Inc.

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

IPC: G06F11/20 ,  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.

公开(公告)号：US20160142483A1

公开(公告)日：2016-05-19

申请号：US14542360

申请日：2014-11-14

Applicant: CommVault Systems, Inc.

Inventor： Vimal Kumar NALLATHAMBI ,  Manoj Kumar VIJAYAN

IPC: H04L29/08 ,  G06F17/30

CPC classification number: G06F11/1451 ,  G06F3/0619 ,  G06F3/065 ,  G06F3/0662 ,  G06F3/067 ,  G06F11/1461 ,  G06F17/30575 ,  G06F2201/84 ,  H04L67/1097

Abstract: An illustrative approach to managing snapshots streamlines how and when snapshots are generated in a storage management system, such that fewer snapshots may be generated without diminishing the scope of data protection. A novel unified-snapshot storage policy may govern snapshots for any number of subclients. A unified-snapshot job based on the unified-snapshot storage policy enables the illustrative storage management system to automatically discover relevant components and generate at most one snapshot per target logical unit number (“LUN”) in a storage array. Each snapshot may comprise the data of any number of subclients and/or clients in the storage management system. Accordingly, one unified-snapshot job may yield a minimum but sufficient number of snapshots comprising data of all subclients associated with the governing unified-snapshot storage policy. An enhanced storage manager may manage the unified-snapshot jobs. One or more enhanced media agents and/or data agents may participate in the unified-snapshot jobs and in subsequent cataloguing of the snapshots.

Abstract translation: 管理快照的说明性方法简化了在存储管理系统中如何和何时生成快照，从而可以生成更少的快照，而不会减少数据保护的范围。 一种新颖的统一快照存储策略可以管理任意数量的子客户端的快照。 基于统一快照存储策略的统一快照作业使说明性存储管理系统能够自动发现相关组件，并在存储阵列中每个目标逻辑单元号（“LUN”）最多生成一个快照。 每个快照可以包括存储管理系统中的任何数量的子客户端和/或客户端的数据。 因此，一个统一快照作业可以产生包括与管理统一快照存储策略相关联的所有子客户端的数据的最小但足够数量的快照。 增强型存储管理器可以管理统一快照作业。 一个或多个增强的媒体代理和/或数据代理可以参与统一快照作业以及随后的快照编目。

公开(公告)号：US20150207883A1

公开(公告)日：2015-07-23

申请号：US14675418

申请日：2015-03-31

Applicant: CommVault Systems, Inc.

Inventor： Manoj Kumar VIJAYAN ,  Srikant VISWANATHAN ,  Deepak Raghunath ATTARDE ,  Varghese DEVASSY ,  Rajiv KOTTOMTHARAYIL

IPC: H04L29/08

CPC classification number: H04L67/1097 ,  G06F3/061 ,  G06F3/0619 ,  G06F3/064 ,  G06F3/0641 ,  G06F3/067 ,  G06F13/426

Abstract: According to various embodiments, systems and methods are provided that relate to shared access to Storage Area Networks (SAN) devices. In one embodiment, a Storage Area Network (SAN) host is provided, comprising: a server component: a first host bus adapter configured to be connected to a SAN client over a first SAN; a second host bus adapter configured to be connected to a SAN storage device over a second SAN; and wherein the server component is configured to manage a data block on the SAN storage device, receive a storage operation request from the SAN client through the first host bus adapter, and in response to the storage operation request, perform a storage operation on the data block, the storage operation being performed over the second SAN through the second host bus adapter.

Abstract translation: 根据各种实施例，提供了涉及对存储区域网络（SAN）设备的共享访问的系统和方法。 在一个实施例中，提供了一种存储区域网络（SAN）主机，包括：服务器组件：被配置为经由第一SAN连接到SAN客户端的第一主机总线适配器; 配置为经由第二SAN连接到SAN存储设备的第二主机总线适配器; 并且其中所述服务器组件被配置为管理所述SAN存储设备上的数据块，通过所述第一主机总线适配器从所述SAN客户端接收存储操作请求，并且响应于所述存储操作请求，对所述数据执行存储操作 阻止，通过第二主机总线适配器在第二SAN上执行存储操作。

公开(公告)号：US20230236940A1

公开(公告)日：2023-07-27

申请号：US18127575

申请日：2023-03-28

Applicant: Commvault Systems, Inc.

Inventor： Dmitriy Borisovich ZAKHARKIN ,  Manoj Kumar PRADHAN ,  Manoj Kumar VIJAYAN

IPC: G06F11/20 ,  G06F11/14

CPC classification number: G06F11/2092 ,  G06F11/1451 ,  G06F2201/82

Abstract: An information management system implements a method for determining whether to initiate a failover of a storage manager in the system. Nodes in the system may be assigned as monitoring nodes configured to communicate with a storage manager. Furthermore, each monitoring node may be configured to transmit a status inquiry message to each other monitoring node, and each monitoring node may receive a status inquiry message from each other monitoring node. Each monitoring node may also generate a session message comprising status information, and a plurality of failover nodes may receive the generated session messages. A failover node may then determine whether a failover condition has occurred by applying a plurality of failover rules to the status information of the transmitted session message. Where the failover node determines that a failover condition has occurred, the failover node may activate another storage manager to take place of the presently assigned storage manager.

公开(公告)号：US20220245105A1

公开(公告)日：2022-08-04

申请号：US17725451

申请日：2022-04-20

Applicant: Commvault Systems, Inc.

Inventor： Deepak Raghunath ATTARDE ,  Manoj Kumar VIJAYAN

IPC: G06F16/215 ,  G06F16/27 ,  G06F16/22

Abstract: A deduplicated storage system is provided according to certain embodiments that uses one or more mechanisms to update the deduplication database and remove records corresponding to data blocks that have been or will be erased from the secondary copies, without using or tracking reference counting values. Some embodiments described herein use a secondary table to identify the corresponding records from the primary table that can be removed and/or moved to another table for storing “zero-reference” data blocks. In other embodiments, the system will then traverse the “zero-reference” table and remove those primary data blocks from secondary storage devices.

公开(公告)号：US20210209128A1

公开(公告)日：2021-07-08

申请号：US17188202

申请日：2021-03-01

Applicant: Commvault Systems, Inc.

Inventor： Marcus S. MULLER ,  Deepak Raghunath ATTARDE ,  Manoj Kumar VIJAYAN

IPC: G06F16/27

Abstract: Described are systems and methods for storing a variable number of instances of data objects (e.g., 1, 2, 3, or up to N−1 instances, where N is the number of instances of the data object included in primary data) in secondary storage across a data storage network. In some examples, a system for storing a variable number of instances of data objects includes, one or more computing devices storing a set of data objects and multiple storage devices distinct from the one or more computing devices. Each of the multiple storage devices is configured to store at least a single instance of a data object. The system also includes a database configured to store information associated with the data objects. This information includes substantially unique identifiers for the data objects and, for each of the data objects, a number of instances of the data object stored on the multiple storage devices.

公开(公告)号：US20210019295A1

公开(公告)日：2021-01-21

申请号：US16569428

申请日：2019-09-12

Applicant: Commvault Systems, Inc.

Inventor： Deepak Raghunath ATTARDE ,  Manoj Kumar VIJAYAN

IPC: G06F16/215 ,  G06F16/22 ,  G06F16/27

Abstract: A deduplicated storage system is provided according to certain embodiments that uses one or more mechanisms to update the deduplication database and remove records corresponding to data blocks that have been or will be erased from the secondary copies, without using or tracking reference counting values. Some embodiments described herein use a secondary table (for tracking archive file contents) and a bitmap to mark which primary records are present in the secondary table. In another embodiment, once the marking phase is completed, the deduplication system uses the marked-up bitmap to identify the corresponding records from the primary table that can be moved to another table for storing “zero-reference” data blocks. In other embodiments, the system will then traverse the “zero-reference” table and remove those primary data blocks from secondary storage devices.

公开(公告)号：US20210019294A1

公开(公告)日：2021-01-21

申请号：US16569385

申请日：2019-09-12

Applicant: Commvault Systems, Inc.

Inventor： Deepak Raghunath ATTARDE ,  Manoj Kumar VIJAYAN

IPC: G06F16/215 ,  G06F16/22

Abstract: A deduplicated storage system is provided according to certain embodiments that uses one or more mechanisms to update the deduplication database and remove records corresponding to data blocks that have been or will be erased from the secondary copies, without using or tracking reference counting values. Some embodiments described herein use a secondary table (for tracking archive file contents) and a bitmap to mark which primary records are present in the secondary table. In another embodiment, once the marking phase is completed, the deduplication system uses the marked-up bitmap to identify the corresponding records from the primary table that can be moved to another table for storing “zero-reference” data blocks. In other embodiments, the system will then traverse the “zero-reference” table and remove those primary data blocks from secondary storage devices.

公开(公告)号：US20200264966A1

公开(公告)日：2020-08-20

申请号：US16801704

申请日：2020-02-26

Applicant: CommVault Systems, Inc.

Inventor： Jaidev Oppath KOCHUNNI ,  Rajiv KOTTOMTHARAYIL ,  Manoj Kumar VIJAYAN

IPC: G06F11/34 ,  G06F11/14

Abstract: Data storage systems monitor the performance of data storage operations on a granular level and compile the information for presenting to a user. The system measures the time of execution for individual granular stages of the storage operation and in response to the monitoring results, automatically adjust parameters to optimize performance. Further, the system performs a performance test by simulating the data storage operation, but may not actually write the data to the secondary storage medium.

公开(公告)号：US20190205290A1

公开(公告)日：2019-07-04

申请号：US16234976

申请日：2018-12-28

Applicant: Commvault Systems, Inc.

Inventor： Manoj Kumar VIJAYAN ,  Jaidev Oppath KOCHUNNI ,  Saurabh AGRAWAL ,  Abhishek NARULKAR

IPC: G06F16/174 ,  G06F11/14

CPC classification number: G06F16/1748 ,  G06F11/1451 ,  G06F11/1453 ,  G06F2201/80 ,  G06F2201/84

Abstract: A high availability distributed, deduplicated storage system according to certain embodiments is arranged to include multiple deduplication database media agents. The deduplication database media agents store signatures of data blocks stored in secondary storage. In addition, the deduplication database media agents are configured as failover deduplication database media agents in the event that one of the deduplication database media agents becomes unavailable.