公开(公告)号：US10061535B2

公开(公告)日：2018-08-28

申请号：US14992408

申请日：2016-01-11

Applicant: Commvault Systems, Inc.

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

IPC: G06F7/00 ,  G06F17/30 ,  G06F3/06 ,  G06F11/14 ,  G11B5/86

CPC classification number: G06F3/065 ,  G06F3/061 ,  G06F3/0638 ,  G06F3/067 ,  G06F11/1453 ,  G06F16/1748 ,  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.

公开(公告)号：US09940059B2

公开(公告)日：2018-04-10

申请号：US15197385

申请日：2016-06-29

Applicant: CommVault Systems, Inc.

Inventor： Saurabh Agrawal ,  Manoj Kumar Vijayan

IPC: G06F3/06 ,  H04L29/08 ,  G06F17/30

CPC classification number: G06F17/30303 ,  G06F3/0641 ,  G06F11/00 ,  G06F11/14 ,  G06F11/1464 ,  G06F17/3015 ,  G06F17/30159 ,  G06F17/30174 ,  G06F17/30371 ,  G06F21/6218 ,  G06F2201/84 ,  H04L67/1097

Abstract: An information management system provides a data deduplication system that uses a primary table, a deduplication chunk table, and a chunk integrity table to ensure that a referenced deduplicated data block is only verified once during the data verification of a backup or other replication operation. The data deduplication system may reduce the computational and storage overhead associated with traditional data verification processes. The primary table, the deduplication chunk table, and the chunk integrity table, all of which are stored in a deduplication database, can also ensure synchronization between the deduplication database and secondary storage devices.

公开(公告)号：US20180067654A1

公开(公告)日：2018-03-08

申请号：US15682245

申请日：2017-08-21

Applicant: Commvault Systems, Inc.

Inventor： Manoj Kumar Vijayan ,  Rajiv Kottomtharayil ,  Jaidev Oppath Kochunni

IPC: G06F3/06

CPC classification number: G06F3/0608 ,  G06F3/0605 ,  G06F3/0631 ,  G06F3/0644 ,  G06F3/0659 ,  G06F3/0686

Abstract: The library server according to certain aspects can manage the use of tape drives according to the data requirements of different storage operation cells. The library server according to certain aspects can also facilitate automatic management of tape media in a tape library by allocating the tapes and slots to different cells. For instance, the library server can manage the positioning and placement of the tapes into appropriate slots within the tape library.

公开(公告)号：US09811423B2

公开(公告)日：2017-11-07

申请号：US14152880

申请日：2014-01-10

Applicant: CommVault Systems, Inc.

Inventor： Manoj Kumar Vijayan ,  Deepak Raghunath Attarde

IPC: G06F17/00 ,  G06F11/14 ,  G06F11/20

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

Abstract: The data storage system according to certain aspects can implement partial file restore, where only a portion of the secondary copy of a file is restored. Such portion may be designated by one or more application offsets for the file. The system may provide an in-chunk index that includes mapping information between the application offsets and the secondary copy offsets. Chunks may refer to logical data units in which secondary copies are stored, and the in-chunk index for a chunk may be stored in secondary storage with the chunk. Because the mapping information may not be provided at a fixed interval, the system can search through application offsets in the in-chunk index to locate the secondary copy offset corresponding to the portion application offset(s). In this manner, the system may restore the designated portion of the secondary copy in a fast and efficient manner by using the in-chunk index.

公开(公告)号：US20170090773A1

公开(公告)日：2017-03-30

申请号：US15282668

申请日：2016-09-30

Applicant: Commvault Systems, Inc.

Inventor： Manoj Kumar Vijayan ,  Joe Sabu Thyvelikkakakth Job

IPC: G06F3/06

Abstract: An information management system according to certain aspects uses backup copies or other secondary copies of production data for the purposes of replicating production data to another client. The secondary copies can be deduplicated copies. By utilizing available secondary copies of the data for replication, the system can reduce the impact on the production machines associated with replication. Utilizing deduplicated copies not only reduces the amount of stored data, but also reduces the amount of data that is communicated between the source and the destination, increasing the speed of the replication process.

公开(公告)号：US20170083408A1

公开(公告)日：2017-03-23

申请号：US15364954

申请日：2016-11-30

Applicant: Commvault Systems, Inc.

Inventor： Manoj Kumar Vijayan

IPC: G06F11/14 ,  G06F17/30

CPC classification number: G06F17/30073 ,  G06F11/1451 ,  G06F11/1453 ,  G06F11/1469 ,  G06F17/30156 ,  G06F17/30159

Abstract: The disclosed techniques that can use deduplication information on a source computer platform to improve the process of performing data backups or restoration from/to the computer platform. In one example aspect, a data backup operation can re-use some of the work already done by a source computer's deduplication system. For example, a storage operation could read a deduplication database on the source computer platform to determine the duplicativeness of a given data chunk being transferred to a backup storage system, without having to perform computations such as data chunk hashing and comparison with previously generated hashes. The technique may additionally or alternatively reuse hashes generated by the source computer during deduplication of the data file on the source computer's file system during deduplication at the external backup storage system.

公开(公告)号：US20170039218A1

公开(公告)日：2017-02-09

申请号：US15258252

申请日：2016-09-07

Applicant: Commvault Systems, Inc.

Inventor： Anand Prahlad ,  Marcus S. Muller ,  Rajiv Kottomtharayil ,  Srinivas Kavuri ,  Parag Gokhale ,  Manoj Kumar Vijayan

IPC: G06F17/30 ,  H04L29/08 ,  H04L29/06

CPC classification number: G06F17/30156 ,  G06F3/0605 ,  G06F3/0631 ,  G06F3/0667 ,  G06F3/067 ,  G06F11/3485 ,  G06F17/3002 ,  G06F17/30082 ,  G06F17/302 ,  G06F17/30215 ,  G06F2003/0697 ,  G06Q30/02 ,  G06Q30/0206 ,  G06Q50/188 ,  H04L63/0428 ,  H04L67/02 ,  H04L67/06 ,  H04L67/1095 ,  H04L67/1097 ,  H04L67/22 ,  H04L67/28 ,  H04L67/2852 ,  H04L69/08

Abstract: Data storage operations, including content-indexing, containerized deduplication, and policy-driven storage, are performed within a cloud environment. The systems support a variety of clients and cloud storage sites that may connect to the system in a cloud environment that requires data transfer over wide area networks, such as the Internet, which may have appreciable latency and/or packet loss, using various network protocols, including HTTP and FTP. Methods are disclosed for content indexing data stored within a cloud environment to facilitate later searching, including collaborative searching. Methods are also disclosed for performing containerized deduplication to reduce the strain on a system namespace, effectuate cost savings, etc. Methods are disclosed for identifying suitable storage locations, including suitable cloud storage sites, for data files subject to a storage policy. Further, systems and methods for providing a cloud gateway and a scalable data object store within a cloud environment are disclosed, along with other features.

Abstract translation: 在云环境中执行数据存储操作，包括内容索引，容器重复数据消除和策略驱动存储。 该系统支持各种客户端和云存储站点，可在云环境中连接到系统，该环境需要使用各种网络协议在可能具有可观的延迟和/或分组丢失的广域网（例如Internet）上进行数据传输 ，包括HTTP和FTP。 公开了存储在云环境中的内容索引数据的方法，以便于以后的搜索，包括协作搜索。 还公开了用于执行集装式重复数据消除以减少系统命名空间的压力，实现成本节约等的方法。为了识别存储策略的数据文件，为了识别合适的存储位置（包括合适的云存储站点）而公开了方法。 此外，公开了在云环境中提供云网关和可扩展数据对象存储的系统和方法以及其他特征。

公开(公告)号：US20170024286A1

公开(公告)日：2017-01-26

申请号：US15282526

申请日：2016-09-30

Applicant: Commvault Systems, Inc.

Inventor： Manoj Kumar Vijayan

IPC: G06F11/14 ,  G06F17/30

Abstract: The disclosed techniques include generation of a single index table when backing up data in a first backup format to a backup storage system that uses a second backup format. Using the single index table, a query for a data item can be answered by searching the single index table. The single index table avoids having to search through multiple index tables, each corresponding to a different backup format that may be used for backing up the searched data item.

Abstract translation: 所公开的技术包括在以第一备份格式备份数据到使用第二备份格式的备份存储系统时生成单个索引表。 使用单个索引表，可以通过搜索单个索引表来回答对数据项的查询。 单个索引表避免必须搜索多个索引表，每个索引表对应于可用于备份搜索的数据项的不同备份格式。

公开(公告)号：US09495251B2

公开(公告)日：2016-11-15

申请号：US14163876

申请日：2014-01-24

Applicant: CommVault Systems, Inc.

Inventor： Rajiv Kottomtharayil ,  Manoj Kumar Vijayan ,  Vimal Kumar Nallathambi ,  Unmil Vinay Tambe

IPC: G06F12/00 ,  G06F11/14

CPC classification number: G06F17/30088 ,  G06F11/00 ,  G06F11/1448 ,  G06F11/1458 ,  G06F2201/805 ,  G06F2201/84

Abstract: An information management system according to certain aspects may determine whether snapshot operations will work prior to executing them. The system may check various factors or parameters relating to a snapshot storage policy to verify whether the storage policy will work at runtime without actually executing the policy. Some examples of factors can include: availability of primary storage devices for which a snapshot should be obtained, availability of secondary storage devices, license availability for snapshot software, user credentials for connecting to primary and/or second storage devices, available storage capacity, connectivity to storage devices, etc. The system may also check whether a particular system configuration is supported in connection with snapshot operations. The result of the determination can be provided in the form of a report summarizing any problems found with the snapshot storage policy. The report can include recommended courses of action or solutions for resolving any identified issues.

Abstract translation: 根据某些方面的信息管理系统可以确定快照操作在执行之前是否工作。 系统可以检查与快照存储策略相关的各种因素或参数，以验证存储策略是否在运行时工作，而不实际执行策略。 一些因素可能包括：应获取快照的主存储设备的可用性，辅助存储设备的可用性，快照软件的许可证可用性，用于连接到主存储设备和/或第二存储设备的用户凭据，可用存储容量，连接性 到存储设备等。系统还可以检查是否支持与快照操作有关的特定系统配置。 可以以总结形式的报告的形式提供确定结果，其中概述了快照存储策略中发现的任何问题。 该报告可以包括建议的行动方案或解决任何确定问题的解决方案。

公开(公告)号：US20160306707A1

公开(公告)日：2016-10-20

申请号：US15197434

申请日：2016-06-29

Applicant: CommVault Systems, Inc.

Inventor： Manoj Kumar Vijayan ,  Ganesh Haridas ,  Deepak Raghunath Attarde

IPC: G06F11/14 ,  G06F17/30

Abstract: According to certain aspects, a method can include receiving, in response to an indication that a data storage database is being restored to a second time before a first time such that the data storage database comprises a plurality of first archive file identifiers associated at the second time, a first instruction from a data storage computer, where the first instruction instructs a media agent to stop scheduled secondary storage operations associated with a deduplication database, and where the deduplication database comprises a plurality of second archive file identifiers; determining at least one second archive file identifier in the plurality of second archive file identifiers that does not correlate with any first archive identifier in the plurality of first archive file identifiers; and, for each of the at least one second archive identifier, instructing the deduplication database to prune an entry associated with the respective second archive file identifier.

Abstract translation: 根据某些方面，一种方法可以包括响应于在第一时间之前第二次恢复数据存储数据库的指示，使得数据存储数据库包括在第二时间相关联的多个第一归档文件标识符 时间，来自数据存储计算机的第一指令，其中第一指令指示媒体代理停止与重复数据删除数据库相关联的调度的辅助存储操作，并且其中重复数据删除数据库包括多个第二归档文件标识符; 确定与所述多个第一存档文件标识符中的任何第一归档标识符不相关的所述多个第二归档文件标识符中的至少一个第二归档文件标识符; 并且对于所述至少一个第二存档标识符中的每一个，指示重复数据删除数据库修剪与相应的第二归档文件标识符相关联的条目。