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公开(公告)号：US12056018B2
公开(公告)日：2024-08-06
申请号：US17843750
申请日：2022-06-17
发明人： Chandresh Sharma , Saurabh Agrawal , Brahmaiah Vallabhaneni , Hetal Kapadia , Manoj Kumar Vijayan
IPC分类号： G06F11/14
CPC分类号： G06F11/1464 , G06F11/1451 , G06F11/1469 , G06F2201/80
摘要： A disclosed framework enables virtually any aggressive Recovery Point Objective (RPO) to be enforced for a production database, without limitation on type of database management system (DBMS) or size of the production database. The framework overcomes technological barriers of the prior art, such as bottlenecks presented by a storage manager computer that traditionally managed database backups. To avoid the bottlenecks, an illustrative data storage management system does not engage the storage manager computer in storage operations that could impact the database RPO. Certain components are added and enhanced to autonomously capture database transaction logs, which are stored securely and persistently away from the DBMS. In a separate and less frequent operation, and with involvement of the storage manager computer, the illustrative system generates secondary copies in their final form. Meanwhile, temporary backup files can be used in restore operations without first being converted into secondary copies.
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公开(公告)号：US11681587B2
公开(公告)日：2023-06-20
申请号：US17214628
申请日：2021-03-26
IPC分类号： G06F11/14 , G06F16/17 , G06F16/174
CPC分类号： G06F11/1453 , G06F11/1458 , G06F16/174 , G06F2201/84
摘要： Illustrative storage manager and media agent are enhanced to interoperate with deduplication appliances. Advantages are realized when making secondary and tertiary copies and also when restoring from a deduplication appliance. Tiered indexing minimizes how much data is retained and stored at media agents. Tiered indexing enables media agents to efficiently extract needed information from deduplication appliances to make tertiary copies and to restore backed up copies. Interoperability techniques include media agents generating separate data streams to the deduplication appliance. Each data stream carries a different kind of data, e.g., payload data, metadata content, or high-level index information. On initial backup, the media agent instructs the deduplication appliance to deduplicate the payload data stream but not the other data streams, thus intelligently applying resources to data most likely to benefit from deduplication. For tertiary copies (copies of pre-existing copies at the deduplication appliance), the media agent avoids handling payload data altogether.
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公开(公告)号：US11645175B2
公开(公告)日：2023-05-09
申请号：US17175259
申请日：2021-02-12
CPC分类号： G06F11/2092 , G06F11/1451 , G06F2201/82
摘要： 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 an offline storage manager to replace the active storage manager.
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公开(公告)号：US11593217B2
公开(公告)日：2023-02-28
申请号：US17233187
申请日：2021-04-16
IPC分类号： G06F11/14 , G06F16/174
摘要： 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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公开(公告)号：US11550680B2
公开(公告)日：2023-01-10
申请号：US17511208
申请日：2021-10-26
摘要： An illustrative data storage management system is aware that certain data storage resources for storing/serving primary data operate in a partnered configuration. Illustrative components of the data storage management system analyze the failover status of the partnered primary data storage resources to determine which is currently serving/storing primary data and/or snapshots targeted for backup. When detecting that a first partnered primary data storage resource has failed over to a second primary data storage resource, the example storage manager changes the assignment of backup resources that are pre-administered for the targeted data. Accordingly, the example storage manager assigns backup resources, including at least one media agent, that are associated with the second primary data storage resource, and which are “closer” thereto from a geography and/or network topology perspective, even if the pre-administered backup resources are available for backup.
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公开(公告)号：US20220245034A1
公开(公告)日：2022-08-04
申请号：US17165266
申请日：2021-02-02
发明人： Prasad Nara , Manoj Kumar Vijayan , Ho-Chi Chen
摘要： Presented herein are systems and methods for backing up and restoring related backup data stored in different cloud storage tiers in a cloud storage environment. Backup data generated during a backup job is stored to different cloud storage tiers based on the type of data and a storage policy comprising designations of a first cloud storage tier and a second cloud storage tier. Backup metadata and index data is stored in the designated first cloud storage tier and backup payload data is stored in the designated second cloud storage tier. Designations of the storage tiers are based on the attributes associated with each tier of cloud storage. During restore, the backup payload data is recalled from the second storage tier into the first storage tier where it is used to restore to the destination client or customer.
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公开(公告)号：US11347408B2
公开(公告)日：2022-05-31
申请号：US17122604
申请日：2020-12-15
IPC分类号： H04L29/08 , G06F3/06 , H04L67/1097
摘要： Techniques for providing shared access to, e.g., a small computer system interface (SCSI) storage device in a computer network include providing an operational mode on SCSI interfaces with a first media agent and a second media agent such that, in response to inquiry messages on the SCSI interfaces, the SCSI storage device appears as a SCSI target device to the first media agent and the second media agent and mapping data operations between the first media agent and the SCSI storage device and the second media agent and the SCSI storage device to logically unique channel numbers for the first media agent and the second media agent to perform data storage operations over their respective SCSI interfaces by concurrently sharing the SCSI storage device.
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公开(公告)号：US11228647B2
公开(公告)日：2022-01-18
申请号：US16789848
申请日：2020-02-13
发明人： Manoj Kumar Vijayan , Srikant Viswanathan , Deepak Raghunath Attarde , Varghese Devassy , Rajiv Kottomtharayil
摘要： 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.
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公开(公告)号：US20210374018A1
公开(公告)日：2021-12-02
申请号：US17399519
申请日：2021-08-11
摘要： Multiple data paths may be available to a data management system for transferring data between a primary storage device and a secondary storage device. The data management system may be able to gain operational advantages by performing load balancing across the multiple data paths. The system may use application layer characteristics of the data for transferring from a primary storage to a backup storage during data backup operation, and correspondingly from a secondary or backup storage system to a primary storage system during restoration.
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公开(公告)号：US20210318933A1
公开(公告)日：2021-10-14
申请号：US17356105
申请日：2021-06-23
发明人： Manoj Kumar Vijayan
摘要： The disclosed techniques enable browsing of data items that are stored in a backup storage system in a backup format. A search query from a user is received where the search query is for a data item stored in a data storage system, such as a tape drive, a disk array, or a cloud-based storage system. The system may use an index to look up a location of the data item and data format of the data item. To present the data to the user, the system may perform a restoration operation to convert the data format to a format that can be presented to the user.
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