公开(公告)号：US11467921B2

公开(公告)日：2022-10-11

申请号：US16886488

申请日：2020-05-28

Applicant: EMC IP Holding Company LLC

Inventor： Shelesh Chopra ,  Sunil Yadav ,  Amarendra Behera ,  Himanshu Arora ,  Tushar Dethe ,  Sapna Chauhan ,  Anjana Rao ,  Deependra Pratap Singh ,  Jigar Premajibhai Bhanushali ,  Ravi V. Chitloor

IPC: G06F11/14 ,  G06F21/62 ,  H04L51/42

Abstract: A system for providing backup services for limited-access user data includes persistent storage for storing a user data visualization enhanced user data backup and a manager. The manager identifies a backup generation event for limited-access user data based on a protection policy; in response to identifying the backup generation event, obtains fragmented user data from an application that gates access to the limited-access user data; obtains organizational metadata associated with the fragmented user data from the application; makes a determination that the fragmented user data is associated with a user data visualization; in response to making the determination, obtains user data visualization metadata associated with the fragmented user data from the application; and generates the user data enhanced user data backup using the organizational metadata, the user data visualization metadata, and the fragmented user data.

公开(公告)号：US11442822B1

公开(公告)日：2022-09-13

申请号：US17229170

申请日：2021-04-13

Applicant: EMC IP Holding Company LLC

Inventor： Shelesh Chopra ,  Sunil Yadav ,  Amarendra Behera ,  Ravi Vijayakumar Chitloor ,  Himanshu Arora ,  Tushar Dethe ,  Deependra Singh ,  Prabhat Kumar Dubey ,  Anjana Rao ,  Sapna Chauhan

IPC: G06F11/10 ,  G06F11/14 ,  G06F16/16

Abstract: In some embodiments, described is a system (and method) for providing an efficient preview capability for emails backed up to a cloud-based object storage. The email preview may be provided as part of an interface allowing a user to select individual emails to restore from the object storage. The system may extract specialized preview information as part of a backup procedure. The preview information may include metadata and email content. For example, the preview information may include various email details such as sender, receiver, subject line, time sent/received, filenames of any attachments, etc. The preview information may also include email content such as particular sentences from the email body containing keywords. The system may also store extracted preview information in a specialized manner such that the preview information may be retrieved without having to access the actual backup data.

公开(公告)号：US11442819B2

公开(公告)日：2022-09-13

申请号：US17150199

申请日：2021-01-15

Applicant: EMC IP Holding Company LLC

Inventor： Shelesh Chopra ,  Sunil Yadav ,  Amarendra Behera ,  Ravi Vijayakumar Chitloor ,  Himanshu Arora ,  Tushar Dethe ,  Jigar Bhanushali ,  Deependra Singh ,  Prabhat Kumar Dubey

IPC: G06F11/14

Abstract: Described is a system (and method) for managing specialized metadata that may be used to manage and search incremental backup data stored on a cloud-based object storage. The system may create and store such metadata as part of a specialized metadata database that includes a data catalog and a backup catalog. The system may leverage the metadata database to initiate operations to efficiently manage incremental backup data stored on the object storage. For example, the metadata may be relied upon to efficiently reconstruct (e.g. synthetically) the client data to a point-in-time of any incremental backup. In addition, the metadata may include properties of the backed-up data, which are maintained separately from the backup data stored as objects. Accordingly, these properties may be searched to identify and locate backup data without having to retrieve the stored objects.

公开(公告)号：US20220229735A1

公开(公告)日：2022-07-21

申请号：US17150199

申请日：2021-01-15

Applicant: EMC IP Holding Company LLC

Inventor： Shelesh Chopra ,  Sunil Yadav ,  Amarendra Behera ,  Ravi Vijayakumar Chitloor ,  Himanshu Arora ,  Tushar Dethe ,  Jigar Bhanushali ,  Deependra Singh ,  Prabhat Kumar Dubey

IPC: G06F11/14

Abstract: Described is a system (and method) for managing specialized metadata that may be used to manage and search incremental backup data stored on a cloud-based object storage. The system may create and store such metadata as part of a specialized metadata database that includes a data catalog and a backup catalog. The system may leverage the metadata database to initiate operations to efficiently manage incremental backup data stored on the object storage. For example, the metadata may be relied upon to efficiently reconstruct (e.g. synthetically) the client data to a point-in-time of any incremental backup. In addition, the metadata may include properties of the backed-up data, which are maintained separately from the backup data stored as objects. Accordingly, these properties may be searched to identify and locate backup data without having to retrieve the stored objects.

公开(公告)号：US20220214946A1

公开(公告)日：2022-07-07

申请号：US17140855

申请日：2021-01-04

Applicant: EMC IP Holding Company LLC

Inventor： Sunil Yadav ,  Shelesh Chopra ,  Amarendra Behera ,  Tushar Dethe ,  Himanshu Arora ,  Deependra Singh ,  Jigar Bhanushali ,  Prabhat Kumar Dubey ,  Ravi Vijayakumar Chitloor

IPC: G06F11/14 ,  G06F9/54 ,  G06F16/23 ,  G06F21/62

Abstract: Described is a system for managing backup data stored on a cloud-based object storage irrespective of the storage provider. The system may include a server (or gateway) that provides a backup service, and acts as an intermediary between a client device and object storage. To provide such capabilities, the system may manage an application programming interface (API) that provides a uniform set of methods to a client device irrespective of the destination object storage provider. A function library may include provider-specific functions that invoke corresponding storage-layer operations provided by the destination object storage. The server may also manage an operation pool to schedule operations and saturate bandwidth to the object storage. The server may also implement a specialized metadata database to provide further storage efficiencies by storing certain backup data exclusively within the metadata database.

公开(公告)号：US11340824B1

公开(公告)日：2022-05-24

申请号：US17141475

申请日：2021-01-05

Applicant: EMC IP Holding Company LLC

Inventor： Sunil Yadav ,  Ravi Vijayakumar Chitloor ,  Shelesh Chopra ,  Amarendra Behera ,  Tushar Dethe ,  Jigar Bhanushali ,  Deependra Singh ,  Himanshu Arora ,  Prabhat Kumar Dubey

IPC: G06F3/06 ,  H04L67/1097 ,  G06F16/23

Abstract: Described is a system (and method) for efficient object storage management when backing up data to a cloud-based object storage. The system may be implemented as part of a server (or gateway) that provides a backup service to a client device by acting as an intermediary when backing up data from the client device to a third-party cloud-based object storage. The system may implement various specialized procedures to efficiently store backup data as objects within the object storage. The procedures may include packing client data into objects of a consistent size to improve storage performance. The system may also improve storage performance and conserve storage by analyzing the data stored within an object and reallocating the data as necessary. More particularly, the system may efficiently reallocate data to new objects when the amount of live data within an object falls below a predetermined threshold.

公开(公告)号：US20210191821A1

公开(公告)日：2021-06-24

申请号：US16886466

申请日：2020-05-28

Applicant: EMC IP Holding Company LLC

Inventor： Sunil Yadav ,  Shelesh Chopra ,  Tushar Dethe ,  Jigar Premajibhai Bhanushali ,  Sapna Chauhan ,  Deependra Pratap Singh ,  Himanshu Arora ,  Anjana Rao ,  Amarendra Behera ,  Ravi V. Chitloor

IPC: G06F11/14

Abstract: A system for providing backup services for limited-access user data includes persistent storage for storing a conversation specific user data backup and a manager. The manager identifies a backup generation event for limited-access user data based on a protection policy; in response to identifying the backup generation event; obtains fragmented user data from an application that gates access to the limited-access user data; obtains organizational metadata associated with the fragmented user data from the application; makes a determination that the fragmented user data is associated with a conversation; in response to making the determination, obtains conversation metadata associated with the fragmented user data from the application; and generates the conversation specific user data backup using the organizational metadata, conversation metadata, and the fragmented user data.

公开(公告)号：US20210133044A1

公开(公告)日：2021-05-06

申请号：US16672303

申请日：2019-11-01

Applicant: EMC IP Holding Company LLC

Inventor： Asif Khan ,  Amith Ramachandran ,  Amarendra Behera ,  Deepika Nagabushanam ,  Ashish Kumar ,  Pati Mohan ,  Tushar Dethe ,  Himanshu Arora ,  Gururaj Soma ,  Sapna Chauhan ,  Soumen Acharya ,  Reshmee Jawed ,  Yasemin Ugur-Ozekinci ,  Shelesh Chopra ,  Navneet Upadhyay ,  Shraddha Chunekar

IPC: G06F11/14 ,  G06F11/32

Abstract: A backup manager for managing backup services includes persistent storage and a backup analyzer. The persistent storage includes a backup data repository and protection policies. The backup analyzer identifies a new backup stored in backup storage; performs a backup compatibility analysis on the new backup to determine inter-backup compatibility of the identified new backup; updates the backup data repository based on the inter-backup compatibility to obtain an updated backup data repository; and modifies a backup schedule using the updated backup data repository to meet a requirement of a protection policy of the protection policies.

公开(公告)号：US10860427B1

公开(公告)日：2020-12-08

申请号：US15390392

申请日：2016-12-23

Applicant: EMC IP Holding Company LLC

Inventor： Anupam Chakraborty ,  Sunil Yadav ,  Satyendra Nath Sharma ,  Soumen Acharya ,  Tushar Dethe ,  Upanshu Singhal

IPC: G06F11/14

Abstract: A cluster includes cluster shared volumes and nodes. A subset of the nodes are designated as being backup proxy nodes responsible for backing up the cluster shared volumes. The cluster shared volumes are divided into groups, each group having a number of cluster shared volumes that is less than a total number of cluster shared volumes in the cluster. Generation is initiated for a particular snapshot for a number of cluster shared volumes belonging to a particular group. The backup proxy nodes backup data from the particular cluster shared volumes belong to the particular group using the particular snapshot. After the backup, the steps initiating snapshot generation and backing up are repeated until each group of cluster shared volumes has been backed up.

公开(公告)号：US10664357B1

公开(公告)日：2020-05-26

申请号：US15384998

申请日：2016-12-20

Applicant: EMC IP Holding Company LLC

Inventor： Shubhashish Mallik ,  Tushar Dethe ,  Anupam Chakraborty

IPC: G06F16/00 ,  G06F11/14 ,  G06F9/455

Abstract: Embodiments are directed to a method of backing up virtual machines coupled to a backup server in a large-scale data storage system, by installing a single instance of a backup management program on the backup server; pushing, by the backup management program, a backup agent to each virtual machine; detecting, through the backup agent, all applications running on a respective virtual machine; taking a snapshot of each application after freezing the applications and prior to thawing the applications, by the backup agent; and saving the snapshot of the each applications on a storage medium. The pushing step comprises creating a shared folder and exposing the shared folder to all the virtual machines for remote invocation by the backup program.