公开(公告)号：US20230185785A1

公开(公告)日：2023-06-15

申请号：US18161592

申请日：2023-01-30

Applicant: Veritas Technologies LLC

Inventor： Xianbo Zhang ,  Jialun Liu ,  Weibao Wu

IPC: G06F16/215 ,  G06F16/23

CPC classification number: G06F16/215 ,  G06F16/2358

Abstract: Methods, computer program products, and computer systems for the management of data references in an efficient and effective manner are disclosed. Such methods, computer program products, and computer systems include receiving a change tracking stream at the computer system, identifying a data object group, and performing a deduplication management operation on the data object group. The change tracking stream is received from a client computing system. The change tracking stream identifies one or more changes made to a plurality of data objects of the client computing system. The identifying is based, at least in part, on at least a portion of the change tracking stream. The data object group represents the plurality of data objects.

公开(公告)号：US11327998B2

公开(公告)日：2022-05-10

申请号：US16731145

申请日：2019-12-31

Applicant: Veritas Technologies LLC

Inventor： Xianbo Zhang ,  Weibao Wu ,  Timothy Stevens ,  Shuangmin Zhang

IPC: G06F16/27 ,  G06F11/20 ,  G06F3/06 ,  G06F11/14 ,  H04L29/08 ,  H04L67/1095

Abstract: Disclosed herein are systems, methods, and processes to perform replication between heterogeneous storage systems. In one embodiment, a request to perform a replication operation is sent by a target server to a source server, where the target server and the source server use different protocols to store data. A plurality of instructions, which are associated with a replication stream, are received from the source server by the target server, where the plurality of instructions comprise an include instruction to include existing data and a write instruction to write new data. A replication stream, which is associated with a backup stream stored on the source server, is also received from the source server, where the replication stream and the backup stream share a common format. The target server synthesizes a new replicated backup image, where the synthesizing comprises performing the include instruction and the write instruction on the replication stream.

公开(公告)号：US10599524B2

公开(公告)日：2020-03-24

申请号：US15581320

申请日：2017-04-28

Applicant: Veritas Technologies LLC

Inventor： Shuangmin Zhang ,  Yongguo Yan ,  Xianbo Zhang ,  Kai Li ,  Weibao Wu ,  Shengzhao Li

IPC: G06F16/00 ,  G06F11/14 ,  G06F16/11

Abstract: Disclosed herein are methods, systems, and processes to improve backup performance after backup failure. It is determined whether a backup operation is successful. In response to a determination that the backup operation was unsuccessful, backup metadata associated with the backup operation is replaced with snapshot metadata associated with a snapshot that is taken at a first point in time that is prior to initiation of the backup operation. A rolled-back snapshot that permits another backup operation to be performed at a second point in time based on the snapshot metadata is then generated.

公开(公告)号：US09983796B2

公开(公告)日：2018-05-29

申请号：US14856586

申请日：2015-09-17

Applicant: Veritas Technologies LLC

Inventor： Yong Yang ,  Weibao Wu

IPC: G06F17/30 ,  G06F3/06 ,  G06F11/14

CPC classification number: G06F3/061 ,  G06F3/0656 ,  G06F3/067 ,  G06F11/14 ,  G06F17/30

Abstract: The disclosed computer-implemented method for provisioning frequently used image segments from caches may include (1) storing a representation and a use counter for an image segment that is hosted on a storage system in a list of representations and use counters for image segments hosted on the storage system, (2) incrementing a current value of the use counter for the image segment in the list of representations and use counters each time the image segment is provisioned from the storage system, (3) determining that the current value of the use counter for the image segment has met a predetermined threshold for frequent image-segment provisioning, (4) hosting the image segment in a cache that enables quicker provisioning than the storage system enables, and (5) provisioning the image segment from the cache in response to a request to provision the image segment. Various other methods, systems, and computer-readable media are also disclosed.

公开(公告)号：US09632877B1

公开(公告)日：2017-04-25

申请号：US13892449

申请日：2013-05-13

Applicant: Veritas Technologies LLC

Inventor： Zhuhua Yin ,  Weibao Wu ,  Yongguo Yan

IPC: G06F17/30 ,  G06F11/14

CPC classification number: G06F11/1469 ,  G06F11/1448 ,  G06F11/1471 ,  G06F2201/80

Abstract: The present disclosure describes implementing a virtual image file system, or IMGFS. A mount point directory is created in a local file system, where the local file system organizes files on a storage device. The mount point directory corresponds to a proxy backup image file stored on the storage device. The proxy backup image file stores an image file system. The image file system is mounted on the local file system at the mount point directory, using a virtual file system that implements an interface configured to access the image file system. In some embodiments, a notification is provided to a recovery manager that indicates the recovery manager should catalog one or more database files of the proxy backup image file. One or more database files can be restored to a second storage device, such as a group of physical disks that are managed as a single storage unit.

公开(公告)号：US09582194B2

公开(公告)日：2017-02-28

申请号：US14040152

申请日：2013-09-27

Applicant: Veritas Technologies LLC

Inventor： Yun Yang ,  Weibao Wu ,  Fanglu Guo ,  Satyajit Gorhe Parlikar

IPC: G06F12/00 ,  G06F3/06

CPC classification number: G06F3/061 ,  G06F3/0608 ,  G06F3/0619 ,  G06F3/0641 ,  G06F3/0646 ,  G06F3/065 ,  G06F3/0653 ,  G06F3/067 ,  G06F11/1453

Abstract: Techniques for improving performance of a backup system are disclosed. In one particular exemplary embodiment, the techniques may be realized as a method for improving performance of a backup system. The method may comprise performing a backup of a client device, tracking, using at least one computer processor, references to data segments that are located outside of a unit of storage associated with the backup, calculating utilization of the unit of storage associated with the backup based on the tracked references, determining if the calculated utilization meets a specified parameter, and determining one or more responsive actions in the event the calculated utilization meets the specified parameter.

Abstract translation: 公开了一种用于提高备份系统性能的技术。 在一个特定的示例性实施例中，这些技术可以被实现为用于提高备份系统的性能的方法。 该方法可以包括执行客户端设备的备份，使用至少一个计算机处理器跟踪参考位于与备份相关联的存储单元之外的数据段，计算与备份相关联的存储单元的利用率 基于所跟踪的参考，确定所计算的利用率是否满足指定参数，以及在所计算的利用率满足所述指定参数的情况下确定一个或多个响应动作。

公开(公告)号：US11829651B2

公开(公告)日：2023-11-28

申请号：US18158201

申请日：2023-01-23

Applicant: Veritas Technologies LLC

Inventor： Jialun Liu ,  Xianbo Zhang ,  Weibao Wu

IPC: G06F12/00 ,  G06F3/06

CPC classification number: G06F3/0659 ,  G06F3/0604 ,  G06F3/067 ,  G06F3/0629 ,  G06F3/0644

Abstract: Methods, computer program products, computer systems, and the like for efficient metadata management are disclosed, which can include determining whether a change in a status of data has occurred. In response to a determination that the change has occurred, such methods, computer program products, and computer systems can include determining whether a move condition has been met, and, in response to a determination that the move condition has been met, moving the metadata from the first storage unit to a second storage unit.

公开(公告)号：US10324628B2

公开(公告)日：2019-06-18

申请号：US15491626

申请日：2017-04-19

Applicant: Veritas Technologies LLC

Inventor： Shuangmin Zhang ,  Shengzhao Li ,  Xianbo Zhang ,  Kai Li ,  Weibao Wu

IPC: G06F13/00 ,  G06F3/06 ,  G06F16/903 ,  G06F16/23 ,  G06F11/14

Abstract: The disclosed computer-implemented method for reducing data fragmentation may include (1) identifying update data which updates an initial data set; (2) categorizing, using a database manager, the update data based on how the update data is expected to impact digital storage device resources; (3) storing the update data in a physical storage device in a physical order based on the category of the update data; and (4) updating, after storing the update data, an extent map indicating a mapping of logical locations of the update data to physical locations at which the update data is stored. Various other methods, systems, and computer-readable media are also disclosed.

公开(公告)号：US09946605B2

公开(公告)日：2018-04-17

申请号：US14952831

申请日：2015-11-25

Applicant: Veritas Technologies LLC

Inventor： Xianbo Zhang ,  Haigang Wang ,  Shuangmin Zhang ,  Jeffrey Van Voorst ,  Weibao Wu ,  Sameer Kulkarni ,  Nilesh Joshi ,  Kai Li ,  Yun Yang ,  Scott Brons

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

CPC classification number: G06F11/1453 ,  G06F3/0617 ,  G06F3/0641 ,  G06F3/0646 ,  G06F3/0683 ,  G06F17/30088 ,  G06F17/30156 ,  G06F17/30233 ,  G06F17/30371 ,  G06F2201/84

Abstract: A computer-implemented method for taking snapshots in a deduplicated virtual file system may include (1) maintaining a deduplicated virtual file system that stores, at an original location within a non-virtual file system, at least one configuration file storing metadata for a target file and an extent map for the target file, the extent map defining how to construct the target file from deduplicated data segments in a deduplicated storage system, (2) receiving a request to take a snapshot of the target file corresponding to the configuration file, (3) copying the configuration file storing metadata for the target file and the extent map for the target file into a snapshot location within the non-virtual file system, and (4) transmitting a file reference request to the deduplicated storage system to add a file reference within the deduplicated storage system. Various other methods, systems, and computer-readable media are also disclosed.

公开(公告)号：US12001411B2

公开(公告)日：2024-06-04

申请号：US18161592

申请日：2023-01-30

Applicant: Veritas Technologies LLC

Inventor： Xianbo Zhang ,  Jialun Liu ,  Weibao Wu

IPC: G06F16/00 ,  G06F16/215 ,  G06F16/23

CPC classification number: G06F16/215 ,  G06F16/2358

Abstract: Methods, computer program products, and computer systems for the management of data references in an efficient and effective manner are disclosed. Such methods, computer program products, and computer systems include receiving a change tracking stream at the computer system, identifying a data object group, and performing a deduplication management operation on the data object group. The change tracking stream is received from a client computing system. The change tracking stream identifies one or more changes made to a plurality of data objects of the client computing system. The identifying is based, at least in part, on at least a portion of the change tracking stream. The data object group represents the plurality of data objects.