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公开(公告)号：US11347595B2
公开(公告)日：2022-05-31
申请号：US16700612
申请日：2019-12-02
发明人： Kedar Patwardhan , Wallun Chan , Dale Terrien
摘要： Backup operations on selected directories are performed in a computing system. File system operations that impact the ability to backup the selected directories are failed while other file system operations are allowed. In particular, file system operations that would require a trawl of the selected directory in order to perform the backup operation are failed.
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公开(公告)号：US20200019466A1
公开(公告)日：2020-01-16
申请号：US16036893
申请日：2018-07-16
发明人： Kedar Patwardhan , Kiran Dudala
摘要： A first snapshot of a primary disk of a virtual machine (VM) is requested at a beginning of a current backup cycle. A first indication that the first snapshot has been created includes a first listing of changed blocks since a last snapshot was requested. The first snapshot is deleted. Blocks listed in the first listing are copied while the first snapshot is absent. After the copying, a second snapshot is requested. A second indication that the second snapshot has been created includes a second listing of changed blocks since the first snapshot. Blocks listed in both the first and second listings are copied while the second snapshot is present.
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公开(公告)号：US20210073081A1
公开(公告)日：2021-03-11
申请号：US16700612
申请日：2019-12-02
发明人： Kedar Patwardhan , Wallun Chan , Dale Terrien
摘要： Backup operations on selected directories are performed in a computing system. File system operations that impact the ability to backup the selected directories are failed while other file system operations are allowed. In particular, file system operations that would require a trawl of the selected directory in order to perform the backup operation are failed.
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公开(公告)号：US11385804B2
公开(公告)日：2022-07-12
申请号：US16984522
申请日：2020-08-04
发明人： Kedar Patwardhan , Anand Ghatnekar
IPC分类号： G06F3/06
摘要： Systems and methods for adding backups to de-duplicated storage and for removing backups from de-duplicated storage are disclosed. Backups can be added to the de-duplicated storage with minimal reference count updates. Backup data sets can be removed without garbage collection processes being performed on the de-duplicated storage.
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公开(公告)号：US20190294508A1
公开(公告)日：2019-09-26
申请号：US16437924
申请日：2019-06-11
发明人： Kedar Patwardhan , Thomas Papadakis , Ernest Daza
摘要： Systems and methods for backing up data are disclosed. Changes made to a file system are tracked in a change log. When a backup operation is initiated, the changes identified in the change log are applied to the backup save sets. When a file associated with an event in the change log cannot be identified, the file is identified using the inode or other identifier. The event in the change log is then applied once the file is identified. The backup so achieved has eventual name space consistency and can be achieved without taking a snapshot of the file system.
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公开(公告)号：US10379962B1
公开(公告)日：2019-08-13
申请号：US15283550
申请日：2016-10-03
IPC分类号： G06F7/00 , G06F17/00 , G06F11/14 , G06F16/174
摘要： De-duplicating backup files based on data evolution is described. A system determines that a first backup file is created for a first data object, determines that the first data object is based on a second data object, and de-duplicates the first backup file based on a second backup file that was created for the second data object. The system determines that a third backup file is created for a third data object, determines that the third data object is based on the second data object, and de-duplicates the third backup file based on the second backup file that was created for the second data object.
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公开(公告)号：US10705756B2
公开(公告)日：2020-07-07
申请号：US16160341
申请日：2018-10-15
发明人： Kedar Patwardhan , Rajesh Nair
摘要： A method includes identifying a state of an application and taking a snapshot of application data. The method continues to generate a virtual filter input/output snapshot from I/O filter records for the snapshot. The filer records are generated by a filter driver that intercepts I/Os between the application and disks that store application data. The method further includes releasing the snapshot, resuming the application and performing a backup using the virtual filter I/O snapshot. Finally, the method triggers the filter driver to replace multiple filter driver records corresponding to the virtual filter I/O snapshot with data indicating the application data was backed up using the virtual filter I/O snapshot.
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公开(公告)号：US20200117365A1
公开(公告)日：2020-04-16
申请号：US16160341
申请日：2018-10-15
发明人： Kedar Patwardhan , Rajesh Nair
IPC分类号： G06F3/06
摘要： Embodiments are described for dynamically modifying backup policy of an application using changes in metrics of a data set generated by the application and/or user-specified rules. Each application can have its own backup policy having a protection level that determines a frequency of backup for the application data set. An application can have an initial backup policy. An application backup policy can be based on the application type, a percent of change to the data set since the last backup, a size of the data set, or other metric. A user can specify a rule for the backup policy and protection level for the application. The backup policy or protection level can be dynamically updated in response to changes in the data set or a user-specified rule, on a per-application basis.
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公开(公告)号：US10387381B1
公开(公告)日：2019-08-20
申请号：US15283567
申请日：2016-10-03
IPC分类号： G06F12/00 , G06F17/30 , G06F16/182 , G06F16/13 , G06F16/16
摘要： Data management using an open standard file system interface to a storage gateway is described. A system uses an open standard file system interface to instruct a storage gateway to create a directory, create a file for the directory, write information to the file, and store, based on the information written to the file, data to storage associated with the storage gateway.
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公开(公告)号：US10324805B1
公开(公告)日：2019-06-18
申请号：US15283538
申请日：2016-10-03
发明人： Kedar Patwardhan , Mangesh Nijasure
摘要： Targeted chunking of data is described. A system identifies a length of a sliding window that a data chunking routine applies to a data buffer to create data chunks. The system identifies an expected chunk boundary in the data buffer. The system adjusts the expected chunk boundary, based on the length of the sliding window. The system enables the data chunking routine to start applying the sliding window at the adjusted expected chunk boundary in the data buffer instead of starting application of the sliding window at a beginning of the data buffer.
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