公开(公告)号：US20180218000A1

公开(公告)日：2018-08-02

申请号：US15635353

申请日：2017-06-28

申请人： Microsoft Technology Licensing, LLC

发明人： Srinath Tumkur Venkatachala SETTY

IPC分类号： G06F17/30

CPC分类号： G06F16/128 ,  G06F16/164 ,  G06F16/28

摘要： Techniques for a fast snapshot of application data in a storage system are disclosed. One computer-implemented method includes: receiving, over an electronic communications network, a first command to create a table; creating, in a storage system, the table including at least one row and a plurality of columns, the at least one row including a special metadata row, and fields of the plurality of columns including a key, a payload, a snapshot identifier number, a delete bit, a version identifier, and an entity tag; and initializing a key of the special metadata row and a payload of the special metadata row. The key of the special metadata row is initialized to a snapshot identifier, and the payload of the special metadata row is initialized to zero, and an entity tag of the special metadata row is initialized to a random value.

公开(公告)号：US10013425B1

公开(公告)日：2018-07-03

申请号：US15086751

申请日：2016-03-31

申请人： EMC IP Holding Company LLC

发明人： Ivan Bassov

IPC分类号： G06F17/30 ,  G06F3/06

CPC分类号： G06F16/1727 ,  G06F3/0608 ,  G06F3/0631 ,  G06F3/0643 ,  G06F3/0689 ,  G06F16/128

摘要： A method of operating a DSS to provision space on a volume on which a filesystem and its snapshots rest, having thin and thick files. It includes (a) receiving a reservation-altering storage command, (b) calculating a volume liability by summing together (1) a total number of allocated data blocks stored on the volume and (2) a maximum value, over each of the filesystem and the snapshots, of a difference between (A) a count of guaranteed thick blocks for that filesystem or snapshot based on a count received from the filesystem including a sum, over each thick file on the filesystem, of data blocks guaranteed to that file and (B) a number of uncompressed mapped data blocks marked as thick by the filesystem for that filesystem or snapshot, and (c) providing a number of blocks of backing store for the volume equal to at least the calculated volume liability.

公开(公告)号：US20180181578A1

公开(公告)日：2018-06-28

申请号：US15638330

申请日：2017-06-29

申请人： EMC IP Holding Company LLC

发明人： Mikhail Danilov ,  Nikita Gutsalov ,  Ivan Tchoub ,  Alexander Federov ,  Sergey Koyushev

IPC分类号： G06F17/30 ,  H04L29/08

CPC分类号： G06F16/119 ,  G06F16/128 ,  G06F16/214 ,  G06F16/2443 ,  G06F16/2453 ,  G06F16/951 ,  H04L67/06 ,  H04L67/1097

摘要： A transformation service is provided for a plurality of transformation jobs associated with one or more storage containers. A single transformation user runs enumeration tasks associated with data stored in the one or more storage containers. When two or more of the plurality of transformation jobs are active during a time interval, the single transformation user runs an enumeration task for all of the active transformation jobs during said time interval.

公开(公告)号：US10007445B2

公开(公告)日：2018-06-26

申请号：US14628041

申请日：2015-02-20

申请人： RUBRIK, INC.

发明人： Arvind Nithrakashyap ,  Jayanth Madheswaran ,  Arvind Jain ,  Soham Mazumdar ,  Jonathan Derryberry

IPC分类号： G06F3/00 ,  G06F3/06 ,  H04L9/32 ,  G06F9/455 ,  G06F9/50 ,  G06F11/14 ,  G06F17/30 ,  H04L12/26 ,  H04L29/12 ,  H04L29/08 ,  G06F11/20

CPC分类号： G06F3/0619 ,  G06F3/0641 ,  G06F3/065 ,  G06F3/0665 ,  G06F3/067 ,  G06F3/0685 ,  G06F9/45558 ,  G06F9/5077 ,  G06F11/1435 ,  G06F11/1446 ,  G06F11/1448 ,  G06F11/1451 ,  G06F11/1453 ,  G06F11/1458 ,  G06F11/1461 ,  G06F11/1464 ,  G06F11/1484 ,  G06F11/202 ,  G06F16/113 ,  G06F16/128 ,  G06F16/13 ,  G06F16/148 ,  G06F16/27 ,  G06F16/84 ,  G06F2009/45562 ,  G06F2009/4557 ,  G06F2009/45579 ,  G06F2009/45583 ,  G06F2201/80 ,  G06F2201/815 ,  G06F2201/84 ,  H04L9/3242 ,  H04L9/3247 ,  H04L43/0817 ,  H04L61/2007 ,  H04L61/2061 ,  H04L67/10

摘要： Methods and systems for managing, storing, and serving data within a virtualized environment are described. In some embodiments, a data management system may manage the extraction and storage of virtual machine snapshots, provide near instantaneous restoration of a virtual machine or one or more files located on the virtual machine, and enable secondary workloads to directly use the data management system as a primary storage target to read or modify past versions of data. The data management system may allow a virtual machine snapshot of a virtual machine stored within the system to be directly mounted to enable substantially instantaneous virtual machine recovery of the virtual machine.

公开(公告)号：US20180150477A1

公开(公告)日：2018-05-31

申请号：US15824639

申请日：2017-11-28

申请人： Open Text SA ULC

发明人： Brian Alexander Jewell ,  Jinshan Yang

IPC分类号： G06F17/30 ,  H04L29/08

CPC分类号： G06F16/1787 ,  G06F16/128 ,  G06F16/172 ,  G06F16/1734 ,  H04L67/1095

摘要： One embodiment of a system comprises a client computer and a remote content management system. The client computer comprises a synchronization manager that maintains a remote virtual model that models a synchronization state of a remote peer data resource at the content management system and a local virtual model that models a synchronization state of a local peer data resource in the local file system. The synchronization manager determines that the remote peer data resource and local peer data resource are out of sync based on a comparison of the remote virtual model and the local virtual model and synchronizes changes from the local cache to the content management system to update the remote peer data resource or changes from the content management system to update the local peer data resource.

公开(公告)号：US20180137014A1

公开(公告)日：2018-05-17

申请号：US15354984

申请日：2016-11-17

申请人： VMware, Inc.

发明人： Cheng Li ,  Li Ding ,  Bret Needle ,  Mayank Rawat

IPC分类号： G06F11/14 ,  G06F17/30

CPC分类号： G06F11/1458 ,  G06F16/128 ,  G06F2201/815

摘要： System and method for checking and characterizing metadata of snapshots utilize a snapshot metadata database to execute at least one of checking and characterizing operations on the metadata of snapshots. The snapshot metadata database includes information extracted from backing storage elements containing the metadata of snapshots.

公开(公告)号：US20180067817A1

公开(公告)日：2018-03-08

申请号：US15693961

申请日：2017-09-01

申请人： ULSAN NATIONAL INSTITUTE OF SCIENCE AND TECHNOLOGY (UNIST)

发明人： Sam-hyuk NOH ,  Young-je MOON ,  Jae-hyeong PARK ,  Hyun-sub SONG ,  Jung-hyun KIM

IPC分类号： G06F11/14 ,  G06F17/30 ,  G06F12/02

CPC分类号： G06F11/1458 ,  G06F11/1438 ,  G06F11/1471 ,  G06F12/0246 ,  G06F16/128 ,  G06F2201/84 ,  G06F2212/7201

摘要： An electronic device and a method of controlling the same are provided. The electronic device includes a new memory configured to include a main memory region and a file system region and a processor configured to perform computing and perform checkpointing on the main memory region and the file system region depending on a predetermined condition, wherein the main memory region includes a checkpoint table to which information on a page in which data are changed is written, and the processor initializes the checkpoint table and sets an attribute of pages of the main memory region to read-only at the time of performing the checkpointing on the main memory region.

公开(公告)号：US20180018234A1

公开(公告)日：2018-01-18

申请号：US15638619

申请日：2017-06-30

申请人： EMC IP Holding Company LLC

发明人： Kiran Kumar Madiraju Varadaraju

IPC分类号： G06F11/14 ,  G06F17/30

CPC分类号： G06F11/1451 ,  G06F11/1469 ,  G06F16/128 ,  G06F16/162

摘要： Techniques to exclude files from backup are disclosed. In various embodiments, a database that includes an exclude set table configured to store data associated with one or more files identified to be excluded from backup is accessed. Data retrieved from the database is used to exclude one or more of said one or more files from a backup. In some embodiments, files are excluded from the backup at least in part by deleting the files from a shadow copy volume created in connection with said backup.

公开(公告)号：US20170357549A1

公开(公告)日：2017-12-14

申请号：US15665930

申请日：2017-08-01

申请人： Nasuni Corporation

发明人： Robert S. Mason, JR. ,  Andres Rodriguez

IPC分类号： G06F11/14 ,  G06F17/30

CPC分类号： G06F11/1446 ,  G06F11/1448 ,  G06F11/1464 ,  G06F16/128 ,  G06F16/172 ,  G06F16/183 ,  G06F16/1873 ,  G06F16/9027 ,  G06F2201/805 ,  G06F2201/84

摘要： A versioned file system comprises a set of structured data representations. At a first time, an interface creates and exports to a cloud data store a first structured data representation corresponding to a first version of the local file system. The first structured data representation is an XML tree having a root element, one or more directory elements associated with the root element, and one or more file elements associated with a given directory element. Upon a change within the file system, the interface creates and exports a second structured data representation corresponding to a second version of the file system. The second structured data representation differs from the first structured data representation up to and including the root element of the second structured data representation. The interface continues to generate and export the structured data representations to the data store.

公开(公告)号：US20170344593A1

公开(公告)日：2017-11-30

申请号：US15169013

申请日：2016-05-31

申请人： Oracle International Corporation

发明人： Atrayee Mullick ,  Niloy Mukherjee ,  Sanket Hase ,  Tirthankar Lahiri ,  Juan Loaiza

IPC分类号： G06F17/30 ,  G06F11/14

CPC分类号： G06F16/2329 ,  G06F11/1446 ,  G06F11/1451 ,  G06F16/128 ,  G06F16/1873 ,  G06F16/2358 ,  G06F16/24552 ,  G06F16/258 ,  G06F16/273 ,  G06F2201/80 ,  G06F2201/84

摘要： Techniques for non-disruptive versioning of in-memory units in a database are provided. A database server generates and maintains a first IMU that reflects changes made to a mirrored-data-set up to a first snapshot time, and a second IMU that reflects changes made to the mirrored-data-set up to a second snapshot time. During a first period, the database server responds to updates to first data items in the mirrored data by storing first staleness metadata that indicates that the copies of the first data items in the first IMU are stale. During a second period, the database server responds to updates to second data items in the mirrored data by storing second staleness metadata that indicates that the copies of the second data items in the second IMU are stale. The database server responds to a request by accessing the first IMU or the second IMU.