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公开(公告)号：US10430290B2
公开(公告)日：2019-10-01
申请号：US15586329
申请日：2017-05-04
Applicant: EMC IP Holding Company LLC
Inventor： Assaf Natanzon , Saar Cohen , Anestis Panidis
Abstract: Example embodiments of the present invention relate to a method, a system, and a computer program product for performing data replication and backup. The method comprises performing a first data replication of a production site storage to a replication site storage and performing a first backup of the production site storage to a production site backup storage. A second data replication then may be performed from the production site backup storage to a backup site backup storage.
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公开(公告)号：US10324637B1
公开(公告)日：2019-06-18
申请号：US15377112
申请日：2016-12-13
Applicant: EMC IP Holding Company LLC
Inventor： Saar Cohen , Assaf Natanzon , Kirill Shoikhet
Abstract: A computer program product, system, and method for receiving an I/O from a host; at a first splitter, adding metadata for the I/O to a backlog; and at a second splitter, sending the I/O to both a storage array and to a data protection appliance (DPA). In some embodiments, the first splitter is located at the host and both the DPA and the second splitter is located within the storage array.
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公开(公告)号：US10191677B1
公开(公告)日：2019-01-29
申请号：US15481125
申请日：2017-04-06
Applicant: EMC IP Holding Company LLC
Inventor： Assaf Natanzon , Saar Cohen
Abstract: A computer implemented method, system, and program product for asynchronous splitting in a virtual replication environment, the method comprising intercepting IO directed to one or more volumes, adding, at a splitter, ordering info to the IOs, and sending the IOs to an appliance.
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公开(公告)号：US11971788B2
公开(公告)日：2024-04-30
申请号：US16804903
申请日：2020-02-28
Applicant: EMC IP Holding Company LLC
Inventor： Nadav Azaria , Jehuda Shemer , Saar Cohen
CPC classification number: G06F11/1469 , G06F9/45558 , G06F11/1448 , G06F2009/45562 , G06F2009/45575 , G06F2009/45579
Abstract: One example method includes receiving, at an IO journal, a new entry that identifies a respective disk location L, and data X written at that disk location L, and determining whether a location specified in an oldest entry of the IO journal is specified in any other entries in the IO journal. When the location specified in the oldest entry is not specified in any other entries in the IO journal, adding the new entry to the IO journal, and augmenting the new entry with undo data. Or, when the location specified in the oldest entry is specified in at least one other entry in the IO journal, setting data specified in the oldest entry as undo data for the next entry that identifies that location, and adding the new entry to the IO journal, and deleting the oldest entry from the IO journal.
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15.发明授权公开(公告)号：US11868640B2
公开(公告)日：2024-01-09
申请号：US18068919
申请日：2022-12-20
Applicant: EMC IP Holding Company LLC
Inventor： Itay Azaria , Kfir Wolfson , Jehuda Shemer , Saar Cohen
CPC classification number: G06F3/065 , G06F3/0611 , G06F3/0619 , G06F3/0679 , G06F11/1471 , G06F2201/82
Abstract: One example method includes intercepting an IO issued by an application, writing the IO and IO metadata to a splitter journal in NVM, forwarding the IO to storage, and asynchronous with operations occurring along an IO path between the application and storage, evacuating the splitter journal by sending the IO and IO metadata from the splitter journal to a replication site. In this example, sending the IO and IO metadata from the journal to the replication site does not increase a latency associated with the operations on the IO path.
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Patent Agency Ranking
16.发明授权公开(公告)号：US11656783B2
公开(公告)日：2023-05-23
申请号：US16803630
申请日：2020-02-27
Applicant: EMC IP Holding Company LLC
Inventor： Itay Azaria , Kfir Wolfson , Jehuda Shemer , Saar Cohen
CPC classification number: G06F3/065 , G06F3/0611 , G06F3/0619 , G06F3/0679 , G06F11/1471 , G06F2201/82
Abstract: One example method includes intercepting an IO issued by an application, writing the IO and IO metadata to a splitter journal in NVM, forwarding the IO to storage, and asynchronous with operations occurring along an IO path between the application and storage, evacuating the splitter journal by sending the IO and IO metadata from the splitter journal to a replication site. In this example, sending the IO and IO metadata from the journal to the replication site does not increase a latency associated with the operations on the IO path.
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公开(公告)号：US11386118B2
公开(公告)日：2022-07-12
申请号：US16655376
申请日：2019-10-17
Applicant: EMC IP Holding Company LLC
Inventor： Jehuda Shemer , Arieh Don , Saar Cohen
Abstract: Systems and methods for replicating data from storage. Snapshots are taken on a consistency group of volumes and are stored in snapshot volumes. Changes to the data stored in the volumes are identified from the snapshots and the changes are written to a journal. The journal allows the changes to be replicated to a virtual replication system and a physical replication system. The journal can be replicated to different systems, including physical and virtual systems, by exposing the same journal in different manners.
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公开(公告)号：US20220058089A1
公开(公告)日：2022-02-24
申请号：US17517062
申请日：2021-11-02
Applicant: EMC IP HOLDING COMPANY LLC
Inventor： Jehuda Shemer , Valerie Lotosh , Saar Cohen , Erez Sharvit
IPC: G06F11/14
Abstract: Generating any point in time backups without native snapshot generation. Production data is split such that a journal stream is sent to a data protection system, which may be local or remote. The journal stream includes a data stream and a metadata stream. Backups are synthesized at the data protection system by rolling at least a portion of the journal. A backup for any point in time represented in the journal can be synthesized.
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公开(公告)号：US20210409455A1
公开(公告)日：2021-12-30
申请号：US16910482
申请日：2020-06-24
Applicant: EMC IP Holding Company LLC
Inventor： Erez Sharvit , Jehuda Shemer , Valerie Lotosh , Saar Cohen
Abstract: One example method includes intercepting an IO that is directed to a volume, writing the IO to a grid-CG that is one of a plurality of grid-CGs that collectively form a distributed CG, adding the IO to a stream journal associated with the grid-CG, receiving a bookmark request, in response to the bookmark request, inserting a bookmark in the stream journal, incrementing a splitter counter and broadcasting a splitter counter value to the grid-CGs in the distributed CG, and inserting the bookmark in respective stream journals of the grid-CGs in the distributed CG.
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公开(公告)号：US20210271569A1
公开(公告)日：2021-09-02
申请号：US16804855
申请日：2020-02-28
Applicant: EMC IP Holding Company LLC
Inventor： Nadav Azaria , Jehuda Shemer , Saar Cohen
Abstract: One example method includes receiving, at an IO journal, a new entry that identifies a respective disk location L, and data X written at that disk location L, and determining whether a location specified in an oldest entry of the IO journal is specified in any other entries in the IO journal. When the location specified in the oldest entry is not specified in any other entries in the IO journal, adding the new entry to the IO journal, and augmenting the new entry with undo data. Or, when the location specified in the oldest entry is specified in at least one other entry in the IO journal, setting data specified in the oldest entry as undo data for the next entry that identifies that location, and adding the new entry to the IO journal, and deleting the oldest entry from the IO journal.
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