公开(公告)号：US11221786B2

公开(公告)日：2022-01-11

申请号：US16834022

申请日：2020-03-30

Applicant: EMC IP Holding Company LLC

Inventor： Alex Solan ,  Jehuda Shemer ,  Gabi Benhanokh

IPC: G06F3/06

Abstract: Data protection operations based on direct storage access. Data protection operations that involve large data transfers are optimized or improved by transferring the data using a communication path that includes direct access to disks of a storage array. This avoids latencies associated with transferring data through the layers of the storage array. The locations of the data to be transferred are identified and provided to an appliance. The appliance can then read and transfer the data over a communication path that includes direct disk access.

公开(公告)号：US20210397521A1

公开(公告)日：2021-12-23

申请号：US16909613

申请日：2020-06-23

Applicant: EMC IP Holding Company LLC

Inventor： Jehuda Shemer ,  Valerie Lotosh ,  Saar Cohen ,  Erez Sharvit

IPC: G06F11/14 ,  G06F16/18 ,  G06F16/188 ,  G06F16/178

Abstract: Any point in time backups for distributed consistency is disclosed. IOs from a consistency group are received by multiple aggregators and stored in corresponding journals. In response to a bookmark, the multiple journals are synthesized to create a do stream or to add the multiple journals to the do stream. A full synchronization operation can be performed simultaneously with replication operations.

公开(公告)号：US20210365339A1

公开(公告)日：2021-11-25

申请号：US16878206

申请日：2020-05-19

Applicant: EMC IP Holding Company LLC

Inventor： Bing Liu ,  Jehuda Shemer ,  Kfir Wolfson ,  Jawad Said

IPC: G06F11/30 ,  G06F11/07 ,  G06F9/455 ,  G06K9/62 ,  G06N20/00

Abstract: Data protection operations including replication operations that dynamically adapt a topology of replica virtual machines. A data protection system may implement a machine model that is trained using, as input, characteristics of virtual machines. When a failure is predicted, a topology of the replica virtual machines is changed. The topology may also change when changes in the environment are detected. The changes may include redistributing the protected applications to the replica virtual machines and/or scaling the replica virtual machines.

公开(公告)号：US20210365330A1

公开(公告)日：2021-11-25

申请号：US16880080

申请日：2020-05-21

Applicant: EMC IP Holding Company LLC

Inventor： Tomer Kushnir ,  Jehuda Shemer ,  Jawad Said ,  Kfir Wolfson

IPC: G06F11/14 ,  G06F9/455

Abstract: On-the-fly point-in-time recovery operations are disclosed. During a recovery operation, the PiT being restored can be changed on-the-fly or during the existing recovery operation without restarting the recovery process from the beginning. IN one example, this improves recovery time operation (RTO) and prevents aspects of the recovery operation to be avoided when changing to a different PiT.

公开(公告)号：US11175997B2

公开(公告)日：2021-11-16

申请号：US16785230

申请日：2020-02-07

Applicant: EMC IP Holding Company LLC

Inventor： Jehuda Shemer ,  Valerie Lotosh ,  Saar Cohen ,  Erez Sharvit

IPC: G06F12/16 ,  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.

公开(公告)号：US11106811B2

公开(公告)日：2021-08-31

申请号：US16170767

申请日：2018-10-25

Applicant: EMC IP Holding Company LLC

Inventor： Assaf Natanzon ,  Jehuda Shemer ,  Kfir Wolfson

IPC: G06F3/06 ,  G06F21/62

Abstract: Systems, apparatus and methods for managing an object's lifecycle in an object store. A distributed ledger is used to record transactions between a client and an object store. The distributed ledger records the transaction and also attests to the object authenticity. Thus, the transactions can be verified and may assist in resolving issues that arise with respect to the stored objects.

公开(公告)号：US20210263650A1

公开(公告)日：2021-08-26

申请号：US16802120

申请日：2020-02-26

Applicant: EMC IP Holding Company LLC

Inventor： Jehuda Shemer ,  Jawad Said ,  Kfir Wolfson

IPC: G06F3/06 ,  G06F9/455

Abstract: One example method includes powering off a replica VM, taking a snapshot of an OS disk of a source VM associated with the replica VM, taking a snapshot of an OS disk of the replica VM, generating a list of blocks that includes all blocks of the source VM OS disk that have changed since a preceding cloning or snapshot process and further includes all blocks of the replica VM OS disk that have changed since the preceding cloning or snapshot process, and performing an override of the replica VM disk by writing, to the replica VM OS disk, the respective source VM OS disk values for each block in the list of blocks.

公开(公告)号：US20210234671A1

公开(公告)日：2021-07-29

申请号：US16776129

申请日：2020-01-29

Applicant: EMC IP Holding Company LLC

Inventor： Alex Solan ,  Jehuda Shemer

IPC: H04L9/06 ,  G06F16/22

Abstract: One example method, which may be performed in connection with an object store, includes receiving a key of a key-value pair, correlating the key to a location in a base of a Merkle tree, inserting the key at the location, hashing the value associated with the key to produce a data hash, and inserting the data hash in the Merkle tree. The Merkle tree may then be checked for consistency, and synchronized with another Merkle tree. The Merkle tree may be of a fixed size, and insertion of the key in the Merkle tree does not change the location of any keys existing in the Merkle tree prior to insertion of the new key.

公开(公告)号：US20210182150A1

公开(公告)日：2021-06-17

申请号：US16713722

申请日：2019-12-13

Applicant: EMC IP Holding Company LLC

Inventor： Nadav Azaria ,  Saar Cohen ,  Jehuda Shemer

IPC: G06F11/14 ,  G06F16/28 ,  G06F16/27

Abstract: A live image of a virtual machine is disclosed. When generating a live image, an image of a virtual machine is generated. A journal is also generated that starts before a start time of the image and ends after the start time of the image. A live image is then generated by synchronizing the start time of the image with the journal. This includes evaluating or analyzing the journal relative to the backup to determine or synchronize the start time relative to the entries in the journal.

公开(公告)号：US20210165710A1

公开(公告)日：2021-06-03

申请号：US17168423

申请日：2021-02-05

Applicant: EMC IP Holding Company LLC

Inventor： Kfir Wolfson ,  Jehuda Shemer ,  Assaf Natanzon

IPC: G06F11/07

Abstract: One example method includes receiving information concerning a threat to stored data, correlating the information with a preemptive action which, when taken, prevents harm to the stored data by the threat, implementing the preemptive action before the threat causes harm to the stored data, and taking an action to at least partly return a system associated with the stored data to a pre-threat state. The threat may be a natural disaster, or a human-caused condition, for example.