公开(公告)号：US10223007B1

公开(公告)日：2019-03-05

申请号：US14585259

申请日：2014-12-30

Applicant: EMC Corporation

Inventor： Assaf Natanzon ,  Saar Cohen ,  Slavik Neymer ,  Jehuda Shemer ,  Lehood Baruch

IPC: G06F12/00 ,  G06F3/06 ,  G06N99/00

Abstract: A computer implemented method, system, and computer program product for use in replication comprising receiving an IO at a splitter at a production site from a host, determining if the IO is to a predicted location, wherein a predicted location is a location predicted to correspond to a future write to an image on the production site, and splitting the IO based on the decision.

公开(公告)号：US10067694B1

公开(公告)日：2018-09-04

申请号：US14674708

申请日：2015-03-31

Applicant: EMC Corporation

Inventor： Assaf Natanzon ,  Leehod Baruch ,  Jehuda Shemer ,  Saar Cohen ,  Slavik Neymer

IPC: G06F12/00 ,  G06F3/06

Abstract: A method, system, and program product for intercepting an IO from a host running a virtual machine directed to a virtual machine disk at a splitter, wherein the host is being replicated by data protection appliances, adding ordering information to the IO, sending the IO to the virtual machine disk, determining one data protection appliance of the data protection appliances to replication the IO, and sending the IO to the one of the data protection appliances.

公开(公告)号：US09875042B1

公开(公告)日：2018-01-23

申请号：US14674265

申请日：2015-03-31

Applicant: EMC Corporation

Inventor： Assaf Natanzon ,  Leehod Baruch ,  Jehuda Shemer ,  Saar Cohen ,  Slavik Neymer

IPC: G06F3/06 ,  G06F11/20

CPC classification number: G06F3/067 ,  G06F3/0617 ,  G06F3/065 ,  G06F11/2074

Abstract: A method, system, and computer program product for use in a replication environment comprising intercepting an IO sent from a host to a storage device in a splitter, marking information about the IO in a tracking structure, sending the IO to the storage device, and sending the IO to a replication device; wherein the IO is sent to the storage device before confirming that the replication device has received the IO.

公开(公告)号：US10235196B1

公开(公告)日：2019-03-19

申请号：US14980037

申请日：2015-12-28

Applicant: EMC Corporation

Inventor： Assaf Natanzon ,  Lev Ayzenberg ,  Erez Sharvit ,  Slavik Neymer ,  Leehod Baruch

IPC: G06F9/455 ,  G06F17/30 ,  G06F11/14

Abstract: In one aspect, a method includes separating a set of virtual machines from a first consistency group to a second consistency group and third consistency group. The method also includes combining a first virtual machine of the second consistency group to the third consistency group to form a fourth consistency group.

公开(公告)号：US10671596B1

公开(公告)日：2020-06-02

申请号：US14674241

申请日：2015-03-31

Applicant: EMC Corporation

Inventor： Assaf Natanzon ,  Leehod Baruch ,  Jehuda Shemer ,  Saar Cohen ,  Slavik Neymer

IPC: G06F16/00 ,  G06F16/23 ,  G06F11/14 ,  G06F11/16 ,  G06F11/30

Abstract: A method, system, and computer program product for determining a consistent point in time in a replication environment comprising determining periods of time that no IO was received from sources; wherein the periods are determined to account for differences between the clocks of the sources and the clock at a replication appliance, adjusting the periods of time that no IO was received by at least one delay factor, comparing the adjusted periods of time from the sources to determine a common period of time; wherein the common point in time denotes that each source was in a consistent state and marking the adjusted point in time as a consistent point in time in a journal.