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    Multiple points in time disk images for disaster recovery
    2.
    发明授权
    Multiple points in time disk images for disaster recovery 有权

    公开(公告)号：US10649868B2

    公开(公告)日：2020-05-12

    申请号：US15194097

    申请日：2016-06-27

    Applicant: Zerto Ltd.

    Inventor： Tomer Ben Or ,  Gil Barash ,  Chen Burshan ,  Ziv Kedem

    IPC: G06F11/00 ,  G06F11/263 ,  G06F9/455 ,  G06F11/20 ,  G06F11/22

    Abstract: An enterprise disaster recovery system, including at least one data disk, a processor for running at least one data application that reads data from the at least one data disk and writes data to the at least one data disk over a period of time, a recovery test engine that (i) generates in parallel a plurality of processing stacks corresponding to a respective plurality of previous points in time within the period of time, each stack operative to process a command to read data at a designated address from a designated one of the at least one data disk and return data at the designated address in an image of the designated data disk at the previous point in time corresponding to the stack, and (ii) that generates in parallel a plurality of logs of commands issued by the at least one data application to write data into designated addresses of designated ones of the plurality of data disks, each log corresponding to a respective previous point in time, wherein the plurality of previous points in time within the period of time are specified arbitrarily by a user of the system.

    Method for restoring files from a continuous recovery system
    3.
    发明授权
    Method for restoring files from a continuous recovery system 有权

    公开(公告)号：US09817729B2

    公开(公告)日：2017-11-14

    申请号：US14813169

    申请日：2015-07-30

    Applicant: ZERTO LTD. ,  Tamar Ben-Or

    Inventor： Oded Kedem ,  Tomer Ben-Or ,  Gil Barash

    IPC: G06F17/30 ,  G06F11/14 ,  G06F11/20

    CPC classification number: G06F11/1471 ,  G06F11/1448 ,  G06F11/1451 ,  G06F11/1469 ,  G06F11/2094 ,  G06F17/30144 ,  G06F2201/84

    Abstract: A system and method for generating replicas of a file of a protected storage system from protected data in a recovery system. The method including protecting data in a recovery system including a target disk configured to store a replica of the protected storage system from a before a time window and a journal including data and metadata of write operations to the protected storage system that occurred during the time window, obtaining a request to restore a file and an indication of a specified time point from which the file should be restored, generating a replica of a table of content of a file system of the protected storage system from the journal and the target disk, extracting location of the file from the table of content, and generating a replica of the file from the journal and the target disk, using the extracted file location.

    Adaptive quiesce for efficient cross-host consistent CDP checkpoints
    8.
    发明授权
    Adaptive quiesce for efficient cross-host consistent CDP checkpoints 有权

    公开(公告)号：US08959059B2

    公开(公告)日：2015-02-17

    申请号：US14478548

    申请日：2014-09-05

    Applicant: Zerto Ltd.

    Inventor： Amir Boldo ,  Ori Mamluk ,  Chen Burshan

    IPC: G06F17/30 ,  G06F11/14

    CPC classification number: G06F11/1464 ,  G06F11/1448 ,  G06F11/1458 ,  G06F11/1471 ,  G06F17/30575 ,  G06F2201/805 ,  G06F2201/82 ,  G06F2201/84 ,  Y10S707/99953

    Abstract: A disaster recovery system, including a target datastore for replicating data written to source datastores, and a checkpoint engine (i) for transmitting, at multiple times, quiesce commands to a plurality of host computers, each quiesce command including a timeout period that is adjusted at each of the multiple times, (ii) for determining, at each of the multiple times, whether acknowledgements indicating that a host has successfully stopped writing enterprise data to the source datastores, have been received from each of the host computers within the timeout period, (iii) for marking, at each of the multiple times, a cross-host checkpoint in the target datastore and reducing the timeout period for the quiesce commands at the next time, if the determining is affirmative, and (iv) for increasing, at each of the multiple times, the timeout period for the quiesce commands transmitted at the next time, if the determining is not affirmative.

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