公开(公告)号：US10235091B1

公开(公告)日：2019-03-19

申请号：US15274381

申请日：2016-09-23

Applicant: EMC IP Holding Company, LLC

Inventor： Lev Ayzenberg ,  Assaf Natanzon ,  Valerie Lotosh ,  Alex Solan ,  Tomer Twig ,  Erez Sharvit

IPC: G06F3/06

Abstract: Described embodiments provide systems and methods for synchronizing a production volume and a backup volume of a storage system. A first thin volume is created and associated with the production volume. A first replica of the production volume is generated by copying data from the production volume to a replica volume. During the copying, an I/O request to be written to the production volume may be received. Data from the I/O request is written to the first thin volume and data changed due to the I/O request is tracked in metadata associated with the production volume and the first thin volume. A size of the first thin volume is checked, and when the size of the first thin volume is below a threshold, changes from the first thin volume are applied asynchronously to the backup storage.