公开(公告)号：US09959061B1

公开(公告)日：2018-05-01

申请号：US14870128

申请日：2015-09-30

申请人： EMC Corporation

发明人： Assaf Natanzon ,  Yair Cohen

IPC分类号： G06F9/455 ,  G06F3/06 ,  G06F17/30

CPC分类号： G06F3/0619 ,  G06F3/065 ,  G06F3/0664 ,  G06F3/0683 ,  G06F9/45558 ,  G06F17/30174 ,  G06F2009/45579

摘要： A computer implemented method for replicating virtual machine disk volumes on a storage array supporting reading signatures of data based on offset of data by reading signatures of data of a production virtual machine on production site; wherein reading the signature includes mapping a virtual machine disk offset into a physical storage offset and reading the signature from the physical storage; reading signatures of data of a replica virtual machine used to replicate the production virtual machine on a replica site wherein reading the signature includes mapping a virtual machine disk offset into a physical storage offset and reading the signature from the physical storage; and based on determination the signatures are not identical marking the locations for synchronization in a synchronization structure.

公开(公告)号：US10120925B1

公开(公告)日：2018-11-06

申请号：US14870147

申请日：2015-09-30

申请人： EMC Corporation

发明人： Assaf Natanzon ,  Yair Cohen

IPC分类号： G06F17/30 ,  G06F9/455 ,  H04L29/08

摘要： A computer implemented method for reading signatures corresponding to a portion of data on a virtual machine disk on a production site, wherein reading the signature includes mapping the virtual machine disk offset into a physical storage offset, and reading the signature from the physical storage; sending the signature of the portion of data to a replication site; obtaining a mapping from a virtual disk to a physical disk at the replica site; issuing a command to write a portion of data corresponding to the signature to a the physical storage based on the mapping of the replica of the virtual machine disk on the replication site; determining if the command was successful; and based on a determination that the command was not successful, marking the locations corresponding to the signature for synchronization in a synchronization structure.

公开(公告)号：US10067837B1

公开(公告)日：2018-09-04

申请号：US14980032

申请日：2015-12-28

申请人： EMC Corporation

发明人： Assaf Natanzon ,  Ran Goldschmidt ,  Yair Cohen

IPC分类号： G06F17/30 ,  G06F11/14 ,  G06F21/62

摘要： In one aspect, a method includes storing a virtual machine disk in a first logical unit stored on a data store; replicating the first virtual machine disk used by a first virtual machine at a second virtual machine disk stored on a second logical unit on a cloud array storage device; storing changes to the first virtual machine disk on a journal stored on the data store; periodically rolling each virtual machine disk of virtual machines on the second logical unit to a same-point-in-time using the journal and taking a snapshot of the second logical unit at the same point-in-time and sending the snapshots to a cloud storage network.