公开(公告)号：US20170090769A1

公开(公告)日：2017-03-30

申请号：US15086349

申请日：2016-03-31

申请人： EMC Corporation

发明人： Vadim Agarkov ,  Sergey Storozhevykh ,  Maksim Vazhenin ,  Ilya Volzhev ,  Michael E. Bappe

IPC分类号： G06F3/06 ,  G06F11/07

CPC分类号： G06F3/065 ,  G06F3/061 ,  G06F3/0659 ,  G06F3/067 ,  G06F11/0727 ,  G06F11/0751 ,  G06F11/079 ,  G06F11/0793

摘要： Embodiments of the present disclosure relate to a system, a computer program product and a method for synchronizing data between a source disk and a target disk in a cluster by performing synchronization between a source disk and a target disk, the synchronization being performed while a plurality of application I/Os on a plurality of nodes in a cluster are configured to access the source disk; and wherein a coordinator and a plurality of workers in the cluster are configured to manage copying data from the source disk to the target disk.

公开(公告)号：US09965215B1

公开(公告)日：2018-05-08

申请号：US14315414

申请日：2014-06-26

申请人： EMC Corporation

发明人： Maksim Vazhenin ,  Ilya Volzhev ,  Sergey Storozhevykh ,  Vadim Agarkov

IPC分类号： G06F3/06 ,  G06F11/20

CPC分类号： G06F3/065 ,  G06F3/0619 ,  G06F3/0689 ,  G06F11/2064 ,  G06F11/2082 ,  G06F11/2094

摘要： In one aspect, a method, includes designating a range of memory in a source disk to synchronize with a target disk, receiving blocks of data that have changed in the source disk and were cloned to a target disk, marking the blocks of data as synchronized and copying data in portions of the range that are not marked as synchronized in the source disk to the target disk.

公开(公告)号：US09007706B1

公开(公告)日：2015-04-14

申请号：US14492185

申请日：2014-09-22

申请人： EMC Corporation

发明人： Maksim Vazhenin ,  Sergey Storozhevykh ,  Ilya Volzhev ,  Vadim Agarkov

IPC分类号： G11B5/02 ,  G11B20/10 ,  G11B20/12 ,  G06F3/06

CPC分类号： G11B5/02 ,  G06F3/061 ,  G06F3/0647 ,  G06F3/0689 ,  G11B20/10 ,  G11B20/1217 ,  G11B20/1258

摘要： In one aspect, a method includes performing synchronization between a source disk and a target disk. The performing includes reading data, in a first read, with a first size from a source disk, writing the data from the first to a target disk, reading data, in a second read, with the first size from the source disk, determining if the data from the first read is equal to the data from the second read, reducing the first size if the data from the first read is not equal to the data in the second read and repeating the reading data in the first read, the writing, the reading data in the second read and the determining.

摘要翻译： 一方面，一种方法包括执行源盘和目标盘之间的同步。 所述执行包括在第一次读取中从源磁盘读取第一大小的数据，将数据从第一个数据写入目标磁盘，以第二个读取的数据从源磁盘读取第一个大小，确定是否 来自第一次读取的数据等于来自第二次读取的数据，如果来自第一次读取的数据不等于第二次读取中的数据并在第一次读取中重复读取数据，则写入， 读取数据在第二次读取和确定。