公开(公告)号：US20120284234A1

公开(公告)日：2012-11-08

申请号：US13099639

申请日：2011-05-03

Applicant: Ali MASHTIZADEH ,  Swathi KOUNDINYA

Inventor： Ali MASHTIZADEH ,  Swathi KOUNDINYA

IPC: G06F17/30

CPC classification number: G06F17/30233

Abstract: Persistent data, such as disks associated with virtual machines, are migrated between and across data stores using mirrored input-output operations (IOs). The migration technique employs a data mover to copy selected regions of the virtual machine disk to a target data store while the virtual machine is executing. If the virtual machine issues a write IO, the write IO is selectively mirrored on the target data store depending on whether or not the write IO is in a region of the virtual machine disk that has already been copied.

Abstract translation: 诸如与虚拟机相关联的磁盘等持久性数据在数据存储之间使用镜像输入输出操作（IO）进行迁移。 当虚拟机正在执行时，迁移技术使用数据移动器将虚拟机磁盘的选定区域复制到目标数据存储区。 如果虚拟机发出写入IO，则根据写IO是否在已经被复制的虚拟机磁盘的区域中，写入IO被选择性地镜像在目标数据存储上。