公开(公告)号：US08839031B2

公开(公告)日：2014-09-16

申请号：US13454272

申请日：2012-04-24

申请人： Partho P. Das ,  Rohit Jaini ,  Vijay Krishna Tandra Sistla ,  Rahul Shrikant Newaskar

发明人： Partho P. Das ,  Rohit Jaini ,  Vijay Krishna Tandra Sistla ,  Rahul Shrikant Newaskar

IPC分类号： G06F11/00

CPC分类号： G06F11/2097 ,  G06F11/1484 ,  G06F11/2038 ,  G06F2201/82 ,  G06F2201/83

摘要： Data consistency between a primary virtual machine and a recovery virtual machine may employ a resync engine to detect differences in data blocks stored on both virtual machines. For example, the resync engine may calculate a signature (e.g., hash value) for a primary data block and a corresponding signature for a recovery data block, and compare the signature and the corresponding signature to identify a difference between the primary data block and the recovery data block. In some instances, by identifying a difference between the primary data block and the recovery data block, a data block (e.g., primary data block or recovery data block) may be identified to be transferred from a virtual machine to another virtual machine.

摘要翻译： 主虚拟机与恢复虚拟机之间的数据一致性可以使用重新同步引擎来检测存储在两个虚拟机上的数据块的差异。 例如，重新同步引擎可以计算主数据块的签名（例如，哈希值）和恢复数据块的对应签名，并且比较签名和相应签名以识别主数据块和主数据块之间的差异 恢复数据块。 在某些情况下，通过识别主数据块和恢复数据块之间的差异，可以将数据块（例如，主数据块或恢复数据块）识别为从虚拟机传送到另一虚拟机。

公开(公告)号：US20130283092A1

公开(公告)日：2013-10-24

申请号：US13454272

申请日：2012-04-24

申请人： Partho P. Das ,  Rohit Jaini ,  Vijay Krishna Tandra Sistla ,  Rahul Shrikant Newaskar

发明人： Partho P. Das ,  Rohit Jaini ,  Vijay Krishna Tandra Sistla ,  Rahul Shrikant Newaskar

IPC分类号： G06F11/14

CPC分类号： G06F11/2097 ,  G06F11/1484 ,  G06F11/2038 ,  G06F2201/82 ,  G06F2201/83

摘要： Data consistency between a primary virtual machine and a recovery virtual machine may employ a resync engine to detect differences in data blocks stored on both virtual machines. For example, the resync engine may calculate a signature (e.g., hash value) for a primary data block and a corresponding signature for a recovery data block, and compare the signature and the corresponding signature to identify a difference between the primary data block and the recovery data block. In some instances, by identifying a difference between the primary data block and the recovery data block, a data block (e.g., primary data block or recovery data block) may be identified to be transferred from a virtual machine to another virtual machine.

摘要翻译： 主虚拟机与恢复虚拟机之间的数据一致性可以使用重新同步引擎来检测存储在两个虚拟机上的数据块的差异。 例如，重新同步引擎可以计算主数据块的签名（例如，哈希值）和恢复数据块的对应签名，并且比较签名和相应签名以识别主数据块和主数据块之间的差异 恢复数据块。 在某些情况下，通过识别主数据块和恢复数据块之间的差异，可以将数据块（例如，主数据块或恢复数据块）识别为从虚拟机传送到另一虚拟机。