公开(公告)号：US20100049932A1

公开(公告)日：2010-02-25

申请号：US12540962

申请日：2009-08-13

申请人： Zujing Tan ,  Peng Zhang ,  Weihua Geng ,  Guobin Zhang

发明人： Zujing Tan ,  Peng Zhang ,  Weihua Geng ,  Guobin Zhang

IPC分类号： G06F12/16 ,  G06F12/00

CPC分类号： G06F11/1461

摘要： A method for automatic snapshot includes obtaining the amount of data written into a source Logical Unit Number (LUN) and performing increment accumulation; and taking a snapshot when a value of the increment accumulation exceeds the upper limit value. An apparatus for automatic snapshot is disclosed. In one embodiment of the invention, snapshots are taken according to the size of a data variable, only two characterizing parameters, an upper limit value and an increment value need to be added, and the determination logic is clear and concise. Thus, system efficiency or resource overload is not affected, the pertinence is strengthened, the resource usage is increased, and the adaptability is strengthened. Furthermore, stored data may be automatically protected with snapshot, and data safety and reliability are greatly improved.

摘要翻译： 一种自动快照方法包括获取写入源逻辑单元编号（LUN）并执行增量累加的数据量; 并且当增量累积值超过上限值时拍摄快照。 公开了一种用于自动快照的装置。 在本发明的一个实施例中，根据数据变量的大小拍摄快照，仅需要两个特征参数，上限值和增量值，并且确定逻辑清晰简洁。 因此，系统效率或资源过载不受影响，相关性得到加强，资源使用增加，适应性强化。 此外，存储的数据可以用快照自动保护，并且数据的安全性和可靠性大大提高。

公开(公告)号：US08370591B2

公开(公告)日：2013-02-05

申请号：US12540962

申请日：2009-08-13

申请人： Zujing Tan ,  Peng Zhang ,  Weihua Geng ,  Guobin Zhang

发明人： Zujing Tan ,  Peng Zhang ,  Weihua Geng ,  Guobin Zhang

IPC分类号： G06F12/00 ,  G06F11/00

CPC分类号： G06F11/1461

摘要： A method for automatic snapshot includes obtaining the amount of data written into a source Logical Unit Number (LUN) and performing increment accumulation; and taking a snapshot when a value of the increment accumulation exceeds the upper limit value. An apparatus for automatic snapshot is disclosed. In one embodiment of the invention, snapshots are taken according to the size of a data variable, only two characterizing parameters, an upper limit value and an increment value need to be added, and the determination logic is clear and concise. Thus, system efficiency or resource overload is not affected, the pertinence is strengthened, the resource usage is increased, and the adaptability is strengthened. Furthermore, stored data may be automatically protected with snapshot, and data safety and reliability are greatly improved.

摘要翻译： 一种自动快照方法包括获取写入源逻辑单元编号（LUN）并执行增量累加的数据量; 并且当增量累积值超过上限值时拍摄快照。 公开了一种用于自动快照的装置。 在本发明的一个实施例中，根据数据变量的大小拍摄快照，仅需要两个特征参数，上限值和增量值，并且确定逻辑清晰简洁。 因此，系统效率或资源过载不受影响，相关性得到加强，资源使用增加，适应性强化。 此外，存储的数据可以用快照自动保护，并且数据的安全性和可靠性大大提高。