公开(公告)号：US08495165B2

公开(公告)日：2013-07-23

申请号：US13525626

申请日：2012-06-18

申请人： Jiaolin Luo ,  Guobin Zhang ,  Maoyin Liu

发明人： Jiaolin Luo ,  Guobin Zhang ,  Maoyin Liu

IPC分类号： G06F15/167

CPC分类号： G06F3/0635 ,  G06F3/0607 ,  G06F3/0644 ,  G06F3/067

摘要： Embodiments of the present technical solution relate to the technique field of storage, and disclose a server and a method for the server to access a volume. The method comprises: determining, from a first list, a block that needs to be accessed according to an access offset of a volume that needs to be accessed; determining, from a second list, a storage controller corresponding to the block that needs to be accessed according to the determined block; and sending a data reading request or a data writing request to the storage controller corresponding to the block that needs to be accessed to process. Embodiments of the present invention can reduce time delay when the data reading request or the data writing request of the server reaches the block that needs to be accessed.

摘要翻译： 本技术方案的实施例涉及技术存储领域，并且公开了用于服务器访问卷的服务器和方法。 该方法包括：根据需要访问的卷的访问偏移从第一列表确定需要被访问的块; 根据所确定的块，从第二列表确定与需要被访问的块相对应的存储控制器; 以及将数据读取请求或数据写入请求发送到与需要访问的块对应的存储控制器进行处理。 当服务器的数据读取请求或数据写入请求到达需要访问的块时，本发明的实施例可以减少时间延迟。

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：US20090265520A1

公开(公告)日：2009-10-22

申请号：US12351466

申请日：2009-01-09

申请人： Weihua Geng ,  Hua Peng ,  Peng Zhang ,  Guobin Zhang ,  Yangji OU

发明人： Weihua Geng ,  Hua Peng ,  Peng Zhang ,  Guobin Zhang ,  Yangji OU

IPC分类号： G06F12/16 ,  G06F12/00

CPC分类号： G06F11/3409 ,  G06F11/1451 ,  G06F2201/81

摘要： A method and apparatus for backing up data in the source LUN is disclosed. The method for backing up the data in a source Logic Unit Number (LUN), includes: copying the data which needs to be modified in the source LUN to a resource pool; monitoring the resource utilization amount in the resource pool; creating a target LUN when the resource utilization amount exceeds a preset threshold; and copying the unmodified data in the source LUN and the backup data of the source LUN in the resource pool into the target LUN.

摘要翻译： 公开了用于备份源LUN中的数据的方法和装置。 在源逻辑单元号（LUN）中备份数据的方法包括：将源LUN中需要修改的数据复制到资源池中; 监控资源池中的资源利用量; 当资源利用量超过预设阈值时，创建目标LUN; 将源LUN中的未修改数据和资源池中源LUN的备份数据复制到目标LUN中。

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。

公开(公告)号：US20120259941A1

公开(公告)日：2012-10-11

申请号：US13525626

申请日：2012-06-18

申请人： Jiaolin LUO ,  Guobin ZHANG ,  Maoyin LIU

发明人： Jiaolin LUO ,  Guobin ZHANG ,  Maoyin LIU

IPC分类号： G06F15/167

CPC分类号： G06F3/0635 ,  G06F3/0607 ,  G06F3/0644 ,  G06F3/067

摘要： Embodiments of the present technical solution relate to the technique field of storage, and disclose a server and a method for the server to access a volume. The method comprises: determining, from a first list, a block that needs to be accessed according to an access offset of a volume that needs to be accessed; determining, from a second list, a storage controller corresponding to the block that needs to be accessed according to the determined block; and sending a data reading request or a data writing request to the storage controller corresponding to the block that needs to be accessed to process. Embodiments of the present invention can reduce time delay when the data reading request or the data writing request of the server reaches the block that needs to be accessed.

摘要翻译： 本技术方案的实施例涉及技术存储领域，并且公开了用于服务器访问卷的服务器和方法。 该方法包括：根据需要访问的卷的访问偏移从第一列表确定需要被访问的块; 根据所确定的块，从第二列表确定与需要被访问的块相对应的存储控制器; 以及将数据读取请求或数据写入请求发送到与需要访问的块对应的存储控制器进行处理。 当服务器的数据读取请求或数据写入请求到达需要访问的块时，本发明的实施例可以减少时间延迟。

公开(公告)号：US20090222499A1

公开(公告)日：2009-09-03

申请号：US12394704

申请日：2009-02-27

申请人： Zujing TAN ,  Guobin ZHANG ,  Weihua GENG ,  Peng ZHANG

发明人： Zujing TAN ,  Guobin ZHANG ,  Weihua GENG ,  Peng ZHANG

IPC分类号： G06F17/30

CPC分类号： G06F11/1461 ,  G06F11/1451 ,  G06F2201/81 ,  G06F2201/84

摘要： A method for data protection is disclosed. The method includes: setting a Logical Unit Number (LUN) key area; obtaining data change amount when data in the preset LUN key area change; determining whether the data change amount exceeds a preset threshold, and a snapshot is created if the data change amount exceeds the preset threshold. The disclosure further discloses an apparatus for data protection and a storage device including the apparatus for data protection. In embodiments of the disclosure, certain parts in the LUN are set to be LUN key area, and a quantitative strategy is initiated, i.e., a snapshot is created only when the data change amount of the LUN key area exceeds a preset threshold. Snapshots are not created when the data in the key has no change or little change, in order to avoid waste of resources.

摘要翻译： 公开了一种数据保护方法。 该方法包括：设置逻辑单元号（LUN）密钥区; 当预设的LUN密钥区域中的数据发生变化时获取数据更改量; 确定数据改变量是否超过预置阈值，如果数据改变量超过预设阈值，则创建快照。 本公开还公开了一种用于数据保护的装置和包括用于数据保护的装置的存储装置。 在本公开的实施例中，LUN中的某些部分被设置为LUN密钥区域，并且启动定量策略，即仅当LUN密钥区域的数据改变量超过预设阈值时才创建快照。 当密钥中的数据没有变化或变化很小时，不会创建快照，以免浪费资源。