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    • 2. 发明申请
    • DATA ALLOCATION IN A DISTRIBUTED STORAGE SYSTEM
    • 分布式存储系统中的数据分配
    • US20120089802A1
    • 2012-04-12
    • US13326536
    • 2011-12-15
    • Ofir ZOHARYaron REVAHHaim HELMANDror COHEN
    • Ofir ZOHARYaron REVAHHaim HELMANDror COHEN
    • G06F12/02
    • G06F3/0607G06F3/0632G06F3/0635G06F3/0647G06F3/0689G06F11/2087G06F2206/1012
    • A method for data distribution, including distributing logical addresses among an initial set of devices so as provide balanced access, and transferring the data to the devices in accordance with the logical addresses. If a device is added to the initial set, forming an extended set, the logical addresses are redistributed among the extended set so as to cause some logical addresses to be transferred from the devices in the initial set to the additional device. There is substantially no transfer of the logical addresses among the initial set. If a surplus device is removed from the initial set, forming a depleted set, the logical addresses of the surplus device are redistributed among the depleted set. There is substantially no transfer of the logical addresses among the depleted set. In both cases the balanced access is maintained.
    • 一种用于数据分配的方法,包括在初始设备集合之间分配逻辑地址以提供平衡访问,并且根据逻辑地址将数据传送到设备。 如果将设备添加到初始设置中,形成扩展集合,则在扩展集合之间重新分配逻辑地址,以便使一些逻辑地址从初始设置中的设备传送到附加设备。 在初始设置中基本上不传送逻辑地址。 如果剩余设备从初始设置中移除,形成耗尽组,则剩余设备的逻辑地址在耗尽组中重新分配。 在耗尽组中基本上不传送逻辑地址。 在这两种情况下,维持平衡的访问。
    • 3. 发明授权
    • Method and apparatus for ensuring data integrity in redundant mass storage systems
    • 确保冗余海量存储系统数据完整性的方法和装置
    • US07698591B2
    • 2010-04-13
    • US11212436
    • 2005-08-26
    • Ofir ZoharYaron RevahHaim HelmanDror CohenShemer SchwartzKariel Sendler
    • Ofir ZoharYaron RevahHaim HelmanDror CohenShemer SchwartzKariel Sendler
    • G06F11/00
    • G06F11/1076G06F2211/1088
    • A method for maintaining integrity of data in a redundant mass storage system is provided that includes selecting a plurality of scrubbing selections for a memory system in which each of the scrubbing selections selects a data section on the memory system. The method also includes selecting a respective scrubbing implementation for each scrubbing selection in which each of the scrubbing implementations determines a data check. Another exemplary method is provided for ensuring integrity of data stored in a redundant mass storage system. An apparatus is provided for maintaining data integrity in a redundant mass storage system. A computer-readable storage medium containing a set of instructions for a general purpose computer is provided. The set of instructions include a method for ensuring data integrity in a redundant mass storage system.
    • 提供了一种用于维护冗余大容量存储系统中的数据完整性的方法,其包括为存储系统选择多个擦除选择,其中每个擦除选择选择存储器系统上的数据部分。 该方法还包括为每个擦洗选择选择相应的洗涤实施,其中每个洗涤实施确定数据检查。 提供另一示例性方法用于确保存储在冗余大容量存储系统中的数据的完整性。 提供了一种用于在冗余大容量存储系统中维持数据完整性的装置。 提供了包含用于通用计算机的指令集的计算机可读存储介质。 该组指令包括一种用于确保冗余大容量存储系统中的数据完整性的方法。
    • 5. 发明授权
    • Continuous data protection
    • 持续数据保护
    • US07653800B2
    • 2010-01-26
    • US11196721
    • 2005-08-03
    • Ofir ZoharYaron RevahHaim HelmanDror CohenShemer Schwartz
    • Ofir ZoharYaron RevahHaim HelmanDror CohenShemer Schwartz
    • G06F13/16
    • G06F21/80G06F11/1435
    • A method for continuous data protection in a storage system, including receiving a first write command to write first data to a partition of a logical volume and then generating a first partition descriptor record (PDR) having a first timestamp. The method further includes storing the first data at a first location, associating the first PDR with the first location, and receiving a second write command, subsequent to the first command, to update the first data with second data. Responsively to the second command, a second PDR having a second timestamp is generated. The second data is stored at a second location, and the second PDR is associated with the second location. The method includes generating a pointer between the first PDR and the second PDR, and accessing the first PDR using the pointer in response to a read command indicating a time prior to the second timestamp.
    • 一种用于存储系统中的连续数据保护的方法,包括接收第一写入命令以将第一数据写入到逻辑卷的分区,然后生成具有第一时间戳的第一分区描述符记录(PDR)。 该方法还包括将第一数据存储在第一位置,将第一PDR与第一位置相关联,以及在第一命令之后接收第二写入命令,以用第二数据更新第一数据。 响应于第二命令,产生具有第二时间戳的第二PDR。 第二数据被存储在第二位置,并且第二PDR与第二位置相关联。 该方法包括在第一PDR和第二PDR之间生成指针,以及响应于指示第二时间戳之前的时间的读取命令,使用指针访问第一PDR。
    • 10. 发明申请
    • Continuous data protection
    • 持续数据保护
    • US20070033370A1
    • 2007-02-08
    • US11196721
    • 2005-08-03
    • Ofir ZoharYaron RevahHaim HelmanDror CohenShemer Schwartz
    • Ofir ZoharYaron RevahHaim HelmanDror CohenShemer Schwartz
    • G06F12/00
    • G06F21/80G06F11/1435
    • A method for continuous data protection in a storage system, including receiving a first write command to write first data to a partition of a logical volume and then generating a first partition descriptor record (PDR) having a first timestamp. The method further includes storing the first data at a first location, associating the first PDR with the first location, and receiving a second write command, subsequent to the first command, to update the first data with second data. Responsively to the second command, a second PDR having a second timestamp is generated. The second data is stored at a second location, and the second PDR is associated with the second location. The method includes generating a pointer between the first PDR and the second PDR, and accessing the first PDR using the pointer in response to a read command indicating a time prior to the second timestamp.
    • 一种用于存储系统中的连续数据保护的方法,包括接收第一写入命令以将第一数据写入到逻辑卷的分区,然后生成具有第一时间戳的第一分区描述符记录(PDR)。 该方法还包括将第一数据存储在第一位置,将第一PDR与第一位置相关联,以及在第一命令之后接收第二写入命令,以用第二数据更新第一数据。 响应于第二命令,产生具有第二时间戳的第二PDR。 第二数据被存储在第二位置,并且第二PDR与第二位置相关联。 该方法包括在第一PDR和第二PDR之间生成指针,以及响应于指示第二时间戳之前的时间的读取命令,使用指针访问第一PDR。