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    • 3. 发明申请
    • SYSTEM AND METHOD FOR UPDATING FILE
    • 用于更新文件的系统和方法
    • US20090150395A1
    • 2009-06-11
    • US12187466
    • 2008-08-07
    • Myung-Hoon CHASang-Min LeeYoung-Kyun KimJune KimMyung-Joon Kim
    • Myung-Hoon CHASang-Min LeeYoung-Kyun KimJune KimMyung-Joon Kim
    • G06F7/06G06F17/30
    • G06F17/30176
    • Provided is a system and method for updating a plurality of the same files consistently. The file update system comprises a first and a second data servers formed as pipe line type network for storing an original file and a duplicate file of the original file respectively, and for updating both the original file and the duplicate file in response to an update request, wherein the first and the second data servers mutually exchange file update information, correct the file update information so as to prevent overlapped update due to a plurality of update requests for the same file, and then update the original file or the duplicate file according to the corrected file update information.
    • 提供一种用于一致地更新多个相同文件的系统和方法。 文件更新系统包括形成为管线型网络的第一和第二数据服务器,用于分别存储原始文件和原始文件的重复文件,并且用于响应于更新请求更新原始文件和重复文件 其中,所述第一数据服务器和所述第二数据服务器相互交换文件更新信息,更正所述文件更新信息,以防止由于对所述相同文件的多个更新请求而产生的重叠更新,然后根据所述文件更新信息更新所述原始文件或所述重复文件 更正的文件更新信息。
    • 4. 发明申请
    • FILE STORAGE SYSTEM AND METHOD FOR MANAGING DUPLICATE FILES IN FILE STORAGE SYSTEM
    • 用于在文件存储系统中管理复制文件的文件存储系统和方法
    • US20090157769A1
    • 2009-06-18
    • US12140302
    • 2008-06-17
    • Sang-Min LEEMyung-Hoon ChaYoung-Kyun KimMyung-Joon Kim
    • Sang-Min LEEMyung-Hoon ChaYoung-Kyun KimMyung-Joon Kim
    • G06F12/02G06F17/30
    • G06F17/3015G06F11/2094
    • Provided are a file storage system, and a method for managing duplicate files in the file storage system. The file storage system that performs file duplication for error recovery includes a client for requesting generation of a duplicate file of a new file being stored, a metadata server for storing information associated with prestored duplicate files and determining whether a file that is identical to the new file is present among the prestored duplicate files, to limit a number of identical duplicate files to a preset number, and a data server comprising a file duplication unit and a storage unit for respectively performing file duplication and file storage under the control of the metadata server. Accordingly, file recovery can be performed while duplicate files in the system are minimized.
    • 提供了文件存储系统和用于管理文件存储系统中的重复文件的方法。 执行用于错误恢复的文件复制的文件存储系统包括用于请求生成正在存储的新文件的重复文件的客户端,用于存储与预先存储的重复文件相关联的信息的元数据服务器,以及确定与新的文件是否相同的文件 文件存在于预先存储的重复文件中,以将多个相同的重复文件限制为预设号码,以及包括文件复制单元和存储单元的数据服务器,用于分别在元数据服务器的控制下执行文件复制和文件存储 。 因此,可以在系统中的重复文件最小化的同时执行文件恢复。
    • 5. 发明授权
    • System and method for updating file
    • 更新文件的系统和方法
    • US08019729B2
    • 2011-09-13
    • US12187466
    • 2008-08-07
    • Myung-Hoon ChaSang-Min LeeYoung-Kyun KimJune KimMyung-Joon Kim
    • Myung-Hoon ChaSang-Min LeeYoung-Kyun KimJune KimMyung-Joon Kim
    • G06F7/00G06F17/00G06F17/30
    • G06F17/30176
    • Provided is a system and method for updating a plurality of the same files consistently. The file update system comprises a first and a second data servers formed as pipe line type network for storing an original file and a duplicate file of the original file respectively, and for updating both the original file and the duplicate file in response to an update request, wherein the first and the second data servers mutually exchange file update information, correct the file update information so as to prevent overlapped update due to a plurality of update requests for the same file, and then update the original file or the duplicate file according to the corrected file update information.
    • 提供一种用于一致地更新多个相同文件的系统和方法。 文件更新系统包括形成为管线型网络的第一和第二数据服务器,用于分别存储原始文件和原始文件的重复文件,并且用于响应于更新请求更新原始文件和重复文件 其中,所述第一数据服务器和所述第二数据服务器相互交换文件更新信息,更正所述文件更新信息,以防止由于对所述相同文件的多个更新请求而产生的重叠更新,然后根据所述文件更新信息更新所述原始文件或所述重复文件 更正的文件更新信息。
    • 6. 发明授权
    • File storage system and method for managing duplicate files in file storage system
    • 用于管理文件存储系统中重复文件的文件存储系统和方法
    • US08103636B2
    • 2012-01-24
    • US12140302
    • 2008-06-17
    • Sang-Min LeeMyung-Hoon ChaYoung-Kyun KimMyung-Joon Kim
    • Sang-Min LeeMyung-Hoon ChaYoung-Kyun KimMyung-Joon Kim
    • G06F7/00G06F17/00
    • G06F17/3015G06F11/2094
    • Provided are a file storage system, and a method for managing duplicate files in the file storage system. The file storage system that performs file duplication for error recovery includes a client for requesting generation of a duplicate file of a new file being stored, a metadata server for storing information associated with prestored duplicate files and determining whether a file that is identical to the new file is present among the prestored duplicate files, to limit a number of identical duplicate files to a preset number, and a data server comprising a file duplication unit and a storage unit for respectively performing file duplication and file storage under the control of the metadata server. Accordingly, file recovery can be performed while duplicate files in the system are minimized.
    • 提供了文件存储系统和用于管理文件存储系统中的重复文件的方法。 执行用于错误恢复的文件复制的文件存储系统包括用于请求生成正在存储的新文件的重复文件的客户端,用于存储与预先存储的重复文件相关联的信息的元数据服务器,以及确定与新的文件是否相同的文件 文件存在于预先存储的重复文件中,以将多个相同的重复文件限制为预设号码,以及包括文件复制单元和存储单元的数据服务器,用于分别在元数据服务器的控制下执行文件复制和文件存储 。 因此,可以在系统中的重复文件最小化的同时执行文件恢复。
    • 9. 发明申请
    • APPARATUS AND METHOD OF MANAGING METADATA IN ASYMMETRIC DISTRIBUTED FILE SYSTEM
    • 在不对称分布式文件系统中管理元数据的装置和方法
    • US20110153606A1
    • 2011-06-23
    • US12970900
    • 2010-12-16
    • Hong-Yeon KIMYoung-Kyun KimHan Namgoong
    • Hong-Yeon KIMYoung-Kyun KimHan Namgoong
    • G06F17/30
    • G06F16/1827
    • Provided are an apparatus and a method which can be easily implemented with flexibility enabling distributing all metadata of trees and files in an asymmetric distributed file system. The apparatus includes: a metadata storage unit storing metadata corresponding to a part of partitions of a virtual metadata address space storing metadata for directories and/or files for each of the partitions; and a metadata storage management unit controlling the metadata so that the metadata are stored in the metadata storage unit and manages a master map including information on the part of the partitions. Since all directories and files can be distributed to a plurality of metadata servers without a limitation, it is possible to prevent a load from being concentrated on a predetermined metadata server. Metadata roles of the metadata servers are very simply readjusted and as a result, the load can be easily distributed in a partition level.
    • 提供了一种可以容易地实现的装置和方法,其灵活性使得能够在不对称分布式文件系统中分发树和文件的所有元数据。 该装置包括:元数据存储单元,存储对应于存储用于每个分区的目录和/或文件的元数据的虚拟元数据地址空间的分区的一部分的元数据; 以及元数据存储管理单元,其控制元数据,使得元数据被存储在元数据存储单元中并且管理包括关于该分区的一部分的信息的主映射。 由于所有目录和文件都可以分配到多个元数据服务器而不受限制,因此可以防止负载集中在预定的元数据服务器上。 元数据服务器的元数据角色非常简单地重新调整,结果可以轻松地在分区级别分配负载。
    • 10. 发明授权
    • Apparatus and method of performing error recovering process in asymmetric clustering file system
    • 在不对称聚类文件系统中执行错误恢复过程的装置和方法
    • US08543864B2
    • 2013-09-24
    • US12971167
    • 2010-12-17
    • Sang-Min LeeYoung-Kyun KimHan Namgoong
    • Sang-Min LeeYoung-Kyun KimHan Namgoong
    • G06F11/00
    • G06F11/1092G06F2211/1028G06F2211/1059
    • The present invention relates to an apparatus and method of performing an error recovery process in an asymmetric clustering file system that has higher efficiency in data recovery when a data server in an asymmetric clustering file system fails than a method of processing the data recovery in the metadata server. The present invention includes receiving a chunk list requiring recovery by a data server included in the other data server groups than a data server group including a failed data server among a plurality of data server groups, requesting chunk data necessary for recovering an erroneous chunk from a data server in the other data server groups to the other data servers than the failed data server in the data server group, and recovering the erroneous chunk based on the chunk data by the data server in the other data server group.
    • 本发明涉及一种在不对称聚类文件系统中执行错误恢复过程的装置和方法,该系统在非对称聚类文件系统中的数据服务器故障时具有较高的数据恢复效率,而不是处理元数据中的数据恢复方法 服务器。 本发明包括接收需要由包括在其他数据服务器组中的数据服务器恢复的块列表,而不是包括多个数据服务器组中的故障数据服务器的数据服务器组,请求从一个数据服务器组中恢复错误块所需的块数据 其他数据服务器组中的数据服务器与数据服务器组中的故障数据服务器相对的其他数据服务器,并且由另一数据服务器组中的数据服务器基于块数据恢复错误块。