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1. 发明授权

US07139927B2 Journaling and recovery method of shared disk file system 有权
标题翻译：共享磁盘文件系统的日记恢复方法
公开(公告)号：US07139927B2
公开(公告)日：2006-11-21
申请号：US10244521
申请日：2002-09-17
申请人： Choon Seo Park , Gyoung Bae Kim , Bum Joo Shin , Yong-Ju Lee , Seon-Yeong Park
发明人： Choon Seo Park , Gyoung Bae Kim , Bum Joo Shin , Yong-Ju Lee , Seon-Yeong Park
IPC分类号： G06F11/00
CPC分类号： G06F11/1474 , G06F11/1471
摘要： A journaling method is provided for supporting a recovery when a system is abnormally terminated in a shared disk environment. When a system call operation to take part in a journaling is generated, in order to guarantee a recovery, a transaction is started and new transaction region is assigned. Then, a system is initialized and a transaction type is set up. Lock information on modified data is acquired and added to the transaction so that a transaction manages lock information. A reflection to a disk during a modification of metadata is prevented. Modified metadata added to the transaction and modified information on principal general data are recorded. Then, lock information connected to the transaction is released.
摘要翻译：提供了一种日志记录方法，用于在系统在共享磁盘环境中异常终止时支持恢复。当生成参与日志记录的系统调用操作时，为了保证恢复，事务被启动并且新的事务区被分配。然后，系统被初始化并设置了事务类型。获取修改数据的锁定信息并将其添加到事务中，以便事务管理锁定信息。在修改元数据期间防止对盘的反射。记录添加到事务中的修改后的元数据和主要通用数据的修改信息。然后，锁定与事务相关的信息被释放。

2. 发明授权

US06961739B2 Method for managing directories of large-scale file system 有权
标题翻译：管理大型文件系统目录的方法
公开(公告)号：US06961739B2
公开(公告)日：2005-11-01
申请号：US10190588
申请日：2002-07-09
申请人： Yong Ju Lee , Gyoung Bae Kim , Bum Joo Shin
发明人： Yong Ju Lee , Gyoung Bae Kim , Bum Joo Shin
IPC分类号： G06F17/30
CPC分类号： G06F17/30091 , Y10S707/99953 , Y10S707/99956
摘要： The present invention relates to the method for managing directories of a large-scale file system. The present invention the steps of creating root blocks which have a fixed global depth, calculating an index value which shows the location information on how many bits will be referenced for root blocks from the global depth through a hash function when root blocks are completely filled with directories, calculating the block numbers of leaf blocks consisted of extent blocks based on a plurality fixed length platform which are logical and successive objects using the index value and storing the block numbers sequentially to the root blocks, and storing the directory entries of root blocks separately in leaf blocks.As a result, the present invention can improve the search performance by minimizing the cause of frequently change of data storage structure of the file system and flexibly preventing creation of indirect blocks.
摘要翻译：本发明涉及用于管理大规模文件系统的目录的方法。本发明创建具有固定全局深度的根块的步骤，计算索引值，该索引值示出了当根块完全填充时通过散列函数显示根据块从全局深度引用的根块的位置信息的位置信息目录，计算基于多个固定长度平台的扩展块的块号，该多个固定长度平台是使用索引值的逻辑和连续对象，并且将块号顺序存储到根块，并分别存储根块的目录条目在叶块。结果，本发明可以通过最小化文件系统的数据存储结构的频繁变化的原因并灵活地防止创建间接块来提高搜索性能。

3. 发明授权

US06718436B2 Method for managing logical volume in order to support dynamic online resizing and software raid and to minimize metadata and computer readable medium storing the same 有权
标题翻译：用于管理逻辑卷的方法，以便支持动态在线调整大小和软件突袭，并最小化元数据和存储该数据的计算机可读介质
公开(公告)号：US06718436B2
公开(公告)日：2004-04-06
申请号：US10005604
申请日：2001-12-07
申请人： Chang-Soo Kim , Gyoung Bae Kim , Bum Joo Shin
发明人： Chang-Soo Kim , Gyoung Bae Kim , Bum Joo Shin
IPC分类号： G06F1300
CPC分类号： G06F3/0601 , G06F2003/0697
摘要： A method for managing a logical volume for minimizing a size of metadata and supporting dynamic online resizing and software redundant array of independent disks (RAID), and a computer-readable recording medium storing instructions for embodying the method, are disclosed. The method includes the metadata having a disk partition table containing information of a disk partition in which the metadata is stored; a logical volume table for maintaining the information of the logical volume by storing duplicated information of the logical volume onto all disk partitions of the logical volume; an extent allocation table for indicating whether each extent in the disk partitions is used or not; and a mapping table for maintaining a mapping information for a physical address space corresponding to a logical address space which is a continuous address space equal in size of storage space of whole logical volume.
摘要翻译：公开了一种用于管理用于最小化元数据大小并支持动态在线调整大小和独立磁盘的软件冗余阵列（RAID）的逻辑卷的方法，以及存储用于体现该方法的指令的计算机可读记录介质。该方法包括具有包含其中存储元数据的磁盘分区的信息的磁盘分区表的元数据; 逻辑卷表，用于通过将逻辑卷的重复信息存储在逻辑卷的所有磁盘分区上来维护逻辑卷的信息; 用于指示磁盘分区中的每个盘区是否被使用的盘区分配表; 以及映射表，用于维护与作为整个逻辑卷的存储空间的大小相等的连续地址空间的逻辑地址空间对应的物理地址空间的映射信息。

4. 发明授权

US06901478B2 Raid system and mapping method thereof 有权
标题翻译： Raid系统及其映射方法
公开(公告)号：US06901478B2
公开(公告)日：2005-05-31
申请号：US10232747
申请日：2002-09-03
申请人： Yuhyeon Bak , Chang-Soo Kim , Gyoung Bae Kim , Bum Joo Shin
发明人： Yuhyeon Bak , Chang-Soo Kim , Gyoung Bae Kim , Bum Joo Shin
IPC分类号： G06F3/06 , G06F12/00 , G06F12/08
CPC分类号： G06F3/0632 , G06F3/0607 , G06F3/0689
摘要： A system having RAID levels includes a storage medium, a memory and a CPU. The storage medium has at least two disks. The memory stores a striping zone information table of total disks in which a physical address of data recorded in a disk of the storage medium is converted into a logic address. The CPU modifies a striping zone information table stored in the memory in case a new disk is added to the storage medium, stores the modified striping zone information table in the memory, converts a logic address of data to be written/read out from the stored table into a physical address in response to the disk writing/reading instructions, searches positions of a corresponding disk D and a physical block B and controls writing or reading out data.
摘要翻译：具有RAID级别的系统包括存储介质，存储器和CPU。存储介质具有至少两个盘。存储器存储总磁盘的条带区信息表，其中记录在存储介质的盘中的数据的物理地址被转换成逻辑地址。如果将新的磁盘添加到存储介质中，则CPU修改存储在存储器中的条带区信息表，将修改的条带区信息表存储在存储器中，将存储的数据的逻辑地址转换为要写入/读出的数据响应于磁盘写入/读取指令将表转换成物理地址，搜索对应的盘D和物理块B的位置，并控制写入或读出数据。

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