Hot data management method based on hit counter
    2.
    发明授权
    Hot data management method based on hit counter 有权
    基于命中计数器的热数据管理方法

    公开(公告)号:US08126997B2

    公开(公告)日:2012-02-28

    申请号:US12507327

    申请日:2009-07-22

    IPC分类号: G06F15/173

    摘要: Provided is a hot data management method based on hit counter, which prevents loads from being concentrated on a specific data server due to hot data by efficiently managing the hot data in the asymmetric storage system. Each of data servers of an asymmetric storage system checks hit counter for data stored in the corresponding data server to maintain hit counter information on the data in a latest state. The data server transmits the hit counter information to a metadata server at predetermined intervals. The data server makes or deletes a copy of the data according to the determination of the metadata server whether the data is hot data.

    摘要翻译: 提供了一种基于命中计数器的热数据管理方法,其通过有效地管理非对称存储系统中的热数据来防止由于热数据而将负载集中在特定数据服务器上。 非对称存储系统的每个数据服务器对存储在相应数据服务器中的数据检查命中计数器,以在最新状态下维护关于数据的命中计数器信息。 数据服务器以预定间隔将命中计数器信息发送到元数据服务器。 数据服务器根据元数据服务器确定数据是否为热数据,创建或删除数据副本。

    Method of calculating parity in asymetric clustering file system
    3.
    发明授权
    Method of calculating parity in asymetric clustering file system 有权
    计算非对称聚类文件系统中奇偶校验的方法

    公开(公告)号:US08972779B2

    公开(公告)日:2015-03-03

    申请号:US13309752

    申请日:2011-12-02

    IPC分类号: G06F11/00 G06F11/10

    摘要: Disclosed is a method of calculating parity. The method dividing, by a client system, a file which is to be stored into chunks of a preset size and distributively storing the chunks in a plurality of data servers; sending, by the client system, a data write complete notification message to a metadata server; storing, by the metadata server, a file sent through the data write complete notification message in a recovery queue; and sending, by the metadata server, a random data server a parity calculation request for the file stored in the recovery queue.

    摘要翻译: 公开了一种计算奇偶校验的方法。 该方法由客户端系统划分要被存储为预定大小的块并将多个数据分组存储在多个数据服务器中的文件; 由客户端系统向元数据服务器发送数据写入完成通知消息; 由元数据服务器将通过数据写入完成通知消息发送的文件存储在恢复队列中; 并且由元数据服务器向随机数据服务器发送存储在恢复队列中的文件的奇偶校验计算请求。

    HOT DATA MANAGEMENT METHOD BASED ON HIT COUNTER
    4.
    发明申请
    HOT DATA MANAGEMENT METHOD BASED ON HIT COUNTER 有权
    基于HIT计数器的热数据管理方法

    公开(公告)号:US20100161780A1

    公开(公告)日:2010-06-24

    申请号:US12507327

    申请日:2009-07-22

    IPC分类号: G06F15/173

    摘要: Provided is a hot data management method based on hit counter, which prevents loads from being concentrated on a specific data server due to hot data by efficiently managing the hot data in the asymmetric storage system. Each of data servers of an asymmetric storage system checks hit counter for data stored in the corresponding data server to maintain hit counter information on the data in a latest state. The data server transmits the hit counter information to a metadata server at predetermined intervals. The data server makes or deletes a copy of the data according to the determination of the metadata server whether the data is hot data.

    摘要翻译: 提供了一种基于命中计数器的热数据管理方法,其通过有效地管理非对称存储系统中的热数据来防止由于热数据而将负载集中在特定数据服务器上。 非对称存储系统的每个数据服务器对存储在相应数据服务器中的数据检查命中计数器,以在最新状态下维护关于数据的命中计数器信息。 数据服务器以预定间隔将命中计数器信息发送到元数据服务器。 数据服务器根据元数据服务器确定数据是否为热数据,创建或删除数据副本。

    Apparatus, system and method for recovering meta data using fragmentary information
    5.
    发明授权
    Apparatus, system and method for recovering meta data using fragmentary information 有权
    使用零碎信息恢复元数据的装置,系统和方法

    公开(公告)号:US08606759B2

    公开(公告)日:2013-12-10

    申请号:US13192343

    申请日:2011-07-27

    IPC分类号: G06F7/00

    摘要: Disclosed are an apparatus, a system, and a method for recovering meta data using fragmentary information. The system for recovering meta data includes: a data server storing recovery information for recovering at least one data file and meta data related to each of the data file; and a meta data server storing the meta data related to the data files and receiving the recovery information from the data server when the meta data are lost to recover the lost meta data. By this configuration, the exemplary embodiment of the present invention stably can the lost meta data of the meta data server by using the recovery the meta data and prevent the phenomenon that the meta data collides with each other on the same directory hierarchical structure.

    摘要翻译: 公开了一种使用零碎信息来恢复元数据的装置,系统和方法。 用于恢复元数据的系统包括:数据服务器,存储用于恢复至少一个数据文件的恢复信息和与每个数据文件有关的元数据; 以及元数据服务器,存储与数据文件相关的元数据,并且当元数据丢失时从数据服务器接收恢复信息以恢复丢失的元数据。 通过该配置,本发明的示例性实施例通过使用恢复元数据来稳定地保留元数据服务器的丢失元数据,并且防止元数据在相同目录分层结构上彼此冲突的现象。

    Method of constructing liquefied gas storage tank on land
    6.
    发明授权
    Method of constructing liquefied gas storage tank on land 有权
    陆上液化气储罐的建造方法

    公开(公告)号:US08627636B2

    公开(公告)日:2014-01-14

    申请号:US12627969

    申请日:2009-11-30

    摘要: The present disclosure relates to a method of constructing a liquefied gas storage tank on land, which enables rapid and easy construction of walls of a cylindrical storage tank by stacking a plurality of pre-produced unit-wall structures to be stacked or superposed with respect to one another. The method includes: producing unit-wall structures made of concrete and each having iron rods arranged lengthwise and breadthwise therein, stacking the unit-wall structures in a cylindrical arrangement, and connecting the unit-wall structures adjacent and in longitudinal and lateral directions with respect to each other to form a wall of the storage tank.

    摘要翻译: 本公开涉及一种在陆地上构造液化气储罐的方法,其通过将多个预先制造的单元壁结构堆叠或叠加在一起而能够快速和容易地构造圆柱形储罐壁, 另一个。 该方法包括:制造由混凝土制成的单元壁结构,每个单元壁结构纵向和纵向布置在其中,将单元壁结构堆叠成圆柱形布置,并且将单元壁结构相邻和纵向和横向相互连接, 彼此形成储罐的壁。

    Hardware acceleration apparatus for iSCSI target system using TOE and method for performing read/write command using the apparatus
    10.
    发明授权
    Hardware acceleration apparatus for iSCSI target system using TOE and method for performing read/write command using the apparatus 有权
    使用TOE的iSCSI目标系统的硬件加速装置和使用该装置执行读/写命令的方法

    公开(公告)号:US07676607B2

    公开(公告)日:2010-03-09

    申请号:US11636046

    申请日:2006-12-08

    IPC分类号: G06F3/00 G06F13/00

    摘要: Provided is a hardware acceleration apparatus for an iSCSI target system including a local memory storing data transmitted between a disk storage device and a network system, a TOE controller performing TCP/IP stack offloading on a TCP/IP packet of data stored in the local memory, a network controller allowing data offloaded from the local memory to be transmitted to the network system using an iSCSI protocol or allowing data received from the network system to be stored in the local memory, and a disk controller storing and withdrawing data between the disk storage device and the local memory.

    摘要翻译: 提供了一种用于iSCSI目标系统的硬件加速装置,其包括存储在盘存储装置和网络系统之间传输的数据的本地存储器,在存储在本地存储器中的数据的TCP / IP分组上执行TCP / IP堆栈卸载的TOE控制器 允许从本地存储器卸载数据的网络控制器使用iSCSI协议向网络系统发送或允许从网络系统接收到的数据存储在本地存储器中;以及磁盘控制器,其在磁盘存储器之间存储和取出数据 设备和本地内存。