Snapshot creating method and apparatus
    1.
    发明授权
    Snapshot creating method and apparatus 有权
    快照创建方法和装置

    公开(公告)号:US07120767B2

    公开(公告)日:2006-10-10

    申请号:US10369690

    申请日:2003-02-21

    IPC分类号: G06F12/00

    摘要: In the storage-based snapshot creation, a block-selection specifying unit provided on a NAS processing unit specifies a block, which becomes necessary for the generation of snapshot data, to a specified-block analyzing unit within a disk apparatus. Moreover, a disk controller generates the snapshot data on the block specified as the snapshot target, while making an inquiry to the specified-block analyzing unit. This makes it possible to create the snapshot in a storage-capacity reduced manner, and to specify the snapshot creation in a partition, file, or directory unit.

    摘要翻译: 在基于存储的快照创建中,在NAS处理单元上设置的块选择指定单元将生成快照数据所需的块指定给盘装置内的指定块分析单元。 此外,磁盘控制器在指定为快照目标的块上产生快照数据,同时对指定块分析单元进行查询。 这使得可以以减少存储容量的方式创建快照,并在分区,文件或目录单元中指定快照创建。

    Snapshot creating method and apparatus
    2.
    发明授权
    Snapshot creating method and apparatus 有权
    快照创建方法和装置

    公开(公告)号:US07412578B2

    公开(公告)日:2008-08-12

    申请号:US11519877

    申请日:2006-09-13

    IPC分类号: G06F12/16

    摘要: In the storage-based snapshot creation, a block-selection specifying unit provided on a NAS processing unit specifies a block, which becomes necessary for the generation of snapshot data, to a specified-block analyzing unit within a disk apparatus. Moreover, a disk controller generates the snapshot data on the block specified as the snapshot target, while making an inquiry to the specified-block analyzing unit. This makes it possible to create the snapshot in a storage-capacity reduced manner, and to specify the snapshot creation in a partition, file, or directory unit.

    摘要翻译: 在基于存储的快照创建中,在NAS处理单元上设置的块选择指定单元将生成快照数据所需的块指定给盘装置内的指定块分析单元。 此外,磁盘控制器在指定为快照目标的块上产生快照数据,同时对指定块分析单元进行查询。 这使得可以以减少存储容量的方式创建快照,并在分区,文件或目录单元中指定快照创建。

    Snapshot creating method and apparatus
    3.
    发明申请
    Snapshot creating method and apparatus 有权
    快照创建方法和装置

    公开(公告)号:US20070011418A1

    公开(公告)日:2007-01-11

    申请号:US11519877

    申请日:2006-09-13

    IPC分类号: G06F12/16

    摘要: In the storage-based snapshot creation, a block-selection specifying unit provided on a NAS processing unit specifies a block, which becomes necessary for the generation of snapshot data, to a specified-block analyzing unit within a disk apparatus. Moreover, a disk controller generates the snapshot data on the block specified as the snapshot target, while making an inquiry to the specified-block analyzing unit. This makes it possible to create the snapshot in a storage-capacity reduced manner, and to specify the snapshot creation in a partition, file, or directory unit.

    摘要翻译: 在基于存储的快照创建中,在NAS处理单元上设置的块选择指定单元将生成快照数据所需的块指定给盘装置内的指定块分析单元。 此外,磁盘控制器在指定为快照目标的块上产生快照数据,同时对指定块分析单元进行查询。 这使得可以以减少存储容量的方式创建快照,并在分区,文件或目录单元中指定快照创建。

    Storage system
    4.
    发明授权
    Storage system 有权
    存储系统

    公开(公告)号:US07149922B2

    公开(公告)日:2006-12-12

    申请号:US10393293

    申请日:2003-03-21

    IPC分类号: G06F11/00

    摘要: A file server has plural NAS nodes having three processors dispersed in function, a shared cache memory shared between the plural NAS nodes and backed up by a battery, and plural storage devices. A log area for storing data with respect to an access request received by each NAS node is arranged in the shared cache memory. A network processor stores the data with respect to the access request to the log area, and transfers the data of the memory by a DMA at a reading time. Even when a failure is happened in a certain NAS node, another NAS node restores a file system using the log and continues processing to store the data with respect to the access request to the shared cache memory.

    摘要翻译: 文件服务器具有多个具有分散功能的处理器的NAS节点,在多个NAS节点之间共享并由电池备份的共享高速缓存存储器和多个存储设备。 用于存储关于由每个NAS节点接收的访问请求的数据的日志区域被布置在共享高速缓冲存储器中。 网络处理器将关于访问请求的数据存储到日志区域,并且在读取时间通过DMA传送存储器的数据。 即使在某个NAS节点发生故障时,另一个NAS节点使用该日志恢复文件系统,并继续处理以将关于访问请求的数据存储到共享高速缓冲存储器。

    Storage system, server apparatus, and method for creating a plurality of snapshots
    5.
    发明申请
    Storage system, server apparatus, and method for creating a plurality of snapshots 有权
    用于创建多个快照的存储系统,服务器装置和方法

    公开(公告)号:US20050027819A1

    公开(公告)日:2005-02-03

    申请号:US10808921

    申请日:2004-03-24

    IPC分类号: G06F15/16

    摘要: In a storage system with a server apparatus having at least one CPU, a memory, at least one network interface, and at least one storage interface, and, at least one disk connected to the storage interface, the server apparatus has a snapshot management part which maintains and manages snapshot of the disk apparatus, the disk apparatus has an operational volume which performs ordinary read/write and a differential volume which stores differential data of snapshot of the operational volume, the snapshot management part stores data on the operational volume in the differential volume, provides a preceding copy area to store its location information, and when free area on the differential volume becomes insufficient discards the stored location information and uses the preceding copy area as an free area.

    摘要翻译: 在具有至少一个CPU,存储器,至少一个网络接口和至少一个存储接口的服务器装置的存储系统中,以及连接到存储接口的至少一个盘,所述服务器装置具有快照管理部分 维护和管理磁盘装置的快照,磁盘装置具有执行普通读/写的操作量和存储操作卷的快照差异数据的差分卷,快照管理部存储关于操作卷的操作卷的数据 差分卷提供前一个复制区域来存储其位置信息,并且当差分卷上的空闲区域变得不足时,丢弃存储的位置信息,并将前一个复制区域用作空闲区域。

    Storage system, server apparatus, and method for creating a plurality of snapshots
    6.
    发明授权
    Storage system, server apparatus, and method for creating a plurality of snapshots 有权
    用于创建多个快照的存储系统,服务器装置和方法

    公开(公告)号:US07266654B2

    公开(公告)日:2007-09-04

    申请号:US10808921

    申请日:2004-03-24

    IPC分类号: G06F12/00

    摘要: In a storage system with a server apparatus having at least one CPU, a memory, at least one network interface, and at least one storage interface, and, at least one disk connected to the storage interface, the server apparatus has a snapshot management part which maintains and manages snapshot of the disk apparatus, the disk apparatus has an operational volume which performs ordinary read/write and a differential volume which stores differential data of snapshot of the operational volume, the snapshot management part stores data on the operational volume in the differential volume, provides a preceding copy area to store its location information, and when free area on the differential volume becomes insufficient discards the stored location information and uses the preceding copy area as an free area.

    摘要翻译: 在具有至少一个CPU,存储器,至少一个网络接口和至少一个存储接口的服务器装置的存储系统中,以及连接到存储接口的至少一个盘,所述服务器装置具有快照管理部分 维护和管理磁盘装置的快照,磁盘装置具有执行普通读/写的操作量和存储操作卷的快照差异数据的差分卷,快照管理部存储关于操作卷的操作卷的数据 差分卷提供前一个复制区域来存储其位置信息,并且当差分卷上的空闲区域变得不足时,丢弃存储的位置信息,并将前一个复制区域用作空闲区域。

    Storage system and control method
    7.
    发明授权
    Storage system and control method 失效
    存储系统和控制方法

    公开(公告)号:US06850955B2

    公开(公告)日:2005-02-01

    申请号:US10075270

    申请日:2002-02-15

    摘要: The invention provides both interfaces of SAN and NAS, prevents data miss even when a trouble occurs and makes it possible that an arbitrary number of NAS interfaces access the same file system with high performance. A storage system includes multiple interfaces for external connection, multiple disks accessed from multiple interfaces, and a shared memory accessed from multiple interfaces. The multiple interfaces are block interfaces executing disk block I/O request, and file interfaces of file servers executing file I/O request. A file system in the file servers is constructed in a part of the disks, and a log storage area holding change log of the file system, and a management file server information storage area holding information of managing file server performing exclusive access control of file system and management of log storage area are formed in the shared memory.

    摘要翻译: 本发明提供了SAN和NAS的两个接口,即使发生故障也能防止数据丢失,并且可以使任意数量的NAS接口以高性能访问相同的文件系统。 存储系统包括用于外部连接的多个接口,从多个接口访问的多个磁盘以及从多个接口访问的共享存储器。 多个接口是执行磁盘块I / O请求的块接口和执行文件I / O请求的文件服务器的文件接口。 文件服务器中的一个文件系统被构造在一部分磁盘中,一个日志存储区域保存该文件系统的更改日志,以及一个管理文件服务器信息存储区域,其中管理文件服务器执行文件系统的独占访问控制的信息 并且在共享存储器中形成日志存储区域的管理。

    Storage system and control method
    8.
    发明授权
    Storage system and control method 失效
    存储系统和控制方法

    公开(公告)号:US07424491B2

    公开(公告)日:2008-09-09

    申请号:US10958283

    申请日:2004-10-06

    IPC分类号: G06F17/30

    摘要: Interfaces of SAN and NAS, prevents data miss even when a trouble occurs and makes it possible that an arbitrary number of NAS interfaces access the same file system with high performance. A storage system includes multiple interfaces for external connection, multiple disks accessed from multiple interfaces, and a shared memory accessed from multiple interfaces. The multiple interfaces are block interfaces executing disk block I/O request, and file interfaces of file servers executing file I/O request. A file system in the file servers is constructed in a part of the disks, and a log storage area holding change log of the file system, and a management file server information storage area holding information of managing file server performing exclusive access control of file system and management of log storage area are formed in the shared memory.

    摘要翻译: SAN和NAS的接口,即使发生故障也能防止数据丢失,并且可以让任意数量的NAS接口以高性能访问同一个文件系统。 存储系统包括用于外部连接的多个接口,从多个接口访问的多个磁盘以及从多个接口访问的共享存储器。 多个接口是执行磁盘块I / O请求的块接口和执行文件I / O请求的文件服务器的文件接口。 文件服务器中的一个文件系统被构造在一部分磁盘中,一个日志存储区域保存该文件系统的更改日志,以及一个管理文件服务器信息存储区域,其中管理文件服务器执行文件系统的独占访问控制的信息 并且在共享存储器中形成日志存储区域的管理。

    Storage system and control method
    9.
    发明申请
    Storage system and control method 失效
    存储系统和控制方法

    公开(公告)号:US20050060330A1

    公开(公告)日:2005-03-17

    申请号:US10958283

    申请日:2004-10-06

    摘要: Interfaces of SAN and NAS, prevents data miss even when a trouble occurs and makes it possible that an arbitrary number of NAS interfaces access the same file system with high performance. A storage system includes multiple interfaces for external connection, multiple disks accessed from multiple interfaces, and a shared memory accessed from multiple interfaces. The multiple interfaces are block interfaces executing disk block I/O request, and file interfaces of file servers executing file I/O request. A file system in the file servers is constructed in a part of the disks, and a log storage area holding change log of the file system, and a management file server information storage area holding information of managing file server performing exclusive access control of file system and management of log storage area are formed in the shared memory.

    摘要翻译: SAN和NAS的接口,即使出现故障也可防止数据丢失,并且可以让任意数量的NAS接口以高性能访问同一个文件系统。 存储系统包括用于外部连接的多个接口,从多个接口访问的多个磁盘以及从多个接口访问的共享存储器。 多个接口是执行磁盘块I / O请求的块接口和执行文件I / O请求的文件服务器的文件接口。 文件服务器中的一个文件系统被构造在一部分磁盘中,一个日志存储区域保存该文件系统的更改日志,以及一个管理文件服务器信息存储区域,其中管理文件服务器执行文件系统的独占访问控制的信息 并且在共享存储器中形成日志存储区域的管理。

    File migration method based on access history
    10.
    发明申请
    File migration method based on access history 审中-公开
    基于访问历史的文件迁移方法

    公开(公告)号:US20050125456A1

    公开(公告)日:2005-06-09

    申请号:US10785995

    申请日:2004-02-26

    IPC分类号: G06F7/00 G06F17/30

    CPC分类号: G06F16/119 G06F16/1844

    摘要: The object of the present invention is to improve an access efficiency in a distributed environment. When a user “foo” access a file “file_1a” stored in a storage node SN1 under the control of a control node CN1 from a client CLN3 via a control node CN3 as shown by the solid lien arrow in the figure, a record of the access is accumulated in an access history of the control node CN1. If the control node CN1 refers to the access history and detects the frequent accesses from the control node CN3, it replicates or migrates the file “file_1a” to a storage node SN3 controlled by the control node CN3 as shown by the bold line arrow. The replication is performed if another device has accessed the file. Otherwise the migration is performed.

    摘要翻译: 本发明的目的是提高分布式环境中的访问效率。 当用户“foo”通过控制节点CN 3从客户端CLN 3访问在控制节点CN 1的控制下存储在存储节点SN 1中的文件“file_1a”,如图中的固态留置箭头所示, 在控制节点CN 1的访问历史中累积访问记录。 如果控制节点CN 1参考访问历史并且检测到来自控制节点CN 3的频繁访问,则它将文件“file_1a”复制或迁移到由控制节点CN 3控制的存储节点SN 3,如粗体 线箭头。 如果另一个设备已访问该文件,则执行复制。 否则执行迁移。