公开(公告)号：US20140115287A1

公开(公告)日：2014-04-24

申请号：US14141604

申请日：2013-12-27

Applicant: Infortrend Technology, Inc.

Inventor： Michael Gordon Schnapp ,  Ching-Hua Fang

IPC: G06F3/06

CPC classification number: G06F3/065 ,  G06F3/0619 ,  G06F3/067 ,  G06F11/2071 ,  G06F11/2082

Abstract: Method and apparatus for performing volume replication using a unified architecture are provided. Each volume has an exclusive volume log table (VLT) and an exclusive volume block update table (VBUT). The VLT is mainly used for recording the relationship between two volumes of a mirroring pair, and the VBUT is used for tracking the state of each data block of the volume itself. By means of the cross operations and applications between the VLT and the VBUT, various volume replication processes such as volume copying and volume mirroring can be enabled under a unified architecture. For each volume, different replication relationships with other volumes can be handled merely by administering its two exclusive tables. The method and the apparatus provided by the present invention can simplify the architecture for synchronization replication and reduce the burdens of administrating tables, thereby making the operation of a storage system more efficient.

Abstract translation: 提供了使用统一架构进行卷复制的方法和装置。 每个卷都有一个独占卷日志表（VLT）和一个排他卷块更新表（VBUT）。 VLT主要用于记录两个镜像对之间的关​​系，VBUT用于跟踪卷本身的每个数据块的状态。 通过VLT和VBUT之间的交叉操作和应用，可以在统一架构下启用各种卷复制过程，如卷复制和卷镜像。 对于每个卷，与其他卷的不同复制关系只能通过管理其两个独占表来处理。 本发明提供的方法和装置可以简化同步复制的架构，减轻管理表的负担，从而使存储系统的运行更有效率。

公开(公告)号：US20170153954A1

公开(公告)日：2017-06-01

申请号：US15429682

申请日：2017-02-10

Applicant: Infortrend Technology, Inc.

Inventor： Michael Gordon Schnapp ,  Ching-Hua Fang

IPC: G06F11/20 ,  G06F3/06

CPC classification number: G06F11/2066 ,  G06F3/0619 ,  G06F3/064 ,  G06F3/065 ,  G06F3/0665 ,  G06F3/067 ,  G06F11/2069 ,  G06F11/2074

Abstract: A method for remote asynchronous volume replication and apparatus therefor. Asynchronous replication is applied to handle data changes on the source volume on the local site incurred by Host IO requests. In coordination with the “point-in-time differential backup” technology, the original data in the block to be written by a host IO request will be backuped to Source BAS on the local site (backup-on-write operation) only when the original data being written into the block of the source volume is different from the data of the corresponding block of the destination volume on the remote site. As a result, once a new data is written into the source volume completely, the host will be responded that its Host IO request is completed. Therefore, the data necessarily transmitted to the destination volume can be minimized, and the problem of remote data transmission limited by network bandwidth can be prevented effectively.

公开(公告)号：US10379975B2

公开(公告)日：2019-08-13

申请号：US15429682

申请日：2017-02-10

Applicant: Infortrend Technology, Inc.

Inventor： Michael Gordon Schnapp ,  Ching-Hua Fang

IPC: G06F11/20 ,  G06F3/06

Abstract: A method for remote asynchronous volume replication and apparatus therefor. Asynchronous replication is applied to handle data changes on the source volume on the local site incurred by Host IO requests. In coordination with the “point-in-time differential backup” technology, the original data in the block to be written by a host IO request will be backuped to Source BAS on the local site (backup-on-write operation) only when the original data being written into the block of the source volume is different from the data of the corresponding block of the destination volume on the remote site. As a result, once a new data is written into the source volume completely, the host will be responded that its Host IO request is completed. Therefore, the data necessarily transmitted to the destination volume can be minimized, and the problem of remote data transmission limited by network bandwidth can be prevented effectively.

公开(公告)号：US09588892B2

公开(公告)日：2017-03-07

申请号：US14074734

申请日：2013-11-08

Applicant: Infortrend Technology, Inc.

Inventor： Michael Gordon Schnapp ,  Ching-Hua Fang

IPC: G06F12/08 ,  G06F3/06

CPC classification number: G06F3/0605 ,  G06F3/0631 ,  G06F3/0659 ,  G06F3/0665 ,  G06F3/0683 ,  G06F3/0689 ,  G06F12/0808 ,  G06F12/0891 ,  G06F2212/1004 ,  G06F2212/152 ,  G06F2212/262

Abstract: A method for generating a virtual volume (VV) in a storage system architecture. The architecture comprises a host and one or more disk array subsystems. Each subsystem comprises a storage controller. One or more of the subsystems comprises a physical storage device (PSD) array. The method comprises the following steps: mapping the PSD array into a plurality of media extents (MEs), each of the MEs comprises a plurality of sections; providing a virtual pool (VP) to implement a section cross-referencing function, wherein a section index (SI) of each of the sections contained in the VP is defined by the VP to cross-reference VP sections to physical ME locations; providing a conversion method or procedure or function for mapping VP capacity into to a VV; and presenting the VV to the host. A storage subsystem and a storage system architecture performing the method are also provided.

Abstract translation: 一种用于在存储系统架构中生成虚拟卷（VV）的方法。 该架构包括主机和一个或多个磁盘阵列子系统。 每个子系统包括存储控制器。 一个或多个子系统包括物理存储设备（PSD）阵列。 该方法包括以下步骤：将PSD阵列映射到多个媒体盘区（ME）中，每个ME包括多个部分; 提供虚拟池（VP）以实现部分交叉引用功能，其中由VP定义包含在VP中的每个部分的部分索引（SI）以将VP部分交叉引导到物理ME位置; 提供用于将VP容量映射到VV的转换方法或过程或功能; 并向主机呈现VV。 还提供了执行该方法的存储子系统和存储系统架构。

公开(公告)号：US09946460B2

公开(公告)日：2018-04-17

申请号：US15450009

申请日：2017-03-05

Applicant: Infortrend Technology, Inc.

Inventor： Michael Gordon Schnapp ,  Ching-Hua Fang

IPC: G06F3/06 ,  G06F12/0891

CPC classification number: G06F3/0605 ,  G06F3/0631 ,  G06F3/0659 ,  G06F3/0665 ,  G06F3/0683 ,  G06F3/0689 ,  G06F12/0808 ,  G06F12/0891 ,  G06F2212/1004 ,  G06F2212/152 ,  G06F2212/262

Abstract: A method for generating a virtual volume (VV) in a storage system architecture. The architecture comprises a host and one or more disk array subsystems. Each subsystem comprises a storage controller. One or more of the subsystems comprises a physical storage device (PSD) array. The method comprises the following steps: mapping the PSD array into a plurality of media extents (MEs), each of the MEs comprises a plurality of sections; providing a virtual pool (VP) to implement a section cross-referencing function, wherein a section index (SI) of each of the sections contained in the VP is defined by the VP to cross-reference VP sections to physical ME locations; providing a conversion method or procedure or function for mapping VP capacity into to a VV; and presenting the VV to the host. A storage subsystem and a storage system architecture performing the method are also provided.

公开(公告)号：US09483204B2

公开(公告)日：2016-11-01

申请号：US14141604

申请日：2013-12-27

Applicant: Infortrend Technology, Inc.

Inventor： Michael Gordon Schnapp ,  Ching-Hua Fang

IPC: G06F3/06 ,  G06F11/20

CPC classification number: G06F3/065 ,  G06F3/0619 ,  G06F3/067 ,  G06F11/2071 ,  G06F11/2082

Abstract: Method and apparatus for performing volume replication using a unified architecture are provided. Each volume has an exclusive volume log table (VLT) and an exclusive volume block update table (VBUT). The VLT is mainly used for recording the relationship between two volumes of a mirroring pair, and the VBUT is used for tracking the state of each data block of the volume itself. By means of the cross operations and applications between the VLT and the VBUT, various volume replication processes such as volume copying and volume mirroring can be enabled under a unified architecture. For each volume, different replication relationships with other volumes can be handled merely by administering its two exclusive tables. The method and the apparatus provided by the present invention can simplify the architecture for synchronization replication and reduce the burdens of administrating tables, thereby making the operation of a storage system more efficient.

Abstract translation: 提供了使用统一架构进行卷复制的方法和装置。 每个卷都有一个独占卷日志表（VLT）和一个排他卷块更新表（VBUT）。 VLT主要用于记录两个镜像对之间的关​​系，VBUT用于跟踪卷本身的每个数据块的状态。 通过VLT和VBUT之间的交叉操作和应用，可以在统一架构下启用各种卷复制过程，如卷复制和卷镜像。 对于每个卷，与其他卷的不同复制关系只能通过管理其两个独占表来处理。 本发明提供的方法和装置可以简化同步复制的架构，减轻管理表的负担，从而使存储系统的运行更有效率。