公开(公告)号：EP2211267A2

公开(公告)日：2010-07-28

申请号：EP10151447.9

申请日：2010-01-22

Applicant: Infortrend Technology, Inc.

Inventor： Schnapp, Michael Gordon ,  Fang, Ching-Hua

IPC: G06F11/14 ,  G06F11/20

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

Abstract: A method and an 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. Specifically, for each volume, different replication relationships with other volumes can be handled merely by administering its two exclusive tables. Hence, the method and the apparatus provided by the present invention can advantageously 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: 本发明提供一种用于使用一个统一架构在卷复制执行方法和设备。 每个卷具有独占卷记录表（VLT）和专属的资料卷区块更新表（VBUT）。 该VLT主要用于记录镜像对两卷之间的关系，并且VBUT用于跟踪卷本身的每一数据块的状态。 由VLT与VBUT之间的互操作和应用的方式，各种体积的复制过程：如卷拷贝和镜像卷可以在单一架构下被启用。 具体而言，对于每个体积，用其他卷不同的复制关系可以仅仅通过管理其两个专属的表来处理。 因此，该方法和通过本发明提供的装置可有利地简化同步复制架构与减少施用表的负担，从而使存储系统的外科手术更高效。

公开(公告)号：EP2211263A3

公开(公告)日：2013-01-23

申请号：EP10151426.3

申请日：2010-01-22

Applicant: Infortrend Technology, Inc.

Inventor： Schnapp, Michael Gordon ,  Fang, Ching-Hua ,  Chou, Chia-Sheng

IPC: G06F3/06 ,  G06F17/30

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: Method for accessing data in a storage system architecture, the architecture comprises at least one disk array subsystem, comprising the following steps. Provide a SAS for managing a first and a second media extent (ME) the at least one subsystem. Obtain a location index corresponding to a host LBA via a BAT. Obtain a location information of a physical section located in the first ME corresponding to the location index via a physical section to virtual section cross-referencing functionality. Update the cross-reference in the cross-referencing functionality so that the location information obtained from the cross-referencing functionality corresponding to the location index is the location information of the second physical section. A host IO request addressing the host LBA accesses data in the second physical section utilizing the location information of the second physical section.

公开(公告)号：EP2214102B1

公开(公告)日：2012-11-28

申请号：EP10151435.4

申请日：2010-01-22

Applicant: Infortrend Technology, Inc.

Inventor： Schnapp, Michael Gordon ,  Fang, Ching-Hua

IPC: G06F11/20

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

公开(公告)号：EP2214102A1

公开(公告)日：2010-08-04

申请号：EP10151435.4

申请日：2010-01-22

Applicant: Infortrend Technology, Inc.

Inventor： Schnapp, Michael Gordon ,  Fang, Ching-Hua

IPC: G06F11/20

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 therefore are disclosed. Asynchronous replication is applied to deal with 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 data is subjected to 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 on the remote site can be minimized, and the problem of remote data transmission limited by network bandwidth can be prevented effectively, thereby keeping the operation performance of the storage system at a better level.

Abstract translation: 因此公开了用于远程异步卷复制的方法。 应用异步复制来处理主机IO请求引起的本地站点上的源卷上的数据更改。 与“时间差异备份”技术配合，只有当原始数据写入源的块时，数据才会被备份到本地站点上的源BAS（备份写操作） 卷与远程站点上目标卷的相应块的数据不同。 因此，一旦将新数据完全写入源卷，主机将响应其主机IO请求完成。 因此，必须将远程站点上传送到目的地卷的数据最小化，能够有效地防止由网络带宽限制的远程数据传输的问题，从而保持存储系统的运行性能更好。

公开(公告)号：EP1796003A2

公开(公告)日：2007-06-13

申请号：EP06023842.5

申请日：2006-11-16

Applicant: Infortrend Technology, Inc.

Inventor： Fang, Ching-Hua ,  Pang, Ching-Te

IPC: G06F11/20

CPC classification number: G06F11/2092 ,  G06F11/201 ,  H04L67/1097 ,  H04L69/40

Abstract: This invention discloses a storage virtualization subsystem and system with host-side redundancy via SAS connectivity. The I/O interconnect interface between the storage virtualization controller and the host is a serial-attached SCSI (SAS) interface. At least one SAS expander is inserted on the I/O interconnect path of the host side to provide the function of device expansion. Or, a built-in virtual SAS expander is disposed inside the storage virtualization controller to provide multiple virtual IDs for each SAS port. When one controller in the storage virtualization controller pair malfunctions or fails, the invention provides solutions in accord with different embodiments so that the surviving controller can inherit the ID of the failed one. Thus, the host can keep functioning normally as it is not aware of any change in the device status.

Abstract translation: 本发明公开了一种通过SAS连接具有主机侧冗余的存储虚拟化子系统和系统。 存储虚拟化控制器和主机之间的I / O互连接口是串行连接的SCSI（SAS）接口。 在主机侧的I / O互连路径上至少插入一个SAS扩展器，以提供设备扩展功能。 或者，内置虚拟SAS扩展器位于存储虚拟化控制器内部，为每个SAS端口提供多个虚拟ID。 当存储虚拟化控制器对中的一个控制器发生故障或故障时，本发明提供了根据不同实施例的解决方案，使得存活的控制器可以继承失败的控制器的ID。 因此，主机可以保持正常运行，因为它不知道设备状态有任何变化。

公开(公告)号：EP2211262A3

公开(公告)日：2013-01-09

申请号：EP10151411.5

申请日：2010-01-22

Applicant: Infortrend Technology, Inc.

Inventor： Schnapp, Michael Gordon ,  Fang, Ching-Hua

IPC: G06F3/06 ,  G06F17/30

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体系结构中生成虚拟卷（VV）的方法。 该体系结构包含主机和一个或多个磁盘阵列子系统。 每个子系统包含一个存储控制器 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扩展区（ME）中，每个ME包括多个区段; 提供虚拟池（VP）以实现区段交叉参考功能，其中VP中包含的每个区段的区段索引（SI）由VP定义以将VP区段交叉参考到物理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; 并将VV呈现给主机。 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：EP2211267B1

公开(公告)日：2012-03-14

申请号：EP10151447.9

申请日：2010-01-22

Applicant: Infortrend Technology, Inc.

Inventor： Schnapp, Michael Gordon ,  Fang, Ching-Hua

IPC: G06F11/14 ,  G06F11/20

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

公开(公告)号：EP2211267A3

公开(公告)日：2010-10-13

申请号：EP10151447.9

申请日：2010-01-22

Applicant: Infortrend Technology, Inc.

Inventor： Schnapp, Michael Gordon ,  Fang, Ching-Hua

IPC: G06F11/14 ,  G06F11/20

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

Abstract: A method and an 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. Specifically, for each volume, different replication relationships with other volumes can be handled merely by administering its two exclusive tables. Hence, the method and the apparatus provided by the present invention can advantageously simplify the architecture for synchronization replication and reduce the burdens of administrating tables, thereby making the operation of a storage system more efficient.

公开(公告)号：EP2211263A2

公开(公告)日：2010-07-28

申请号：EP10151426.3

申请日：2010-01-22

Applicant: Infortrend Technology, Inc.

Inventor： Schnapp, Michael Gordon ,  Fang, Ching-Hua ,  Chou, Chia-Sheng

IPC: 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: Method for accessing data in a storage system architecture, the architecture comprises at least one disk array subsystem, comprising the following steps. Provide a SAS for managing a first and a second media extent (ME) the at least one subsystem. Obtain a location index corresponding to a host LBA via a BAT. Obtain a location information of a physical section located in the first ME corresponding to the location index via a physical section to virtual section cross-referencing functionality. Update the cross-reference in the cross-referencing functionality so that the location information obtained from the cross-referencing functionality corresponding to the location index is the location information of the second physical section. A host IO request addressing the host LBA accesses data in the second physical section utilizing the location information of the second physical section.

Abstract translation: 用于访问存储系统体系结构中的数据的方法，该体系结构包括至少一个磁盘阵列子系统，包括以下步骤。 提供SAS用于管理第一和第二媒体区（ME）的至少一个子系统。 通过BAT获取与主机LBA对应的位置索引。 经由物理段到虚拟段交叉参考功能获得位于与位置索引对应的第一ME中的物理段的位置信息。 更新交叉引用功能中的交叉引用，以便从对应于位置索引的交叉引用功能获得的位置信息是第二个物理段的位置信息。 寻址主机LBA的主机IO请求利用第二物理段的位置信息访问第二物理段中的数据。

公开(公告)号：EP2211262A2

公开(公告)日：2010-07-28

申请号：EP10151411.5

申请日：2010-01-22

Applicant: Infortrend Technology, Inc.

Inventor： Schnapp, Michael Gordon ,  Fang, Ching-Hua

IPC: 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。