公开(公告)号：EP1796003A3

公开(公告)日：2007-06-27

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.

公开(公告)号：EP1674980A2

公开(公告)日：2006-06-28

申请号：EP05027917.3

申请日：2005-12-20

Applicant: Infortrend Technology, Inc.

Inventor： Pang, Ching-Te ,  Schnapp, Michael Gordon ,  Sue, Shiann-Wen ,  Lee, Cheng-Yu

IPC: G06F3/06

CPC classification number: G06F3/0617 ,  G06F3/0635 ,  G06F3/0664 ,  G06F3/0689 ,  G06F11/2041 ,  G06F11/2089 ,  G06F11/2092 ,  G06F11/2094

Abstract: A redundant external storage virtualization computer system. The redundant storage virtualization computer system includes a host entity for issuing an IO request, a redundant external SAS storage virtualization controller pair coupled to the host entity for performing an IO operation in response to the IO request issued by the host entity, and a plurality of physical storage devices for providing storage space to the computer system. Each of the physical storage devices is coupled to the redundant storage virtualization controller pair through a SAS interconnect. The redundant storage virtualization controller pair includes a first and a second SAS storage virtualization controller both coupled to the host entity. In the redundant SAS storage virtualization controller pair, when the second storage virtualization controller is not on line, the first storage virtualization controller will take over the functionality originally performed by the second storage virtualization controller.

Abstract translation: 一个冗余的外部存储虚拟化计算机系统。 冗余存储虚拟化计算机系统包括用于发出IO请求的主机实体，耦合到主机实体的冗余外部SAS存储虚拟化控制器对，用于响应于主机实体发出的IO请求来执行IO操作，以及多个 为计算机系统提供存储空间的物理存储设备。 每个物理存储设备通过SAS互连耦合到冗余存储虚拟化控制器对。 冗余存储虚拟化控制器对包括耦合到主机实体的第一和第二SAS存储虚拟化控制器。 在冗余SAS存储虚拟化控制器对中，当第二存储虚拟化控制器不在线时，第一存储虚拟化控制器将接管最初由第二存储虚拟化控制器执行的功能。