公开(公告)号：EP2369485B1

公开(公告)日：2013-04-03

申请号：EP11161660.3

申请日：2009-04-20

Applicant: Hitachi Ltd.

Inventor： Tanaka Katsuya ,  Shimada Kentaro

IPC: G06F11/20

CPC classification number: G06F11/201

公开(公告)号：EP2369485A1

公开(公告)日：2011-09-28

申请号：EP11161660.3

申请日：2009-04-20

Applicant: Hitachi Ltd.

Inventor： Tanaka Katsuya ,  Shimada Kentaro

IPC: G06F11/20

CPC classification number: G06F11/201

Abstract: The present invention relates to a storage device in which the MR-IOV is applied to an internal network of a storage controller. Data path failover can be executed in the storage device. The internal network of the storage controller is configured to enable the access of a virtual function (VF) "VF 0:0, 1" of each endpoint device (EDO-ED2) from a root port RP0. Likewise, "VF 1:0, 1" of each endpoint device can be accessed from a root port RP1. In a first data path from the RP0 to ED0 in a normal state, "VF 0:0, 1" and "MVF 0, 0" are connected by VF mapping. When a failure occurs on the first data path, the MR-PCIM executes the VF migration, whereby in the second data path from the RP1 to ED0, "VF 1:0, 1" and "MVF 0, 0" are connected by VF mapping. As a result, failover to the second data path is realized.

Abstract translation: 本发明涉及其中所述MR-IOV是施加到一个存储控制器的内部网络的存储装置。 数据路径故障切换可以在存储装置中执行。 所述存储控制器的内部网络被配置为使得一个虚拟功能（VF）“VF 0：0,1”的访问从根端口RP0每个端点设备（EDO-ED2）的。 同样地，“VF 1：0,1”每个端点设备可以从根端口RP1进行访问。 在从RP0到ED0在正常状态下的第一数据路径，“VF 0：0,1”和“MVF 0,0”通过VF映射连接。 当第一数据路径上发生了故障的，则MR-PCIM执行VF迁移，由此在从RP1到ED0，“VF 1：0,1”第二数据路径和“MVF 0,0”通过VF连接 映射。 其结果是，故障转移到第二数据路径实现。