公开(公告)号：US09280296B2

公开(公告)日：2016-03-08

申请号：US13901082

申请日：2013-05-23

申请人： GLOBALFOUNDRIES U.S. 2 LLC

发明人： Joshua J. Crawford ,  Theodore T. Harris, Jr. ,  Matthew J. Kalos ,  Gail A. Spear ,  John G. Thompson ,  Matthew J. Ward

IPC分类号： G06F12/16 ,  G06F3/06

CPC分类号： G06F3/065 ,  G06F3/0614 ,  G06F3/0683 ,  G06F11/1448 ,  G06F11/2071 ,  G06F2201/82 ,  G06F2201/835

摘要： A primary storage controller receives an input/output (I/O) command from a host, wherein a host timestamp is associated with the I/O command. During a mirroring of storage volumes to a secondary storage controller, the primary storage controller communicates the host timestamp associated with the I/O command to the secondary storage controller, wherein mirrored copies of the storage volumes are timestamped based on at least the host timestamp and an elapsed time since a last host I/O command. A recovery is made from a failure of one or more of the storage volumes in the primary storage controller, by using the timestamped mirrored copies of the storage volumes.

摘要翻译： 主存储控制器从主机接收输入/输出（I / O）命令，其中主机时间戳与I / O命令相关联。 在将存储卷镜像到辅助存储控制器期间，主存储控制器将与I / O命令相关联的主机时间戳传送到辅助存储控制器，其中存储卷的镜像副本至少基于主机时间戳和时间戳， 自上次主机I / O命令以来经过的时间。 通过使用存储卷的时间戳记镜像副本，从主存储控制器中的一个或多个存储卷的故障进行恢复。