首页> 外国专利> ASYNCHRONOUS LOCAL AND REMOTE CREATION OF CONSISTENT TIME-POINT-MOMENT COPIES IN CONSISTENCY GROUPS

ASYNCHRONOUS LOCAL AND REMOTE CREATION OF CONSISTENT TIME-POINT-MOMENT COPIES IN CONSISTENCY GROUPS

机译：一致性组中一致的时间点拷贝的本地和远程异步创建

页面导航

摘要
著录项
相似文献

摘要

A primary storage controller for use with a host and a primary storage system at a first location, the primary storage system including a primary storage controller and at least one storage unit controlled by the primary storage controller and configured to store a plurality of data units, and having a secondary storage system at a second location remote from the first location, the secondary storage system having a secondary storage control device and at least one storage unit which is controlled by the secondary storage control device and is configured to store a plurality of data units, the primary A storage control device has a data replication logic which includes: a data mirroring logic which is designed to convert data from a first data unit which is stored in a storage unit of the primary storage system, as to mirror synchronously to a second data unit, which is stored in a storage unit of the secondary storage system, and to mirror data asynchronously from a third data unit, which is stored in a storage unit of the primary storage system, to a fourth data unit, which is stored in a storage unit of the secondary storage system is stored; andconsistency group logic configured to generate a consistency group of data units from storage units of the secondary storage system with respect to storage units of the primary storage system; moment copy generation logic configured to assign a command to create a locally and remotely located pair of moment copy relationships receive that includes a local point-in-time-moment-copy relationship in the primary storage system from the first data unit as a moment-copy source to the third data unit as a moment-copy destination and a remote point-in-time-moment copy relationship in the secondary storage system from the second data unit as a momentary copy source to the fourth data unit as a momentary copy destination, and in response to the command to create a locally and remotely located pair, initiate a locally and remotely located pair of moment-copy relationships, the moment-copy creation Generation logic includes: a state determination logic which is configured to determine a state of a process for forming a consistency group upon receiving the command to create a locally and remotely located pair as at least one of a plurality of states, the plurality of states being an inactive state and includes a cleanup state, wherein an inactive state is present in which no consistency group including the second and fourth data units is actively formed, and wherein a cleanup state is present in which a consistency group that includes the second and / or the fourth data unit includes, actively forms; anda delay logic configured to delay establishing the remote point in time-moment copy relationship when it is determined that the state of a process for forming a consistency group is in a cleanup state in which a consistency group that includes the second and / or the fourth data unit includes actively training in a cleanup state upon receiving the command to create a locally and remotely located pair.

机译：与主机和第一位置的主存储系统一起使用的主存储控制器，该主存储系统包括主存储控制器和至少一个由主存储控制器控制并配置为存储多个数据单元的存储单元，该第二存储系统具有第二存储系统，该第二存储系统在远离该第一位置的第二位置处，该第二存储系统具有第二存储控制设备和至少一个由该第二存储控制设备控制并被配置为存储多个数据的存储单元。存储控制设备具有数据复制逻辑，该数据复制逻辑包括：数据镜像逻辑，该数据镜像逻辑被设计为转换来自存储在主存储系统的存储单元中的第一数据单元的数据，以便同步镜像到存储单元。第二数据单元，存储在辅助存储系统的存储单元中，并从第三数据单元w异步镜像数据hich被存储在主存储系统的存储单元中，到第四数据单元，其被存储在辅助存储系统的存储单元中;一致性组逻辑，用于从所述二级存储系统的存储单元相对于所述主存储系统的存储单元生成数据单元的一致性组;瞬间复制生成逻辑，配置为分配命令以创建一对本地和远程的瞬间复制关系，该命令包括从第一数据单元在瞬间在主存储系统中的本地时间点-瞬间复制关系，作为瞬间-将源复制到作为瞬时复制目标的第三数据单元，以及在辅助存储系统中从作为瞬时复制源的第二数据单元到作为瞬时复制目标的第四数据单元的远程时间点复制关系以及响应于创建本地和远程对的命令，启动本地和远程对的时刻副本关系，时刻副本创建生成逻辑包括：状态确定逻辑，配置为确定状态的逻辑。一种用于在接收到将创建本地和远程对的命令作为多个状态中的至少一个时形成一致性组的过程，所述多个状态是不正确的该状态包括清理状态，其中存在不活跃状态，其中没有主动形成包括第二和第四数据单元的一致性组，并且其中存在清理状态，其中其中包括第二和/或第二数据单元的一致性组第四数据单元包括主动表格;延迟逻辑，被配置为当确定形成一致性组的过程的状态为清理状态时，延迟建立时时刻复制关系中的远程点，其中，所述一致性组包括第二和/或第四数据单元包括在收到创建本地和远程对的命令后，主动在清理状态下进行训练。

著录项

公开/公告号DE112018003084B4

专利类型
公开/公告日2020-10-08

原文格式PDF
申请/专利权人 INTERNATIONAL BUSINESS MACHINES CORPORATION;
展开▼

申请/专利号DE20181103084T
发明设计人 JOSHUA CRAWFORD;NEDLAYA YAZZIE FRANCISCO;GREGORY MCBRIDE;NICOLAS MARC CLAYTON;CAROL MELLGREN;THERESA MARY BROWN;MATTHEW WARD;THEODORE TIMOTHY HARRIS JR.;DAMIAN TRUJILLO;
展开▼

申请日2018-07-24
分类号G06F11/14;
国家 DE
入库时间 2022-08-21 11:01:34

相似文献

专利
外文文献
中文文献