公开(公告)号：GB2578846B

公开(公告)日：2020-10-21

申请号：GB202000451

申请日：2018-07-24

Applicant: IBM

Inventor： JOSHUA CRAWFORD ,  NEDLAYA YAZZIE FRANCISCO ,  GREGORY MCBRIDE ,  NICOLAS MARC CLAYTON ,  CAROL MELLGREN ,  THERESA MARY BROWN ,  MATTHEW WARD ,  THEODORE TIMOTHY HARRIS JR ,  DAMIAN TRUJILLO

IPC: G06F11/20 ,  G06F3/06 ,  G06F16/27

公开(公告)号：GB2578846A

公开(公告)日：2020-05-27

申请号：GB202000451

申请日：2018-07-24

Applicant: IBM

Inventor： JOSHUA CRAWFORD ,  NEDLAYA YAZZIE FRANCISCO ,  GREGORY MCBRIDE ,  NICOLAS MARC CLAYTON ,  CAROL MELLGREN ,  THERESA MARY BROWN ,  MATTHEW WARD ,  THEODORE TIMOTHY HARRIS JR ,  DAMIAN TRUJILLO

IPC: G06F11/20 ,  G06F3/06 ,  G06F16/27

Abstract: A primary storage controller for use with a host and a primary storage system at a first location, the primary storage system having 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 a secondary storage system at a second location remote from the first location, the secondary storage system having a secondary storage controller and at least one storage unit controlled by the secondary storage controller and configured to store a plurality of data units, the primary storage controller comprising data replication logic which includes data mirroring logic, consistency group logic, snap copy generation logic, state determination logic and delay logic.