公开(公告)号：GB2554605A

公开(公告)日：2018-04-04

申请号：GB201719444

申请日：2016-05-03

Applicant: IBM

Inventor： JOHN GLENN THOMPSON ,  DAVID PETERSEN ,  GAIL ANDREA SPEAR ,  ALAN GEORGE MCCLURE ,  MICHAEL FRANKENBERG ,  MICHAEL BRANDNER ,  DANIEL ROMAN

IPC: G06F11/20

Abstract: Provided are a computer program product, system, and method for performing a failover between a first storage system(102a) and a second storage system(102b). Data is synchronized between the first storage system(102a) and the second storage system(102b). A failover is performed from the first storage system(102a) to the second storage system(102b) in response to a failover event at the first storage system(102a) while synchronizing the data. A determination is made that a first storage unit of the first storage system(102a) is inoperable and that a second storage unit of the first storage system(102a) is operable in response to the failover event. In response to determining that the second storage unit is operable, a resynchronization is initiated to copy updates to a second storage unit of the first storage system(102a) by mirroring the second storage unit of the second storage system(102b) to the second storage unit of the first storage system(102a).

公开(公告)号：GB2554605B

公开(公告)日：2018-09-26

申请号：GB201719444

申请日：2016-05-03

Applicant: IBM

Inventor： JOHN GLENN THOMPSON ,  DAVID PETERSEN ,  GAIL ANDREA SPEAR ,  ALAN GEORGE MCCLURE ,  MICHAEL FRANKENBERG ,  MICHAEL BRANDNER ,  DANIEL ROMAN

IPC: G06F11/20

Abstract: Provided are a computer program product, system, and method for performing a failover between a first storage system and a second storage system. Data is synchronized between the first storage system and the second storage system. A failover is performed from the first storage system to the second storage system in response to a failover event at the first storage system while synchronizing the data. A determination is made that a first storage unit of the first storage system is inoperable and that that a second storage unit of the first storage system is operable in response to the failover event. In response to determining that the second storage unit is operable, a resynchronization is initiated to copy updates to a second storage unit of the second storage system mirroring the second storage unit of the first storage system to the second storage unit of the first storage system.

公开(公告)号：SG112104A1

公开(公告)日：2005-06-29

申请号：SG200407445

申请日：2004-11-17

Applicant: IBM

Inventor： JAMES CHIEN-CHIUNG CHEN ,  GAIL ANDREA SPEAR ,  MINH-NGOC LE HUYNH ,  CHUNG MAN FUNG ,  PATRICIA CHING LU ,  DUNG DANG

IPC: G06F13/14 ,  G06F12/00 ,  G06F13/18 ,  G06F15/16 ,  G06F15/173

Abstract: Disclosed is a technique for assigning priorities. A request to manipulate data is received. A type of the request is determined. A priority is assigned to the request based on the type of the request.