公开(公告)号：WO2005031578A3

公开(公告)日：2005-10-06

申请号：PCT/EP2004051850

申请日：2004-08-19

Applicant: IBM ,  IBM UK ,  SPEAR GAIL ANDREA ,  BARTFAI ROBERT FRANCIS ,  LIN EDWARD HSIU-WEI ,  MICKA WILLIAM FRANK ,  GLUCK OLYMPIA ,  ZLOTNICK AVIAD ,  FACTOR MICHAEL ,  JARVIS THOMAS CHARLES ,  WERNER SAM CLARK

Inventor： SPEAR GAIL ANDREA ,  BARTFAI ROBERT FRANCIS ,  LIN EDWARD HSIU-WEI ,  MICKA WILLIAM FRANK ,  GLUCK OLYMPIA ,  ZLOTNICK AVIAD ,  FACTOR MICHAEL ,  JARVIS THOMAS CHARLES ,  WERNER SAM CLARK

IPC: G06F11/14 ,  G06F11/20

CPC classification number: G06F11/2064 ,  G06F11/2071 ,  G06F11/2074 ,  G06F2201/82

Abstract: Provided are a method, system, and program for forming a consistency group of data. Information is provided on a consistency group relationship indicating a plurality of slave controllers and, for each indicated slave controller, a slave storage unit managed by the slave controller. A command is transmitted to each slave controller in the consistency group relationship to cause each slave controller to transmit data in the slave storage unit to a remote storage in a manner that forms the consistency group. A determination is made as to whether all the slave controllers successfully transmitted the data in the slave storage units that is part of the consistency group to the remote storage.

Abstract translation: 提供了用于形成一致性数据组的方法，系统和程序。 在指示多个从属控制器的一致性组关系上提供信息，并且对于每个指示的从属控制器，提供由从属控制器管理的从属存储单元的信息。 以一致性组关系向每个从控制器发送命令，以使每个从控制器以形成一致性组的方式将从存储单元中的数据传输到远程存储器。 确定所有从属控制器是否成功地将作为一致性组的一部分的从属存储单元中的数据传输到远程存储装置。

公开(公告)号：AT338303T

公开(公告)日：2006-09-15

申请号：AT04766037

申请日：2004-06-11

Applicant: IBM

Inventor： STANLEY WARREN ,  MICKA WILLIAM FRANK ,  WERNER SAM CLARK ,  TAL SIVEN ,  SPEAR GAIL ANDREA ,  BROWN THERESA MARY ,  SANCHEZ MATTHEW ,  RAHAV SHELI ,  JARVIS THOMAS CHARLES ,  HAYARDENY AMIRAM ,  TZAFRIR DALIT ,  FIENBLIT SHACHAR ,  MATOSEVICH RIVKA MAYRAZ ,  SHUKEVICH SVETLANA ,  NURIEL IFAT

IPC: G06F11/14 ,  G06F11/20

Abstract: Disclosed is a technique for reducing an amount of data transferred. A first indicator is maintained for each source block of data to indicate whether the source block of data has been updated in source storage since the source block of data was last transferred to target storage. A second indicator is maintained for each target block of data in target storage to indicate whether the target block of data has been updated in target storage since the target block of data was overwritten by a corresponding source block of data. When transferring data from the source storage to the target storage, each source block of data for which a first indicator has been set to indicate that the source block of data has been updated is transferred and each source block of data that corresponds to a target block of data for which a second indicator has been set to indicate that the target block of data has been updated is transferred.

公开(公告)号：SG143043A1

公开(公告)日：2008-06-27

申请号：SG2004032827

申请日：2004-06-03

Applicant: IBM

Inventor： WERNER SAM CLARK ,  MICKA WILLIAM FRANK ,  TAI SIVAN ,  NURIEL IFAT ,  RAHAV SHELI ,  SPEAR GAIL ANDREA ,  STANLEY WARREN K

IPC: G06F11/14 ,  G06F12/16

Abstract: Method, System, and Article of Manufacture for Consistent Copying of Storage Volumes Provided are a method, system, and article of manufacture for copying storage. Copy operations are performed logical on source storage volumes (108a, 108b) to copy to logical target storage volumes (112a, 112b), wherein the copy operations create a consistent copy of the logical storage volumes (108a, 108b) in the logical target storage volumes (112a, 112b). While performing a copy operation to copy from one logical source storage volume (108a) to one target logical storage volume (112a), a write operation is restricted from being performed on the one logical source storage volume (108a), until the copy operations have been performed on the logical source storage volumes.