公开(公告)号：WO2003056426A3

公开(公告)日：2003-07-10

申请号：PCT/US2002/041534

申请日：2002-12-23

Applicant: STORAGE TECHNOLOGY CORPORATION

Inventor： HOSTETTER, David, G. ,  MILILLO, Michael, S. ,  JOHNSON, Jennifer ,  WEST, Christopher, J.

IPC: G06F9/46

Abstract: A data processing system, computer program product, and data processing system for providing an adjustable level of synchronicity between duplicated transactions is disclosed. An acceptable level of lag between transactions is specified. Duplicated transactions performed at redundant systems are allowed to lag behind the corresponding transactions at the primary system by the specified amount of lag. Lag may be measured in terms of number of transactions, an amount of data, amount of time, or using any other suitable metric.

公开(公告)号：EP1269317A2

公开(公告)日：2003-01-02

申请号：EP01920758.8

申请日：2001-03-23

Applicant: Storage Technology Corporation

Inventor： MILILLO, Michael, S. ,  HOSTETTER, David, G. ,  PRIVRATSKY, Brad, D. ,  JOHNSON, Jennifer, T.

IPC: G06F11/14

CPC classification number: G06F11/2082 ,  G06F11/2069

Abstract: A method for use in a peer to peer remote copy (PPRC) system having primary and secondary storage systems to make data available from established PPRC storage volume pairs includes isolating (88) the secondary storage system to be in a stand alone state such that access from any storage systems and hosts is prevented. It is then determined if each storage volume of the secondary storage system is part of an established PPRC storage volume pair (92). Each established PPRC storage volume pair is then terminated (94) such that the storage volumes of the secondary storage system that are part of the established PPRC storage volume pairs are accessible to hosts. The secondary storage system is then made available to hosts (100) to effect data recovery of the established PPRC storage volumes.

公开(公告)号：EP1356371A2

公开(公告)日：2003-10-29

申请号：EP01963964.0

申请日：2001-08-13

Applicant: Storage Technology Corporation

Inventor： MILILLO, Michael, S. ,  HOSTETTER, David, G. ,  KELLY, Michael, S. ,  WEST, Christopher, J.

IPC: G06F3/06 ,  G06F11/14

CPC classification number: G06F3/065 ,  G06F3/0605 ,  G06F3/0656 ,  G06F3/067

Abstract: A method and apparatus in a data processing system for copying data. A request is received to copy data from a first storage system to second storage system, wherein the request identifies a source volume on the first storage system and a target volume on the second storage system and wherein data is located on a first source volume in the first storage system. Data is transferred to a second source volume in the first storage system. A pair is automatically established between the second source volume and the target volume. The data for the request is copied from the second source volume to the target volume after the pair has been automatically established. The pair is terminated after the data has been copied to the target volume. The requestor originating the request is notified of the result of the copy operation.

公开(公告)号：EP1248979A2

公开(公告)日：2002-10-16

申请号：EP01908650.3

申请日：2001-01-18

Applicant: Storage Technology Corporation

Inventor： MILILLO, Michael, S. ,  BEAL, David ,  HOSTETTER, David, G. ,  WEST, Christopher, J. ,  TALLMAN, Peter, H. ,  SEGURA, Theresa, L. ,  STATES, Scott, A.

IPC: G06F11/14

CPC classification number: G06F11/2074

Abstract: A method and apparatus for transferring data from a first storage system (500) to a second storage system (512) in which the first storage system includes a first plurality of storage devices (502-506) and the second storage system includes a second plurality of storage devices (514-518). Data is transferred using a pair of devices selected for transferring data for all of the storage devices. Data to be transferred from source storage devices (502-506) within the first plurality of storage devices is placed or queued on a selected primary storage device (508) within the first plurality of storage devices. The data is sent to a selected secondary storage device (520) within the plurality of storage devices. The data is relocated from the selected secondary storage device to target storage devices (514-518) within the second plurality of storage devices.