Brett A Quinn

US Patent:

7024528, Apr 4, 2006

Filed:

Aug 21, 2002

Appl. No.:

10/225021

Inventors:

Douglas E. LeCrone - Hopkinton MA, US
Brett A. Quinn - Lincoln RI, US
Ronald G. Haupert - Circle Pines MN, US
Gary H. Cox - Franklin MA, US
Eugene D. Pflueger - Medfield MA, US

Assignee:

EMC Corporation - Hopkinton MA

International Classification:

G06F 12/16

US Classification:

711162, 707204

Abstract:

Described are techniques used in performing data replication processing. Data is replicated on a recovery site from a production site. When a disaster occurs, the state of the replication processing is determined and a restart copy of the data is made available from the recover site. Processing continues based on whether protection mode is desired such that the system executes using the recovery site as the restart with a replicated copy of the data. Data is propagated from the recovery site to the production site to resume operations and replication processing originating from the production site.

US Patent:

7117386, Oct 3, 2006

Filed:

Aug 21, 2002

Appl. No.:

10/224918

Inventors:

Douglas E. LeCrone - Hopkinton MA, US
Brett A. Quinn - Lincoln RI, US
Ronald G. Haupert - Circle Pines MN, US
Gary H. Cox - Franklin MA, US
Eugene D. Pflueger - Medfield MA, US

Assignee:

EMC Corporation - Hopkinton MA

International Classification:

G06F 11/00

US Classification:

714 6

Abstract:

Described are techniques used in performing data replication processing. Data is replicated on a recovery site from a production site. When a disaster occurs, the state of the replication processing is determined and a restart copy of the data is made available from the recover site. Processing continues based on whether protection mode is desired such that the system executes using the recovery site as the restart with a replicated copy of the data. Data is propagated from the recovery site to the production site to resume operations and replication processing originating from the production site.

US Patent:

7430646, Sep 30, 2008

Filed:

Mar 31, 2006

Appl. No.:

11/396336

Inventors:

Gary H. Cox - Franklin MA, US
Douglas E. Lecrone - Hopkinton MA, US
Brett A. Quinn - Lincoln RI, US

Assignee:

EMC Corporation - Hopkinton MA

International Classification:

G06F 12/00
G06F 11/00

US Classification:

711162, 711E12103, 714 6

Abstract:

A primary group may be swapped with a synchronous backup group where triangular asynchronous replication is being provided between the primary group, the synchronous backup group and an asynchronous backup group. Swapping may include halting work at the primary group, transferring pending mirrored data from the primary group to an asynchronous backup group, creating a data mirroring relationship between a storage volume at the synchronous backup group and a storage volume at the asynchronous backup group, reversing a data mirroring relationship between the storage volume at the primary group and the storage volume at the synchronous backup group, and resuming work at the asynchronous backup group.

US Patent:

7607037, Oct 20, 2009

Filed:

Aug 15, 2006

Appl. No.:

11/504423

Inventors:

Douglas E. LeCrone - Hopkinton MA, US
Brett A. Quinn - Lincoln RI, US
Ronald G. Haupert - Circle Pines MN, US
Gary H. Cox - Franklin MA, US
Eugene D. Pflueger - Medfield MA, US

Assignee:

EMC Corporation - Hopkinton MA

International Classification:

G06F 11/00

US Classification:

714 6

Abstract:

Described are techniques used in performing data replication processing. Data is replicated on a recovery site from a production site. When a disaster occurs, the state of the replication processing is determined and a restart copy of the data is made available from the recover site. Processing continues based on whether protection mode is desired such that the system executes using the recovery site as the restart with a replicated copy of the data. Data is propagated from the recovery site to the production site to resume operations and replication processing originating from the production site.

US Patent:

7647525, Jan 12, 2010

Filed:

Mar 31, 2006

Appl. No.:

11/394665

Inventors:

Douglas E. Lecrone - Hopkinton MA, US
Gary H. Cox - Franklin MA, US
Brett A. Quinn - Lincoln RI, US

Assignee:

EMC Corporation - Hopkinton MA

International Classification:

H02H 3/05

US Classification:

714 6, 711162

Abstract:

Handling failure of a primary group at a first data center that is part of plurality of data centers providing triangular asynchronous replication includes creating a data mirroring relationship between at least one storage volume at a second data center having a synchronous backup group that is part of the plurality of data centers and at least one storage volume at a third data center having an asynchronous backup group that is part of the plurality of data centers and resuming work at the third data center. Handling failure of a primary group at a first data center may also include synchronizing the at least one storage volume at the second data center with the at least one storage volume at the third data center prior to resuming work at the third data center.

US Patent:

7657718, Feb 2, 2010

Filed:

Dec 22, 2005

Appl. No.:

11/315922

Inventors:

Douglas E. LeCrone - Hopkinton MA, US
Brett A. Quinn - Lincoln RI, US
Ronald G. Haupert - Circle Pines MI, US
Gary H. Cox - Franklin MA, US
Eugene D. Pflueger - Medfield MA, US

Assignee:

EMC Corporation - Hopkinton MA

International Classification:

G06F 12/16

US Classification:

711162, 707204

Abstract:

Described are techniques used in performing data replication processing. Data is replicated on a recovery site from a production site. When a disaster occurs, the state of the replication processing is determined and a restart copy of the data is made available from the recover site. Processing continues based on whether protection mode is desired such that the system executes using the recovery site as the restart with a replicated copy of the data. Data is propagated from the recovery site to the production site to resume operations and replication processing originating from the production site.

US Patent:

7680997, Mar 16, 2010

Filed:

Dec 29, 2006

Appl. No.:

11/648772

Inventors:

Mike Specht - Acton MA, US
Mark J. Halstead - Holliston MA, US
Douglas E. Lecrone - Hopkinton MA, US
Marik Marshak - Newton MA, US
Brett A. Quinn - Lincoln RI, US
Gary H. Cox - Franklin MA, US
Benjamin W. Yoder - Framingham MA, US

Assignee:

EMC Corporation - Hopkinton MA

International Classification:

G06F 12/00

US Classification:

711162, 711167, 714 6

Abstract:

Handling failure of a primary group at a first data center may be simulated by cloning the at least one storage volume at a second data center, cloning at least one storage volume at a third data center, cloning at least one of: buffers used for providing data to the asynchronous backup group and maps used to maintain a record of data sent to the synchronous backup group but not yet sent to the asynchronous backup group; and simulating resuming work at one of the second data center and the third data center using at least one of clones of the buffers and clones of the maps.

US Patent:

7734884, Jun 8, 2010

Filed:

Dec 29, 2006

Appl. No.:

11/648734

Inventors:

Marik Marshak - Newton MA, US
Mark J. Halstead - Holliston MA, US
Douglas E. LeCrone - Hopkinton MA, US
Gary H. Cox - Franklin MA, US
Brett A. Quinn - Lincoln RI, US
Mike Specht - Acton MA, US
Benjamin W. Yoder - Framingham MA, US

Assignee:

EMC Corporation - Hopkinton MA

International Classification:

G06F 12/00

US Classification:

711162, 711167, 714 6

Abstract:

Providing storage configurations for a data center includes providing synchronous data transfer from the data center to a local destination, establishing a first connection between the data center and a remote destination to provide chunks of data from the data center to a remote destination, establishing a second connection between the local destination and the remote destination to provide chunks of data from the local destination to the remote destination, and enabling at least one of the first and second connections to transfer chunks of data to the remote destination.