Elizabeth C Nichols

US Patent:

7150022, Dec 12, 2006

Filed:

May 9, 2005

Appl. No.:

11/125048

Inventors:

David R. Shutt - Bellevue WA, US
Elizabeth Ann Nichols - Seattle WA, US

Assignee:

Microsoft Corporation - Redmond WA

International Classification:

G06F 9/50
G06F 15/16
G06F 12/02

US Classification:

718105, 709215, 711173

Abstract:

Various embodiments of the present invention are directed toward extending a federation of servers and balancing the data load of said federation of servers, in order to improve accessibility and scope of the system by moving the first backup data structure on the second server to the new server, creating a second data structure on the new server, and creating a second backup data structure for the second data structure on the second server. To balance the load, certain embodiments employ a method comprising suspending writes to the selected logical partitions, copying selected logical partitions to the new physical partition, redirecting reads and writes to the logical partitions in the new physical partition, and removing the original selected logical partitions. Alternative embodiments for balancing data load comprise the substitute steps of creating a temporary replication stream for the selected logical partitions to the new physical partition, copying selected logical partitions to the new physical partition, deconflicting inconsistencies in the logical partitions on the new physical partition, redirecting reads and writes for the selected logical partitions to the logical partitions in the new physical partition, and removing the original selected logical partitions that were copied to the new physical partition.

US Patent:

7530073, May 5, 2009

Filed:

Feb 16, 2005

Appl. No.:

11/059828

Inventors:

David R. Shutt - Bellevue WA, US
Elizabeth Ann Nichols - Seattle WA, US

Assignee:

Microsoft Corporation - Redmond WA

International Classification:

G06F 12/02
G06F 9/50

US Classification:

718105, 709213, 709215, 711165, 718104

Abstract:

Various embodiments of the present invention are directed toward extending a federation of servers and balancing the data load of said federation of servers, in order to improve accessibility and scope of the system by moving the first backup data structure on the second server to the new server, creating a second data structure on the new server, and creating a second backup data structure for the second data structure on the second server. To balance the load, certain embodiments employ a method comprising suspending writes to the selected logical partitions, copying selected logical partitions to the new physical partition, redirecting reads and writes to the logical partitions in the new physical partition, and removing the original selected logical partitions. Alternative embodiments for balancing data load comprise the substitute steps of creating a temporary replication stream for the selected logical partitions to the new physical partition, copying selected logical partitions to the new physical partition, deconflicting inconsistencies in the logical partitions on the new physical partition, redirecting reads and writes for the selected logical partitions to the logical partitions in the new physical partition, and removing the original selected logical partitions that were copied to the new physical partition.

US Patent:

7921424, Apr 5, 2011

Filed:

Sep 13, 2005

Appl. No.:

11/225626

Inventors:

David R. Shutt - Bellevue WA, US
Elizabeth Ann Nichols - Seattle WA, US

Assignee:

Microsoft Corporation - Redmond WA

International Classification:

G06F 12/02
G06F 9/50

US Classification:

718105, 709215, 711165, 718104

Abstract:

Various embodiments of the present invention are directed toward extending a federation of servers and balancing the data load of said federation of servers, in order to improve accessibility and scope of the system by moving the first backup data structure on the second server to the new server, creating a second data structure on the new server, and creating a second backup data structure for the second data structure on the second server. To balance the load, certain embodiments employ a method comprising suspending writes to the selected logical partitions, copying selected logical partitions to the new physical partition, redirecting reads and writes to the logical partitions in the new physical partition, and removing the original selected logical partitions. Alternative embodiments for balancing data load comprise the substitute steps of creating a temporary replication stream for the selected logical partitions to the new physical partition, copying selected logical partitions to the new physical partition, deconflicting inconsistencies in the logical partitions on the new physical partition, redirecting reads and writes for the selected logical partitions to the logical partitions in the new physical partition, and removing the original selected logical partitions that were copied to the new physical partition.

US Patent:

6973654, Dec 6, 2005

Filed:

May 27, 2003

Appl. No.:

10/447046

Inventors:

David R. Shutt - Bellevue WA, US
Elizabeth Ann Nichols - Seattle WA, US

Assignee:

Microsoft Corporation - Redmond WA

International Classification:

G06F012/02
G06F009/50

US Classification:

718105, 718104, 709213, 709215, 711165

Abstract:

Various embodiments of the present invention are directed toward extending a federation of servers and balancing the data load of said federation of servers, in order to improve accessibility and scope of the system by moving the first backup data structure on the second server to the new server, creating a second data structure on the new server, and creating a second backup data structure for the second data structure on the second server. To balance the load, certain embodiments employ a method comprising suspending writes to the selected logical partitions, copying selected logical partitions to the new physical partition, redirecting reads and writes to the logical partitions in the new physical partition, and removing the original selected logical partitions. Alternative embodiments for balancing data load comprise the substitute steps of creating a temporary replication stream for the selected logical partitions to the new physical partition, copying selected logical partitions to the new physical partition, deconflicting inconsistencies in the logical partitions on the new physical partition, redirecting reads and writes for the selected logical partitions to the logical partitions in the new physical partition, and removing the original selected logical partitions that were copied to the new physical partition.