Donald R Halley

7139884, Nov 21, 2006

Jun 5, 2003

10/454953

Donald R. Halley - Rochester MN, US
Paul Douglas Koeller - Rochester MN, US

International Business Machines Corporation - Armonk NY

G06F 12/16

711161, 711162, 714 6, 707204, 710 57, 710112

A method, apparatus and computer program product are provided for implementing enhanced autonomic data backup using multiple backup devices. A media definition object is defined for saving predefined user selections including a default backup format to be used, an order to process the libraries, a library exception size, and a maximum number of backup devices to be used serially. A list of libraries is generated by either a user specified order of the libraries or a size order of the libraries from largest to smallest. Each library in the generated list of libraries is processed to form at least one library queue of a serial device wait queue and a parallel device wait queue. A process IO procedure is called until backup completes for each library from the at least one library queue.

7996370, Aug 9, 2011

Dec 13, 2007

11/956028

Mark John Anderson - Oronoco MN, US
Donald R. Halley - Rochester MN, US
Paul Douglas Koeller - Rochester MN, US
Ritchie Lee Nyland - Rochester MN, US
Kathryn Rose Steinbrink - Chatfield MN, US

International Business Machines Corporation - Armonk NY

G06F 17/30

707674, 707781, 714 15, 714 16

A method, apparatus, and program product restore database data having dependencies or ordering sensitivities, or that incorporates a database index. Unresolved dependencies are identified in response to an attempt to restore data in a computer. The data restoration is deferred and the data is cached when it has an unresolved dependency. After the dependency is resolved, the data restoration is completed. The unresolved dependency may be based-on data that must be restored or created prior to completing restoration. Deferred data is cached in memory and tracked in a deferred operation table. Data that is deferred may be accessed so long as operations that access the underlying based-on data are denied.

61548529, Nov 28, 2000

Jun 10, 1998

9/095476

Daniel L. Amundson - Rochester MN
Donald Ray Halley - Rochester MN
Paul Douglas Koeller - Rochester MN
Leonard William Koser - Rochester MN
Lynda Marie Smith - Rochester MN

International Business Machines Corporation - Armonk NY

G06F 1100

714 5

A method, computer program product and apparatus are provided for data backup and recovery in a computer system. The data backup and recovery method uses a plurality of tape drives in parallel. A unique token is associated with each data object being saved to a tape media. While saving backup data to the plurality of tape drives, a dynamic load balancer dynamically balances the load between the plurality of tape drives. While recovering backup data from tape media, the unique token is utilized for processing tape media files in any order. Data segments of one or more objects are distributed across the parallel tape devices and are non-serial across the tape media files used. When recovering backup data from tape media, the same number or fewer tape drives than used during data saving can be used.