1
John P Agombar, Christopher B E Beeken, Carlos F Fuente, William J Scales: Method for optimizing cleaning of maps in FlashCopy cascades containing incremental maps. International Business Machines Corporation, Randall J Bluestone, Roberts Mlotkowski Safran & Cole P C, July 24, 2012: US08230185 (9 worldwide citation)

A method implemented in a computer infrastructure having computer executable code having programming instructions tangibly embodied on a computer readable storage medium. The programming instructions are operable to determine whether a target disk of a map contains data unavailable to a downstream d ...


2
Christopher B Beeken, William J Scales: Maintaining multiple target copies. International Business Machines Corporation, Janaki K Davda, Konrad Raynes Davda & Victor, May 6, 2014: US08719523 (5 worldwide citation)

Provided are techniques for maintaining instant virtual copies. A request to perform an instant virtual copy operation to create an instant virtual copy from a first volume to a new volume is received. It is determined that the first volume has not been modified since a last instant virtual copy ope ...


3
John P Agombar, Christopher B Beeken, William J Scales, John P Wilkinson: Multiple cascaded backup process. International Business Machines Corporation, David W Victor, Konrad Raynes Davda & Victor, July 29, 2014: US08793453 (4 worldwide citation)

Provided are a method, system, and a computer program product handling a backup process. An instruction initiates a new backup from a source volume to a target volume using one of a plurality of backup processes. A cascade includes a cascade source volume and at least one cascade target volume, and ...


4
Joanna K Brown, Matthew J Fairhurst, William J Scales, Mark B Thomas: System and method for transforming an in-use raid array including migrating data using reserved extents. International Business Machines Corporation, Zilka Kotab PC, November 24, 2015: US09195412 (3 worldwide citation)

A system is provided for transforming an in-use RAID array from a first array configuration having a first parameter to a second array configuration having a second parameter while preserving a logical data structure of the RAID array. The system includes an extent reservation component, and a data ...


5
John P Agombar, Christopher B E Beeken, Carlos F Fuente, William J Scales: Storage system with improved multiple copy targeting. International Business Machines Corporation, Lieberman & Brandsdorfer, June 5, 2012: US08195620 (3 worldwide citation)

A storage control apparatus cooperable with a plurality of controlled storage apparatus arranged in a cascade of point-in-time copy relationship. The apparatus includes: a rate control component operable to set a desired rate for making clean a first target one of the plurality of controlled storage ...


6
John P Agombar, Christopher B Beeken, Carlos F Fuente, William J Scales: Point-in-time copies in a cascade using maps and fdisks. International Business Machines Corporation, Konrad Raynes Davda & Victor, April 1, 2014: US08688936 (2 worldwide citation)

A technique for handling a FlashCopy® process includes receiving a FlashCopy® instruction for a source disk, performing a FlashCopy® point in time copy of the source disk on to a target disk, creating a map specifying the FlashCopy® point in time copy from the source disk to the target disk, creatin ...


7
Christopher B Beeken, William J Scales: Maintaining multiple target copies. International Business Machines Corporation, Janaki K Davda, Konrad Raynes Davda and Victor, May 20, 2014: US08732419 (2 worldwide citation)

Provided are techniques for maintaining instant virtual copies. A request to perform an instant virtual copy operation to create an instant virtual copy from a first volume to a new volume is received. It is determined that the first volume has not been modified since a last instant virtual copy ope ...


8
John P Agombar, Christopher B E Beeken, Carlos F Fuente, William J Scales: Method for optimizing cleaning of maps in flashcopy cascades containing incremental maps. International Business Machines Corporation, Randall Bluestone, Roberts Mlotkowski Safran & Cole P C, March 24, 2015: US08990529 (2 worldwide citation)

A method for optimizing cleaning of maps in storage cascades includes determining whether a target disk of a map contains data unavailable to a downstream disk from an upstream disk in a cascade and detect whether the downstream disk has a copy of the data. Additionally, the method includes copying ...


9
Praveen K Padia, William J Scales, Rohit Shekhar: Storage area network multi-pathing. International Business Machines Corporation, Konrad Raynes Davda & Victor, David W Victor, May 20, 2014: US08732334 (2 worldwide citation)

Provided are a method, computer program product and system for network multi-pathing. Paths to a storage system are through a first network type and a second network type. The first network type has a higher Input/Output (I/O) per second performance characteristic than the second network type. A len ...


10
Christopher B E Beeken, Carlos F Fuente, Colin R Jewell, William J Scales: Apparatus and method for data backup. International Business Machines Corporation, Griffiths & Seaton PLLC, June 18, 2013: US08468316 (2 worldwide citation)

A backup control apparatus for periodic data backup, in a virtualized storage system having a point-in-time copy function operable to copy first data into a cascade, comprises a storage targeting component for selecting a target virtual disk for one of a full copy or an incremental copy of the first ...