1
Harley Al Beier, Robert Frederic Kern, David Wayne Moore, Karen Alicia Ranson, Vern Lee Watts: Synchronizing recovery log having time stamp to a remote site for disaster recovery of a primary database having related hierarchial and relational databases. International Business Machines Corporation, Gray Cary Ware Freidenrich, May 16, 2000: US06065018 (247 worldwide citation)

A method and apparatus to synchronize recovery logs transmitted to a remote site for recovering related databases having different logical structuring. In one embodiment, the related databases are a hierarchial structured database such as IMS and a relational structured database such as DB2.


2
Robert Frederic Kern, Michael Aloysius Paulsen, William Chambers Shepard, Harry Morris Yudenfriend: Concurrent switch to shadowed device for storage controller and device errors. International Business Machines Corporation, Robert M Sullivan, February 9, 1999: US05870537 (155 worldwide citation)

A disaster recovery system providing remote data shadowing between a primary and a secondary site uses a method and apparatus for swapping, or switching, host directed I/O operations from a primary data storage device to a secondary data storage device in a remote copy duplex pair. Application progr ...


3
Robert Frederic Kern, Ronald Maynard Kern, Gregory Edward McBride, William Frank Micka, Claus William Mikkelsen, David Michael Shackelford, Robert Wesley Shomler: Forming consistency groups using self-describing record sets for remote data duplexing. International Business Machines Corporation, R M Sullivan, March 31, 1998: US05734818 (141 worldwide citation)

A remote data shadowing system provides storage based, real time disaster recovery capability. Record updates at a primary site cause write I/O operations in a storage subsystem therein. The write I/O operations are time stamped and the time, sequence, and physical locations of the record updates ar ...


4
James Lincoln Iskiyan, Robert Frederic Kern, William Frank Micka, Robert Wesley Shomler: Method and apparatus for suspending multiple duplex pairs during back up processing to insure storage devices remain synchronized in a sequence consistent order. International Business Machines Corporation, R M Sullivan, November 25, 1997: US05692155 (124 worldwide citation)

A data storage system atomically suspends multiple duplex pairs across either a single storage subsystem or multiple storage subsystems. The duplex pairs are suspended such that the data on the secondary DASDs of the duplex pairs is maintained in a sequence consistent order. A host processor in the ...


5
Robert Frederic Kern, William Frank Micka, Claus William Mikkelsen, Robert Wesley Shomler, Warren Keith Stanley, Richard Kent Treiber: Asynchronously shadowing record updates in a remote copy session using track arrays. International Business Machines Corporation, R M Sullivan, February 17, 1998: US05720029 (117 worldwide citation)

A disaster recovery system providing asynchronous remote data shadowing between a primary and a secondary site uses a pair of track arrays for each primary data storage device of a remote copy pair to monitor which record updates are in transit between the primary site and the secondary site. A host ...


6
Robert Frederic Kern, William Frank Micka, Jeffrey Mark Nick, Larry Richard Perry, David Bradley Petersen, Harold Glen Slone, Gail Andrea Spear, Harry Morris Yudenfriend: Database backup system ensuring consistency between primary and mirrored backup database copies despite backup interruption. International Business Machines Corporation, Dan Hubert & Assoc, March 6, 2001: US06199074 (102 worldwide citation)

A database management system ensures consistency between primary and mirrored backup copies of a database, despite occurrence of a suspending condition interrupting the normal process of mirroring the primary database. One or more primary controllers are provided, each having a data storage unit wit ...


7
Robert Frederic Kern, Ronald Maynard Kern, William Frank Micka, Mark Anthony Sovik: Host storage management control of outboard data movement using push-pull operations. International Business Machines Corporation, David W Victor, Konrad Raynes & Victor, June 12, 2001: US06247103 (59 worldwide citation)

A storage-and-host-controller-managed outboard data management tool is described wherein the host controller defines logical paths between various storage controllers and data storage devices, and the storage controller manages the movement of data to and from the various data storage devices while ...


8
Robert Frederic Kern, Mark Anthony Sovik: Storage system with data-dependent security. International Business Machines, Dan Hubert & Associates, January 1, 2002: US06336187 (55 worldwide citation)

A host-independent storage facility selectively provides data-dependent security by initially storing a security key in association with a storage region, where that key must be presented by any host seeking access to the region. The storage system includes a storage controller coupled to a digital ...


9
Robert Frederic Kern, David B Petersen, Rune Willy Ludvig: Method, system, and program for handling a failover to a remote storage location. International Business Machines Corporation, David W Victor, Konrad Raynes & Victor, May 9, 2006: US07043665 (33 worldwide citation)

Provided are a method, program, and system for managing data. A mirror policy is processed indicating volumes in a first storage system to mirror to volumes in a second storage system and volumes in the second storage system to mirror to volumes in a third storage system, wherein the third storage s ...


10
Robert Frederic Kern, Ronald Maynard Kern, William Frank Micka, Mark Anthony Sovik: Host storage management control of outboard data movement. International Business Machines Corporation, David W Victor, Konrad Raynes Victor & Mann, May 21, 2002: US06393537 (33 worldwide citation)

A storage-and-host-controller-managed outboard data management tool is described wherein the host controller defines logical paths between various storage controllers and data storage devices, and the storage controller manages the movement of data to and from the various data storage devices while ...