Inventor · disambiguated record
David Michael Shackelford
Also filed as: SHACKELFORD DAVID M · SHACKELFORD DAVID MICHAEL
74 granted patents·6 pending applications·2,014 citations·filing 1996–2022
99Inventor score
Top patents by PatentIndex Score
80 records- 0196US5734818AForming consistency groups using self-describing record sets for remote data duplexingIBM·Filed 1996·Granted Mar 31, 1998·343 cites·21 claims
- 0295US6842825B2Adjusting timestamps to preserve update timing information for cached data objectsIBM·Filed 2002·Granted Jan 11, 2005·149 cites·21 claims
- 0395US6463501B1Method, system and program for maintaining data consistency among updates across groups of storage areas using update timesIBM·Filed 1999·Granted Oct 8, 2002·231 cites·42 claims
- 0495US6212531B1Method for implementing point-in-time copy using a snapshot functionIBM·Filed 1998·Granted Apr 3, 2001·292 cites·20 claims
- 0593US6484187B1Coordinating remote copy status changes across multiple logical sessions to maintain consistencyIBM·Filed 2000·Granted Nov 19, 2002·94 cites·24 claims
- 0691US6611901B1Method, system, and program for maintaining electronic data as of a point-in-timeIBM·Filed 1999·Granted Aug 26, 2003·183 cites·44 claims
- 0790US9344498B2Policy-based management of storage functions in data replication environmentsIBM·Filed 2015·Granted May 17, 2016·6 cites·7 claims
- 0889US8788772B2Maintaining mirror and storage system copies of volumes at multiple remote sitesCLAYTON NICOLAS M·Filed 2012·Granted Jul 22, 2014·13 cites·11 claims
- 0989US6078932APoint-in-time backup utilizing multiple copy technologiesIBM·Filed 1998·Granted Jun 20, 2000·153 cites·18 claims
- 1088US6587933B2Method, system, and program for discarding data in a storage system where updates to a primary storage device are shadowed in a secondary storage deviceIBM·Filed 2001·Granted Jul 1, 2003·54 cites·34 claims
- 1187US9645747B2Management of allocation for alias devicesIBM·Filed 2016·Granted May 9, 2017·4 cites·1 claims
- 1285US9514072B1Management of allocation for alias devicesIBM·Filed 2016·Granted Dec 6, 2016·3 cites·1 claims
- 1385US6128630AJournal space release for log-structured storage systemsIBM·Filed 1997·Granted Oct 3, 2000·86 cites·17 claims
- 1484US8990264B2Policy-based management of storage functions in data replication environmentsCLAYTON NICOLAS MARC·Filed 2012·Granted Mar 24, 2015·7 cites·8 claims
- 1584US6338114B1Method, system, and program for using a table to determine an erase operation to performIBM·Filed 1999·Granted Jan 8, 2002·41 cites·30 claims
- 1683US8055943B2Synchronous and asynchronous continuous data protectionIBM·Filed 2009·Granted Nov 8, 2011·13 cites·24 claims
- 1782US7761426B2Apparatus, system, and method for continuously protecting dataIBM·Filed 2005·Granted Jul 20, 2010·12 cites·30 claims
- 1881US8788768B2Maintaining mirror and storage system copies of volumes at multiple remote sitesCLAYTON NICOLAS M·Filed 2010·Granted Jul 22, 2014·6 cites·22 claims
- 1980US7761431B2Consolidating session information for a cluster of sessions in a coupled session environmentIBM·Filed 2006·Granted Jul 20, 2010·8 cites·18 claims
- 2078US8990263B2Policy-based management of storage functions in data replication environmentsCLAYTON NICOLAS MARC·Filed 2012·Granted Mar 24, 2015·4 cites·16 claims
- 2175US9720786B2Resolving failed mirrored point-in-time copies with minimum disruptionIBM·Filed 2014·Granted Aug 1, 2017·4 cites·12 claims
- 2274US7787456B2Checking and repairing a network configurationIBM·Filed 2008·Granted Aug 31, 2010·4 cites·15 claims
- 2372US8751762B2Prevention of overlay of production data by point in time copy operations in a host based asynchronous mirroring environmentCLAYTON NICOLAS M·Filed 2011·Granted Jun 10, 2014·3 cites·14 claims
- 2471US10346062B2Point-in-time backups via a storage controller to an object storage cloudIBM·Filed 2016·Granted Jul 9, 2019·1 cites·24 claims
- 2571US8095754B2Transparent autonomic data replication improving access performance for a storage area network aware file systemMCBRIDE GREGORY EDWARD·Filed 2008·Granted Jan 10, 2012·6 cites·13 claims
- 2671US7734885B2Execution of point-in-time copy operations in continuous mirroring environmentsIBM·Filed 2007·Granted Jun 8, 2010·5 cites·20 claims
- 2771US6564307B1Method, system, and program for logically erasing dataIBM·Filed 1999·Granted May 13, 2003·58 cites·35 claims
- 2869US8775753B2Synchronization of logical copy relationshipsGUNDY LISA J·Filed 2011·Granted Jul 8, 2014·3 cites·19 claims
- 2969US8538928B2Flash-copying with asynchronous mirroring environmentTHOMPSON JOHN G·Filed 2012·Granted Sep 17, 2013·2 cites·10 claims
- 3069US7437570B2Method, system, and program for distributing software between computer systemsIBM·Filed 2007·Granted Oct 14, 2008·3 cites·21 claims
- 3169US7397770B2Checking and repairing a network configurationIBM·Filed 2004·Granted Jul 8, 2008·10 cites·14 claims
- 3269US7130874B2Method, system, and program for maintaining data in a distributed computing environment for processing transaction requestsIBM·Filed 2002·Granted Oct 31, 2006·11 cites·21 claims
- 3369US6260129B1Management of fixed pages in memory for input/output operationsIBM·Filed 1998·Granted Jul 10, 2001·56 cites·34 claims
- 3468US11366593B2Point-in-time backups via a storage controller to an object storage cloudIBM·Filed 2020·Granted Jun 21, 2022·0 cites·18 claims
- 3567US7991736B2Article of manufacture and system for autonomic data caching and copying on a storage area network aware file system using copy servicesIBM·Filed 2008·Granted Aug 2, 2011·3 cites·9 claims
- 3667US7383406B2Application transparent autonomic availability on a storage area network aware file systemIBM·Filed 2004·Granted Jun 3, 2008·10 cites·10 claims
- 3767US7269701B2Self-configuration of source-to-target mappingIBM·Filed 2003·Granted Sep 11, 2007·13 cites·19 claims
- 3866US7930497B2Using multiple sidefiles to buffer writes to primary storage volumes to transfer to corresponding secondary storage volumes in a mirror relationshipIBM·Filed 2008·Granted Apr 19, 2011·3 cites·20 claims
- 3965US8463746B2Method and system for replicating dataGUNDY LISA J·Filed 2011·Granted Jun 11, 2013·2 cites·20 claims
- 4064US7779219B2Application transparent autonomic availability on a storage area network aware file systemIBM·Filed 2008·Granted Aug 17, 2010·2 cites·22 claims
- 4164US7660958B2Maintaining consistency for remote copy using virtualizationIBM·Filed 2008·Granted Feb 9, 2010·2 cites·10 claims
- 4264US7478211B2Maintaining consistency for remote copy using virtualizationIBM·Filed 2004·Granted Jan 13, 2009·8 cites·5 claims
- 4363US10936208B2Point-in-time backups via a storage controller to an object storage cloudIBM·Filed 2019·Granted Mar 2, 2021·0 cites·20 claims
- 4463US9182922B2Dynamically adjusting write pacing by calculating a pacing level and then delaying writes for a first channel command word (CCW) based on pacing levelIBM·Filed 2013·Granted Nov 10, 2015·1 cites·20 claims
- 4563US7613888B2Maintain owning application information of data for a data storage systemIBM·Filed 2007·Granted Nov 3, 2009·2 cites·10 claims
- 4663US7610459B2Maintain owning application information of data for a data storage systemIBM·Filed 2007·Granted Oct 27, 2009·2 cites·15 claims
- 4763US6321239B1Efficient volume copy using pre-configuration of log structured target storageIBM·Filed 1998·Granted Nov 20, 2001·40 cites·33 claims
- 4862US8335766B2Flash-copying within asynchronous mirroring environmentTHOMPSON JOHN G·Filed 2010·Granted Dec 18, 2012·1 cites·10 claims
- 4960US7805584B2Method and system for restoring dataIBM·Filed 2007·Granted Sep 28, 2010·1 cites·36 claims
- 5060US7788353B2Checking and repairing a network configurationIBM·Filed 2008·Granted Aug 31, 2010·1 cites·28 claims
Showing the top 50 of 80 patent records by PatentIndex Score.
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