Inventor · disambiguated record
Helen S. Raizen
Also filed as: RAIZEN HELEN · RAIZEN HELEN S
60 granted patents·3,283 citations·filing 1984–2015
99Inventor score
Files withEMC CORP24RAIZEN HELEN S12CONTRERAS CESAREO5SANDSTROM HAROLD M3POVALIAEV ALEKSANDER GENNADEVICH2
Top patents by PatentIndex Score
60 records- 0199US9400611B1Data migration in cluster environment using host copy and changed block trackingEMC CORP·Filed 2013·Granted Jul 26, 2016·150 cites·25 claims
- 0299US7904681B1Methods and systems for migrating data with minimal disruptionEMC CORP·Filed 2006·Granted Mar 8, 2011·262 cites·21 claims
- 0398US9460028B1Non-disruptive and minimally disruptive data migration in active-active clustersEMC CORP·Filed 2012·Granted Oct 4, 2016·94 cites·19 claims
- 0498US9160526B1Sharing encryption-related metadata between a host and an external intermediate deviceEMC CORP·Filed 2013·Granted Oct 13, 2015·81 cites·21 claims
- 0598US8156306B1Systems and methods for using thin provisioning to reclaim space identified by data reduction processesRAIZEN HELEN S·Filed 2009·Granted Apr 10, 2012·181 cites·5 claims
- 0698US8140821B1Efficient read/write algorithms and associated mapping for block-level data reduction processesRAIZEN HELEN S·Filed 2009·Granted Mar 20, 2012·470 cites·17 claims
- 0797US9229656B1Managing settings and queries in host-based data migrationCONTRERAS CESAREO·Filed 2012·Granted Jan 5, 2016·191 cites·20 claims
- 0897US8751828B1Sharing encryption-related metadata between multiple layers in a storage I/O stackRAIZEN HELEN·Filed 2010·Granted Jun 10, 2014·135 cites·21 claims
- 0997US8438315B1Techniques for non-disruptive upgradeTAO TAO·Filed 2010·Granted May 7, 2013·221 cites·20 claims
- 1097US7890664B1Methods and apparatus for non-disruptive upgrade by redirecting I/O operationsEMC CORP·Filed 2008·Granted Feb 15, 2011·155 cites·8 claims
- 1197US7809912B1Methods and systems for managing I/O requests to minimize disruption required for data migrationEMC CORP·Filed 2006·Granted Oct 5, 2010·149 cites·20 claims
- 1296US8601085B1Techniques for preferred path determinationIVES STEPHEN RICHARD·Filed 2011·Granted Dec 3, 2013·99 cites·16 claims
- 1396US8281033B1Techniques for path selectionRIORDAN PATRICK BRIAN·Filed 2010·Granted Oct 2, 2012·46 cites·20 claims
- 1496US7770053B1Systems and methods for maintaining data integrity during a migrationEMC CORP·Filed 2006·Granted Aug 3, 2010·152 cites·11 claims
- 1595US8416954B1Systems and methods for accessing storage or network based replicas of encrypted volumes with no additional key managementRAIZEN HELEN S·Filed 2008·Granted Apr 9, 2013·95 cites·20 claims
- 1694US8904050B1Techniques for automated data storage system port initializationEMC CORP·Filed 2013·Granted Dec 2, 2014·20 cites·19 claims
- 1794US8332612B1Systems and methods for using thin provisioning to reclaim space identified by data reduction processesRAIZEN HELEN S·Filed 2012·Granted Dec 11, 2012·30 cites·20 claims
- 1894US8204980B1Storage array network path impact analysis server for path selection in a host-based I/O multi-path systemSANDSTROM HAROLD M·Filed 2007·Granted Jun 19, 2012·41 cites·20 claims
- 1994US6889309B1Method and apparatus for implementing an enterprise virtual storage systemEMC CORP·Filed 2002·Granted May 3, 2005·98 cites·83 claims
- 2093US9465550B1Techniques for improved service level objective fulfillmentEMC CORP·Filed 2014·Granted Oct 11, 2016·24 cites·17 claims
- 2193US8261068B1Systems and methods for selective encryption of operating system metadata for host-based encryption of data at rest on a logical unitRAIZEN HELEN S·Filed 2008·Granted Sep 4, 2012·61 cites·20 claims
- 2293US8190784B1In-band transport mechanism for carrying communications among functional components of a storage I/O interface stackRAIZEN HELEN S·Filed 2011·Granted May 29, 2012·27 cites·36 claims
- 2393US8166314B1Selective I/O to logical unit when encrypted, but key is not available or when encryption status is unknownRAIZEN HELEN S·Filed 2008·Granted Apr 24, 2012·70 cites·20 claims
- 2492US8798262B1Preserving LBA information between layers of a storage I/O stack for LBA-dependent encryptionRAIZEN HELEN·Filed 2010·Granted Aug 5, 2014·25 cites·32 claims
- 2591US9998537B1Host-side tracking of data block changes for incremental backupEMC CORP·Filed 2015·Granted Jun 12, 2018·13 cites·10 claims
- 2691US8966281B1Systems and methods for accessing storage or network based replicas of encryped volumes with no additional key managementEMC CORP·Filed 2013·Granted Feb 24, 2015·19 cites·20 claims
- 2791US8468241B1Adaptive optimization across information technology infrastructureRAIZEN HELEN S·Filed 2011·Granted Jun 18, 2013·22 cites·20 claims
- 2890US10353780B1Incremental backup in a distributed block storage environmentEMC CORP·Filed 2015·Granted Jul 16, 2019·11 cites·11 claims
- 2990US8819307B1Identification and use of preferred path groups in host computer based on differential performanceRAIZEN HELEN S·Filed 2011·Granted Aug 26, 2014·21 cites·23 claims
- 3090US7962567B1Systems and methods for disabling an array port for an enterpriseEMC CORP·Filed 2006·Granted Jun 14, 2011·21 cites·20 claims
- 3190US7957398B1Methods and systems for dynamic division of path capacityEMC CORP·Filed 2007·Granted Jun 7, 2011·19 cites·20 claims
- 3289US8826041B1In-band detection mechanism for detecting intermediate layer in a storage I/O driver stackCONTRERAS CESAREO·Filed 2011·Granted Sep 2, 2014·16 cites·22 claims
- 3388US8918537B1Storage array network path analysis server for enhanced path selection in a host-based I/O multi-path systemSANDSTROM HAROLD M·Filed 2007·Granted Dec 23, 2014·19 cites·14 claims
- 3488US8843789B2Storage array network path impact analysis server for path selection in a host-based I/O multi-path systemSANDSTROM HAROLD M·Filed 2012·Granted Sep 23, 2014·10 cites·20 claims
- 3588US8775861B1Non-disruptive storage device migration in failover cluster environmentRAIZEN HELEN S·Filed 2012·Granted Jul 8, 2014·15 cites·14 claims
- 3686US9063661B1Automated updating of parameters and metadata in a federated storage environmentEMC CORP·Filed 2014·Granted Jun 23, 2015·9 cites·20 claims
- 3786US8332613B1Methods and systems for managing I/O requests to minimize disruption required for data encapsulation and de-encapsulationGLADE BRADFORD B·Filed 2007·Granted Dec 11, 2012·15 cites·11 claims
- 3886US8316161B1Techniques for indicating a passive path state for a deviceCONTRERAS CESAREO·Filed 2010·Granted Nov 20, 2012·10 cites·19 claims
- 3985US9003432B1Efficient management of kernel driver performance dataPELLOWSKI ROBERT J·Filed 2012·Granted Apr 7, 2015·11 cites·23 claims
- 4085US7937481B1System and methods for enterprise path managementEMC CORP·Filed 2007·Granted May 3, 2011·13 cites·15 claims
- 4184US7536503B1Methods and systems for preserving disk geometry when migrating existing data volumesEMC CORP·Filed 2006·Granted May 19, 2009·14 cites·20 claims
- 4283US9787522B1Data processing system having failover between hardware and software encryption of storage dataCONTRERAS CESAREO·Filed 2011·Granted Oct 10, 2017·10 cites·12 claims
- 4383US8799608B1Techniques involving flaky path detectionRAIZEN HELEN S·Filed 2011·Granted Aug 5, 2014·8 cites·20 claims
- 4483US7689786B1Techniques for overriding device reservationsEMC CORP·Filed 2006·Granted Mar 30, 2010·13 cites·20 claims
- 4582US8751757B1Acquisition and kernel memory storage of I/O metricsGAIKWAD DEEPAK M·Filed 2011·Granted Jun 10, 2014·11 cites·20 claims
- 4681US8826264B1Non-disruptive upgrade of applicationsCHHABRA NITIN·Filed 2012·Granted Sep 2, 2014·10 cites·19 claims
- 4778US9354769B1Electronically controlling commitment of a change to stored informationKUDVA SANTHOSH V·Filed 2011·Granted May 31, 2016·9 cites·24 claims
- 4878US8412858B2Techniques for indicating a passive state for a deviceCONTRERAS CESAREO·Filed 2012·Granted Apr 2, 2013·4 cites·20 claims
- 4977US9778853B1Acquisition and kernel memory storage of I/O metricsEMC CORP·Filed 2014·Granted Oct 3, 2017·4 cites·22 claims
- 5077US4601586ASolicited message packet transfer systemPRIME COMPUTER INC·Filed 1984·Granted Jul 22, 1986·53 cites·17 claims
Showing the top 50 of 60 patent records by PatentIndex Score.
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