Radu Stoica  Radu Stoica photo         

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Staff Research Scientist & Manager - Hybrid Cloud/ Infrastructure Software
Zurich Research Laboratory, Zurich, Switzerland
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2022

Calculating corrective read voltage offsets in non-volatile random access memory
Nikolaos Papandreou, Charalampos Pozidis, Nikolas Ioannou, Roman Alexander Pletka, Radu Ioan Stoica, Sasa Tomic, Timothy Fisher, Aaron Daniel Fry
US Patent 11,302,403

Calibrating pages of memory using partial page read operations
Nikolaos Papandreou, Charalampos Pozidis, Roman Alexander Pletka, Sasa Tomic, Nikolas Ioannou, Radu Ioan Stoica
US Patent 11,334,492

Hybrid read voltage calibration in non-volatile random access memory
Nikolaos Papandreou, Charalampos Pozidis, Nikolas Ioannou, Roman Alexander Pletka, Radu Ioan Stoica, Sasa Tomic, Timothy Fisher, Aaron Daniel Fry, Andrew D Walls
US Patent 11,264,103


2021

Data placement in write cache architecture supporting read heat data separation
Roman Alexander Pletka, Timothy Fisher, Aaron Daniel Fry, Nikolaos Papandreou, Nikolas Ioannou, Sasa Tomic, Radu Ioan Stoica, Charalampos Pozidis, Andrew D Walls
US Patent App. 17/166,939

Memory controllers for solid-state storage devices
Nikolaos Papandreou, Roman Alexander Pletka, Radu Ioan Stoica, Nikolas Ioannou, Sasa Tomic, Charalampos Pozidis
US Patent 11,188,261

Migrating data between block pools in a storage system
Sasa Tomic, Radu Ioan Stoica, Nikolaos Papandreou, Nikolas Ioannou, Roman Alexander Pletka, Aaron Daniel Fry, Timothy Fisher
US Patent 11,138,124

Updating corrective read voltage offsets in non-volatile random access memory
Nikolaos Papandreou, Charalampos Pozidis, Nikolas Ioannou, Roman Alexander Pletka, Radu Ioan Stoica, Sasa Tomic, Aaron Daniel Fry, Timothy Fisher
US Patent 11,056,199

Managing memory block calibration based on priority levels
Nikolaos Papandreou, Roman Alexander Pletka, Aaron Daniel Fry, Timothy Fisher, Nikolas Ioannou, Charalampos Pozidis, Radu Ioan Stoica, Sasa Tomic
US Patent 11,036,415

Managing blocks of memory based on block health using hybrid controllers
Roman Alexander Pletka, Aaron Daniel Fry, Sasa Tomic, Nikolaos Papandreou, Nikolas Ioannou, Radu Ioan Stoica, Timothy Fisher
US Patent 11,157,379

Workload based relief valve activation for hybrid controller architectures
Radu Ioan Stoica, Roman Alexander Pletka, Timothy Fisher, Nikolaos Papandreou, Sasa Tomic, Nikolas Ioannou, Aaron Daniel Fry, Charalampos Pozidis, Andrew D Walls
US Patent App. 16/667,702

Selectively storing parity data in different types of memory
Nikolas Ioannou, Timothy Fisher, Roman Alexander Pletka, Nikolaos Papandreou, Radu Ioan Stoica, Sasa Tomic, Aaron Daniel Fry
US Patent 11,119,855

Dynamically adjusting block mode pool sizes
Radu Ioan Stoica, Roman Alexander Pletka, Nikolas Ioannou, Nikolaos Papandreou, Sasa Tomic
US Patent 11,126,360

Calculating corrective read voltage offsets in non-volatile random access memory
Nikolaos Papandreou, Charalampos Pozidis, Nikolas Ioannou, Roman Alexander Pletka, Radu Ioan Stoica, Sasa Tomic, Timothy Fisher, Aaron Daniel Fry
US Patent 10,957,407

Increasing data read and/or write heat tracking resolution in storage devices having cache architecture
Nikolas Ioannou, Nikolaos Papandreou, Roman Alexander Pletka, Sasa Tomic, Radu Ioan Stoica, Timothy Fisher, Aaron Daniel Fry, Charalampos Pozidis, Andrew D Walls
US Patent 11,151,053

Adapting memory block pool sizes using hybrid controllers
Roman Alexander Pletka, Radu Ioan Stoica, Sasa Tomic, Nikolaos Papandreou, Nikolas Ioannou, Aaron Daniel Fry, Timothy Fisher, Charalampos Pozidis, Andrew D Walls
US Patent 11,182,089

Block mode toggling using hybrid controllers
Roman Alexander Pletka, Aaron Daniel Fry, Timothy Fisher, Sasa Tomic, Nikolaos Papandreou, Nikolas Ioannou, Radu Ioan Stoica, Charalampos Pozidis, Andrew D Walls
US Patent 11,023,150

Data placement in write cache architecture supporting read heat data separation
Roman Alexander Pletka, Timothy Fisher, Aaron Daniel Fry, Nikolaos Papandreou, Nikolas Ioannou, Sasa Tomic, Radu Ioan Stoica, Charalampos Pozidis, Andrew D Walls
US Patent 10,977,181

Wear-aware block mode conversion in non-volatile memory
Sasa Tomic, Roman Alexander Pletka, Nikolas Ioannou, Nikolaos Papandreou, Aaron D Fry, Timothy Fisher, Radu Ioan Stoica
US Patent 10,956,049

Decentralized RAID scheme having distributed parity computation and recovery
Radu I Stoica, Roman A Pletka, Ioannis Koltsidas, Nikolas Ioannou, Antonios K Kourtis, Sasa Tomic, Charalampos Pozidis, Brent W Yardley
US Patent 10,929,229

Metadata hardening and parity accumulation for log-structured arrays
Ioannis Koltsidas, Charles J Camp, Nikolas Ioannou, Roman A Pletka, Antonios K Kourtis, Sasa Tomic, Radu I Stoica, Christopher Dennett, Andrew D Walls
US Patent 11,036,580

Metadata hardening and parity accumulation for log-structured arrays
Ioannis Koltsidas, Charles J Camp, Nikolas Ioannou, Roman A Pletka, Antonios K Kourtis, Sasa Tomic, Radu I Stoica, Christopher Dennett, Andrew D Walls
US Patent 11,042,437

Techniques for improving deduplication efficiency in a storage system with multiple storage nodes
Nikolas Ioannou, Ioannis Koltsidas, Roman A Pletka, Cheng-Chung Song, Radu Stoica, Sasa Tomic, Andrew D Walls
US Patent 11,016,940


2020

Increasing storage efficiency of a data protection technique
Roman A Pletka, Radu I Stoica, Ioannis Koltsidas, Nikolas Ioannou, Sasa Tomic, Antonios K Kourtis, Charalampos Pozidis
US Patent 10,592,173

Increasing storage efficiency of a data protection technique
Roman A Pletka, Radu I Stoica, Ioannis Koltsidas, Nikolas Ioannou, Sasa Tomic, Antonios K Kourtis, Charalampos Pozidis
US Patent 10,592,173


2019

Metadata hardening and parity accumulation for log-structured arrays
Ioannis Koltsidas, Charles J Camp, Nikolas Ioannou, Roman A Pletka, Antonios K Kourtis, Sasa Tomic, Radu I Stoica, Christopher Dennett, Andrew D Walls
US Patent 10,437,670

Workload optimized data deduplication using ghost fingerprints
Nikolas Ioannou, Roman A Pletka, Cheng-Chung Song, Radu Stoica, Sasa Tomic, Andrew D Walls
US Patent 10,235,396

Decentralized raid scheme having distributed parity computation and recovery
Radu I Stoica, Roman A Pletka, Ioannis Koltsidas, Nikolas Ioannou, Antonios K Kourtis, Sasa Tomic, Charalampos Pozidis, Brent W Yardley
US Patent App. 16/015,054

Metadata hardening and parity accumulation for log-structured arrays
Ioannis Koltsidas, Charles J Camp, Nikolas Ioannou, Roman A Pletka, Antonios K Kourtis, Sasa Tomic, Radu I Stoica, Christopher Dennett, Andrew D Walls
US Patent 10,437,670

Techniques for improving deduplication efficiency in a storage system with multiple storage nodes
Nikolas Ioannou, Ioannis Koltsidas, Roman A Pletka, Cheng-Chung Song, Radu Stoica, Sasa Tomic, Andrew D Walls
US Patent App. 15/824,625

Workload optimized data deduplication using ghost fingerprints
Nikolas Ioannou, Roman A Pletka, Cheng-Chung Song, Radu Stoica, Sasa Tomic, Andrew D Walls
US Patent 10,235,396


2018

Techniques for improving deduplication efficiency in a storage system with multiple storage nodes
Nikolas Ioannou, Ioannis Koltsidas, Roman A Pletka, Cheng-Chung Song, Radu Stoica, Sasa Tomic, Andrew D Walls
US Patent 9,892,128

Techniques for improving deduplication efficiency in a storage system with multiple storage nodes
Nikolas Ioannou, Ioannis Koltsidas, Roman A Pletka, Cheng-Chung Song, Radu Stoica, Sasa Tomic, Andrew D Walls
US Patent 9,892,128


2017

Techniques for improving deduplication efficiency in a storage system with multiple storage nodes
Nikolas Ioannou, Ioannis Koltsidas, Roman A Pletka, Cheng-Chung Song, Radu Stoica, Sasa Tomic, Andrew D Walls
US Patent 9,690,801

Techniques for improving deduplication efficiency in a storage system with multiple storage nodes
Nikolas Ioannou, Ioannis Koltsidas, Roman A Pletka, Cheng-Chung Song, Radu Stoica, Sasa Tomic, Andrew D Walls
US Patent 9,690,801