Two-node high availability cluster storage solution using an intelligent initiator to avoid split brain syndrome

P Chatterjee, N Balakrishnan, R Jayaraman - US Patent 8,498,967, 2013 - Google Patents
Techniques for maintaining mirrored storage cluster data consistency on systems with two-
node, highly available storage solutions can employ an initiator-side agent operable to …

Distributed hot-spare storage in a storage cluster

P Chatterjee, A Narayanan, A Mahalingam… - US Patent …, 2013 - Google Patents
(57) ABSTRACT A method, system, apparatus, and computer-readable medium are
described for providing distributed hot-spare storage in a redundant storage cluster …

Background movement of data between nodes in a storage cluster

P Chatterjee, A Mahalingam, N Balakrishnan… - US Patent …, 2011 - Google Patents
US8010485B1 - Background movement of data between nodes in a storage cluster -
Google Patents US8010485B1 - Background movement of data between nodes in a …

Distributed hot-spare storage in a storage cluster

P Chatterjee, A Narayanan, A Mahalingam… - US Patent …, 2011 - Google Patents
A method, system, apparatus, and computer-readable medium are described for providing
distributed hot-spare storage in a redundant storage cluster. According to one method, a …

Maintaining data consistency in mirrored cluster storage systems using bitmap write-intent logging

P Chatterjee, A Narayanan, N Balakrishnan… - US Patent …, 2013 - Google Patents
Techniques for maintaining mirrored storage cluster data consistency can employ Write-
intent logging. The techniques can be scaled to any number of mirror nodes. The techniques …

Data distribution through capacity leveling in a striped file system

RP Jernigan IV - US Patent 8,117,388, 2012 - Google Patents
5. 63, 31 A 1 1/1992 Row et al. manner so that they are optimally assigned to the nodes in
5,202,979 A 4, 1993 Hillis et al. accordance with each node's capacity value. By utilizing the …

Method and system for rebuilding data in a distributed RAID system

WC Galloway, RA Callison… - US Patent 8,082,393, 2011 - Google Patents
(US); Ryan A. Callison, Magnolia, TX 2003. O135709 A1 7, 2003 Niles et al.(US); George J.
Scholhamer, III, 2003/0159001 A1 8/2003 Chalmer et al. Tomball, TX (US) 2004.0003173 …

Maintaining data consistency in mirrored cluster storage systems with write-back cache

P Chatterjee, N Balakrishnan, R Jayaraman - US Patent 8,244,999, 2012 - Google Patents
Techniques for maintaining mirrored storage cluster data consistency on systems with write
back cache can employ write-intent logging and periodic log clearing. The tech niques can …

Background movement of data between nodes in a storage cluster

P Chatterjee, A Mahalingam, N Balakrishnan… - US Patent …, 2010 - Google Patents
US7778960B1 - Background movement of data between nodes in a storage cluster -
Google Patents US7778960B1 - Background movement of data between nodes in a …

System and method for managing hard and soft lock state information in a distributed storage system environment

T Smith, RP Jernigan IV, RW Hyer Jr, M Kazar… - US Patent …, 2010 - Google Patents
A system and method manages lock state information in a storage system. A meta-data
volume node includes a lock state database which is a comprehensive source for lock state …