{"id":"https://openalex.org/W24740120","doi":null,"title":"HYDRAstor: a Scalable Secondary Storage","display_name":"HYDRAstor: a Scalable Secondary Storage","publication_year":2009,"publication_date":"2009-02-24","ids":{"openalex":"https://openalex.org/W24740120","mag":"24740120"},"language":"en","primary_location":{"id":"pmh:oai:CiteSeerX.psu:10.1.1.145.4291","doi":null,"is_oa":false,"landing_page_url":"http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.145.4291","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"http://www.usenix.org/events/fast09/tech/full_papers/dubnicki/dubnicki.pdf","raw_type":"text"},"volume":null,"type":"article","is_traditional":true,"indexed_in":[],"open_access":{"is_oa":false,"oa_status":"closed","oa_url":null,"any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5002508218","display_name":"Cezary Dubnicki","orcid":"https://orcid.org/0009-0000-1844-9218","observed_orcids":["https://orcid.org/0009-0000-1844-9218"]},"institutions":[{"id":"https://openalex.org/I4210107353","display_name":"NEC (United States)","ror":"https://ror.org/01v791m31","country_code":"US","type":"company","lineage":["https://openalex.org/I118347220","https://openalex.org/I4210107353"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Cezary Dubnicki","raw_affiliation_strings":["NEC Laboratories America"],"raw_orcid":"https://orcid.org/0009-0000-1844-9218","affiliations":[{"raw_affiliation_string":"NEC Laboratories America","institution_ids":["https://openalex.org/I4210107353"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5049919259","display_name":"Leszek Gryz","orcid":"https://orcid.org/0009-0004-4433-0252","observed_orcids":["https://orcid.org/0009-0004-4433-0252"]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Leszek Gryz","raw_affiliation_strings":["9LivesData, LLC"],"raw_orcid":"https://orcid.org/0009-0004-4433-0252","affiliations":[{"raw_affiliation_string":"9LivesData, LLC","institution_ids":[]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5008392627","display_name":"Lukasz Heldt","orcid":"https://orcid.org/0009-0003-0593-7345","observed_orcids":["https://orcid.org/0009-0003-0593-7345"]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Lukasz Heldt","raw_affiliation_strings":["9LivesData, LLC"],"raw_orcid":"https://orcid.org/0009-0003-0593-7345","affiliations":[{"raw_affiliation_string":"9LivesData, LLC","institution_ids":[]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5073178743","display_name":"Micha\u0142 Kaczmarczyk","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Micha\u0142 Kaczmarczyk","raw_affiliation_strings":["9LivesData, LLC"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"9LivesData, LLC","institution_ids":[]}]},{"author_position":"middle","author":{"id":null,"display_name":"Wojciech Kilian","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Wojciech Kilian","raw_affiliation_strings":["9LivesData, LLC"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"9LivesData, LLC","institution_ids":[]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5044986574","display_name":"Przemyslaw Strzelczak","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Przemyslaw Strzelczak","raw_affiliation_strings":["9LivesData, LLC"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"9LivesData, LLC","institution_ids":[]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5035816207","display_name":"Jerzy Szczepkowski","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Jerzy Szczepkowski","raw_affiliation_strings":["9LivesData, LLC"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"9LivesData, LLC","institution_ids":[]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5104214395","display_name":"Cristian Ungureanu","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I4210107353","display_name":"NEC (United States)","ror":"https://ror.org/01v791m31","country_code":"US","type":"company","lineage":["https://openalex.org/I118347220","https://openalex.org/I4210107353"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Cristian Ungureanu","raw_affiliation_strings":["NEC Laboratories America#TAB#"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"NEC Laboratories America#TAB#","institution_ids":["https://openalex.org/I4210107353"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5036788413","display_name":"Micha\u0142 We\u0142nicki","orcid":"https://orcid.org/0009-0006-0272-4258","observed_orcids":["https://orcid.org/0009-0006-0272-4258"]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Micha\u0142 We\u0142nicki","raw_affiliation_strings":["9LivesData, LLC"],"raw_orcid":"https://orcid.org/0009-0006-0272-4258","affiliations":[{"raw_affiliation_string":"9LivesData, LLC","institution_ids":[]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":21.0783,"has_fulltext":true,"cited_by_count":209,"citation_normalized_percentile":{"value":0.99348827,"is_in_top_1_percent":true,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":93,"max":100},"biblio":{"volume":null,"issue":null,"first_page":"197","last_page":"210"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11181","display_name":"Advanced Data Storage Technologies","score":0.9901999831199646,"subfield":{"id":"https://openalex.org/subfields/1705","display_name":"Computer Networks and Communications"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T11181","display_name":"Advanced Data Storage Technologies","score":0.9901999831199646,"subfield":{"id":"https://openalex.org/subfields/1705","display_name":"Computer Networks and Communications"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10742","display_name":"Peer-to-Peer Network Technologies","score":0.004600000102072954,"subfield":{"id":"https://openalex.org/subfields/1705","display_name":"Computer Networks and Communications"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10101","display_name":"Cloud Computing and Resource Management","score":0.002400000113993883,"subfield":{"id":"https://openalex.org/subfields/1710","display_name":"Information Systems"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/secondary-storage","display_name":"external memory","score":0.7720000147819519},{"id":"https://openalex.org/keywords/content-addressable-storage","display_name":"content-addressable storage","score":0.9459999799728394},{"id":"https://openalex.org/keywords/distributed-hash-tables","display_name":"distributed hash tables","score":0.9369999766349792},{"id":"https://openalex.org/keywords/directed-acyclic-graphs","display_name":"directed acyclic graphs","score":0.7699999809265137},{"id":"https://openalex.org/keywords/data-deduplication","display_name":"data deduplication","score":0.6880000233650208},{"id":"https://openalex.org/keywords/fault-tolerance","display_name":"fault tolerance","score":0.6899999976158142},{"id":"https://openalex.org/keywords/data-recovery","display_name":"data recovery","score":0.4819999933242798},{"id":"https://openalex.org/keywords/data-consistency","display_name":"data consistency","score":0.503000020980835},{"id":"https://openalex.org/keywords/data-integrity","display_name":"data integrity","score":0.9319999814033508},{"id":"https://openalex.org/keywords/scalable-storage-systems","display_name":"scalable storage systems","score":0.6489999890327454},{"id":"https://openalex.org/keywords/enterprise-storage","display_name":"enterprise storage","score":0.6460000276565552},{"id":"https://openalex.org/keywords/file-system-interface","display_name":"file system interface","score":0.49000000953674316}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7932581901550293},{"id":"https://openalex.org/C48044578","wikidata":"https://www.wikidata.org/wiki/Q727490","display_name":"Scalability","level":2,"score":0.6627994179725647},{"id":"https://openalex.org/C2780224649","wikidata":"https://www.wikidata.org/wiki/Q863506","display_name":"Distributed hash table","level":3,"score":0.5887210369110107},{"id":"https://openalex.org/C120314980","wikidata":"https://www.wikidata.org/wiki/Q180634","display_name":"Distributed computing","level":1,"score":0.5538314580917358},{"id":"https://openalex.org/C2780940931","wikidata":"https://www.wikidata.org/wiki/Q174989","display_name":"File system","level":2,"score":0.45975613594055176},{"id":"https://openalex.org/C113843644","wikidata":"https://www.wikidata.org/wiki/Q901882","display_name":"Interface (matter)","level":4,"score":0.42526838183403015},{"id":"https://openalex.org/C74197172","wikidata":"https://www.wikidata.org/wiki/Q1195339","display_name":"Directed acyclic graph","level":2,"score":0.41714024543762207},{"id":"https://openalex.org/C67388219","wikidata":"https://www.wikidata.org/wiki/Q207440","display_name":"Hash table","level":3,"score":0.4108333885669708},{"id":"https://openalex.org/C77088390","wikidata":"https://www.wikidata.org/wiki/Q8513","display_name":"Database","level":1,"score":0.387991726398468},{"id":"https://openalex.org/C111919701","wikidata":"https://www.wikidata.org/wiki/Q9135","display_name":"Operating system","level":1,"score":0.37904971837997437},{"id":"https://openalex.org/C99138194","wikidata":"https://www.wikidata.org/wiki/Q183427","display_name":"Hash function","level":2,"score":0.3626393973827362},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.35983261466026306},{"id":"https://openalex.org/C157915830","wikidata":"https://www.wikidata.org/wiki/Q2928001","display_name":"Bubble","level":2,"score":0.0},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.0},{"id":"https://openalex.org/C38652104","wikidata":"https://www.wikidata.org/wiki/Q3510521","display_name":"Computer security","level":1,"score":0.0},{"id":"https://openalex.org/C129307140","wikidata":"https://www.wikidata.org/wiki/Q6795880","display_name":"Maximum bubble pressure method","level":3,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"pmh:oai:CiteSeerX.psu:10.1.1.145.4291","doi":null,"is_oa":false,"landing_page_url":"http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.145.4291","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"http://www.usenix.org/events/fast09/tech/full_papers/dubnicki/dubnicki.pdf","raw_type":"text"},{"id":"mag:24740120","doi":null,"is_oa":false,"landing_page_url":"https://static.usenix.org/legacy/events/fast09/tech/slides/dubnicki.pdf","pdf_url":null,"source":{"id":"https://openalex.org/S4306418422","display_name":"File and Storage Technologies","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"conference"},"license":null,"license_id":null,"version":null,"is_accepted":false,"is_published":false,"raw_source_name":"File and Storage Technologies","raw_type":null}],"best_oa_location":null,"sustainable_development_goals":[],"study_designs":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":37,"referenced_works":["https://openalex.org/W2757614","https://openalex.org/W4175592","https://openalex.org/W200233886","https://openalex.org/W1486784874","https://openalex.org/W1516720694","https://openalex.org/W1526843360","https://openalex.org/W1547460932","https://openalex.org/W1576397915","https://openalex.org/W1582105055","https://openalex.org/W1836955865","https://openalex.org/W1957582590","https://openalex.org/W1977797546","https://openalex.org/W1999984505","https://openalex.org/W2012706015","https://openalex.org/W2107745416","https://openalex.org/W2107779152","https://openalex.org/W2109387036","https://openalex.org/W2114602632","https://openalex.org/W2116777751","https://openalex.org/W2119245106","https://openalex.org/W2119565742","https://openalex.org/W2121133177","https://openalex.org/W2122492666","https://openalex.org/W2123482462","https://openalex.org/W2124288146","https://openalex.org/W2130843735","https://openalex.org/W2131894525","https://openalex.org/W2145904415","https://openalex.org/W2149993626","https://openalex.org/W2150676586","https://openalex.org/W2156719566","https://openalex.org/W2157916509","https://openalex.org/W2158049821","https://openalex.org/W2158487821","https://openalex.org/W2163059190","https://openalex.org/W2167898414","https://openalex.org/W2264119918"],"related_works":["https://openalex.org/W7098324344","https://openalex.org/W1599186236","https://openalex.org/W7099746858","https://openalex.org/W45290701","https://openalex.org/W1945122988","https://openalex.org/W579744601","https://openalex.org/W7099521994","https://openalex.org/W4367313538","https://openalex.org/W4295246739","https://openalex.org/W883020499"],"abstract_inverted_index":{"HYDRAstor":[0],"is":[1,103,127,194],"a":[2,16,20,27,32,36,43,73,109,120,130],"scalable,":[3,74],"secondary":[4,77],"storage":[5,23,78],"solution":[6],"aimed":[7],"at":[8],"the":[9,61,68,145,157,166,171,202,218],"enterprise":[10],"market.":[11],"The":[12,99,148,161],"system":[13,46,146,159],"consists":[14],"of":[15,22,35,38,72,108,111,156,173,181,220],"back-end":[17,62,100],"architectured":[18],"as":[19],"grid":[21],"nodes":[24,40],"built":[25],"around":[26],"distributed":[28],"hash":[29],"table;":[30],"and":[31,48,95,140,190,223],"front-end":[33],"consisting":[34],"layer":[37],"access":[39,138],"which":[41,63],"implement":[42,136],"traditional":[44],"file":[45,158],"interface":[47],"can":[49],"be":[50,210],"scaled":[51],"in":[52,119,188],"number":[53],"for":[54,164],"increased":[55],"performance.":[56],"This":[57,125],"paper":[58],"concentrates":[59],"on":[60,105,178],"is,":[64],"to":[65,135,141,144,196,205,209],"our":[66],"knowledge,":[67],"first":[69],"commercial":[70],"implementation":[71,155],"high-performance":[75],"content-addressable":[76],"delivering":[79],"global":[80],"duplicate":[81],"elimination,":[82],"per-block":[83],"user-selectable":[84],"failure":[85],"resiliency,":[86],"selfmaintenance":[87],"including":[88],"automatic":[89],"recovery":[90],"from":[91],"failures":[92],"with":[93,129,153],"data":[94,116,175,182,199,212,221],"network":[96],"overlay":[97],"rebuilding.":[98],"programming":[101],"model":[102,126],"based":[104,177],"an":[106,154],"abstraction":[107],"sea":[110],"variable-sized,":[112],"content-addressed,":[113],"immutable,":[114],"highly-resilient":[115],"blocks":[117],"organized":[118],"DAG":[121],"(directed":[122],"acyclic":[123],"graph).":[124],"exported":[128],"low-level":[131],"API":[132,149],"allowing":[133],"clients":[134],"new":[137],"protocols":[139],"add":[142],"them":[143],"on-line.":[147],"has":[150,169],"been":[151,170],"validated":[152],"interface.":[160],"critical":[162],"factor":[163],"meeting":[165],"design":[167],"targets":[168],"selection":[172],"proper":[174],"organization":[176,187],"redundant":[179],"chains":[180],"containers.":[183],"We":[184],"present":[185],"this":[186],"detail":[189],"describe":[191],"how":[192],"it":[193],"used":[195],"deliver":[197,206],"required":[198],"services.":[200],"Surprisingly,":[201],"most":[203],"complex":[204],"turned":[207],"out":[208],"on-demand":[211],"deletion,":[213],"followed":[214],"(not":[215],"surprisingly)":[216],"by":[217],"management":[219],"consistency":[222],"integrity.":[224]},"counts_by_year":[{"year":2024,"cited_by_count":2},{"year":2023,"cited_by_count":2},{"year":2022,"cited_by_count":6},{"year":2021,"cited_by_count":10},{"year":2020,"cited_by_count":7},{"year":2019,"cited_by_count":4},{"year":2018,"cited_by_count":15},{"year":2017,"cited_by_count":13},{"year":2016,"cited_by_count":16},{"year":2015,"cited_by_count":30},{"year":2014,"cited_by_count":23},{"year":2013,"cited_by_count":30},{"year":2012,"cited_by_count":18}],"updated_date":"2026-11-08T12:12:28.789561","created_date":"2016-06-24T00:00:00"}