{"id":"https://openalex.org/W2066698402","doi":"https://doi.org/10.1145/1272996.1273016","title":"hFS","display_name":"hFS","publication_year":2007,"publication_date":"2007-03-21","ids":{"openalex":"https://openalex.org/W2066698402","doi":"https://doi.org/10.1145/1272996.1273016","mag":"2066698402"},"language":"en","primary_location":{"id":"doi:10.1145/1272996.1273016","is_oa":false,"landing_page_url":"https://doi.org/10.1145/1272996.1273016","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the 2nd ACM SIGOPS/EuroSys European Conference on Computer Systems 2007","raw_type":"proceedings-article"},"type":"conference-paper","indexed_in":["crossref"],"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/A5100451610","display_name":"Zhihui Zhang","orcid":"https://orcid.org/0000-0001-7387-599X"},"institutions":[{"id":"https://openalex.org/I123946342","display_name":"Binghamton University","ror":"https://ror.org/008rmbt77","country_code":"US","type":"education","lineage":["https://openalex.org/I123946342"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Zhihui Zhang","raw_affiliation_strings":["State University of New York, Binghamton, NY"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"State University of New York, Binghamton, NY","institution_ids":["https://openalex.org/I123946342"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5043921638","display_name":"Kanad Ghose","orcid":"https://orcid.org/0000-0002-5509-6543"},"institutions":[{"id":"https://openalex.org/I123946342","display_name":"Binghamton University","ror":"https://ror.org/008rmbt77","country_code":"US","type":"education","lineage":["https://openalex.org/I123946342"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Kanad Ghose","raw_affiliation_strings":["State University of New York, Binghamton, NY"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"State University of New York, Binghamton, NY","institution_ids":["https://openalex.org/I123946342"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":["https://openalex.org/I123946342"],"apc_list":null,"apc_paid":null,"fwci":1.6568,"has_fulltext":false,"cited_by_count":40,"citation_normalized_percentile":{"value":0.83777866,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":98},"biblio":{"volume":null,"issue":null,"first_page":"175","last_page":"187"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11181","display_name":"Advanced Data Storage Technologies","score":1.0,"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":1.0,"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/T11478","display_name":"Caching and Content Delivery","score":0.9983999729156494,"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":0.9980999827384949,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.82115638256073},{"id":"https://openalex.org/keywords/journaling-file-system","display_name":"Journaling file system","score":0.7877985835075378},{"id":"https://openalex.org/keywords/file-system","display_name":"File system","score":0.7689162492752075},{"id":"https://openalex.org/keywords/metadata","display_name":"Metadata","score":0.6931056976318359},{"id":"https://openalex.org/keywords/computer-file","display_name":"Computer file","score":0.5979334712028503},{"id":"https://openalex.org/keywords/operating-system","display_name":"Operating system","score":0.5893173217773438},{"id":"https://openalex.org/keywords/versioning-file-system","display_name":"Versioning file system","score":0.5620009303092957},{"id":"https://openalex.org/keywords/file-system-fragmentation","display_name":"File system fragmentation","score":0.546481728553772},{"id":"https://openalex.org/keywords/file-control-block","display_name":"File Control Block","score":0.5186754465103149},{"id":"https://openalex.org/keywords/file-size","display_name":"File size","score":0.4870457947254181},{"id":"https://openalex.org/keywords/partition","display_name":"Partition (number theory)","score":0.48368531465530396},{"id":"https://openalex.org/keywords/unix-file-types","display_name":"Unix file types","score":0.4814971685409546},{"id":"https://openalex.org/keywords/database","display_name":"Database","score":0.4418627917766571},{"id":"https://openalex.org/keywords/device-file","display_name":"Device file","score":0.36531007289886475},{"id":"https://openalex.org/keywords/stub-file","display_name":"Stub file","score":0.22008338570594788}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.82115638256073},{"id":"https://openalex.org/C2225880","wikidata":"https://www.wikidata.org/wiki/Q579047","display_name":"Journaling file system","level":3,"score":0.7877985835075378},{"id":"https://openalex.org/C2780940931","wikidata":"https://www.wikidata.org/wiki/Q174989","display_name":"File system","level":2,"score":0.7689162492752075},{"id":"https://openalex.org/C93518851","wikidata":"https://www.wikidata.org/wiki/Q180160","display_name":"Metadata","level":2,"score":0.6931056976318359},{"id":"https://openalex.org/C95637964","wikidata":"https://www.wikidata.org/wiki/Q82753","display_name":"Computer file","level":2,"score":0.5979334712028503},{"id":"https://openalex.org/C111919701","wikidata":"https://www.wikidata.org/wiki/Q9135","display_name":"Operating system","level":1,"score":0.5893173217773438},{"id":"https://openalex.org/C166807848","wikidata":"https://www.wikidata.org/wiki/Q3445065","display_name":"Versioning file system","level":4,"score":0.5620009303092957},{"id":"https://openalex.org/C26656859","wikidata":"https://www.wikidata.org/wiki/Q4089244","display_name":"File system fragmentation","level":4,"score":0.546481728553772},{"id":"https://openalex.org/C180500224","wikidata":"https://www.wikidata.org/wiki/Q1412592","display_name":"File Control Block","level":4,"score":0.5186754465103149},{"id":"https://openalex.org/C2776029614","wikidata":"https://www.wikidata.org/wiki/Q1146367","display_name":"File size","level":2,"score":0.4870457947254181},{"id":"https://openalex.org/C42812","wikidata":"https://www.wikidata.org/wiki/Q1082910","display_name":"Partition (number theory)","level":2,"score":0.48368531465530396},{"id":"https://openalex.org/C21729314","wikidata":"https://www.wikidata.org/wiki/Q7896858","display_name":"Unix file types","level":4,"score":0.4814971685409546},{"id":"https://openalex.org/C77088390","wikidata":"https://www.wikidata.org/wiki/Q8513","display_name":"Database","level":1,"score":0.4418627917766571},{"id":"https://openalex.org/C193769178","wikidata":"https://www.wikidata.org/wiki/Q14679","display_name":"Device file","level":3,"score":0.36531007289886475},{"id":"https://openalex.org/C13674803","wikidata":"https://www.wikidata.org/wiki/Q7627301","display_name":"Stub file","level":3,"score":0.22008338570594788},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.0},{"id":"https://openalex.org/C114614502","wikidata":"https://www.wikidata.org/wiki/Q76592","display_name":"Combinatorics","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1145/1272996.1273016","is_oa":false,"landing_page_url":"https://doi.org/10.1145/1272996.1273016","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the 2nd ACM SIGOPS/EuroSys European Conference on Computer Systems 2007","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":28,"referenced_works":["https://openalex.org/W24973626","https://openalex.org/W131192878","https://openalex.org/W195253832","https://openalex.org/W201248661","https://openalex.org/W1262434878","https://openalex.org/W1506596325","https://openalex.org/W1557990038","https://openalex.org/W1593410499","https://openalex.org/W1677118421","https://openalex.org/W1913735216","https://openalex.org/W2007266407","https://openalex.org/W2008633193","https://openalex.org/W2023714872","https://openalex.org/W2025371316","https://openalex.org/W2044187025","https://openalex.org/W2067182386","https://openalex.org/W2070661538","https://openalex.org/W2100100130","https://openalex.org/W2108183412","https://openalex.org/W2114167330","https://openalex.org/W2130743551","https://openalex.org/W2133985894","https://openalex.org/W2138594496","https://openalex.org/W2139589346","https://openalex.org/W2171352284","https://openalex.org/W2178497290","https://openalex.org/W2912668062","https://openalex.org/W4285719527"],"related_works":["https://openalex.org/W4313226861","https://openalex.org/W1987834273","https://openalex.org/W2563027287","https://openalex.org/W1990666357","https://openalex.org/W2600173906","https://openalex.org/W2370972217","https://openalex.org/W2038900077","https://openalex.org/W2069457782","https://openalex.org/W2168643770","https://openalex.org/W2609643256"],"abstract_inverted_index":{"Two":[0],"oft-cited":[1],"file":[2,33,54,164,180,196],"systems,":[3,165],"the":[4,10,26,39,99,131,209,216],"Fast":[5],"File":[6,12],"System":[7,13],"(FFS)":[8],"and":[9,21,28,43,64,87,145,157,176,197],"Log-Structured":[11],"(LFS),":[14],"adopt":[15],"two":[16,58],"sharply":[17],"different":[18,120],"update":[19],"strategies---update-in-place":[20],"update-out-of-place.":[22],"This":[23,49,109],"paper":[24],"introduces":[25],"design":[27],"implementation":[29],"of":[30,41,70,101,140,153,173,188],"a":[31,77,82,93,151,171,186],"hybrid":[32],"system":[34,55,181],"called":[35,182],"hFS,":[36,67],"which":[37],"combines":[38],"strengths":[40],"FFS":[42,167,204],"LFS":[44,102],"while":[45,85],"avoiding":[46],"their":[47,62],"weaknesses.":[48],"is":[50],"accomplished":[51],"by":[52],"distributing":[53],"data":[56,68,78,121],"into":[57],"partitions":[59],"based":[60],"on":[61,137,155,185],"size":[63],"type.":[65],"In":[66,127],"blocks":[69],"large":[71,146],"regular":[72],"files":[73,89],"are":[74,90],"stored":[75,91],"in":[76,81,92,98,208,215],"partition":[79,96],"arranged":[80],"FFS-like":[83],"fashion,":[84],"metadata":[86,198],"small":[88,142,195],"separate":[94],"log":[95],"organized":[97],"spirit":[100],"but":[103],"without":[104],"incurring":[105],"any":[106],"cleaning":[107],"overhead.":[108],"segregation":[110],"makes":[111],"it":[112],"possible":[113],"to":[114,133,213],"use":[115],"more":[116],"appropriate":[117],"layouts":[118],"for":[119],"than":[122],"would":[123],"otherwise":[124],"be":[125],"possible.":[126],"particular,":[128],"hFS":[129,154,192,202],"has":[130,193],"ability":[132],"perform":[134],"clustered":[135],"I/O":[136],"all":[138],"kinds":[139],"data---including":[141],"files,":[143],"metadata,":[144],"files.":[147],"We":[148],"have":[149,158],"implemented":[150],"prototype":[152],"FreeBSD":[156],"compared":[159],"its":[160],"performance":[161],"against":[162],"three":[163],"including":[166],"with":[168,205],"Soft":[169,206],"Updates,":[170],"port":[172],"NetBSD's":[174],"LFS,":[175],"our":[177],"lightweight":[178],"journaling":[179],"yFS.":[183],"Results":[184],"number":[187],"benchmarks":[189],"show":[190],"that":[191],"excellent":[194],"performance.":[199],"For":[200],"example,":[201],"beats":[203],"Updates":[207],"range":[210],"from":[211],"53%":[212],"63%":[214],"PostMark":[217],"benchmark.":[218]},"counts_by_year":[{"year":2021,"cited_by_count":1},{"year":2020,"cited_by_count":3},{"year":2019,"cited_by_count":3},{"year":2018,"cited_by_count":3},{"year":2017,"cited_by_count":1},{"year":2016,"cited_by_count":4},{"year":2015,"cited_by_count":2},{"year":2014,"cited_by_count":4},{"year":2013,"cited_by_count":5},{"year":2012,"cited_by_count":2}],"updated_date":"2026-07-29T14:22:42.915294","created_date":"2016-06-24T00:00:00"}
