{"id":"https://openalex.org/W2130797519","doi":"https://doi.org/10.1109/mass.2003.1194859","title":"Concept and evaluation of X-NAS: a highly scalable NAS system","display_name":"Concept and evaluation of X-NAS: a highly scalable NAS system","publication_year":2003,"publication_date":"2003-08-27","ids":{"openalex":"https://openalex.org/W2130797519","doi":"https://doi.org/10.1109/mass.2003.1194859","mag":"2130797519"},"language":"en","primary_location":{"id":"doi:10.1109/mass.2003.1194859","is_oa":false,"landing_page_url":"https://doi.org/10.1109/mass.2003.1194859","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"20th IEEE/11th NASA Goddard Conference on Mass Storage Systems and Technologies, 2003. (MSST 2003). Proceedings.","raw_type":"proceedings-article"},"type":"article","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/A5109379639","display_name":"Y. Yasuda","orcid":"https://orcid.org/0009-0002-8155-1762"},"institutions":[{"id":"https://openalex.org/I65143321","display_name":"Hitachi (Japan)","ror":"https://ror.org/02exqgm79","country_code":"JP","type":"company","lineage":["https://openalex.org/I65143321"]}],"countries":["JP"],"is_corresponding":true,"raw_author_name":"Y. Yasuda","raw_affiliation_strings":["Hitachi Ltd., Central Research Laboratory, Japan"],"affiliations":[{"raw_affiliation_string":"Hitachi Ltd., Central Research Laboratory, Japan","institution_ids":["https://openalex.org/I65143321"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5042955874","display_name":"S. Kawarnoto","orcid":null},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"S. Kawarnoto","raw_affiliation_strings":[],"affiliations":[]},{"author_position":"middle","author":{"id":"https://openalex.org/A5079812830","display_name":"Atsushi Ebata","orcid":null},"institutions":[{"id":"https://openalex.org/I65143321","display_name":"Hitachi (Japan)","ror":"https://ror.org/02exqgm79","country_code":"JP","type":"company","lineage":["https://openalex.org/I65143321"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"A. Ebata","raw_affiliation_strings":["Hitachi Ltd., Central Research Laboratory, Japan"],"affiliations":[{"raw_affiliation_string":"Hitachi Ltd., Central Research Laboratory, Japan","institution_ids":["https://openalex.org/I65143321"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5065749329","display_name":"Jun Okitsu","orcid":"https://orcid.org/0000-0001-7827-4528"},"institutions":[{"id":"https://openalex.org/I65143321","display_name":"Hitachi (Japan)","ror":"https://ror.org/02exqgm79","country_code":"JP","type":"company","lineage":["https://openalex.org/I65143321"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"J. Okitsu","raw_affiliation_strings":["Hitachi Ltd., Central Research Laboratory, Japan"],"affiliations":[{"raw_affiliation_string":"Hitachi Ltd., Central Research Laboratory, Japan","institution_ids":["https://openalex.org/I65143321"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5026796192","display_name":"Takahiro Higuchi","orcid":"https://orcid.org/0000-0002-1989-736X"},"institutions":[{"id":"https://openalex.org/I65143321","display_name":"Hitachi (Japan)","ror":"https://ror.org/02exqgm79","country_code":"JP","type":"company","lineage":["https://openalex.org/I65143321"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"T. Higuchi","raw_affiliation_strings":["Hitachi Ltd., Central Research Laboratory, Japan"],"affiliations":[{"raw_affiliation_string":"Hitachi Ltd., Central Research Laboratory, Japan","institution_ids":["https://openalex.org/I65143321"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":5,"corresponding_author_ids":["https://openalex.org/A5109379639"],"corresponding_institution_ids":["https://openalex.org/I65143321"],"apc_list":null,"apc_paid":null,"fwci":1.9867,"has_fulltext":false,"cited_by_count":19,"citation_normalized_percentile":{"value":0.89484253,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":94},"biblio":{"volume":null,"issue":null,"first_page":"219","last_page":"227"},"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":0.9991999864578247,"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/T10715","display_name":"Distributed and Parallel Computing Systems","score":0.9945999979972839,"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":0.8457560539245605},{"id":"https://openalex.org/keywords/scalability","display_name":"Scalability","score":0.7402461767196655},{"id":"https://openalex.org/keywords/daemon","display_name":"Daemon","score":0.7112399339675903},{"id":"https://openalex.org/keywords/file-system","display_name":"File system","score":0.6645919680595398},{"id":"https://openalex.org/keywords/operating-system","display_name":"Operating system","score":0.6389886140823364},{"id":"https://openalex.org/keywords/virtual-file-system","display_name":"Virtual file system","score":0.5251017808914185},{"id":"https://openalex.org/keywords/throughput","display_name":"Throughput","score":0.5073639750480652},{"id":"https://openalex.org/keywords/protocol","display_name":"Protocol (science)","score":0.4904641807079315},{"id":"https://openalex.org/keywords/key","display_name":"Key (lock)","score":0.4587221145629883},{"id":"https://openalex.org/keywords/file-server","display_name":"File server","score":0.4373965859413147},{"id":"https://openalex.org/keywords/ssh-file-transfer-protocol","display_name":"SSH File Transfer Protocol","score":0.4206128418445587},{"id":"https://openalex.org/keywords/device-file","display_name":"Device file","score":0.41792556643486023},{"id":"https://openalex.org/keywords/self-certifying-file-system","display_name":"Self-certifying File System","score":0.4105464816093445},{"id":"https://openalex.org/keywords/computer-network","display_name":"Computer network","score":0.40457844734191895},{"id":"https://openalex.org/keywords/database","display_name":"Database","score":0.3650001287460327},{"id":"https://openalex.org/keywords/computer-file","display_name":"Computer file","score":0.2795224189758301}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.8457560539245605},{"id":"https://openalex.org/C48044578","wikidata":"https://www.wikidata.org/wiki/Q727490","display_name":"Scalability","level":2,"score":0.7402461767196655},{"id":"https://openalex.org/C2777253204","wikidata":"https://www.wikidata.org/wiki/Q308980","display_name":"Daemon","level":2,"score":0.7112399339675903},{"id":"https://openalex.org/C2780940931","wikidata":"https://www.wikidata.org/wiki/Q174989","display_name":"File system","level":2,"score":0.6645919680595398},{"id":"https://openalex.org/C111919701","wikidata":"https://www.wikidata.org/wiki/Q9135","display_name":"Operating system","level":1,"score":0.6389886140823364},{"id":"https://openalex.org/C58861120","wikidata":"https://www.wikidata.org/wiki/Q1330734","display_name":"Virtual file system","level":5,"score":0.5251017808914185},{"id":"https://openalex.org/C157764524","wikidata":"https://www.wikidata.org/wiki/Q1383412","display_name":"Throughput","level":3,"score":0.5073639750480652},{"id":"https://openalex.org/C2780385302","wikidata":"https://www.wikidata.org/wiki/Q367158","display_name":"Protocol (science)","level":3,"score":0.4904641807079315},{"id":"https://openalex.org/C26517878","wikidata":"https://www.wikidata.org/wiki/Q228039","display_name":"Key (lock)","level":2,"score":0.4587221145629883},{"id":"https://openalex.org/C4373008","wikidata":"https://www.wikidata.org/wiki/Q513349","display_name":"File server","level":2,"score":0.4373965859413147},{"id":"https://openalex.org/C88520388","wikidata":"https://www.wikidata.org/wiki/Q1126823","display_name":"SSH File Transfer Protocol","level":4,"score":0.4206128418445587},{"id":"https://openalex.org/C193769178","wikidata":"https://www.wikidata.org/wiki/Q14679","display_name":"Device file","level":3,"score":0.41792556643486023},{"id":"https://openalex.org/C82820731","wikidata":"https://www.wikidata.org/wiki/Q2640620","display_name":"Self-certifying File System","level":3,"score":0.4105464816093445},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.40457844734191895},{"id":"https://openalex.org/C77088390","wikidata":"https://www.wikidata.org/wiki/Q8513","display_name":"Database","level":1,"score":0.3650001287460327},{"id":"https://openalex.org/C95637964","wikidata":"https://www.wikidata.org/wiki/Q82753","display_name":"Computer file","level":2,"score":0.2795224189758301},{"id":"https://openalex.org/C204787440","wikidata":"https://www.wikidata.org/wiki/Q188504","display_name":"Alternative medicine","level":2,"score":0.0},{"id":"https://openalex.org/C71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","level":0,"score":0.0},{"id":"https://openalex.org/C555944384","wikidata":"https://www.wikidata.org/wiki/Q249","display_name":"Wireless","level":2,"score":0.0},{"id":"https://openalex.org/C142724271","wikidata":"https://www.wikidata.org/wiki/Q7208","display_name":"Pathology","level":1,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1109/mass.2003.1194859","is_oa":false,"landing_page_url":"https://doi.org/10.1109/mass.2003.1194859","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"20th IEEE/11th NASA Goddard Conference on Mass Storage Systems and Technologies, 2003. (MSST 2003). Proceedings.","raw_type":"proceedings-article"},{"id":"pmh:oai:CiteSeerX.psu:10.1.1.175.815","is_oa":false,"landing_page_url":"http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.175.815","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"http://www.storageconference.org/2003/papers/30-Yasuda-Concept.pdf","raw_type":"text"}],"best_oa_location":null,"sustainable_development_goals":[{"score":0.5,"display_name":"Reduced inequalities","id":"https://metadata.un.org/sdg/10"}],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":8,"referenced_works":["https://openalex.org/W70446922","https://openalex.org/W115345273","https://openalex.org/W150388362","https://openalex.org/W1891714287","https://openalex.org/W2028928922","https://openalex.org/W2050559702","https://openalex.org/W4285719527","https://openalex.org/W6604696177"],"related_works":["https://openalex.org/W2109426882","https://openalex.org/W2350632151","https://openalex.org/W3772390","https://openalex.org/W2014021111","https://openalex.org/W2096829770","https://openalex.org/W1576817767","https://openalex.org/W4309866799","https://openalex.org/W2097152548","https://openalex.org/W2006519720","https://openalex.org/W1987221064"],"abstract_inverted_index":{"X-NAS":[0,35,60,62,100,103,118],"(expandable":[1],"network":[2],"attached":[3],"storage),":[4],"a":[5,24,37,48,55,120,128],"highly":[6],"scalable,":[7],"distributed":[8],"file":[9,40],"system":[10,41],"designed":[11,106],"for":[12,27,67,95],"entry-level":[13],"NAS,":[14,131],"has":[15,63],"been":[16],"developed.":[17],"It":[18],"virtualizes":[19],"multiple":[20],"NAS":[21,73],"systems":[22],"into":[23],"single-file-system":[25],"view":[26],"different":[28],"kinds":[29],"of":[30,34,92],"clients.":[31,96],"The":[32],"core":[33],"is":[36,136],"multi-protocol":[38],"virtualized":[39],"(MVFS),":[42],"and":[43,54,80,89,107,124],"its":[44,133],"key":[45,65],"features":[46,66],"-":[47,58],"smart-code":[49],"wrapper":[50],"daemon,":[51],"file-group":[52],"mapping,":[53],"file-handle":[56],"cache":[57],"improve":[59],"scalability.":[61],"other":[64],"improving":[68],"the":[69,99,111],"manageability":[70],"on":[71],"many":[72],"systems;":[74],"namely,":[75],"on-line":[76],"reconfiguration,":[77],"autonomous":[78],"rebalancing,":[79],"automatic":[81],"migration,":[82],"in":[83],"which":[84],"files":[85],"are":[86],"migrated":[87],"automatically":[88],"dynamically":[90],"independently":[91],"file-sharing":[93],"services":[94],"To":[97],"validate":[98],"concept,":[101],"an":[102],"prototype":[104],"was":[105],"tested":[108],"according":[109],"to":[110],"NFSv2":[112],"implementation.":[113],"These":[114],"tests":[115],"indicate":[116],"that":[117],"attains":[119],"quicker":[121],"response":[122],"time":[123],"higher":[125],"throughput":[126],"than":[127],"conventional":[129],"single":[130],"so":[132],"cost-performance":[134],"scalability":[135],"also":[137],"higher.":[138]},"counts_by_year":[{"year":2022,"cited_by_count":1},{"year":2021,"cited_by_count":1},{"year":2020,"cited_by_count":1},{"year":2018,"cited_by_count":1},{"year":2012,"cited_by_count":1}],"updated_date":"2026-04-05T17:49:38.594831","created_date":"2025-10-10T00:00:00"}
