{"id":"https://openalex.org/W4410357339","doi":"https://doi.org/10.1145/3672608.3707937","title":"CRAZNS: A Case for Conventional Namespace Support for RAID with ZNS SSDs","display_name":"CRAZNS: A Case for Conventional Namespace Support for RAID with ZNS SSDs","publication_year":2025,"publication_date":"2025-03-31","ids":{"openalex":"https://openalex.org/W4410357339","doi":"https://doi.org/10.1145/3672608.3707937"},"language":"en","primary_location":{"id":"doi:10.1145/3672608.3707937","is_oa":true,"landing_page_url":"https://doi.org/10.1145/3672608.3707937","pdf_url":"https://dl.acm.org/doi/pdf/10.1145/3672608.3707937","source":null,"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the 40th ACM/SIGAPP Symposium on Applied Computing","raw_type":"proceedings-article"},"type":"article","indexed_in":["crossref"],"open_access":{"is_oa":true,"oa_status":"gold","oa_url":"https://dl.acm.org/doi/pdf/10.1145/3672608.3707937","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5107901584","display_name":"H. Kim","orcid":null},"institutions":[{"id":"https://openalex.org/I859038795","display_name":"Virginia Tech","ror":"https://ror.org/02smfhw86","country_code":"US","type":"education","lineage":["https://openalex.org/I859038795"]}],"countries":["US"],"is_corresponding":true,"raw_author_name":"Hangyul Kim","raw_affiliation_strings":["Virginia Tech, Blacksburg, VA, USA"],"affiliations":[{"raw_affiliation_string":"Virginia Tech, Blacksburg, VA, USA","institution_ids":["https://openalex.org/I859038795"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5101718458","display_name":"Inho Song","orcid":"https://orcid.org/0009-0001-1446-2025"},"institutions":[{"id":"https://openalex.org/I859038795","display_name":"Virginia Tech","ror":"https://ror.org/02smfhw86","country_code":"US","type":"education","lineage":["https://openalex.org/I859038795"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Inho Song","raw_affiliation_strings":["Virginia Tech, Blacksburg, VA, USA"],"affiliations":[{"raw_affiliation_string":"Virginia Tech, Blacksburg, VA, USA","institution_ids":["https://openalex.org/I859038795"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5070346739","display_name":"Sam H. Noh","orcid":"https://orcid.org/0000-0002-9152-0321"},"institutions":[{"id":"https://openalex.org/I859038795","display_name":"Virginia Tech","ror":"https://ror.org/02smfhw86","country_code":"US","type":"education","lineage":["https://openalex.org/I859038795"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Sam H. Noh","raw_affiliation_strings":["Virginia Tech, Arlington, VA, USA"],"affiliations":[{"raw_affiliation_string":"Virginia Tech, Arlington, VA, USA","institution_ids":["https://openalex.org/I859038795"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":3,"corresponding_author_ids":["https://openalex.org/A5107901584"],"corresponding_institution_ids":["https://openalex.org/I859038795"],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":true,"cited_by_count":0,"citation_normalized_percentile":{"value":0.10843872,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":null,"issue":null,"first_page":"1391","last_page":"1398"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11181","display_name":"Advanced Data Storage Technologies","score":0.9998000264167786,"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":0.9998000264167786,"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":0.9973000288009644,"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/T11614","display_name":"Cloud Data Security Solutions","score":0.9742000102996826,"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/namespace","display_name":"Namespace","score":0.9666351079940796},{"id":"https://openalex.org/keywords/raid","display_name":"RAID","score":0.8111866116523743},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.6554344296455383},{"id":"https://openalex.org/keywords/operating-system","display_name":"Operating system","score":0.42786264419555664},{"id":"https://openalex.org/keywords/database","display_name":"Database","score":0.36894798278808594}],"concepts":[{"id":"https://openalex.org/C2778383056","wikidata":"https://www.wikidata.org/wiki/Q873636","display_name":"Namespace","level":2,"score":0.9666351079940796},{"id":"https://openalex.org/C133320665","wikidata":"https://www.wikidata.org/wiki/Q179299","display_name":"RAID","level":2,"score":0.8111866116523743},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6554344296455383},{"id":"https://openalex.org/C111919701","wikidata":"https://www.wikidata.org/wiki/Q9135","display_name":"Operating system","level":1,"score":0.42786264419555664},{"id":"https://openalex.org/C77088390","wikidata":"https://www.wikidata.org/wiki/Q8513","display_name":"Database","level":1,"score":0.36894798278808594}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1145/3672608.3707937","is_oa":true,"landing_page_url":"https://doi.org/10.1145/3672608.3707937","pdf_url":"https://dl.acm.org/doi/pdf/10.1145/3672608.3707937","source":null,"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the 40th ACM/SIGAPP Symposium on Applied Computing","raw_type":"proceedings-article"},{"id":"pmh:oai:vtechworks.lib.vt.edu:10919/137480","is_oa":true,"landing_page_url":"https://hdl.handle.net/10919/137480","pdf_url":null,"source":{"id":"https://openalex.org/S4306400248","display_name":"VTechWorks (Virginia Tech)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I859038795","host_organization_name":"Virginia Tech","host_organization_lineage":["https://openalex.org/I859038795"],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":null,"raw_type":"Text"}],"best_oa_location":{"id":"doi:10.1145/3672608.3707937","is_oa":true,"landing_page_url":"https://doi.org/10.1145/3672608.3707937","pdf_url":"https://dl.acm.org/doi/pdf/10.1145/3672608.3707937","source":null,"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the 40th ACM/SIGAPP Symposium on Applied Computing","raw_type":"proceedings-article"},"sustainable_development_goals":[],"awards":[{"id":"https://openalex.org/G8275158370","display_name":null,"funder_award_id":"2312785","funder_id":"https://openalex.org/F4320306076","funder_display_name":"National Science Foundation"},{"id":"https://openalex.org/G848032724","display_name":null,"funder_award_id":"Science","funder_id":"https://openalex.org/F4320306076","funder_display_name":"National Science Foundation"}],"funders":[{"id":"https://openalex.org/F4320306076","display_name":"National Science Foundation","ror":"https://ror.org/021nxhr62"},{"id":"https://openalex.org/F4320307793","display_name":"Western Digital","ror":"https://ror.org/02hqwnx33"}],"has_content":{"grobid_xml":true,"pdf":true},"content_urls":{"pdf":"https://content.openalex.org/works/W4410357339.pdf","grobid_xml":"https://content.openalex.org/works/W4410357339.grobid-xml"},"referenced_works_count":15,"referenced_works":["https://openalex.org/W1981469302","https://openalex.org/W2016624911","https://openalex.org/W2112896300","https://openalex.org/W2147504831","https://openalex.org/W2751343396","https://openalex.org/W3172127112","https://openalex.org/W3207452942","https://openalex.org/W4283372300","https://openalex.org/W4283397468","https://openalex.org/W4318541628","https://openalex.org/W4327522317","https://openalex.org/W4381612920","https://openalex.org/W4383816111","https://openalex.org/W4383816132","https://openalex.org/W4400081660"],"related_works":["https://openalex.org/W4391375266","https://openalex.org/W2899084033","https://openalex.org/W2748952813","https://openalex.org/W2370740425","https://openalex.org/W2912172084","https://openalex.org/W2295002787","https://openalex.org/W4233446872","https://openalex.org/W3017834062","https://openalex.org/W4205941804","https://openalex.org/W2390562010"],"abstract_inverted_index":{"Zoned":[0],"Namespace":[1],"(ZNS)":[2],"SSDs":[3,6,35,66],"are":[4,51,151],"flash-based":[5],"that":[7,95,98,114,150,171],"maintain":[8],"several":[9],"zones":[10,206],"in":[11,27,59,92,183],"storage.":[12],"Each":[13],"zone":[14],"has":[15],"its":[16],"own":[17],"write":[18,23,38,42,187],"pointer":[19],"to":[20,103,122,142],"prevent":[21],"any":[22],"requests":[24],"from":[25],"occurring":[26],"front":[28],"of":[29,64,88,117,147,158,185],"or":[30],"behind":[31],"it.":[32],"While":[33],"ZNS":[34,65,93,100,112,126],"achieve":[36],"improved":[37],"performance":[39,175],"with":[40,78],"the":[41,86,124,136,144,163],"pointer,":[43],"they":[44],"also":[45],"face":[46],"limitations":[47],"as":[48,67,204],"in-place":[49],"updates":[50],"not":[52],"allowed.":[53],"This":[54],"limitation":[55],"poses":[56],"a":[57,61,89,111,118],"challenge":[58],"building":[60],"Redundant":[62],"Array":[63],"metadata":[68],"and":[69,102,108,153,178],"partial":[70],"parity":[71],"logs":[72],"can":[73,207],"be":[74,208],"done":[75],"more":[76,205],"efficiently":[77],"overwrites.":[79],"In":[80],"this":[81],"paper,":[82],"we":[83,106],"advocate":[84],"for":[85,135,165,172],"use":[87,116,143],"conventional":[90,119,137],"namespace":[91],"RAID,":[94,127],"is,":[96],"RAID":[97],"uses":[99,129],"SSDs,":[101],"support":[104],"this,":[105],"design":[107],"implement":[109],"CRAZNS,":[110],"RAID-5":[113],"makes":[115],"namespace.":[120],"Compared":[121],"RAIZN,":[123],"state-of-the-art":[125],"CRAZNS":[128,179,189,196],"4":[130],"GB":[131],"extra":[132],"storage":[133,159],"space":[134,160],"namespace,":[138],"but":[139,182],"is":[140,190],"able":[141],"maximum":[145],"number":[146],"zoned":[148],"namespaces":[149],"possible":[152],"saves":[154],"almost":[155],"26":[156],"GiB":[157],"by":[161,200],"eliminating":[162],"need":[164],"Metadata":[166],"zones.":[167],"Performance":[168],"evaluations":[169],"show":[170],"individual":[173],"applications":[174],"between":[176],"RAIZN":[177,203],"were":[180],"similar,":[181],"terms":[184],"small":[186],"throughput,":[188],"1.2\u00d7":[191],"higher":[192],"than":[193],"RAIZN.":[194],"Also,":[195],"enhances":[197],"overall":[198],"throughput":[199],"1.1\u00d7":[201],"over":[202],"kept":[209],"open.":[210]},"counts_by_year":[],"updated_date":"2026-03-15T09:29:46.208133","created_date":"2025-10-10T00:00:00"}