{"id":"https://openalex.org/W3082592086","doi":"https://doi.org/10.1147/jrd.2020.3008100","title":"IBM z15: Improved data center density and energy efficiency, new system packaging, and modeling","display_name":"IBM z15: Improved data center density and energy efficiency, new system packaging, and modeling","publication_year":2020,"publication_date":"2020-09-01","ids":{"openalex":"https://openalex.org/W3082592086","doi":"https://doi.org/10.1147/jrd.2020.3008100","mag":"3082592086"},"language":"en","primary_location":{"id":"doi:10.1147/jrd.2020.3008100","is_oa":false,"landing_page_url":"https://doi.org/10.1147/jrd.2020.3008100","pdf_url":null,"source":{"id":"https://openalex.org/S4210219925","display_name":"IBM Journal of Research and Development","issn_l":"0018-8646","issn":["0018-8646","2151-8556"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310320652","host_organization_name":"IBM","host_organization_lineage":["https://openalex.org/P4310320652"],"host_organization_lineage_names":["IBM"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IBM Journal of Research and Development","raw_type":"journal-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/A5000790928","display_name":"W. P. Kostenko","orcid":null},"institutions":[],"countries":[],"is_corresponding":true,"raw_author_name":"W. P. Kostenko","raw_affiliation_strings":[""],"affiliations":[{"raw_affiliation_string":"","institution_ids":[]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5086261914","display_name":"John Torok","orcid":null},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"J. G. Torok","raw_affiliation_strings":[""],"affiliations":[{"raw_affiliation_string":"","institution_ids":[]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5012555696","display_name":"Dustin W. Demetriou","orcid":null},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"D. W. Demetriou","raw_affiliation_strings":[""],"affiliations":[{"raw_affiliation_string":"","institution_ids":[]}]}],"institutions":[],"countries_distinct_count":0,"institutions_distinct_count":3,"corresponding_author_ids":["https://openalex.org/A5000790928"],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":0.9241,"has_fulltext":false,"cited_by_count":6,"citation_normalized_percentile":{"value":0.72502904,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":95},"biblio":{"volume":"64","issue":"5/6","first_page":"16:1","last_page":"16:10"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10054","display_name":"Parallel Computing and Optimization Techniques","score":0.9997000098228455,"subfield":{"id":"https://openalex.org/subfields/1708","display_name":"Hardware and Architecture"},"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/T10054","display_name":"Parallel Computing and Optimization Techniques","score":0.9997000098228455,"subfield":{"id":"https://openalex.org/subfields/1708","display_name":"Hardware and Architecture"},"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/T11181","display_name":"Advanced Data Storage Technologies","score":0.9990000128746033,"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":0.9952999949455261,"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/data-center","display_name":"Data center","score":0.7570748925209045},{"id":"https://openalex.org/keywords/ibm","display_name":"IBM","score":0.5723316073417664},{"id":"https://openalex.org/keywords/ashrae-90.1","display_name":"ASHRAE 90.1","score":0.516497790813446},{"id":"https://openalex.org/keywords/context","display_name":"Context (archaeology)","score":0.5059923529624939},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.4628182649612427},{"id":"https://openalex.org/keywords/flexibility","display_name":"Flexibility (engineering)","score":0.4594403803348541},{"id":"https://openalex.org/keywords/efficient-energy-use","display_name":"Efficient energy use","score":0.44809654355049133},{"id":"https://openalex.org/keywords/rack","display_name":"Rack","score":0.4274487793445587},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.3620795011520386},{"id":"https://openalex.org/keywords/automotive-engineering","display_name":"Automotive engineering","score":0.3574656844139099},{"id":"https://openalex.org/keywords/simulation","display_name":"Simulation","score":0.3569289743900299},{"id":"https://openalex.org/keywords/electrical-engineering","display_name":"Electrical engineering","score":0.3006443381309509},{"id":"https://openalex.org/keywords/mechanical-engineering","display_name":"Mechanical engineering","score":0.2249467372894287},{"id":"https://openalex.org/keywords/operating-system","display_name":"Operating system","score":0.17699196934700012}],"concepts":[{"id":"https://openalex.org/C153740404","wikidata":"https://www.wikidata.org/wiki/Q671224","display_name":"Data center","level":2,"score":0.7570748925209045},{"id":"https://openalex.org/C70388272","wikidata":"https://www.wikidata.org/wiki/Q5968558","display_name":"IBM","level":2,"score":0.5723316073417664},{"id":"https://openalex.org/C206145494","wikidata":"https://www.wikidata.org/wiki/Q4654236","display_name":"ASHRAE 90.1","level":2,"score":0.516497790813446},{"id":"https://openalex.org/C2779343474","wikidata":"https://www.wikidata.org/wiki/Q3109175","display_name":"Context (archaeology)","level":2,"score":0.5059923529624939},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.4628182649612427},{"id":"https://openalex.org/C2780598303","wikidata":"https://www.wikidata.org/wiki/Q65921492","display_name":"Flexibility (engineering)","level":2,"score":0.4594403803348541},{"id":"https://openalex.org/C2742236","wikidata":"https://www.wikidata.org/wiki/Q924713","display_name":"Efficient energy use","level":2,"score":0.44809654355049133},{"id":"https://openalex.org/C2776843527","wikidata":"https://www.wikidata.org/wiki/Q1351382","display_name":"Rack","level":2,"score":0.4274487793445587},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.3620795011520386},{"id":"https://openalex.org/C171146098","wikidata":"https://www.wikidata.org/wiki/Q124192","display_name":"Automotive engineering","level":1,"score":0.3574656844139099},{"id":"https://openalex.org/C44154836","wikidata":"https://www.wikidata.org/wiki/Q45045","display_name":"Simulation","level":1,"score":0.3569289743900299},{"id":"https://openalex.org/C119599485","wikidata":"https://www.wikidata.org/wiki/Q43035","display_name":"Electrical engineering","level":1,"score":0.3006443381309509},{"id":"https://openalex.org/C78519656","wikidata":"https://www.wikidata.org/wiki/Q101333","display_name":"Mechanical engineering","level":1,"score":0.2249467372894287},{"id":"https://openalex.org/C111919701","wikidata":"https://www.wikidata.org/wiki/Q9135","display_name":"Operating system","level":1,"score":0.17699196934700012},{"id":"https://openalex.org/C151730666","wikidata":"https://www.wikidata.org/wiki/Q7205","display_name":"Paleontology","level":1,"score":0.0},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.0},{"id":"https://openalex.org/C153294291","wikidata":"https://www.wikidata.org/wiki/Q25261","display_name":"Meteorology","level":1,"score":0.0},{"id":"https://openalex.org/C105795698","wikidata":"https://www.wikidata.org/wiki/Q12483","display_name":"Statistics","level":1,"score":0.0},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.0},{"id":"https://openalex.org/C86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","level":0,"score":0.0},{"id":"https://openalex.org/C192562407","wikidata":"https://www.wikidata.org/wiki/Q228736","display_name":"Materials science","level":0,"score":0.0},{"id":"https://openalex.org/C171250308","wikidata":"https://www.wikidata.org/wiki/Q11468","display_name":"Nanotechnology","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1147/jrd.2020.3008100","is_oa":false,"landing_page_url":"https://doi.org/10.1147/jrd.2020.3008100","pdf_url":null,"source":{"id":"https://openalex.org/S4210219925","display_name":"IBM Journal of Research and Development","issn_l":"0018-8646","issn":["0018-8646","2151-8556"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310320652","host_organization_name":"IBM","host_organization_lineage":["https://openalex.org/P4310320652"],"host_organization_lineage_names":["IBM"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IBM Journal of Research and Development","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[{"display_name":"Affordable and clean energy","id":"https://metadata.un.org/sdg/7","score":0.8899999856948853}],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":2,"referenced_works":["https://openalex.org/W2294411787","https://openalex.org/W2789330360"],"related_works":["https://openalex.org/W199964844","https://openalex.org/W4241198601","https://openalex.org/W123492951","https://openalex.org/W1597511198","https://openalex.org/W2636827625","https://openalex.org/W4220786729","https://openalex.org/W2165967062","https://openalex.org/W4389065284","https://openalex.org/W2903994135","https://openalex.org/W2185314374"],"abstract_inverted_index":{"The":[0,26,86,122,138,170],"IBM":[1,44],"z15":[2,27,57,87,123,139],"is":[3,28,147],"designed":[4],"to":[5,175,182,196],"meet":[6],"the":[7,34,38,43,49,72,89,125,141,162,165,199,202],"requirements":[8],"of":[9,12,33,37,91,143,164,172],"a":[10,29,144],"range":[11],"data":[13,107,167],"centers,":[14],"while":[15,77],"reducing":[16,135],"costs":[17],"through":[18],"increased":[19],"density,":[20],"configuration":[21,56],"flexibility,":[22],"and":[23,31,69,113,115,117,120,157,191],"cooling":[24],"efficiency.":[25],"continuation":[30],"broadening":[32],"physical":[35],"transformation":[36],"mainframe":[39],"that":[40,146],"began":[41],"with":[42],"z14":[45],"ZR1/LR1,":[46],"which":[47],"introduced":[48],"new":[50,173],"\u201ctrue":[51],"19-in\u201d":[52],"frame.":[53],"A":[54],"maximum":[55,74],"delivers":[58],"greater":[59],"than":[60,67],"30%":[61],"additional":[62],"compute":[63],"capacity":[64],"per":[65],"watt":[66],"z14,":[68],"maintains":[70,140],"approximately":[71],"same":[73],"system":[75,145,203],"footprint,":[76],"enabling":[78],"significant":[79],"floor":[80],"space":[81],"reduction":[82],"for":[83,184,201],"most":[84,106],"configurations.":[85],"introduces":[88],"choice":[90],"integrated":[92],"2N":[93],"power":[94,98],"using":[95],"either":[96],"intelligent":[97],"distribution":[99],"units":[100],"or":[101],"bulk":[102],"power,":[103,177],"also":[104],"supporting":[105],"centers":[108],"including":[109],"hot/cold-aisle":[110],"containment,":[111],"raised-floor":[112],"nonraised-floor,":[114],"top":[116],"bottom-exit":[118],"I/O":[119,154],"power.":[121],"supports":[124],"ASHRAE":[126],"A3":[127],"(fourth":[128],"edition)":[129],"environment,":[130],"providing":[131],"efficiency":[132],"advantages":[133],"by":[134],"humidification":[136],"requirements.":[137],"value":[142],"preconfigured/pretested":[148],"before":[149],"shipping.":[150],"Innovations":[151],"in":[152,161,198],"packaging,":[153],"cabling,":[155],"controls,":[156],"testing":[158],"are":[159,204],"put":[160],"context":[163],"latest":[166],"center":[168],"trends.":[169],"capabilities":[171],"tools":[174],"estimate":[176],"weight,":[178],"airflow,":[179],"heat":[180],"extracted":[181],"water":[183],"water-cooled":[185],"systems":[186],"as":[187,189],"well":[188],"3-D":[190],"computational":[192],"fluid":[193],"dynamics":[194],"models":[195],"aid":[197],"planning":[200],"described.":[205]},"counts_by_year":[{"year":2025,"cited_by_count":1},{"year":2024,"cited_by_count":1},{"year":2022,"cited_by_count":1},{"year":2021,"cited_by_count":2},{"year":2020,"cited_by_count":1}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}