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Virtualization Fundamental
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HASUNUMA Kenji
April 20, 2016
Programming
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Virtualization Fundamental
HASUNUMA Kenji
April 20, 2016
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Transcript
Virtualization Fundamental HASUNUMA Kenji k.hasunuma@coppermine.jp @khasunuma
ԾԽͱ What’s virtualization?
ຊԿ
ຊԿ
ԾԽͷຊ࣭ ݟ͍͑ͯΔͷ㱠ཧతͳͷ w ཧઃܭʹറΒΕͳ͍ཧઃܭ w ཧઃܭͷมߋʹڧ͍ཧઃܭ
ओͳԾԽςΫϊϩδʔ w ϋʔυΣΞԾԽ w σεΫτοϓԾԽ w ΞϓϦέʔγϣϯԾԽ w ετϨʔδԾԽ w
ωοτϫʔΫԾԽ
ϋʔυΣΞԾԽ w ͷཧϚγϯʹෳͷԾϚγϯ Λߏங͢Δ w ར༻ऀʹɺෳͷϚγϯ͕ಈ࡞ͯ͠ ͍Δ͔ͷΑ͏ʹݟ͔͚ͤΔ w ͬͱྺ࢙͕ݹ͘ɺීٴ͍ͯ͠Δ
σεΫτοϓԾԽ w ϦϞʔτɾσεΫτοϓͷൃలܗ ӳޠུশVDIΑ͘༻͍ΒΕΔ w ଟͷϢʔβʔʹରͯ͠ҟͳΔσεΫ τοϓΛఏڙ͢Δ w γϯɾΫϥΠΞϯτͷج൫ٕज़
ΞϓϦέʔγϣϯԾԽ w දྫJavaԾϚγϯ(Java VM) w OS͝ͱͷAPIࠩҟΛٵऩ͢Δ w OS͔ΒݟΕ୯ͳΔϓϩηε w ίϯςφԾԽ(Docker,
Solaris Zone, FreeBSD Jail)ൃల
ԾԽͷྺ࢙ History of virtualization
ूதॲཧ `ʙ ݶΒΕͨϦιʔε ʮόονॲཧʯͰޮԽ
ԾԽͷొ bʙ *#.$1$.4ͷొ ෳͷ04Λಉ࣮࣌ߦԾԽͷݩ
͜΅Ε w CP/CMS࣌ͷOS୯ҰϢʔβʔ༻ w Multics = ϚϧνϢʔβʔOS (TSS) ˠݟࣄʹίέΔ w
ݩMultics։ൃऀ͕झຯͰUnixΛ։ൃ ˠେϒϨΠΫ͠ɺޙൃͷOSʹӨڹ
μϯαΠδϯά `ʙ ϗετʹΑΔूதॲཧ͔Βɺ খܕίϯϐϡʔλʹΑΔࢄॲཧ
࠶ͼूதॲཧ `ʙ αʔόʔʹॲཧ͕ूத ʮαʔόʔͷϝΠϯϑϨʔϜԽʯ
ϋʔυΣΞԾԽ Hardware virtualization
ϋʔυΣΞԾԽख๏ w ϗετ04ܕ˞؆қͳݕূڥ͖ w VMware (w/o vSphere), VirtualBox w ϋΠύʔόΠβʔܕ˞࣮ӡ༻Ͱͷओྲྀ
w Xenܕ : Citrix Xen, Microsoft Hyper-V w ESXiܕ : VMware ESXi (vSphere) • KVMܕ : Linux KVM
ϗετOSܕ
ϗετ04ܕͷಛ w طଘͷ04্ʹ7..ΛߏஙͰ͖Δ w ྺ࢙͕ݹ͘ɺଟ͘ͷήετ04ʹରԠ w ϋΠύʔόΠβʔܕʹൺֱͯ͠ޮ͕ ѱ͘ɺ࣮ӡ༻ʹ͔ͳ͍
Xenܕ Dom0VMM Λ੍ޚ͢Δ
9FOܕͷಛ w ϋΠύʔόΠβʔܕͱ࣮ͯ͠๛ɺ Hyper-VجຊઃܭXenϕʔε w ४ԾԽ͕جຊ͕ͩɺશԾԽར༻ Մೳ w ࣮ӡ༻Ͱɺ͍͔ʹDom0ͷফඅϦιʔ εΛখ͘͢͞Δ͔͕伴
શԾԽͱ४ԾԽ ४ԾԽ શԾԽ
શԾԽ w Guest OS͕ఏڙ͢ΔυϥΠόʔΛར༻ w VMMଆϋʔυΣΞͷΤϛϡϨʔ γϣϯʹప͢Δ w ෦ͰখࡉύϑΥʔϚϯεԼ ˠԾԽࢧԉػೳ
Intel VT/AMD-V
४ԾԽ w VMM͕ఏڙ͢ΔυϥΠόʔΛར༻ w VMMଆ࠷খݶͷΤϛϡϨʔγϣϯ ˠߴ͍ύϑΥʔϚϯε w XenHyper-VͰՄೳͳݶΓ४Ծ ԽΛݕ౼͢Δ͜ͱ
ESXiܕ ཧઐ༻04 ඞਢͰͳ͍
&49Jܕͷಛ w VMMຊମΛۃখԽɺήετOSׂ ՄೳͳϦιʔε࠷େ w Intel VT/AMD-VͷԾԽࢧԉػೳ͕ ඞਢ w ϋʔυΣΞͱͷ૬ੑ͕γϏΞ
KVMܕ LinuxΧʔωϧ ࣗମΛVMMʹ͠ ͯ͠·͍ͬͯΔ
,7.ܕͷಛ w LinuxʹࡌʢΧʔωϧʙʣ w LinuxΧʔωϧͦͷͷΛVMMԽ w ݪଇͱͯ͠શԾԽͷΈαϙʔτ વIntel VT/AMD-Vඞਢ
ԾԽʹؔ͢Δߟ Virtualization
ԾԽͷϝϦοτ w Ϧιʔεͷ༗ޮ׆༻ جຊɺίϯϐϡʔλʔՋ͍ͯ͠Δ w ཧతͳαʔόʔͷݮ چ04ͷूɺ։ൃڥͷαʔό౷߹ w
ϋʔυΣΞ04ͷࠩҟΛٵऩ
ԾԽͷσϝϦοτ w ԾԽٕज़ͦͷͷʹཱͬͨσϝ Ϧοτͳ͍ w ʮͦͷҊ݅ɺຊʹʰԾԽʱ ͕ඞཁͰ͔͢ʁʯ w ԾԽܾͯ͠ʮۜͷؙʯͰͳ͍
ԾԽͰҙ͍ͨ͜͠ͱ Ϧιʔεʹཁҙ ʮཧϚγϯͷϦιʔεʯ ɹʼʮىಈதͷԾϚγϯͷϦιʔεʯ ԾԽڥ্Ͱ͞ΒʹԾԽ͠ͳ͍ ɹˠ௨ৗɺԿ͕͓͜Δ͔Θ͔Βͳ͍
ԾԽͷ͜͏ଆ Beyond virtualization
ΫϥυڀۃͷԾԽ w Ϋϥυ㲈σʔληϯλʔͷԾԽ w ΫϥυͰ͕ͯ͢ԾԽ w ඞཁͳͱ͖ɺඞཁͳϦιʔεΛௐୡ w ॴɾ࣌ؒΛΘͣΞΫηεՄೳ
Ϋϥυͷ෭࣍తޮೳ େنΫϥυੈքల։ w ෛՙฏ४Խ ౦ژ͕தൟظͰ/:ؒؓࢄظ ˠ/:ͷ༨ϦιʔεΛ౦ژʹճͤΔ w ࡂରࡦ ͋ΔҬ͕ඃࡂͯ͠ɺଞҬͷσʔλη ϯλʔ͕όοΫΞοϓ
Ϋϥυར༻࣌ͷҙ w ࣄۀऀͱར༻ऀͷ৴པ͕ؔୈҰ w ΫϥυͷαʔϏεଟछଟ༷ IaaS, PaaS, SaaS, etc. w
ʮΫϥυ͋Γ͖ʯͰͳ͘ɺγεςϜ ΛޮΑ࣮͘ݱ͢Δखஈ
Virtualization Fundamental HASUNUMA Kenji k.hasunuma@coppermine.jp @khasunuma