Virtualization Fundamental

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Virtualization Fundamental HASUNUMA Kenji k.hasunuma@coppermine.jp @khasunuma

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Ծ૝Խͱ͸ What’s virtualization?

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ຊ౰͸Կ୆

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ຊ౰͸Կ୆

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Ծ૝Խͷຊ࣭ ݟ͍͑ͯΔ΋ͷ㱠෺ཧతͳ΋ͷ w ෺ཧઃܭʹറΒΕͳ͍࿦ཧઃܭ w ࿦ཧઃܭͷมߋʹڧ͍෺ཧઃܭ

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ओͳԾ૝ԽςΫϊϩδʔ w ϋʔυ΢ΣΞԾ૝Խ w σεΫτοϓԾ૝Խ w ΞϓϦέʔγϣϯԾ૝Խ w ετϨʔδԾ૝Խ w ωοτϫʔΫԾ૝Խ

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ϋʔυ΢ΣΞԾ૝Խ w ୆ͷ෺ཧϚγϯʹෳ਺ͷԾ૝Ϛγϯ Λߏங͢Δ w ར༻ऀʹ͸ɺෳ਺ͷϚγϯ͕ಈ࡞ͯ͠ ͍Δ͔ͷΑ͏ʹݟ͔͚ͤΔ w ΋ͬͱ΋ྺ࢙͕ݹ͘ɺීٴ͍ͯ͠Δ

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σεΫτοϓԾ૝Խ w ϦϞʔτɾσεΫτοϓͷൃలܗ  ӳޠུশVDI΋Α͘༻͍ΒΕΔ w ଟ਺ͷϢʔβʔʹରͯ͠ҟͳΔσεΫ τοϓΛఏڙ͢Δ w γϯɾΫϥΠΞϯτͷج൫ٕज़

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ΞϓϦέʔγϣϯԾ૝Խ w ୅දྫJavaԾ૝Ϛγϯ(Java VM) w OS͝ͱͷAPIࠩҟΛٵऩ͢Δ w OS͔ΒݟΕ͹୯ͳΔϓϩηε w ίϯςφԾ૝Խ(Docker, Solaris Zone, FreeBSD Jail)΁ൃల

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Ծ૝Խͷྺ࢙ History of virtualization

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ूதॲཧ `ʙ ݶΒΕͨϦιʔε ʮόονॲཧʯͰޮ཰Խ

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Ծ૝Խͷొ৔ bʙ *#.$1$.4ͷొ৔ ෳ਺ͷ04Λಉ࣮࣌ߦԾ૝Խͷݩ૆

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͜΅Ε࿩ w CP/CMS࣌୅ͷOS͸୯ҰϢʔβʔ༻ w Multics = ϚϧνϢʔβʔOS (TSS)  ˠݟࣄʹίέΔ w ݩMultics։ൃऀ͕झຯͰUnixΛ։ൃ  ˠେϒϨΠΫ͠ɺޙൃͷOSʹӨڹ

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μ΢ϯαΠδϯά `ʙ ϗετʹΑΔूதॲཧ͔Βɺ  খܕίϯϐϡʔλʹΑΔ෼ࢄॲཧ΁

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࠶ͼूதॲཧ΁ `ʙ αʔόʔʹॲཧ͕ूத ʮαʔόʔͷϝΠϯϑϨʔϜԽʯ

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ϋʔυ΢ΣΞԾ૝Խ Hardware virtualization

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ϋʔυ΢ΣΞԾ૝Խख๏ w ϗετ04ܕ˞؆қͳݕূ؀ڥ޲͖ 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

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ϗετOSܕ

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ϗετ04ܕͷಛ௃ w طଘͷ04্ʹ7..ΛߏஙͰ͖Δ w ྺ࢙͕ݹ͘ɺଟ͘ͷήετ04ʹରԠ w ϋΠύʔόΠβʔܕʹൺֱͯ͠ޮ཰͕ ѱ͘ɺ࣮ӡ༻ʹ޲͔ͳ͍

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Xenܕ Dom0͸VMM Λ੍ޚ͢Δ

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9FOܕͷಛ௃ w ϋΠύʔόΠβʔܕͱͯ͠͸࣮੷๛෋ɺ Hyper-V΋جຊઃܭ͸Xenϕʔε w ४Ծ૝Խ͕جຊ͕ͩɺ׬શԾ૝Խ΋ར༻ Մೳ w ࣮ӡ༻Ͱ͸ɺ͍͔ʹDom0ͷফඅϦιʔ εΛখ͘͢͞Δ͔͕伴

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׬શԾ૝Խͱ४Ծ૝Խ ४Ծ૝Խ ׬શԾ૝Խ

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׬શԾ૝Խ w Guest OS͕ఏڙ͢ΔυϥΠόʔΛར༻ w VMMଆ͸ϋʔυ΢ΣΞͷΤϛϡϨʔ γϣϯʹప͢Δ w ಺෦Ͱখࡉ޻ύϑΥʔϚϯε௿Լ  ˠԾ૝Խࢧԉػೳ Intel VT/AMD-V౳

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४Ծ૝Խ w VMM͕ఏڙ͢ΔυϥΠόʔΛར༻ w VMMଆ͸࠷খݶͷΤϛϡϨʔγϣϯ  ˠߴ͍ύϑΥʔϚϯε w Xen΍Hyper-VͰ͸ՄೳͳݶΓ४Ծ૝ ԽΛݕ౼͢Δ͜ͱ

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ESXiܕ ؅ཧઐ༻04͸ ඞਢͰͳ͍

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&49Jܕͷಛ௃ w VMMຊମΛۃখԽɺήετOS΁ׂ౰ ՄೳͳϦιʔε͸࠷େ w Intel VT/AMD-V౳ͷԾ૝Խࢧԉػೳ͕ ඞਢ w ϋʔυ΢ΣΞͱͷ૬ੑ໰୊͕γϏΞ

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KVMܕ LinuxΧʔωϧ ࣗମΛVMMʹ͠ ͯ͠·͍ͬͯΔ

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,7.ܕͷಛ௃ w Linuxʹ౥ࡌʢΧʔωϧʙʣ w LinuxΧʔωϧͦͷ΋ͷΛVMMԽ w ݪଇͱͯ͠׬શԾ૝ԽͷΈαϙʔτ  ౰વIntel VT/AMD-V͸ඞਢ

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Ծ૝Խʹؔ͢Δߟ࡯ Virtualization

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Ծ૝ԽͷϝϦοτ w Ϧιʔεͷ༗ޮ׆༻  جຊɺίϯϐϡʔλʔ͸Ջ͍ͯ͠Δ w ෺ཧతͳαʔόʔ਺ͷ࡟ݮ  چ04ͷू໿ɺ։ൃ؀ڥͷαʔό౷߹ w ϋʔυ΢ΣΞ΍04ͷࠩҟΛٵऩ

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Ծ૝ԽͷσϝϦοτ w Ծ૝Խٕज़ͦͷ΋ͷʹ͸໨ཱͬͨσϝ Ϧοτ͸ͳ͍ w ʮͦͷҊ݅ɺຊ౰ʹʰԾ૝Խʱ ͕ඞཁͰ͔͢ʁʯ w Ծ૝Խ͸ܾͯ͠ʮۜͷ஄ؙʯͰ͸ͳ͍

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Ծ૝ԽͰ஫ҙ͍ͨ͜͠ͱ Ϧιʔε഑෼ʹཁ஫ҙ  ʮ෺ཧϚγϯͷϦιʔεʯ  ɹʼʮىಈதͷԾ૝ϚγϯͷϦιʔεʯ Ծ૝Խ؀ڥ্Ͱ͞ΒʹԾ૝Խ͠ͳ͍  ɹˠ௨ৗɺԿ͕͓͜Δ͔Θ͔Βͳ͍

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Ծ૝Խͷ޲͜͏ଆ Beyond virtualization

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Ϋϥ΢υڀۃͷԾ૝Խ w Ϋϥ΢υ㲈σʔληϯλʔͷԾ૝Խ w Ϋϥ΢υͰ͸͢΂͕ͯԾ૝Խ w ඞཁͳͱ͖ɺඞཁͳϦιʔεΛௐୡ w ৔ॴɾ࣌ؒΛ໰ΘͣΞΫηεՄೳ

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Ϋϥ΢υͷ෭࣍తޮೳ େن໛Ϋϥ΢υ͸ੈքల։ w ෛՙฏ४Խ  ౦ژ͕೔தൟ๩ظͰ΋/:͸໷ؒؓࢄظ  ˠ/:ͷ༨৒ϦιʔεΛ౦ژʹճͤΔ w ࡂ֐ରࡦ  ͋Δ஍Ҭ͕ඃࡂͯ͠΋ɺଞ஍Ҭͷσʔλη ϯλʔ͕όοΫΞοϓ

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Ϋϥ΢υར༻࣌ͷ஫ҙ఺ w ࣄۀऀͱར༻ऀͷ৴པؔ܎͕ୈҰ w Ϋϥ΢υͷαʔϏε͸ଟछଟ༷  IaaS, PaaS, SaaS, etc. w ʮΫϥ΢υ͋Γ͖ʯͰͳ͘ɺγεςϜ Λޮ཰Α࣮͘ݱ͢Δखஈ

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Virtualization Fundamental HASUNUMA Kenji k.hasunuma@coppermine.jp @khasunuma