ã©ã®ãã€ããŒãã€ã¶ãŒãåªããŠãããã«ã€ããŠã®æè¿ã®è°è«ã®åŸãç¹å®ã®ååãåç
§ããã«çŸä»£ã®ä»®æ³åã·ã¹ãã ã®æ©èœãæžãåºããšããã¢ã€ãã¢ãçãŸããŸããã ããã¯ã誰ãåªããŠããããã®æ¯èŒã§ã¯ãªãããä»®æ³åã§äœãã§ãããããšãã質åã«å¯Ÿããçãã§ããç£æ¥çšä»®æ³åã®å¯èœæ§ã®äžè¬çãªæŠèŠã§ãã
ã³ãŒãå®è¡
ãã€ããŒãã€ã¶ãŒã¯ä»®æ³ãã·ã³ãå®å
šã«å¶åŸ¡ããããããã·ã³ã®ããã»ã¹ãå
·äœçã«å¶åŸ¡ã§ããŸãã
ããŸããŸãªä»®æ³åã·ã¹ãã ã¯ãã³ãŒããå®è¡ããããã®ããã€ãã®æ¹æ³ãæäŸããŸãïŒå®å
šãªãšãã¥ã¬ãŒã·ã§ã³ã¯ç£æ¥çšä»®æ³åã§ã¯äœ¿çšãããªãããããªã¹ãã«ã¯å«ãŸããŠããŸããïŒã
- ãã€ããªæžãæãã ãã®ã¢ãããŒãã§ã¯ãããŒããŠã§ã¢ä»®æ³åãªãã®ãã¹ãä»®æ³åã«VMWareãšConnectix Virtual PCïŒMicrosoftã賌å
¥ïŒã䜿çšããŸãã ãã€ããŒãã€ã¶ãŒïŒããŒãã£ã©ã€ã¶ãŒïŒã¯å®è¡å¯èœã³ãŒãã調ã¹ããã¬ãŒã¯ãã€ã³ãã§ãä»®æ³åããå¿
èŠãšããåœä»€ãããŒã¯ãããã®ãããªåœä»€ã®ã¿ããšãã¥ã¬ãŒãïŒä»®æ³åïŒããŸãã
- ããŒããŠã§ã¢ã®ä»®æ³åã Alphaããã³System / 360ã®ã¢ã³ãã£ãŒã¯ãã¯ãããžãŒãamd64 / i386ã®æ¯èŒçæ°ãããã¯ãããžãŒã ãªã³ã°-1ã®å€èгãå°å
¥ããŸããããã¯ãäžé£ã®ä»®æ³ååœä»€ãéããŠãã·ã³ãå¶åŸ¡ãããã€ããŒãã€ã¶ãŒãå®è¡ããŸãã IntelãšAMDã®ãã¯ãããžãŒã¯ãããã«ç°ãªããŸããAMDã¯ã¡ã¢ãªã³ã³ãããŒã©ãŒïŒããã»ããµäžïŒãããã°ã©ã ããŠä»®æ³åïŒãã¹ãããŒãžïŒã®èšç®è² è·ã軜æžããæ©èœãæäŸããŸããIntelã¯ãããåå¥ã®EPTãã¯ãããžãŒãšããŠå®è£
ããŸããã 補åã§ç©æ¥µçã«äœ¿çšãããVMWareãXen HVMãKVMãHyperVã§ããšã€ãªã¢ã³ã·ã¹ãã ããå®è¡ããŸãã
- æºä»®æ³åã ãã®å Žåãã²ã¹ãã·ã¹ãã ã®ã«ãŒãã«ã¯ã³ã³ãã€ã«æ®µéã§ãä»®æ³åããããŸãã ãŠãŒã¶ãŒã¹ããŒã¹ã¯å®è³ªçã«å€ãããŸããã ã²ã¹ãã·ã¹ãã ã¯ãã€ããŒãã€ã¶ãŒãšé£æºãããã€ããŒãã€ã¶ãŒãä»ããŠãã¹ãŠã®ç¹æš©åŒã³åºããè¡ããŸãã ã²ã¹ãã·ã¹ãã èªäœã®ã³ã¢ã¯ring0ã§ã¯ãªãring1ã§åäœãããããåæããã²ã¹ãã¯ãã€ããŒãã€ã¶ãŒã«å¹²æžã§ããŸããã xenïŒPVã¢ãŒãïŒããã³openvzïŒopenvzã¯äœããã®æå³ã§ãŠããŒã¯ã§ããåã«ã²ã¹ãã«ãŒãã«ãååšããªããããä»®æ³åãããååæã«è¿ããããããçšåºŠã®éé¢ããããŸããããªãŒãã³ãœãŒã¹ã·ã¹ãã ã®ä»®æ³åã«äœ¿çšãããŸããæäŸïŒã
- ã³ã³ããä»®æ³åã ãã³ã³ãããäžã®å€ãã®ããã»ã¹ãåé¢ã§ããŸããåããã»ã¹ã¯ãã³ã³ããããã®ããã»ã¹ã®ã¿ã«ã¢ã¯ã»ã¹ã§ããŸãã ããã¯ãä»®æ³åãbsdååæãããã³OSå
ã®ããã»ã¹ãçžäºã«åé¢ããããã®é©åã«äœæãããã·ã¹ãã ã®éã®åŸ®åŠãªå¢çç·äžã«ãããŸãã 䜿çšãããå
±æã¡ã¢ãªãããŒãžã£ãåãã«ãŒãã«
å®éã«ã¯ãæºä»®æ³åãã©ã€ããŒã¯HVMãšãã€ããªæžãæãïŒã²ã¹ãããŒã«ãšåŒã°ããããšãå€ãïŒã®äž¡æ¹ã§äœ¿çšãããŸãã æºä»®æ³åãããã©ãŒãã³ã¹ã«ãããŠä»ã®ãã¹ãŠã®æ¹æ³ããã倧å¹
ã«åªããŠããã®ã¯ãI / Oæäœã§ãã
äŸå€ãªãããã¹ãŠã®ãã€ããŒãã€ã¶ãŒã¯ä»®æ³ãã·ã³ã§ãµã¹ãã³ã/äžæåæ¢æäœãå®è¡ã§ããŸãã ãã®ã¢ãŒãã§ã¯ããã£ã¹ã¯ã®ã¡ã¢ãªããŒã¿ã®ä¿åãšãå埩ãïŒåéïŒåŸã®äœæ¥ã®ç¶ç¶ã«ããããã·ã³ã®åäœãäžæãããŸãã
äžè¬çãªæ©èœã¯ã
ç§»è¡ã®æŠå¿µã§ããã€ãŸããããã³ã³ãã¥ãŒã¿ãŒããå¥ã®ã³ã³ãã¥ãŒã¿ãŒãžã®ä»®æ³ãã·ã³ã®è»¢éã§ãã ã·ã£ããããŠã³ããã«ãªãã©ã€ã³ïŒ1å°ã®ã³ã³ãã¥ãŒã¿ãŒã§ãªãã2å°ç®ã®ã³ã³ãã¥ãŒã¿ãŒã§ãªã³ïŒããã³ãªã³ã©ã€ã³ïŒéåžžãã©ã€ããšåŒã°ããããã©ã€ããã€ã°ã¬ãŒã·ã§ã³ãïŒãçºçããŸãã å®éã«ã¯ããããã·ã³ã§ãµã¹ãã³ãããããŒã¿è»¢éããã»ã¹ãæé©åããŠå¥ã®ãã·ã³ã§åéããããšã䜿çšããŠå®è£
ãããŸãïŒæåã«ããŒã¿ã転éãããæ¬¡ã«ãã·ã³ããµã¹ãã³ããããç§»è¡ãéå§ãããæç¹ãã倿ŽãããããŒã¿ã転éããããã®åŸãæ°ãããã·ã³ãæ°ãããã¹ãã§éå§ãããŸãïŒã
ãŸããxenaã§ã¯ã2å°ä»¥äžã®ãã¹ãïŒRemusïŒã§1å°ã®ãã·ã³ã䞊åå®è¡ããæè¡ãçŽæãããŠããŸãïŒãããŠãã»ãšãã©è£œåã«å°å
¥ãããŠããããã§ãïŒãããã«ããããµãŒããŒã®1ã€ã«é害ãçºçããŠããäžæ/åèµ·åããã«ä»®æ³ãã·ã³ãç¶ç¶ã§ããŸãã
ã¡ã¢ãªç®¡ç
åŸæ¥ã®ä»®æ³åã¢ãã«ã§ã¯ãã²ã¹ããã·ã³ã«äžå®éã®ã¡ã¢ãªãå²ãåœãŠãããšãæ³å®ããŠããã倿Žã¯ãªãã«ãªã£ãåŸã«ã®ã¿å¯èœã§ãã
ææ°ã®ã·ã¹ãã ã§ã¯ãã²ã¹ãã·ã¹ãã ã®RAM容éãæåãŸãã¯èªåã§å€æŽããæ©èœãå®è£
ã§ããŸãã
次ã®ã¡ã¢ãªç®¡çæ¹æ³ã䜿çšã§ããŸãã
- ãã«ãŒãã³ã°ã äžè¬ã«åãå
¥ããããŠããã¡ã«ããºã ïŒå°ãªããšããVMWareã®ãããªxenãšhypervïŒã¢ã€ãã¢ã®æ¬è³ªã¯åçŽã§ããã²ã¹ãã·ã¹ãã ã®ç¹å¥ãªã¢ãžã¥ãŒã«ãã²ã¹ãã·ã¹ãã ã«ã¡ã¢ãªãèŠæ±ããããããã€ããŒãã€ã¶ãŒã«æž¡ããŸãã é©åãªã¿ã€ãã³ã°ã§ã圌ã¯ãã€ããŒãã€ã¶ãŒããã¡ã¢ãªãååŸããã²ã¹ãã·ã¹ãã ã«æäŸããŸãã äž»ãªæ©èœã¯ãä»®æ³ãã·ã³ã®ã¢ã€ãã«ã¡ã¢ãªãæ»ãæ©èœã§ãã
- ã¡ã¢ãªã®ããããã©ã°ã å€åºå
ã§ã¡ã¢ãªã远å ããŸãã Windows Serverã®å°æ¥ã®spïŒãã®ãªãªãŒã¹ã«ã¯ãŸã ãªãªãŒã¹ã¯ãããŸããïŒãxen 4.1ïŒlinux 2.6.32ïŒã®hyper-vã§ãµããŒããããŠããŸãã ããã¯ãããŒããŠã§ã¢ããããã©ã°ã«äŒŒãã¡ã¢ãªã®è¿œå ã§ãã åèµ·åããããšãªããç§»åäžã®ãµãŒããŒã«ç§»åäžã«ã¡ã¢ãªã远å ã§ããŸãã ãã®æ¹æ³ã®ä»£ããã«ããã€ããŒãã€ã¶ãŒãæ¢ã«ããŒãã§ã¯ãªããããŒã«ã§ãã·ã³ãèµ·åãããšãã«ãå¿
èŠã«å¿ããŠãå¹ãé£ã°ããããšãã§ããäºåèšåŒµããŒã«ããããŸãã çŸåšã®ãšãããã¡ã¢ãªã®ãããã¢ã³ãã©ã°ã¯Linuxã§ã®ã¿å¯èœã§ãïŒåäœãããã©ããã¯ãŸã èšããŸããïŒã ã»ãšãã©ã®å Žåãè¿ãå°æ¥ãMSã¯ãã©ã°ãæãããã«WindowsãçµäºããŸãã
- å
±éã¡ã¢ãªã ç¹ã«openvzã®å Žåãã¡ã¢ãªã¯å
±éããŒã«ããååŸãããŸããä»®æ³ãã·ã³ã¯ãå€åºäžã«å€æŽã§ããæ°å€ã®åœ¢åŒã®äººçºçãªå¶éã«ãã£ãŠã®ã¿å¶éãããŸãã ãã ããæãæè»ãªã¡ã«ããºã ã¯openvzã«åºæã®ãã®ã§ãããäžå¿«ãªã¡ã¢ãªå¹æãããã€ããããŸãã
- ã¡ã¢ãªå§çž®ã ã²ã¹ãã®ã¡ã¢ãªã¯ïŒå§çž®ã¢ã«ãŽãªãºã ã«ãã£ãŠïŒãå§çž®ããããå Žåã«ãã£ãŠã¯è¿œå ã®ããªã¥ãŒã ãåŸãããŸãã ããã«ãã£ïŒèªã¿åãããã³æžã蟌ã¿ã®é
å»¶ããã€ããŒãã€ã¶ãŒåŽããã®ããã»ããµãŒã®è² è·ã
- ããŒãžéè€æé€ã ã¡ã¢ãªããŒãžãäžèŽããå Žåããããã¯2åä¿åãããããã®ãã¡ã®1ã€ãå¥ã®ãªã³ã¯ã«ãªããŸãã è€æ°ã®ä»®æ³ãã·ã³ãåããœãããŠã§ã¢ããã±ãŒãžïŒããã³åãããŒãžã§ã³ïŒã§åæã«èµ·åãããå ŽåãããŸãæ©èœããŸãã ã³ãŒãã»ã¯ã·ã§ã³ã¯äžèŽããŠéè€æé€ãããŸãã ããŒã¿ã®éå¹çæ§ã®ããã«ãç»åã¯ãã£ã¹ã¯ãã£ãã·ã¥ã«ãã£ãŠç ŽæãããŸãããã£ã¹ã¯ãã£ãã·ã¥ã¯ãåãã·ã³ãç¬èªã«ææããŠããïŒãããŠãã¹ãŠã®ç©ºãã¡ã¢ãªãå æããããšããŠããŸãïŒã ãã¡ãããéè€ã®ãã§ãã¯ïŒã¡ã¢ãªããŒãžã®ããã·ã¥ã®èšç®ïŒã¯ç¡æã®æäœã§ã¯ãããŸããã
- NUMA-ãµãŒããŒäžã«ããããªã¥ãŒã ããã倧ããããªã¥ãŒã ã§ä»®æ³ãã·ã³ã®ã¡ã¢ãªãæ¡åŒµããæ©èœã ãã®ãã¯ãããžãŒã¯æªå å·¥ã§ãããäž»æµã§ã¯ãããŸããïŒæ·±ãæãäžããããã§ã¯ãªãã®ã§ããã以äžã¯èª¬æããŸããïŒ
- ã¡ã¢ãªãªãŒããŒã³ãããã¡ã³ã/ã¡ã¢ãªãªãŒããŒã»ã«-ä»®æ³ãã·ã³ã«å®éãããå€ãã®ã¡ã¢ãªãã¢ããŠã³ã¹ããããã®ãã¯ãããžïŒããšãã°ã䜿çšå¯èœãª16 GBã®ã¿ã§å2 GBã®10åã®ä»®æ³ãã·ã³ãžã®çŽæïŒã ãã®ãã¯ãããžãŒã¯ããã¹ãŠã®ã¡ã¢ãªã100ïŒ
ãŸã§äœ¿çšããéåžžã¢ãŒãã®ä»®æ³ãã·ã³ã¯ãªããšããèãã«åºã¥ããŠããŸãã
- ä»®æ³ãã·ã³ã®ã¡ã¢ãªããã£ã¹ã¯ã«éšåçã«ã¢ã³ããŒãã§ããäžè¬çãªã¹ã¯ããã
åšèŸºæ©åš
äžéšã®ãã€ããŒãã€ã¶ãŒã§ã¯ãä»®æ³ãã·ã³ãå®éã®æ©åšïŒããã«ãç°ãªãä»®æ³ãã·ã³ãç°ãªãæ©åšïŒã«ã¢ã¯ã»ã¹ã§ããŸãã
ãŸããã³ã³ãã¥ãŒã¿ãŒäžã«ãªãæ©åšãå«ãæ©åšããšãã¥ã¬ãŒãããããšãã§ããŸãã æãéèŠãªããã€ã¹-ãããã¯ãŒã¯ã¢ããã¿ãŒãšãã©ã€ãã¯å¥ã
ã«èæ
®ãããŸãã ãã®ä»ïŒãããªã¢ããã¿ãŒïŒ3Dãå«ãïŒãUSBãã·ãªã¢ã«/ãã©ã¬ã«ããŒããã¿ã€ããŒããŠã©ããããã°ã
ãããè¡ãã«ã¯ã次ã®ãã¯ãããžãŒã®ããããã䜿çšããŸãã
- å®ããã€ã¹ã®ãšãã¥ã¬ãŒã·ã§ã³ïŒäœéïŒ
- ã²ã¹ããã·ã³ãžã®ããã€ã¹ãžã®çŽæ¥ã¢ã¯ã»ã¹ïŒã転éãããã¹ã¹ã«ãŒãšããŠïŒã
- IOMMUïŒDMAã«äœ¿çšãããããŒãžã¢ãã¬ã¹ã®ããŒããŠã§ã¢å€æãããã«ãããä»®æ³ãã·ã³éã§ããã€ã¹ã䜿çšããRAMãå
±æã§ããŸãïŒã Intelã¯VT-dãåŒã³åºããŸãïŒVT aka vanderpoolãšæ··åããªãã§ãã ãããããã¯ãããã»ããµã®ãªã³ã°-1ã®ãã¯ãããžãŒã§ãïŒã
- æå°éã®æ©èœãå®è£
ããæºä»®æ³ããã€ã¹ã®äœæïŒå®éââã«ã¯ã2ã€ã®äž»èŠãªã¯ã©ã¹-ãããã¯ããã€ã¹ãšãããã¯ãŒã¯ããã€ã¹ã以äžã«åè§£ããŸãïŒã
ãããã¯ãŒã¯æ©åš
ãããã¯ãŒã¯ããã€ã¹ã¯éåžžã3çªç®ãŸãã¯2çªç®ã®æœè±¡åã¬ãã«ã§å®è£
ãããŸãã äœæãããä»®æ³ãããã¯ãŒã¯ã€ã³ã¿ãŒãã§ã€ã¹ã«ã¯ãä»®æ³ãã·ã³ãšãã€ããŒãã€ã¶ãŒ/å¶åŸ¡ãã¡ã€ã³/ä»®æ³åããã°ã©ã ã®2ã€ã®ç«¯ããããŸãã ã²ã¹ãããã®ãã©ãã£ãã¯ã¯å€æŽãããã«ææè
ã«éä¿¡ãããŸãïŒåéä¿¡ãäžèŽããé床ãªã©ã®ãã³ã¹ãªãïŒã ãããŠãããªãé倧ãªå°é£ãå§ãŸããŸãã
çŸæç¹ã§ã¯ã第3ã¬ãã«ïŒããšãã°ãopenvzãªã©ã®IPã¢ãã¬ã¹ã¬ãã«ïŒã§ãããã¯ãŒã¯ã€ã³ã¿ãŒãã§ã€ã¹ããšãã¥ã¬ãŒãããã·ã¹ãã ãé€ããŠãä»ã®ãã¹ãŠã®ã·ã¹ãã ã¯æ¬¡ã®æ©èœã»ãããæäŸããŸãã
- 1ã€ä»¥äžã®ç©çã€ã³ã¿ãŒãã§ãŒã¹ãšã®ã€ã³ã¿ãŒãã§ãŒã¹ã®ããªããžã³ã°ïŒç¬¬2ã¬ãã«ïŒã
- å®éã®ãããã¯ãŒã¯ã«ã¢ã¯ã»ã¹ããã«ããã¹ããšã²ã¹ãïŒ1ã€ä»¥äžïŒã®éã«ããŒã«ã«ãããã¯ãŒã¯ãäœæããŸãã ãã®å Žåããããã¯ãŒã¯ã¯çŽç²ã«ä»®æ³çãªæå³ã§ååšãããã©ã€ãããããã¯ãŒã¯ã«é¢é£ä»ããããŠããªãããšã«æ³šæããŠãã ãã
- ã²ã¹ãã·ã¹ãã ã®ã«ãŒãã£ã³ã°/ NATãã©ãã£ãã¯ã ä»®æ³ã€ã³ã¿ãŒãã§ã€ã¹ïŒããã³NAT / PATïŒã«å¯ŸããŠã«ãŒãã£ã³ã°ãæå¹ã«ãªã£ãŠãããåè¿°ã®æ¹æ³ã®ç¹æ®ãªã±ãŒã¹
- GRE / VLANã§ãã©ãã£ãã¯ãã«ãã»ã«åããããŒããŠã§ã¢ã¹ã€ãã/ã«ãŒã¿ãŒã«éä¿¡ãã
äžéšã®ä»®æ³åã·ã¹ãã ã¯ãä»®æ³ãã·ã³ã®ãããã¯ãŒã¯ã€ã³ã¿ãŒãã§ãŒã¹ãç©çãããã¯ãŒã¯ã€ã³ã¿ãŒãã§ãŒã¹ãšä»®æ³ã¹ã€ããã®ååšã§ããªããžããå Žåãåé¢ããŸãã
äžè¬çã«ãä»®æ³ãã·ã³ã®ãããã¯ãŒã¯ã¯ãç§»è¡äžã«ç¹å®ã®é çã®çš®ã瀺ããŸãã ã€ã³ã¿ãŒãã§ã€ã¹ããªããžã³ã°ãåããæ¢åã®ãã¹ãŠã®è£œåã·ã¹ãã ã¯ã1ã€ã®ãããã¯ãŒã¯ã»ã°ã¡ã³ãã§ã®ã¿ãã·ã³ã®ééçãªã©ã€ããã€ã°ã¬ãŒã·ã§ã³ãå¯èœã«ãããã©ãã£ãã¯ã¹ã€ããã³ã°ã®ããŒã倿Žã«ã€ããŠäžäœã¹ã€ããã«éç¥ããããã®ç¹å¥ãªããªãã¯ïŒåœARPïŒãå¿
èŠã§ãã
çŸæç¹ã§ã¯ãããªãè峿·±ãã·ã¹ãã ãéçºãããŠããŸã-ãªãŒãã³ãããŒã³ã³ãããŒã©ãžã®ãã±ããã®ãã¹ã決å®ããã¿ã¹ã¯ãå¯èœã«ãããªãŒãã³vSwitch-ä»®æ³ãããã¯ãŒã¯ã®æ©èœã倧å¹
ã«æ¡åŒµããå¯èœæ§ããããŸãã ãã ãããªãŒãã³ãããŒãšvSwitchã¯å°ãå€ããŠããŸãïŒå°ãåŸã§èª¬æããŸãïŒã
ãã£ã¹ã¯ïŒãããã¯ïŒããã€ã¹
ããã¯ãä»®æ³ãã·ã³ã®2çªç®ã®éèŠãªãã€ã«ã¹ããŒã³ã§ãã ããŒããã£ã¹ã¯ïŒããæ£ç¢ºã«ã¯ãæ
å ±ãä¿åããããã®ãããã¯ããã€ã¹ïŒã¯ãéèŠãªä»®æ³åã®2çªç®ã®ã³ã³ããŒãã³ãã§ãããããããæåã®ã³ã³ããŒãã³ãã§ãã ãã£ã¹ã¯ãµãã·ã¹ãã ã®ããã©ãŒãã³ã¹ã¯ãä»®æ³åã·ã¹ãã ã®ããã©ãŒãã³ã¹ãè©äŸ¡ããããã«éèŠã§ãã ããã»ããµãšã¡ã¢ãªã®å€§ããªãªãŒããŒãããïŒãªãŒããŒãããïŒã¯ããã£ã¹ã¯æäœã®ãªãŒããŒããããããç©ããã«çµéšãããŸãã
ææ°ã®ä»®æ³åã·ã¹ãã ã«ã¯ãããã€ãã®ã¢ãããŒãããããŸãã 1ã€ç®ã¯ã宿ãããã¡ã€ã«ã·ã¹ãã ãä»®æ³ãã·ã³ã«æäŸããããšã§ãã åæã«ãªãŒããŒãããã¯ãŒãã«ãªãåŸåããããŸãïŒopenvzã«åºæïŒã 2çªç®-ãããã¯ããã€ã¹ã®ãšãã¥ã¬ãŒã·ã§ã³ïŒã¹ããŒãã³ãã³ããSCSIã³ãã³ããªã©ã®ryushechekãªãïŒã ä»®æ³ãã·ã³ã®ãããã¯ããã€ã¹ã¯ãç©çããã€ã¹ïŒãã£ã¹ã¯ãããŒãã£ã·ã§ã³ãè«çããªã¥ãŒã LVMïŒãŸãã¯ãã¡ã€ã«ïŒã«ãŒãããã¯ããã€ã¹ãä»ããŠããŸãã¯ãã¡ã€ã«ã®ãå
éšãã§ãããã¯æäœãçŽæ¥ãšãã¥ã¬ãŒãããããšïŒã«ãã€ã³ããããŸãã
è¿œå æ©èœã¯ããã€ããŒãã€ã¶ãŒã«ãããããã¯ãŒã¯ã¹ãã¬ãŒãžã®äœ¿çšã§ãããã®å Žåãç§»è¡ããã»ã¹ã¯éåžžã«ç°¡åã§ãã1å°ã®ãã¹ãã§ãã·ã³ãäžæåæ¢ãã2å°ç®ã®ãã¹ããç¶ç¶ããŸãã ãã¹ãéã§ããŒã¿ã転éããŸããã
ããã«ãåºæ¬ã¬ãã«ã®ãããã¯ããã€ã¹ãããããµããŒãããŠããã°ïŒLVMããã¡ã€ã«ïŒãã»ãšãã©ã®ã·ã¹ãã ã¯ãå€åºå
ã§ä»®æ³ãããã¯ããã€ã¹ã®ãµã€ãºã倿Žããæ©èœãæäŸããŸãã ããã¯äžæ¹ã§éåžžã«äŸ¿å©ã§ãããã²ã¹ãOSã¯ä»æ¹ã§ããã«å¯ŸããŠå®å
šã«æºåãããŠããŸããã ãã¡ããããã¹ãŠã®ã·ã¹ãã ã¯ããªã³ã¶ãã©ã€ãããã¯ããã€ã¹èªäœã®è¿œå /åé€ããµããŒãããŠããŸãã
éè€æé€æ©èœã¯éåžžãåºç€ãšãªããããã¯ããã€ã¹ãããã€ããŒã«å²ãåœãŠãããŸãããããšãã°ãopenvzã§ã¯ãã³ã³ãããŒãã³ãã¬ãŒããã䜿çšããã³ããŒãªã³ã©ã€ãã¢ãŒãã䜿çšã§ããXCPã§ã¯çžäºã«ã³ããŒãªã³ã©ã€ãã®äŸåé¢ä¿ãæã€ãããã¯ããã€ã¹ã®ãã§ãŒã³ãäœæã§ããŸãã ããã«ãããçç£æ§ãäœäžããäžæ¹ã§ãã¹ããŒã¹ã倧å¹
ã«ç¯çŽã§ããŸãã ãã¡ãããå€ãã®ã·ã¹ãã ã§ã¯ããªã³ããã³ãã§ãã£ã¹ã¯ã¹ããŒã¹ãå²ãåœãŠãããšãã§ããŸãïŒVMWareãXCPãªã©ïŒ-ãããã¯ããã€ã¹ã«å¯Ÿå¿ãããã¡ã€ã«ã¯ãã¹ããŒã¹ãšããŠäœæãããŸãïŒãŸãã¯ããã¹ãããã空ã¹ããŒã¹ããµããŒãããç¹å®ã®åœ¢åŒãæã¡ãŸãïŒã
ãã£ã¹ã¯ãžã®ã¢ã¯ã»ã¹ã¯ãé床ãããããã€ã¹ïŒãŸãã¯ä»®æ³ãã·ã³ïŒã«å¯Ÿããä»ã®ããã€ã¹ã®åªå
床ã«ãã£ãŠå¶åŸ¡ã§ããŸãã VMWareã¯ãI / Oæäœã®æ°ãå¶åŸ¡ããçŽ æŽãããæ©äŒãçºè¡šããŸãããããã«ããããã¹ãŠã®ã²ã¹ããžã®ãµãŒãã¹æäŸã«ããããªé
å»¶ãçããã²ã¹ãã®æ··ä¹±ãæãé
ããªããŸãã
å°çšãã£ã¹ã¯ããã€ã¹ã¯è€æ°ã®ã²ã¹ãéã§å
±æã§ãïŒGFSãªã©ãããã«å¯Ÿå¿ãããã¡ã€ã«ã·ã¹ãã ã䜿çšããŠããå ŽåïŒãå
±æã¹ãã¬ãŒãžã䜿çšããŠã¯ã©ã¹ã¿ãŒãç°¡åã«å®è£
ã§ããŸãã
ãã€ããŒãã€ã¶ãŒãã²ã¹ãã®ã¡ãã£ã¢ãžã®ã¢ã¯ã»ã¹ãå®å
šã«å¶åŸ¡ããããããã£ã¹ã¯ã®ã¹ãããã·ã§ããïŒããã³ä»®æ³ãã·ã³èªäœïŒãäœæããã¹ãããã·ã§ããã®ããªãŒãæ§ç¯ããããšãå¯èœã«ãªããŸãïŒä»®æ³ãã·ã³ã®ç¶æ
ããããã®ã¹ãããã·ã§ããã«å«ãŸããŸãïŒè»ïŒã
åæ§ã«ãããã¯ã¢ãããå®è£
ãããŸãã ããã¯ã¢ãããå®è£
ããæãç°¡åãªæ¹æ³ã¯ãããã¯ã¢ããã·ã¹ãã ã®ãã£ã¹ã¯ãã³ããŒããããšã§ããããã¯éåžžã®ããªã¥ãŒã ããã¡ã€ã«ããŸãã¯LVããŒãã£ã·ã§ã³ã§ãããå€åºå
ãå«ããŠç°¡åã«ã³ããŒã§ããŸãã Windowsã®å Žåãéåžžãããã¯ã¢ããã®æºåã®å¿
èŠæ§ãã·ã£ããŠã³ããŒã«éç¥ããæ©äŒãäžããããŸãã
ãã€ããŒãã€ã¶ãŒãšã²ã¹ãéã®çžäºäœçš
äžéšã®ã·ã¹ãã ã§ã¯ãã²ã¹ãã·ã¹ãã ãšãã€ããŒãã€ã¶ãŒïŒããæ£ç¢ºã«ã¯ç®¡çOSïŒã®éã«éä¿¡ã¡ã«ããºã ãæäŸããããããã¯ãŒã¯ã®æäœæ§ã«é¢ä¿ãªãæ
å ±ãéä¿¡ã§ããŸãã
ã²ã¹ãã·ã¹ãã ã®ãèªå·±ç§»è¡ãã«é¢ããå®éšçãªéçºïŒè£œåã®æºåãã§ããŠããŸããïŒããããŸãã
çžäºäºææ§
ãã€ããŒãã€ã¶ãŒéã®çžäºäœçšãæšæºåããäœæ¥ãé²è¡äžã§ãã ããšãã°ãXVA圢åŒã¯ãä»®æ³ãã·ã³ããšã¯ã¹ããŒã/ã€ã³ããŒãããããã®ãã©ãããã©ãŒã ã«äŸåããªã圢åŒãšããŠææ¡ãããŠããŸãã VHD圢åŒã¯ãåãæ¡åŒµåãæã€è€æ°ã®äºææ§ã®ãªã圢åŒã§ã¯ãªãå ŽåããŠãããŒãµã«ã§ãããšäž»åŒµã§ããŸãã
ã»ãšãã©ã®ä»®æ³åã·ã¹ãã ã¯ãç«¶åä»ç€Ÿã®ä»®æ³ãã·ã³ãã倿ãããæ©èœãæäŸããŸãã ïŒãã ããå€åºå
ã§ç°ãªãã·ã¹ãã éã§ãã·ã³ãç§»è¡ã§ããã©ã€ããã€ã°ã¬ãŒã·ã§ã³ã®åäžã·ã¹ãã ã¯è¡šç€ºãããããã®ãããã¯ã«é¢ããã¹ã±ããã衚瀺ãããŸããã§ããïŒã
çµç
ã»ãšãã©ã®ãã€ããŒãã€ã¶ãŒã¯ãäœããã®åœ¢åŒã®ãã¹ãè² è·æšå®ã¡ã«ããºã ïŒçŸåšã®å€ãšãããã®å€ã®å±¥æŽã衚瀺ïŒãæäŸããŸãã äžéšã¯ããã£ãã¯ãiopsãã¡ã¬ãã€ãããããã¯ãŒã¯ãã±ãããªã©ã®çµ¶å¯Ÿæ°ã®åœ¢åŒã§æ¶è²»ããããªãœãŒã¹ãæ£ç¢ºã«èª¬æããæ©èœãæäŸããŸãã ïŒç§ãç¥ãéããããã¯Xenã®ã¿ã§ãææžåãããŠããªãæ©èœã®åœ¢ã§ã®ã¿ã§ãïŒã
åäŒãšç®¡ç
ã»ãšãã©ã®ææ°äžä»£ã®ã·ã¹ãã ã§ã¯ãè² è·ç®¡ççšã®ã€ã³ãã©ã¹ãã©ã¯ãã£ãæäŸããããã€ã³ãã©ã¹ãã©ã¯ãã£å
ã®åãµãŒããŒã«æ¢è£œã®è² è·ç®¡çãµãŒãã¹ãããã«æäŸããããšã«ãããè€æ°ã®ä»®æ³åãã·ã³ãåäžã®æ§é ïŒã¯ã©ãŠããããŒã«ãªã©ïŒã«çµåã§ããŸãã ããã¯ãæåã«ã次ã®è»ãã©ãããéå§ãããããèªåçã«éžæããããšã«ãã£ãŠã次ã«ãã¹ããåçã«ããŒãããããã«ã²ã¹ããèªåçã«ç§»è¡ããããšã«ãã£ãŠè¡ãããŸãã åæã«ãå
±æãããã¯ãŒã¯ã¹ãã¬ãŒãžã䜿çšããå ŽåãæãåçŽãªãã©ãŒã«ããã¬ã©ã³ã¹ïŒé«å¯çšæ§ïŒããµããŒããããŸã-倿°ã®ä»®æ³ãã·ã³ãæã€1ã€ã®ãã¹ãã忢ããå Žåãä»®æ³ãã·ã³ã¯ã€ã³ãã©ã¹ãã©ã¯ãã£ã®äžéšã§ããä»ã®ãã¹ãã§å®è¡ãããŸãã
ããããã®ã·ã¹ãã ã®ããã€ãã®éèŠãªæ©èœãèŠéããå Žåãããšãã°ã