305 幎ã«ãªãªãŒã¹ãããäžçåã®ããŒã ãã©ã€ãã§ãã IBM RAMAC 1956 ã¯ãããã 5 MB ã®ããŒã¿ãä¿æããéé㯠970 kg ã§ããµã€ãºã¯æ¥åçšå·èµåº«ã«å¹æµããŸããã çŸä»£ã®äŒæ¥ã®äž»å補åã¯ã20 TB ã®å®¹éãèªãããšããããŸãã æ³åããŠã¿ãŠãã ããã64 幎åããã®éã®æ
å ±ãèšé²ããã«ã¯ 4 äžå°ä»¥äžã® RAMAC 305 ãå¿
èŠã§ãããããå容ããããã«å¿
èŠãªããŒã¿ ã»ã³ã¿ãŒã®ãµã€ãºã¯ 9 å¹³æ¹ããã¡ãŒãã«ãè¶
ããŠããã§ããããäžæ¹ãçŸåšã§ã¯éãã¯å°ããªç®±ã«éããŸãããçŽ700ã°ã©ã ïŒ ããŸããŸãªæå³ã§ããã®é©ç°çãªèšæ¶å¯åºŠã®å¢å ã¯ãç£æ°èšé²æ¹åŒã®æ¹åã®ãããã§éæãããŸããã
ä¿¡ããããªããããããŸããããããŒã ãã©ã€ãã®åºæ¬èšèšã¯ 40 幎ããã»ãŒ 1983 幎éå€ãã£ãŠããŸãããã¹ã³ããã©ã³ãã®äŒç€Ÿ Rodime ãéçºããæåã® 3,5 ã€ã³ã ããŒã ãã©ã€ã RO351 ãäžã«åºãã®ã¯ãã®æã§ããã ãã®èµ€ã¡ãã㯠10 ã€ã® 412MB ãã©ãã¿ãŒãåããŠãããå幎㫠IBM 5,25 ããŒãœãã« ã³ã³ãã¥ãŒã¿çšã«ãªãªãŒã¹ããã Seagate ã®ææ°ã® 5160 ã€ã³ã ST-XNUMX ã® XNUMX åã®ããŒã¿ãä¿æã§ããããšãæå³ããŸãã
Rodime RO351 - äžçåã® 3,5 ã€ã³ã ããŒããã©ã€ã
ãã®é©æ°æ§ãšã³ã³ãã¯ããªãµã€ãºã«ãããããããRO351 ã¯çºå£²åœæã誰ã«ãšã£ãŠãå®è³ªçã«åœ¹ã«ç«ããªãããšãå€æããããŒããã©ã€ãåžå Žã«è¶³ããããåŸãããšããããã€ã ã®ãã®åŸã®è©Šã¿ã¯ãã¹ãŠå€±æã«çµãããŸããããã®ããã1991 幎ã«å瀟ã¯æ€éãäœåãªããããŸããã掻åãåæ¢ããæ¢åè³ç£ã®ã»ãŒãã¹ãŠã売åŽããã¹ã¿ãããæå°éã«åæžããŸãã ããããRodime ã¯ç Žç£ããéåœã«ã¯ãããŸããã§ãããããã«æ倧æã®ããŒã ãã©ã€ã ã¡ãŒã«ãŒã Rodime ã«é£çµ¡ãåãå§ããã¹ã³ããã©ã³ã人ãç¹èš±ãååŸãããã©ãŒã ãã¡ã¯ã¿ãŒã䜿çšããããã®ã©ã€ã»ã³ã¹ãè³Œå ¥ããããšèããŠããŸããã çŸåšã3,5 ã€ã³ãã¯ãæ¶è²»è åã HDD ãšãšã³ã¿ãŒãã©ã€ãº ã¯ã©ã¹ã®ãã©ã€ãã®äž¡æ¹ã®è£œé ã«ãããŠäžè¬çã«åãå ¥ããããŠããæšæºã§ãã
ãã¥ãŒã©ã« ãããã¯ãŒã¯ããã£ãŒã ã©ãŒãã³ã°ãã¢ãã®ã€ã³ã¿ãŒããã (IoT) ã®åºçŸã«ããã人é¡ãäœæããããŒã¿ã®éã¯é£èºçã«å¢å ãå§ããŸããã åææ©é¢ IDC ã®æšèšã«ãããšã2025 幎ã«ã¯ 175 Z ãã€ãã§ãã£ãã«ããããããã1 幎ãŸã§ã«äººéèªèº«ãšåšå²ã®ããã€ã¹ã®äž¡æ¹ã«ãã£ãŠçæãããæ å ±é㯠1021 ãŒã¿ãã€ã (2019 Z ãã€ã = 45 ãã€ã) ã«éãããšäºæ³ãããŠããŸãã ã2016 幎ã«ã¯ 16 Z ãã€ãã2006 幎ã«ã¯ã芳枬å¯èœãªå±¥æŽå šäœã§çæãããããŒã¿ã®ç·é㯠0,16 (!) Z ãã€ããè¶ ããŸããã§ããã ææ°ã®ãã¯ãããžãŒã¯æ å ±ççºã«å¯ŸåŠããã®ã«åœ¹ç«ã£ãŠãããç¹ã«ããŒã¿èšé²æ¹æ³ã®æ¹è¯ããã®äžäŸã§ãã
LMRãPMRãCMRãTDMR: éãã¯äœã§ãã?
ããŒããã©ã€ãã®åäœåçã¯éåžžã«åçŽã§ãã 匷ç£æ§ææïŒãã¥ãªãŒç¹ä»¥äžã®æž©åºŠã§å€éšç£å Žã«ãããããªãå Žåã§ãç£åãç¶æã§ããçµæ¶è³ªç©è³ªïŒã®å±€ã§ã³ãŒãã£ã³ã°ãããèãéå±ãã¬ãŒãã¯ãæžã蟌ã¿ããããŠãããã«å¯ŸããŠé«éã§ç§»åããŸãïŒæ¯å5400å転ãŸãã¯ãã£ãšïŒã æžã蟌ã¿ãããã«é»æµãå°å ããããšã亀çªç£çãçºçãã匷ç£æ§äœã®ãã¡ã€ã³ (ç©è³ªã®é¢æ£é å) ã®ç£åãã¯ãã«ã®æ¹åãå€ãããŸãã ããŒã¿ã®èªã¿åãã¯ãé»ç£èªå°çŸè±¡ (ã»ã³ãµãŒã«å¯Ÿããç£åºã®ç§»åã«ãããã»ã³ãµãŒå ã«äº€æµé»æµãçºçããŸã) ãŸãã¯å·šå€§ç£æ°æµæå¹æ (ç£çã®åœ±é¿äžã§ãé»æ°çãªé»æµãçºçããŸã) ã®ããããã«ãã£ãŠçºçããŸããææ°ã®ãã©ã€ãã«å®è£ ãããŠããããã«ãã»ã³ãµãŒã®æµæãå€åããŸã)ã åãã¡ã€ã³ã¯ 0 ãããã®æ å ±ããšã³ã³ãŒãããç£åãã¯ãã«ã®æ¹åã«å¿ããŠè«çå€ã1ããŸãã¯ãXNUMXãããšããŸãã
é·ãéãããŒã ãã©ã€ãã§ã¯ãç£åºç£åãã¯ãã«ãç£æ°ãã¬ãŒãã®å¹³é¢å ã«ããé·ææ¹åç£æ°èšé² (LMR) æ¹åŒã䜿çšãããŠããŸããã å®è£ ãæ¯èŒçç°¡åã§ããã«ããããããããã®æè¡ã«ã¯é倧ãªæ¬ ç¹ããããŸãããä¿ç£å (ç£æ§ç²åã®åç£åºç¶æ ãžã®ç§»è¡) ãå æããã«ã¯ãç£æ§ç²åãšç£æ§ç²åã®éã«å°è±¡çãªãããã¡ ãŸãŒã³ (ããããã¬ãŒã ã¹ããŒã¹) ãæ®ããªããã°ãªããŸããã§ããããã©ãã¯ã ãã®çµæããã®æè¡ã®æçµçã«éæãããæ倧èšé²å¯åºŠã¯ããã 150 Gbit/inch2 ã§ããã
2010 幎ã«ãLMR ã¯ã»ãŒå®å
šã« PMR (åçŽç£æ°èšé²) ã«çœ®ãæããããŸããã ãã®æè¡ãšé¢å
ç£æ°èšé²ã®äž»ãªéãã¯ãåãã¡ã€ã³ã®ç£æ°æ¹åãã¯ãã«ãç£æ§æ¿ã®è¡šé¢ã«å¯Ÿã㊠90°ã®è§åºŠã«é
眮ãããŠãããããã«ãããã©ãã¯éã®ã®ã£ããã倧å¹
ã«æžå°ããŠããããšã§ãã
ããã«ãããããŒããã©ã€ãã®é床ç¹æ§ãšä¿¡é Œæ§ãç ç²ã«ããããšãªããããŒã¿èšé²å¯åºŠãå€§å¹ ã«åäžããŸãã (ææ°ã®ããã€ã¹ã§ã¯æ倧 1 Tbit/in2)ã çŸåšãåçŽç£æ°èšé²ãåžå Žãæ¯é ããŠãããããCMR (Conventional Magnetic Recording) ãšãåŒã°ããŸãã åæã«ãPMR ãš CMR ã«ã¯ãŸã£ããéãã¯ãªããååã®ããŒãžã§ã³ãç°ãªãã ãã§ããããšãç解ããå¿ èŠããããŸãã
ææ°ã®ããŒããã©ã€ãã®æè¡çç¹åŸŽãç 究ããŠãããšãTDMR ãšããè¬ã®ç¥èªã«ééãããããããŸããã ç¹ã«ããã®ãã¯ãããžãŒã¯ãšã³ã¿ãŒãã©ã€ãºã¯ã©ã¹ã®ãã©ã€ãã§äœ¿çšãããŸãã
TDMR ãã¯ãããžãŒã䜿çšããŠäœæãããããŒããã©ã€ãã®ç£æ°ãããã®ãããã¯ã§ã¯ãåæžã蟌ã¿ãããã« XNUMX ã€ã®èªã¿åãã»ã³ãµãŒããããééããåãã©ãã¯ããããŒã¿ãåæã«èªã¿åããŸãã ãã®åé·æ§ã«ãããHDD ã³ã³ãããŒã©ã¯ããã©ãã¯éå¹²æž (ITI) ã«ãã£ãŠçºçããé»ç£ãã€ãºãå¹æçã«ãã£ã«ã¿ãªã³ã°ã§ããŸãã
ITI åé¡ã解決ãããšã次㮠XNUMX ã€ã®éåžžã«éèŠãªå©ç¹ãããããããŸãã
- ãã€ãºä¿æ°ãäœæžãããšããã©ãã¯éã®è·é¢ãçããªãèšé²å¯åºŠãåäžããåŸæ¥ã® PMR ãšæ¯èŒããŠç·å®¹éãæ倧 10% åäžããŸãã
- RVS ãã¯ãããžãŒãš XNUMX ããžã·ã§ã³ ãã€ã¯ãã¢ã¯ãã¥ãšãŒã¿ãçµã¿åããã TDMR ã¯ãããŒããã©ã€ãã«ãã£ãŠåŒãèµ·ããããå転æ¯åã«å¹æçã«æµæããæãå°é£ãªåäœæ¡ä»¶ã§ãäžè²«ããã¬ãã«ã®ããã©ãŒãã³ã¹ãéæããã®ã«åœ¹ç«ã¡ãŸãã
SMRãšã¯äœã§ãã?äœãšäžç·ã«é£ã¹ãŸãã?
æžã蟌ã¿ãããã®ãµã€ãºã¯ãèªã¿åãã»ã³ãµãŒã®ãµã€ãºãšæ¯èŒããŠçŽ1,7å倧ãããªããŸãã ãã®ãããªå°è±¡çãªéãã¯éåžžã«ç°¡åã«èª¬æã§ããŸããèšé²ã¢ãžã¥ãŒã«ãããã«å°ååãããå Žåãçæã§ããç£çã®åŒ·ãã¯åŒ·ç£æ§å±€ã®ç£åºãç£åããã®ã«ååã§ã¯ãããŸãããã€ãŸããããŒã¿ã¯åçŽã«ç£åãããŠããŸãã®ã§ããä¿ç®¡ãããªãããšã èªã¿åãã»ã³ãµãŒã®å Žåã¯ãã®åé¡ã¯çºçããŸããã ããã«ããã®å°ååã«ãããæ å ±èªã¿åãããã»ã¹ã«å¯Ÿããäžèšã®ITIã®åœ±é¿ãããã«äœæžããããšãå¯èœãšãªãã
ãã®äºå®ãã·ã³ã°ã«ç£æ°èšé² (SMR) ã®åºç€ã圢æããŸããã ãããã©ã®ããã«æ©èœããããèŠãŠã¿ãŸãããã åŸæ¥ã® PMR ã䜿çšããå Žåãæžã蟌ã¿ãããã¯ãåã®åãã©ãã¯ã«å¯ŸããŠããã®å¹ + ã¬ãŒã ã¹ããŒã¹ã®å¹ ã«çããè·é¢ã ãã·ãããããŸãã
ã¿ã€ã«ç£æ°èšé²æ¹åŒã䜿çšããå Žåãæžã蟌ã¿ãããã¯ãã®å¹
ã®äžéšã ããåæ¹ã«ç§»åãããããåã®ãã©ãã¯ã¯æ¬¡ã®ãã©ãã¯ã«ãã£ãŠéšåçã«äžæžããããŸããã€ãŸããç£æ°ãã©ãã¯ã¯å±æ ¹çŠã®ããã«äºãã«éãªãåããŸãã ãã®ã¢ãããŒãã«ãããèªã¿åãããã»ã¹ã«åœ±é¿ãäžããããšãªããèšé²å¯åºŠãããã«é«ããããšãã§ããæ倧 10% ã®å®¹éå¢å ãå¯èœã«ãªããŸãã äŸãšããŠã¯ã
ãã®ãããªå€§ããªå©ç¹ã«ãããããããSMR ã«ã¯æãããªæ¬ ç¹ããããŸãã ç£æ°ãã©ãã¯ã¯äºãã«éãªãåã£ãŠãããããããŒã¿ãæŽæ°ããã«ã¯ãå¿
èŠãªãã©ã°ã¡ã³ãã ãã§ãªããç£æ°ãã©ãã¿ãŒå
ã®åŸç¶ã®ãã¹ãŠã®ãã©ãã¯ã®åæžã蟌ã¿ãå¿
èŠã«ãªãããã®å®¹é㯠2 ãã©ãã€ããè¶
ããå Žåããããããã©ãŒãã³ã¹ã®å€§å¹
ãªäœäžã«ã€ãªããå¯èœæ§ããããŸãã
ãã®åé¡ã¯ãäžå®æ°ã®ãã©ãã¯ããŸãŒã³ãšåŒã°ããåå¥ã®ã°ã«ãŒãã«çµåããããšã§è§£æ±ºã§ããŸãã ããŒã¿ ã¹ãã¬ãŒãžãæŽçãããã®ã¢ãããŒãã§ã¯ãHDD ã®å šäœçãªå®¹éãå€å°æžå°ããŸãã (é£æ¥ããã°ã«ãŒãã®ãã©ãã¯ãäžæžããããã®ãé²ãããã«ããŸãŒã³éã«ååãªã®ã£ãããç¶æããå¿ èŠããããã)ãããŒã¿ã®æŽæ°ããã»ã¹ãå€§å¹ ã«é«éåã§ããŸããéãããæ°ã®ãã©ãã¯ã®ã¿ãå«ãŸããŸãã
ã¿ã€ã«ç£æ°èšé²ã«ã¯ãããã€ãã®å®è£
ãªãã·ã§ã³ãå«ãŸããŸãã
- ãã©ã€ããããŒãžã SMR
ãã®äž»ãªå©ç¹ã¯ãHDD ã³ã³ãããŒã©ãŒãããŒã¿èšé²æé ãå¶åŸ¡ããããããã¹ã ãœãããŠã§ã¢ãããŒããŠã§ã¢ãå€æŽããå¿ èŠããªãããšã§ãã ãã®ãããªãã©ã€ãã¯ãå¿ èŠãªã€ã³ã¿ãŒãã§ã€ã¹ (SATA ãŸã㯠SAS) ãåããä»»æã®ã·ã¹ãã ã«æ¥ç¶ã§ãããã®åŸããã«äœ¿çšã§ããããã«ãªããŸãã
ãã®ã¢ãããŒãã®æ¬ ç¹ã¯ãããã©ãŒãã³ã¹ ã¬ãã«ãç°ãªããããäžè²«ããã·ã¹ãã ããã©ãŒãã³ã¹ãéèŠãªãšã³ã¿ãŒãã©ã€ãº ã¢ããªã±ãŒã·ã§ã³ã«ã¯ Drive Managed SMR ãé©ããªãããšã§ãã ãã ãããã®ãããªãã©ã€ãã¯ãããã¯ã°ã©ãŠã³ãã§ã®ããŒã¿ã®æé©åã«ååãªæéããããã·ããªãªã§ã¯è¯å¥œã«ããã©ãŒãã³ã¹ãçºæ®ããŸãã ããšãã°ãDMMSR ãã©ã€ã
- ãã¹ã管çã® SMR
ãã¹ã管ç SMR ã¯ããšã³ã¿ãŒãã©ã€ãºç°å¢ã§äœ¿çšããå Žåã«æšå¥šãããã¿ã€ã«é²ç»å®è£ ã§ãã ãã®å Žåããã¹ã ã·ã¹ãã èªäœãããŒã¿ ãããŒãšèªã¿åã/æžã蟌ã¿æäœã®ç®¡çãæ åœããŸãããããã®ç®çã«ã¯ãINCITS ã«ãã£ãŠéçºããã ATA (ãŸãŒã³ ããã€ã¹ ATA ã³ãã³ã ã»ãããZAC) ããã³ SCSI (ãŸãŒã³ ããã㯠ã³ãã³ããZBC) ã€ã³ã¿ãŒãã§ã€ã¹æ¡åŒµã䜿çšãããŸãã T10 ããã³ T13 å§å¡äŒã
HMSMR ã䜿çšããå Žåããã©ã€ãã®å©çšå¯èœãªã¹ãã¬ãŒãžå®¹éå šäœã XNUMX çš®é¡ã®ãŸãŒã³ã«åå²ãããŸããã¡ã¿ããŒã¿ãšã©ã³ãã èšé² (æ¬è³ªçã«ãã£ãã·ã¥ã®åœ¹å²ãæãã) ã®ä¿åã«äœ¿çšãããåŸæ¥ã®ãŸãŒã³ãšãå¿ èŠãªã·ãŒã±ã³ã·ã£ã«æžã蟌ã¿ãŸãŒã³ã§ããããŒããã©ã€ãã®ç·å®¹éã®å€§éšåã¯ãããŒã¿ãå³å¯ã«é 次ã«æžã蟌ãŸããå Žæã§ãã ã¢ãŠããªããªãŒããŒã®ããŒã¿ã¯ãã£ãã·ã¥é åã«ä¿åãããããããé©åãªã·ãŒã±ã³ã·ã£ã«æžã蟌ã¿é åã«è»¢éã§ããŸãã ããã«ããããã¹ãŠã®ç©çã»ã¯ã¿ãŒãååŸæ¹åã«é 次æžã蟌ãŸãã埪ç°è»¢éåŸã«ã®ã¿åæžã蟌ã¿ãããããšãä¿èšŒãããå®å®ããäºæž¬å¯èœãªã·ã¹ãã ããã©ãŒãã³ã¹ãåŸãããŸãã åæã«ãHMSMR ãã©ã€ãã¯ãæšæº PMR ã䜿çšãããã©ã€ããšåãæ¹æ³ã§ã©ã³ãã èªã¿åãã³ãã³ãããµããŒãããŸãã
ãã¹ã管ç SMR ã¯ãšã³ã¿ãŒãã©ã€ãºã¯ã©ã¹ã®ããŒããã©ã€ãã«å®è£
ãããŠããŸã
ãã®è£œåã©ã€ã³ã«ã¯ããã€ããŒã¹ã±ãŒã« ããŒã¿ ã»ã³ã¿ãŒã§ã®äœ¿çšåãã«èšèšããã倧容é SATA ããã³ SAS ãã©ã€ããå«ãŸããŸãã ãã¹ã管ç SMR ã®ãµããŒãã«ããããã®ãããªããŒã ãã©ã€ãã®é©çšç¯å²ã倧å¹
ã«æ¡å€§ããŸããããã¯ã¢ãã ã·ã¹ãã ã«å ããŠãã¯ã©ãŠã ã¹ãã¬ãŒãžãCDNããŸãã¯ã¹ããªãŒãã³ã° ãã©ãããã©ãŒã ã«ãæé©ã§ãã ããŒã ãã©ã€ãã®å€§å®¹éã«ãããæå°éã®ã¢ããã°ã¬ãŒã ã³ã¹ã㧠(åãã©ãã¯å
ã§) ã¹ãã¬ãŒãžå¯åºŠã倧å¹
ã«åäžãããããšãã§ããäœæ¶è²»é»å (ä¿åæ
å ± 0,29 ãã©ãã€ãããã 5 ã¯ãã以äž) ãšç±æŸæ£ (å¹³å XNUMX °C äœäž) ãå®çŸããŸããã¢ããã°ãã) - ããŒã¿ã»ã³ã¿ãŒã®ã¡ã³ããã³ã¹ã«ãããéçšã³ã¹ããããã«åæžããŸãã
HMSMR ã®å¯äžã®æ¬ ç¹ã¯ãå®è£
ãæ¯èŒçè€éã§ããããšã§ãã åé¡ã¯ãçŸåšããã®ãããªãã©ã€ãããã®ãŸãŸäœ¿çšã§ãããªãã¬ãŒãã£ã³ã° ã·ã¹ãã ãã¢ããªã±ãŒã·ã§ã³ã¯ååšããªããšããããšã§ãããã®ãããIT ã€ã³ãã©ã¹ãã©ã¯ãã£ã«é©å¿ãããã«ã¯ããœãããŠã§ã¢ ã¹ã¿ãã¯ã«å¯Ÿãã倧å¹
ãªå€æŽãå¿
èŠã«ãªããŸãã ãŸã第äžã«ãããã¯ãã¡ãã OS èªäœã«é¢ãããã®ã§ããããã«ãã³ã¢ããã³ãã«ããœã±ããã®ãµãŒããŒã䜿çšããçŸä»£ã®ããŒã¿ã»ã³ã¿ãŒã®ç¶æ³ã§ã¯ãããã¯ããªãç°¡åãªäœæ¥ã§ã¯ãããŸããã å°éãªãœãŒã¹ã§ãã¹ã管ç SMR ãµããŒããå®è£
ããããã®ãªãã·ã§ã³ã®è©³çŽ°ã確èªã§ããŸãã
- ãã¹ã ã¢ãŠã§ã¢ SMR (ãã¹ã ã¢ãŠã§ã¢ SMR)
Host Aware SMR 察å¿ããã€ã¹ã¯ããã©ã€ã管ç SMR ã®å©äŸ¿æ§ãšæè»æ§ãšããã¹ã管ç SMR ã®é«éæžã蟌ã¿é床ãçµã¿åãããŠããŸãã ãããã®ãã©ã€ãã¯ã¬ã¬ã·ãŒ ã¹ãã¬ãŒãž ã·ã¹ãã ãšäžäœäºææ§ãããããã¹ãããã®çŽæ¥å¶åŸ¡ãªãã§åäœã§ããŸããããã®å ŽåãDMMSR ãã©ã€ããšåæ§ã«ããã©ãŒãã³ã¹ãäºæž¬ã§ããªããªããŸãã
ãã¹ã管ç SMR ãšåæ§ã«ããã¹ãèªè SMR ã¯ãã©ã³ãã æžã蟌ã¿çšã®åŸæ¥ã®ãŸãŒã³ãšã·ãŒã±ã³ã·ã£ã«æžã蟌ã¿åªå ãŸãŒã³ã® XNUMX çš®é¡ã®ãŸãŒã³ã䜿çšããŸãã åŸè ã¯ãäžèšã®é次æžã蟌ã¿å¿ é ãŸãŒã³ãšã¯å¯Ÿç §çã«ãããŒã¿ã®èšé²ãé çªã©ããã«è¡ããå§ãããšãèªåçã«éåžžã®ãŸãŒã³ã®ã«ããŽãªã«æ ŒäžããããŸãã
SMR ã®ãã¹ãèªèå®è£
ã¯ãäžæŽåãªæžã蟌ã¿ããå埩ããããã®å
éšã¡ã«ããºã ãæäŸããŸãã é äžåã®ããŒã¿ã¯ãã£ãã·ã¥é åã«æžã蟌ãŸããå¿
èŠãªãããã¯ããã¹ãŠåä¿¡ãããåŸããã£ã¹ã¯ã¯ããããæ
å ±ãã·ãŒã±ã³ã·ã£ã«æžã蟌ã¿é åã«è»¢éã§ããŸãã ãã£ã¹ã¯ã¯ãéæ¥ããŒãã«ã䜿çšããŠãã¢ãŠããªããªãŒããŒæžã蟌ã¿ãšããã¯ã°ã©ãŠã³ãã§ã®æé©åã管çããŸãã ãã ãããšã³ã¿ãŒãã©ã€ãº ã¢ããªã±ãŒã·ã§ã³ãäºæž¬å¯èœã§æé©åãããããã©ãŒãã³ã¹ãå¿
èŠãšããå Žåãããã¯ãã¹ãããã¹ãŠã®ããŒã¿ ãããŒãšèšé²ãŸãŒã³ãå®å
šã«å¶åŸ¡ããå Žåã«ã®ã¿éæã§ããŸãã
åºæïŒ habr.com