ã¾ããã HDDãSSDã¯ã·ã¹ãã ã®ä¸ã§ãããã«ããã¯ã¨ãªãä¸çªãã¼ã¿ã®è»¢éé度ãé ãè¨æ¶åªä½ã ã ãªãã¬ã¼ãã£ã³ã°ã»ã·ã¹ãã ã«ã¯è¨æ¶åªä½ã«ããé 延ãæ¸ãããããã£ãã·ã¥ãå©ç¨ãããªã© I/Oã¢ã¯ã»ã¹ãæå°éã«çãã工夫ãæ½ããã¦ããããããªä¸ã§ãI/Oã¹ã±ã¸ã¥ã¼ã©ã¯I/Oãªã¯ã¨ã¹ãã®å¦çé ãå ¥ãæ¿ããããªã¯ã¨ã¹ããä¸ã¤ã«ã¾ã¨ããããããã¨ã«ããå¿çé度ãã¹ã«ã¼ããããåä¸ãããæ©è½ã ããã£ã¹ã¯ã»ã¹ã±ã¸ã¥ã¼ãªã³ã°ã¨ãå¼ã°ãããã¨ãããã æ°å¹´åã¾ã§ã¯Linuxã«ã¼ãã«ã¯ cfq noop deadline ã¨è¨ã£ãI/Oã¹ã±ã¸ã¥ã¼ã©ãæè¼ãã¦ããããæ¨ä»ã®ã¹ã±ã¸ã¥ã¼ã©ã¯ã ãã¶å¤ãã£ã¦ããããã ã Linuxã«ã¼ãã« ver 3.13 ããCPUã®å¤ã³ã¢åãSSDãPCIeãªã©ã®é«éãªè¨æ¶åªä½ã®æ®åã«å¯¾å¿ããããã«æ§æ¥ã®åä¸ãã¥ã¼å¦çãããã«ããã¥ã¼å¦çããã Blk-mqï¼Multi-Qu
5æã«Raspberry Pi 4ã®USBãã¹ã¹ãã¬ã¼ã¸ããã¤ã¹ï¼ä»¥ä¸USB MSDï¼ãã¼ãã®ãã¼ã¿çãåºã話ãæ¸ãã¾ããã akkiesoft.hatenablog.jp 6æã«ã¯eepromãstableæ±ãã«å¤ãããRaspberry Pi OSï¼Raspbianï¼ã®ãã¡ã¼ã ã¦ã§ã¢å¾ ã¡ã«ãªã£ã¦ããã®ã§ããããã¤ã®éã«ããã¡ã¼ã ã¦ã§ã¢ãaptã§éã£ã¦ããããã«ãªã£ã¦ãã¾ããããã£ã¦ãrpi-updateãããªãã¦ãUSB MSDãã¼ããã§ããããã«ãªãã¾ããã ãã ããRaspberry Pi OSã®ãã£ã¹ã¯ã¤ã¡ã¼ã¸ãæ´æ°ããã¦ããªããããUSB MSDã«æ¸ãè¾¼ãã Raspberry Pi OSãææ°ã«ããã«ã¯ãRaspberry Pi 3B+ããMicroSDã«ã¼ãã«bootcode.binã ãæ¸ãã¦Raspberry Piã«å·®ãè¾¼ãã ç°å¢ã使ã£ã¦USB MSDãã¼ããã¦ãapt u
ããã¾ã§ã®PG-Stromã®æ§è½æ¸¬å®ã¨ããã°ãèªç¤¾ä¿ææ©æã®é¢ä¿ããããåºæ¬çã«ã¯1Uã©ãã¯ãµã¼ãã«1CPUã1GPUã3ï½4å°ã®NVME-SSDãè¼ããæ§æã®ãã¼ãã¦ã§ã¢ãä¸å¿ã ã£ãã*1 ãã ã½ããã¦ã§ã¢çã«ã¯ãã«ãGPUãNVME-SSDã®ã¹ãã©ã¤ãã³ã°ã«å¯¾å¿ãã¦ãããè½åçã«ã©ãã¾ã§ä¼¸ã°ããã®ãã¨ããã®ã¯æ°ã«ãªãã¨ããã§ããã ããã§ãæ¹ã ã«æãå°½ããã¦ã次ã®ãããªãã³ããã¼ã¯ç°å¢ãæ´åãã¦ã¿ãã ï¼æ©æãã貸ãé ãããã¼ããã¼æ§ã«ã¯æè¬ææ¿é¨ãããã§ããï¼ 4Uãµã¼ãã®SYS-4029GP-TRTã¨ããã¢ãã«ã¯ãGPUãããããä¹ã£ããããã«PCIeã¹ã¤ãããç¨ãã¦PCIeã¹ããããåå²ãã¦ãããã¡ããã©ãPCIeã¹ã¤ãã1åããã2åã®PCIe x16ã¹ããããç¨æããã¦ãããåãPCIeã¹ã¤ããé ä¸ã®ããã¤ã¹å士ã§ããã°ãå®å ¨ã«CPUããã¤ãã¹ãã¦Peer-to-Peerã®ã
æ¥æ¬ãã¤ã¯ãã½ããã¯10æ17æ¥ããã¼ãã¼ãçè±å¼ã®2in1 PCãSurface Pro Xãã2020å¹´1æã«çºå£²ãããã¨ãçºè¡¨ãããæ³å®è²©å£²ä¾¡æ ¼ãªã©ã®è©³ç´°ã¯ã決ã¾ã次第Surfaceå ¬å¼ãµã¤ãã§å ¬éããã âæ°ããªãSurface Proãç»å ´ãIntelãã¼ã¹ã®ã7ãã¨Armãã¼ã¹ã®ãXã åæ¥ãå社ãéå¬ããæ°è£½åä½é¨ä¼ã«ããã¦ãSurface Pro Xã®å®æ©ãå±ç¤ºããã¦ããã®ã§ãæ©éè¦ã¦ãããã çé¡ç¸ã«ãªã£ãSurface Surface Pro Xã¯ãQualcommã¨å ±åéçºããArmã¢ã¼ããã¯ãã£ãã¼ã¹ã®ç¬èªããã»ããµãMicrosoft SQ1ããæè¼ãããã¨ãæ大ã®ç¹å¾´ã4Kï¼3840Ã2160ãã¯ã»ã«ï¼æ åã®å¤é¨åæåºåãé«éãªã¹ãã¬ã¼ã¸ï¼SSDï¼ã®æ¥ç¶ãªã©ãâPCã¨ãã¦âããå¿«é©ã«å©ç¨ã§ãããããªã«ã¹ã¿ãã¤ãºãæ½ããã¦ããã ä»åå±ç¤ºãããå®æ©ã§ã¯ã¢ããªã®èµ·å
SSDã®ä¾¡æ ¼ã¯é«æ¢ã¾ãã©ãããå¤ä¸ãããã¦ãã2017å¹´ãçµã¦ã2018å¹´ã¯å®¹éå価ãä¸è½ããä¸æ¹ã¨ãããã¦ã¼ã¶ã¼ã«ã¨ã£ã¦ã¯ããããã1å¹´ã«ãªãã¾ããã3D NANDæè¡ã§ä¸»è¦ã¡ã¼ã«ã¼éã§ç«¶äºãèµ·ããTLC NANDã«ç¶ãã¦QLC NAND製åãç»å ´ãããªã©ãå å®ããæè¡é²åãè¦ãã2018å¹´ã®SSDååãAnandTechãé常ã«ããããããã¾ã¨ãã¦ãã¾ãã AnandTech Year in Review 2018: SSDs https://www.anandtech.com/show/13752/anandtech-year-in-review-2018-ssds â3D NAND 2018å¹´ã¯ä¸»è¦ãªNANDãã©ãã·ã¥ã¡ã¼ã«ã¼ãã¹ã¦ã64層以ä¸ã®3D NANDã®éç£ã1å¹´éãã¦è¡ã£ãåãã¦ã®å¹´ã«ãªãã¾ããã2017å¹´ã¾ã§ã¯NANDæ¥çæ大æã®Samsungã®ç¬å£å ´ã ã£ã3D NAN
ç±³ã¤ã³ãã«ã¯ããã¤ã¯ãã³ã¨å ±åéçºããæ°ããä¸æ®çºæ§ã¡ã¢ãªã3D XPointããæ¡ç¨ãããµã¼ãåãSSDãOptane SSD DC P4800X Seriesããçºè¡¨ãã¾ããï¼åç»ãªã©ãè¦ããããOptaneã¯ãªããã¤ã³ã¨çºé³ããããã§ãï¼ã å¾æ¥ã®SSDã«ã¯ä¸æ®çºæ§ã¡ã¢ãªã¨ãã¦NANDåãã©ãã·ã¥ã¡ã¢ãªã使ããã¦ãããã¨ãä¸è¬çã§ãããä»åã®Optane SSD DC P4800X Seriesã«æ¡ç¨ããã3D XPointã¯ãã¢ã¯ã»ã¹é度ã«ããã¦NANDåãã©ãã·ã¥ã¡ã¢ãªãããæ大ã§1000åé«éã§ããããèä¹ æ§ãæ大1000åããã¨çºè¡¨ããã¦ãã¾ãã ãã®ãã3D XPointã¯ãã¹ãã¬ã¼ã¸ã¯ã©ã¹ã¡ã¢ãªãã¨å¼ã°ãããã¡ã¤ã³ã¡ã¢ãªã§ãããªããã¹ãã¬ã¼ã¸ã®ããã«å¤§å®¹éãã¤ä¸æ®çºã§ããã¨ããæ°ããã¡ã¢ãªç¨éã«ä½¿ããããã¨ãæå¾ ããã¦ãã¾ãã ã¹ãã¬ã¼ã¸ã¯ã©ã¹ã¡ã¢ãªãå®ç¨åãããã¨ãã¡ã¤
ããã¯è²·ããããå¾ãªãã¨ãå³è³¼å ¥ã Amazonããããå±ããã®ã§ãããããã¨éå°ãããã±ã¼ã¸ã¯ãããªæãã ãµã¤ãºã¯æ大ã®480GBã«ãã¾ããã960GBã¯å¾æ¥çºå£²ã®ããã§ãã éå°ããã¨ãä¸å¼æã£ã¦ãã¾ããéç®±ã®ããã«æãéãªã£ã¦ãã¾ããã å 容ç©ä¸å¼ãä¸æãããã®ã§ãä½ããè²·ã足ãå¿ è¦ã¯ããã¾ããã åãå¤ããSSDãå¤ä»ããã©ã¤ãåã§ããã±ã¼ã¹ãä»å±ã éå±è£½ã®ãã³ã¤ãªããæ触ãä¼ããã¾ããä»å±åã®åºæ¥æ ããããªãã§ããããåä½ã§å£²ã£ã¦ãããããããªãã§ããããã ã±ã¼ã¹ã®ã±ã¼ã¹ãä»å±ããã©ã³ã»ã³ãããã¯ã¦ã¼ã¶ã¼å¿çãåãã£ã¦ãã£ãããâ¦ãæ®å½±ã®ãããLEDé¨åãé²åºããã¦ã¾ããããã£ã½ãåã¾ãã¾ããã ã¾ãã¯ãJetDriveãå¤ä»ãã±ã¼ã¹ã«å ¥ãã¦ãMacBook Airã«USBã§ç¹ãã¾ãããã®ãã©ã¤ããæ¥ç¶ä¸ã¯ç·è²ã«ç¹æ» ãããã¦ã³ãå¾ã¯éè²ã§ç¹ç¯ãã¾ããè¸ãç´°ããã ãã¦ãop
DigitalOceanã¨ããã°SSD VPSãªã®ã«1æéå½ããç´1åå¼±ã§ä½¿ããæ ¼å®VPSã¨ãã¦æåã§ãã æåãªç´¹ä»è¨äºã¯ãã¡ãã 徳丸浩ã®éè¨å¸³: 試é¨ç°å¢ç¨VPSã¨ãã¦1æé1åãã使ããDigitalOceanãå®ãã¦ä¾¿å© Vagrantã¨SSDãªVPS(Digital Ocean)ã§1æé1åã®ä½¿ãæ¨ã¦é«éãµã¼ãç°å¢ãæ§ç¯ãã - Glide Note DigitalOceanã®ãã¨ã¯rebuildfm#2ã§ç¥ã£ã¦èå³æã¡ã¾ããã Rebuild: 2: Rails, Redis, VPS (Kenn Ejima) ããã¾ã§VPSã¨ããã°ãããVPSãã¡ã¸ã£ã¼ã ã¨æã£ã¦ã¾ãããã 調ã¹ã¦ã¿ãã¨DigitalOceanããªãã¨ãè¯ãæ°ã§ãã ä»åã¯DigitalOceanã®ç»é²ããç°¡åãªä½¿ãæ¹ã説æãã¾ãã ãã¡ãã®ãªã³ã¯ããç»é²ãã¦ããã ãã¨ãç§ã«å°ãããã¯ãããããã§ãã Di
ã©ã³ãã³ã°
ã©ã³ãã³ã°
ã©ã³ãã³ã°
ãªãªã¼ã¹ãé害æ å ±ãªã©ã®ãµã¼ãã¹ã®ãç¥ãã
ææ°ã®äººæ°ã¨ã³ããªã¼ã®é ä¿¡
å¦çãå®è¡ä¸ã§ã
j次ã®ããã¯ãã¼ã¯
kåã®ããã¯ãã¼ã¯
lãã¨ã§èªã
eã³ã¡ã³ãä¸è¦§ãéã
oãã¼ã¸ãéã
{{#tags}}- {{label}}
{{/tags}}