
Linuxã§SSDã®Trimã³ãã³ããæå¹ã«ããæ¹æ³ã«ã¤ãã¦æ°ã«ãªã£ãã®ã§ã¡ã¢ã ã¤ãã§ã«ã¹ã±ã¸ã¥ã¼ã©ãå¤æ´ãã¦ãã¥ã¼ãã³ã°ããæ¹æ³ãè¨è¼ãã¦ããã¾ãã 説æã®å¯¾è±¡ã¯CentOS 6.xã§ãã Trimã³ãã³ãã®Linuxå´ãµãã¼ãã¯Kernel 2.6.33ããã§ãCentOSã®å ´å6ç³»ããã¨ãªãã¾ãã (ã«ã¼ãã«ã¯2.6.32ã§ãããããã¯ãã¼ããæãããæå¹ã¨ãªã£ã¦ããã¨ã®äº) åããã¡ã¤ã«ã·ã¹ãã ã¨ãã¦ext4ãå©ç¨ã®å ´åã®ã¿å©ç¨å¯è½ã¨ãªãã¾ãã ã¾ãããã©ã¤ããSSDã¨ãã¦èªèããã¦ãããã確èªãã¾ãã $ cat /sys/block/sda/queue/rotational 0å¤ã®æå³ã¯ä¸è¨ã®éãã ç¶æ å¤ SSDã¨ãã¦èªè 0 HDDã¨ãã¦èªè 1 0ã®å ´åãSSDã¨ãã¦èªèããã¦ããã å°ãRAIDã«ã¼ãçµç±ã§SSDãæ¥ç¶ããå ´åãSSDãç´æ¥æ±ããªãã®ã§Trimã¯ä½¿ã
2013å¹´ããTech Reportãç¶ç¶ãã¦ãããSSDèä¹ è©¦é¨ãã¯ãSSD主è¦6ã¢ãã«ã«ç¹å¥ãªããã°ã©ã ã使ã£ã¦å°å¸¸ã§ã¯ãªãéã®ãã¼ã¿ãæ¸ãè¾¼ã¿ã¾ãã£ã¦åèµ·ä¸è½ã¾ã§è¿½ãè¾¼ãã¨ãããã®ã§ãèä¹ æ§ã«ä¸å®ãæãããã¡ãªSSDã®ä¿¡é ¼æ§ãå¤æããã®ã«å¤§ãã«å½¹ç«ã¤ãã¼ã¿ã¨ãã¦æ³¨ç®ãéãã¦ãã¾ããããã¦ãæå¾ã¾ã§çãæ®ã£ãã¢ãã«ãã¤ãã«æ¯ã®æ ¹ãæ¢ãããã1å¹´åã«ããã£ã¦ç¶ããããSSDèä¹ è©¦é¨ãå®å ¨ã«çµäºãããããSSDã®ä¿¡é ¼æ§ã«é¢ãããããã¹ãäºå®ãæããã«ãªã£ã¦ãã¾ãã The SSD Endurance Experiment: They're all dead - The Tech Report - Page 1 http://techreport.com/review/27909/the-ssd-endurance-experiment-theyre-all-dead âããã¾ã§ã®ãã¹ãçµé
ãã¼ããã£ã¹ã¯ã«æ¯ã¹ã¦æ°åã®èªã¿æ¸ãé度ãæã¡ãä½æã§ããã¬ãã«ã§ã®é度ã¢ãããæå¾ ã§ããã½ãªããã¹ãã¼ããã©ã¤ã(SSD)ã¯ã容éå価ã®ä¸è½ã«ã¨ããªã£ã¦ãã£ã¨ããéã«PCã¹ãã¬ã¼ã¸ã®ä¸»å½¹ã«èºãåºã¾ãããããããSSDã«ã¯æ¸ãè¾¼ã¿åæ°ã«ä¸éãããããã寿å½ãã¨ããç¹ã§å¤§ããªæ¬ ç¹ãæ±ãã¦ããã¨è¨ããã¦ãããå°å ¥ããããããã¡ãªäººãå¤ãã¨ããã¦ãã¾ãããããªèª°ããæ°ã«ãªãSSDã®å¯¿å½ã«ã¤ãã¦ãIntelãSamsungãªã©ã®SSDã使ã£ãé·æéã®æ¸ãè¾¼ã¿èä¹ ãã¹ãã®çµæãå ¬è¡¨ããã¦ãã¾ãã The SSD Endurance Experiment: Casualties on the way to a petabyte - The Tech Report http://techreport.com/review/26523/the-ssd-endurance-experiment-casual
[å®é¨]SSDãããã©ã°ããã¨éããªãã®ãã®ç¶ãã§ããä»ä½¿ã£ã¦ããSSDã¯ãIntelã®X-25Mã¨ããSSDã§ã2009å¹´8æã«è³¼å ¥ãããã®ã§ãããã§ã«4å¹´å以ä¸ãWindowsã®èµ·åç¨ãã©ã¤ãã¨ãã¦ä½¿ãç¶ãã¦ãã¾ãã æåã¯ãã®SSDã«Windows7ãã¤ã³ã¹ãã¼ã«ãããã®å¾Windows8ãã¯ãªã¼ã³ã¤ã³ã¹ãã¼ã«ããç¾å¨ã¯Windows8.1ã«ã¢ãããã¼ããã¦ä½¿ã£ã¦ãã¾ãããã£ã¨èµ·åç¨ãã©ã¤ãã¨ãã¦ä½¿ãç¶ãã¦ãé»æºæå ¥åæ°ã¯æ°ååã使ç¨æéã¯5000æéã軽ãè¶ ãã¦ãã¾ãã 2009å¹´ã«SSDãå°å ¥ããåã¯ãSSDã«ã¤ãã¦ãããªãã¨ãè¨ããã¦ãã¾ããããSSDã¯HDDã¨éã£ã¦æ¸ãè¾¼ã¿åæ°ã«éçããããã¨ãæ¸ãè¾¼ã¿åæ°ãæ¸ããããã«ãã¼ã¸ã³ã°ãã¡ã¤ã«ããã³ãã©ãªãã¡ã¤ã«ã¯å¥ãã©ã¤ãã«ç§»ããæ¹ãè¯ãã¨ããSSDã¯å£ããããããã¾ã ãã¡ã ã¨ããããããè¨ããã¦ãã¾ããã ãã¦ã4å¹´å以ä¸ä½¿ã£
å¹´ã«ä½åº¦ãçµé¨ãã¦ãã¾ãï¼æå³ããªããã½ã³ã³ã®é»æºç¬æï¼ä»åã¯ï¼ãããªé»æºé®æ㨠SSD ã®é¢ä¿ã調ã¹ãè«æããç´¹ä»ï¼ Understanding the Robustness of SSDs under Power Fault [ãã£ãã·ã¥] http://www.cse.ohio-state.edu/~zhengm/papers/2013_FAST_PowerFaultSSD.pdf ç´æçã«ã¯ï¼å¯åé¨ãç¡ãåï¼SSD 㯠HDD ã«æ¯ã¹ã¦é»æºé®æã«å¼·ãæ°ããã¾ãï¼ãããï¼ãã®è«æã§ã¯å ¨ãéã®çµæãå¾ããã¦ãã¾ãï¼ ãã®è¦å ã¯ï¼Flash Translation Layer(FTL) ã¨å¼ã°ãããã¡ã¼ã ã¦ã§ã¢ï¼FTL 㯠è«çã¢ãã¬ã¹ã¨ç©çã¢ãã¬ã¹ã®ãããã³ã°ãé©åã«ç®¡çãããã¨ã§ï¼Flash ã¡ã¢ãªã¨ HDD ã®ããã¤ã¹ç¹æ§ã®å·®ãé å¿ããã¨ã¨ãã«é«éåãå®ç¾å®ç¾ãã¾ãï¼ ãã®ä¸æ¹ï¼ã
Crucial M500 ã® write endurance ã 75TB ããç¡ãã¨ããã®ã話é¡ã«ãªã£ã¦ãã¦ãåãã 75TB ã§ãã m4 ãããã¨èå¾ ãã¦ãããã¹ãã¯ã©ããªã£ãã®ãæ°ã«ãªã£ã¦èª¿ã¹ã¦è¦ãã¨ãããé¢ç½ãçµæã観測ãããã¨ãã話ã ç³æ©ãå©ãã¦å£ãé害æã®æåãè¦ãã¹ããèªç¤¾å ¨ãµã¼ãã¹ã®ã¢ã¯ã»ã¹ãã°ãåãæ¢ãã syslog ãµã¼ããã¨ãããã©ãè¦ã¦ãæ¸ãè¾¼ã¿ä¸å¿ã§ SSD ã«ãããããªããã¹ããããã¦åããã¦ãããå ·ä½çã«ã¯ä¸è¨ã®ãããªããªã®ãã¹ãã§ããã iostat ã®ä¸è¡ç®ãªã®ã§ uptime æ°ç¾æ¥ã«ãããå¹³åå¤ã§ãããã¨ã«æ³¨æã [root@touge ~]# iostat -k -x -d sda | sed -n '3,4p' Device: rrqm/s wrqm/s r/s w/s rkB/s wkB/s avgrq-sz avgqu-sz await
2012å¹´å¬çï¼ã²ã¼ãã¼ã®ããã®SSDè³¼å ¥ã¬ã¤ããæè¡è§£èª¬ã交ãã¤ã¤ï¼å ¨9ã¢ãã«ã横並ã³ã§æ¯è¼ãã ã©ã¤ã¿ã¼ï¼ç±³ç° è¡ ã«ã¡ã©ãã³ï¼ç°äºä¸ç´å¹³ ä»åï¼SSDã®ç¢ºä¿ã«ããã£ã¦ã¯ï¼ãã½ã³ã³ã·ã§ãã ã¢ã¼ã¯ã®ååãå¾ã å ¥æãã9å°ã®SSDï¼â»è©³ç´°ã¯å¾æ®µã§ï¼ã9å°ä¸6å°ããã½ã³ã³ã·ã§ãã ã¢ã¼ã¯ããåãããã®ï¼3å°ã4Gamerã§ç¬èªã«ç¨æãããã®ã§ï¼ããããï¼åºé 販売ããã¦ããæ°åã§ãã SSDã¯ãã¾ï¼PCã²ã¼ãã¼ã«ã¨ã£ã¦ï¼ã°ã©ãã£ãã¯ã¹ã«ã¼ãã¨ä¸¦ãã§ã欲ãããPCãã¼ãã®1ã¤ã ãããWindowsã®èµ·åæéãç®ã«è¦ãã¦ç縮ãããã ãã§ãªãï¼ã²ã¼ã ãã¼ã¿ãªã©ï¼ãã¡ã¤ã«ã®èªã¿åºãæéãçããªãã¨ããï¼âæè³å¹æâã®é常ã«é«ãï¼æ°å°ãªããã¼ãã®1ã¤ã ããã ã æ°å¹´åã«ç¬¬1ä¸ä»£ãç»å ´ãã¦ãããã°ããã¯ï¼å®¹éãããã®å価ãé«ãï¼å¤§å®¹éã¢ãã«ãè³¼å ¥ããã«ã¯ããªãã®è¦æãå¿ è¦ã ã£ããï¼2012å¹´ã¯240ã
å®éã«å£ããã¾ã§SSDã«æ¸ãè¾¼ã¿ç¶ãã¦ãSSDã®éçã調ã¹ã¦ã¿ããã ä»æ§ãSSDèä¹ ãã¹ãã®ããã°ã©ã ã«ã¤ã㦠第1åãMLCã®æ¸ãè¾¼ã¿åæ°ã¯ã©ãããããªã®ãããã¹ãçµæ 第2åã空ã容éã¯ã¦ã§ã¢ã¬ããªã³ã°ã«å½±é¿ããã®ãããã¹ãçµæ 第3åãWin7ã®Trimã³ãã³ãã¯å¯¿å½ã延ã°ãã®ããææ°è¨äº 第4åãæ±è製SSDã¯å£ããåã«ãªã¼ããªã³ãªã¼ã«ãªãã®ãããã¹ãçµæ 第4åãæ±è製SSDã¯å£ããåã«ãªã¼ããªã³ãªã¼ã«ãªãã®ã 2010.4.7 æ±è製SSDã¯ç©ççã«å£ããã®ãé²ãã§ãããããããæ¸ãè¾¼ã¿ç¶ãããã¨ã§å¾ã ã«äºåé åã失ããã¦ãããããããSSDã®å®å®¹éã«å½±é¿ãä¸ããåã«ãªã¼ããªã³ãªã¼ã«ãã¦ï¼ä»¥éã®æ¸ãè¾¼ã¿ãç¦æ¢ãã¦ï¼ããã¡ã¤ã«ãç ´å£ãããã®ãé²ãä»çµã¿ã ã å³å´2åãäºåé åããããããããã¨ãã£ã¦ãSSDã®å®å®¹éãè¶ ãã¦ä¿åã§ããããã§ã¯ãªããã¦ã§ã¢ã¬ããªã³
ãªã¬ã¼ã·ã§ãã«ãã¼ã¿ãã¼ã¹ãå©ç¨ããéã«ã¯ãé«ãæ§è½ãå¼ãåºãããã«ç©çè¨è¨ãããã¹ãã¼ãã工夫ãããã©ã¡ã¼ã¿ã®ãã¥ã¼ãã³ã°ãè¡ããã¨ãã¤ãã«è¡ããã¦ãã¾ããã æ§è½ã®ããã«ããã¯ã¯ããããHDDã«ãããããã«ãã®ããã«ããã¯ãåé¿ãããããã¥ã¼ãã³ã°ã®ãã¤ã³ãã§ãããæè¿ã§ã¯æ§è½åä¸ã®ããã®æ¦å¨ã¨ãã¦ãHDDããããã£ã¨ã¢ã¯ã»ã¹æ§è½ã®é«ãSSDã注ç®ããã¦ãã¾ããSSDã¯HDDã¨ç½®ãæããã ãã§ãã¢ããªã±ã¼ã·ã§ã³ã«ã¾ã£ããæãå ããã«æ§è½åä¸ãå¯è½ã«ããæ段ã¨ãã¦é常ã«é åçã§ãã HDDã®ä»£ããã«SSDãå©ç¨ãããããªã¬ã¼ã·ã§ãã«ãã¼ã¿ãã¼ã¹ã®æ§è½ã¯ã©ãã ãåä¸ããã®ã§ããããï¼ ãªã©ã¯ã«ã¨å¯å£«éãå ±åæ¤è¨¼ãè¡ãããã®çµæããã¯ã¤ããã¼ãã¼ã¨ãã¦å é±çºè¡¨ãã¾ããï¼åèãæ¥æ¬ãªã©ã¯ã«ã¨å¯å£«é ãã©ãã·ã¥æè¡æ´»ç¨ã«ãããã¼ã¿ãã¼ã¹é«éåãå ±åæ¤è¨¼ãï¼ã ãã¯ã¤ããã¼ãã¼ã§ã¯ãHDDã®ä»£ãã
ããããªã使ç¨ãã¦ãããã¡ã«è¬ã®é度ä½ä¸ãä¿¡é ¼æ§ãèä¹ æ§ã å®ç¸¾ãã³ã¹ãããã©ã¼ãã³ã¹ãæ¥æ¿ãªä¾¡æ ¼ã®ä¸è½ãªã©ãªã©ã ä»è²·ã£ã¦ãããããããå°ãå¾ ã¦ã°ããã£ããã¨å¾æããã ãã ãã ã¡ãã£ã¨å¾ ã¦ã°2åã®æ§è½ã1/2ã®ä¾¡æ ¼ã§æã«å ¥ãããããããããªãã ç解ã§ããªãã¦ãè¯ãããã¨ã«ããä»ã¯è²·ããªã ãåãã®ãã¨ãå¿é ã ããè¨ã£ã¦ãã£ã¦ããã ã ãã®ã¹ã¬ã¯å¸¸æageé²è¡ã§åå¿è ã«è¦ã¤ããããããã«ãã¾ãããã
å ¬ç§°1,000MB/sããããè¶ é«éã®PCI Express-SSDãPhotoFastãG-Monster-PROMISE PCIeããçºå£²ãããã å®å£²ä¾¡æ ¼ã¯128GBã159,800åã256GBã198,000åã512GBã298,000åã1TBã448,000åãªã©ãå¤ãã®ã·ã§ããã§ã¯ãå注æ±ããã¨ããã¦ãããããã¹ãã©ç§èåæ¬åºãã¯ã¬ããªã¼1å·åºã§ã¯ããå°éãªããåºé å¨åº«ãããã¨ããã ï¼ä»¥ä¸ã解説æºåä¸ï¼ â¡G-Monster-PROMISE PCIe SSDï¼PhotoFastï¼ http://www.photofast.co.jp/promise.html â¡é¢é£è¨äº ã2009å¹´4æ25æ¥ãPCI ExpressåSSDã®äºä¾¡ãåºããOCZ製 http://www.watch.impress.co.jp/akiba/hotline/200904
æ±èãâ22å¹´ã®æè¡âã注ãã ãdynabook SS RX1ããçã¿è½ã¨ããã®ã¯2007å¹´ã®6æãå½æ大ã çã«ããããããè¶ è»½éãã¤èåã®ããã£ãé·æéé§åãå±å¤ã§ãè¦èªæ§ã確ä¿ããåéé液æ¶ãã£ã¹ãã¬ã¤ã®æ¡ç¨ãªã©ãä»ãªãè²ãããªãæ°ã ã®ç¹å¾´ã«ãã£ã¦âã¢ãã¤ã«PCã®çæ³âãä½ç¾ãããã®ãã¼ãPCã¯å¤§ããªæ³¨ç®ãéããã ãã®å¾dynabook SS RXã·ãªã¼ãºã¯ãåºæ¬ã¢ã¼ããã¯ãã£ã®å¤æ´ãå«ãã¢ãã«ãã§ã³ã¸ãæ°åã«ããã£ã¦è¡ã£ã¦ããããæ§è½ã»æ©è½ã¨ã¢ãã¤ã«ã®ä¸¡ç«ã¨ããåºæ¬ã³ã³ã»ããã¯2009å¹´ã®ä»ãå¤ãã£ã¦ããªããç¨éãWebé²è¦§ãªã©ã«çµãæ§è½ãå¶éããä¸æ¹ã§ãå§åçãªä½ä¾¡æ ¼ã訴æ±ãã¦ããNetbookã¨ã¯å¯¾ç §çãªè£½åã§ããã 液æ¶ãã£ã¹ãã¬ã¤ï¼åçï¼å·¦ï¼ã¨ãã¼ãã¼ãï¼åçï¼ä¸å¤®ï¼ã天æ¿ï¼åçï¼å³ï¼ã1280Ã800ããã表示ã«å¯¾å¿ãã12.1åã¯ã¤ã液æ¶ãã£ã¹ãã¬ã¤ãæè¼ãæ´å¤©ã®å±å¤ãª
Indilinx製ã³ã³ããã¼ã©ã¨ãã£ãã·ã¥ãæè¼ããSSDã¨ãã¦ã¯å®ä¾¡ãªSerial ATAæ¥ç¶2.5ã¤ã³ãSSDãS592ããA-DATAããçºå£²ãããã å®å£²ä¾¡æ ¼ã¯32GBã¢ãã«ã10,880åã64GBã¢ãã«ã17,500åã128GBã¢ãã«ã31,980åï¼è©³ç´°ã¯ãä»é±è¦ã¤ããæ°è£½åãåç §ã®ãã¨ï¼ã ãã ãã32GB/64GBã¢ãã«ã¯å®å£²ãã¦ããã次åå ¥è·ã¯æªå®ã¨ã®ãã¨ã S592ã¯ãMLCã¿ã¤ãã®ãã©ãã·ã¥ã¡ã¢ãªã¨ã32MBã¾ãã¯64MBã®SDRAMã«ãããã£ãã·ã¥ãæè¼ããSSDãã·ã§ããã«ããã°ã³ã³ããã¼ã©ã¯Indilinx製ãæ¡ç¨ãã¦ããã¨ãããä¼¼ããããªæ§æã®SSDã¨ãã¦ã¯OCZã®ãVertexãã·ãªã¼ãºï¼ãã£ãã·ã¥64MBï¼ãªã©ãããããS592ã¯ãããã3å²ã»ã©å®ãã®ãé åã ã ãã£ãã·ã¥å®¹éã¯32GB/64GBã¢ãã«ã32MBã128GBã¢ãã«ã64MBãæ
å½ç¤¾ã¯ããã½ã³ã³åãã«ãï¼ï¼ï½ï½ããã»ã¹ã®å¤å¤ï¼®ï¼¡ï¼®ï¼¤ãæ¡ç¨ããSSDï¼Solid State Driveï¼ã製ååããæ¥å¹´ç¬¬ï¼ååæï¼ï¼ï¼ï¼ï¼å¹´ï¼ï¼ï¼æï¼ãããµã³ãã«åºè·ãéå§ãã¾ããæ°è£½åã¯ãæ¥çæ大ç´ã®ï¼ï¼ï¼ã®ã¬ãã¤ãããï¼ï¼ã®ã¬ãã¤ãã¾ã§ï¼ï¼ç¨®é¡ãã©ã¤ã³ã¢ããã第ï¼ååæããéç£éå§ã®äºå®ã§ãã ãã½ã³ã³ã«æè¼ãããã¹ãã¬ã¼ã¸ããã¤ã¹ã®å¤§å®¹éåãé«éãã¼ã¿è»¢éåãé²ãä¸ãä»å¾æè¼ãé²ãSSDã®å¤§å®¹éåããã¼ã¿è»¢éé度ã®é«éåã¸ã®ãã¼ãºãé«ã¾ã£ã¦ãã¾ããæ°è£½åã¯ãï¼ï¼ï½ï½ããã»ã¹ã®å¤å¤ï¼®ï¼¡ï¼®ï¼¤ãæ¡ç¨ãããã¨ã§ãå¾æ¥è£½åã®ï¼åã®å®¹éãå®ç¾ãã¦ãã¾ããããã«ãä»åæ°ãã«éçºãã次ä¸ä»£ããã»ã¹ã«ã対å¿å¯è½ãªã³ã³ããã¼ã©ã«ãããå¤å¤ï¼®ï¼¡ï¼®ï¼¤ãé«éã»ä¸¦ååä½ãããå¾æ¥è£½åã«æ¯ã¹ã¦ãã¼ã¿å¦çé度ãï¼å以ä¸é«éåããã¾ãããï¼èªã¿åºãé度æ大ï¼ï¼ï¼ã¡ã¬ãã¤ãï¼ç§ãæ¸ãè¾¼ã¿é度æ大ï¼ï¼ï¼ã¡ã¬ãã¤ãï¼
â 第444å â SSDã®ä¿¡é ¼æ§ã¯ããã§ã«HDDãè¶ ãã¦ãã ï½æ±èã»ãã³ã³ãã¯ã¿ã¼ç¤¾ ã¤ã³ã¿ãã¥ã¼ ä¸æ¨å¹´ãæ¨å¹´ã¨å¤§å¹ ãªä½ã³ã¹ãåãé²ãã ãã¨ã§ãã¢ãã¤ã«PCç¨ã¹ãã¬ã¼ã¸ã¨ãã¦ã®åå¨æãå¢ãã¦ããSSDããããå®ä¾¡ã«ãªã£ãã¨ã¯è¨ãããããã«çµ¶å¯¾çãªè¨æ¶å®¹éã容éãããã®å価ã§ã¯HDDã«ããªããªãSSDããããã»ã©æ³¨ç®ãéããã®ã¯ãé«æ§è½ãä½æ¶è²»é»åãå°åãèè¡ææ§ã¨ãã£ãè¦ç´ ãåãã¦ããããã ã ç¹ã«1.8ã¤ã³ãHDDãåæã¨ããå°åãã¼ãPCã®å ´åãæ¬æ¥ã¯SSDãä¸å©ãªè¨æ¶å®¹éã®é¢ã§ãåçã¬ãã«ã«ãªã£ã¦ãã¦ãããæ¶è²»é»åä½æ¸ã軽éåã¨ãã£ãè¦ç´ ãå«ãããã¼ã¿ã«ã§SSDæè¼ã¢ãã«ã®æ¹ãé åçãªã®ã¯å½ç¶ã®ãã¨ã ã ãããåæã«ããã¼ãPCåãSSDãå¾ã ã«ä¸è¬åããä¸ã§ãSSDã®ã»ã«ã¯MLCã¸ã¨ä¸»æµã移ãå¤ãããã»ã«ã®æ¸ãæãå¯è½åæ°ã¯SLCããæ¸ã£ã¦ãã¾ã£ããæ¬å½ã«SSDã§ã大ä¸å¤«ãªã®
HDD/SSDã®åä½ç¶æ ãæ¤æ»ã§ããã½ãããæ°å¹´ã«ããã使ç¨ãã¦ããHDDã®åä½ã«ä¸å®ãããå ´åãããªã¼ã¯ã·ã§ã³ãªã©ã§å ¥æããä¸å¤HDD/SSDã®ç¶æ ãã§ãã¯ãªã©ã«ãå§ããé¸æãã©ã¤ãã«å¯¾ãã¦ã»ã¯ã¿åä½ã®ä½ã¬ãã«ã¹ãã£ã³ãè¡ãããã©ã¤ãã®ç¶æ ããã¸ã¥ã¢ã«ã«ã°ã©ã表示ããããã¨ãã°ãã¦ã£ã³ãã¦ä¸æ®µã®é»ãé åããã¹ã¦ç·è²ã«å¤ããã°ç¶æ ã¯è¯å¥½ã¨è¨ããããç´«ãé»è²ã赤ã®ãããã¯ãç¾ããã°ä¸è¯ã»ã¯ã¿ã®çºçã示ãã¦ãããã¾ãããã®ä¸ã«è¡¨ç¤ºãããé»ããã¼ãå·¦ããå³ã¸æ¨ªä¸ç´ç·ã«ãããã«ä¼¸ã³ã¦ããã°å®å®æ§ã«åé¡ã¯ãªããããã¼ã®è¼ªéãä¸ä¸ã«å¤§ããä¹±ããã°å£åãé²ãã§ãããã¨ã示ãããããã©ã¤ã交æãæ¤è¨ãã¹ãææã®ç®å®ã«ãªããä½è ãµã¤ãã«ã¯ã¹ãã£ã³çµæããã®è¨ºæä¾ãããã¤ãç´¹ä»ããã¦ããã®ã§åèã«ããã¨ããã ããããã®ã»ããªãã±ã¨ãã¦ãç ´æããJPEGãã¡ã¤ã«ã復æ§ããæ©è½ãªã©ãããã ãèä½æ¨©è ãï¼æï¼IU
1.8ã¤ã³ãã®SSDãæ¡ç¨ããé常ã«ã³ã³ãã¯ããªeSATA/USB 2.0æ¥ç¶ãã¼ã¿ãã«ãã©ã¤ããSSD18MããTranscendããç»å ´ãããå®å£²ä¾¡æ ¼ã¯32GBã¢ãã«ãTS32GSSD18M-Mããç´9,980åã64GBã¢ãã«ãTS64GSSD18M-Mããç´14,980åï¼è©³ç´°ã¯ãä»é±è¦ã¤ããæ°è£½åãåç §ã®ãã¨ï¼ã SSD18Mã¯MLCã¿ã¤ãã®1.8ã¤ã³ãSSDãå èµããå¤ä»ããã©ã¤ãã§ãæ¬ä½ãµã¤ãº80Ã50Ã12.5mm/éé50gã¨é常ã«å°åãã¤è»½éãeSATAæ¥ç¶ãããã¨ã§é«é転éã§ããã®ãç¹å¾´ã§ãeSATAæ¥ç¶æã¯ãªã¼ã90MB/sãã©ã¤ã50MB/sã§ã®è»¢éãå¯è½ã¨ãããUSB 2.0æ¥ç¶æã¯ãªã¼ã35MB/sãã©ã¤ã25MB/sã æ¬ä½å´é¢ã«ã¯eSATAãã¼ãã¨ããBã¿ã¤ãã®USB 2.0ãã¼ããè£ åãä»å±åã¯eSATAã±ã¼ãã«ãUSBã±ã¼ãã«ãå°ç¨ã±ã¼ã¹ãªã©ã
ã©ã³ãã³ã°
ãç¥ãã
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}}