OneDriveè³å¦ä¸¡è« OneDriveã®ç¡æçã§ä½¿ãã容éã¯ããã5GBãããã§ã¯ããã¯ã¢ããã«ä½¿ããªã 2024.08.19

ããã£ã¹ã¯I/Oæ§è½ã¯ã©ã®ããã«ããã°ãããããã®ãããèãã¦ã¿ããã ãããªæ¬é¡ãèããä¸ã§ããããªè³æãPerformance Comparison of IDE and SCSI Disks ããè¦ã¤ãããç´æ¥çã«ã¯ãIDEã¨SCSIãæ¯è¼ããç©ã ããããã©ã¼ãã³ã¹ãèããä¸ã§çç¼ããªãã¦ã¯è¡ããªãç¹ã示ãã¦ãããã ã¡ãã¼é©å½ã«ã¾ã¨ãã㨠ã©ã³ãã ã¢ã¯ã»ã¹ãåä¸ããã«ã¯ãTagged Queuing ãéè¦ã§ããããã£ã¹ã¯å é¨ã®ã¹ã±ã¸ã¥ã¼ã©ãå¯ä¸ããé¨åã§ãã(ã¤ã¾ãã¯ãã£ã¹ã¯ã®ãã¡ã¼ã ã®æ¯é é å)ãSCSIã¨IDEã¨ãã« TCQ/NCQ ã¨ãã¦ç¥ããã¦ãããã·ã¼ã¯æ§è½ã«å¿ãã¦ãããæ·±ãããã¨è¯ããä½ããIDEã®ã·ã¼ã¯æ§è½ãè¥å¹²å£ãã®ã§TCQ/NCQã®æ大ã®æ·±ã32ã§ã¯è¶³ããªããã kernelå´ã®ã¹ã±ã¸ã¥ã¼ã©ã¯éè¦ãä¾ã§ã¯FreeBSDãªã®ã§ãããããªã(ãããã©å ã«ã¹ã±ã¸ã¥ã¼ã©
ã·ãªã¢ã«ATAã®å©ç¨ç¯å²æ¡å¤§ãç®æãã¦çå®ä¸ã®æ¬¡ä¸ä»£ä»æ§ãã·ãªã¢ã«ATA IIããçºè¡¨ããã¦1å¹´ãçµéããããä»å¹´9æã«ã¯ã·ãªã¢ã«ATA IIã®æ©è½ãå¼·åããæ¡å¼µä»æ§ãããã¤ã追å ããããªã©ãããªãç©æ¥µçãªæ§åãããããããä»åã¯ãã·ãªã¢ã«ATA製åã®éçºã«æºãããã³ãããã®ã³ã¡ã³ãã交ããªãããã·ãªã¢ã«ATA IIã§æã注ç®ãããæ°æ©è½ãNative Command Queuingãã®ä»çµã¿ã解説ãã¦ããã âå¤ãã®PCã§ããã©ã¼ãã³ã¹åä¸ãæå¾ ã§ããNative Command Queuing ã·ãªã¢ã«ATA IIã¯ããµã¼ããã¯ã¼ã¯ã¹ãã¼ã·ã§ã³ããããã¯ã¼ã¯ã¹ãã¬ã¼ã¸åãã®æ¡å¼µæ©è½ãæä¾ããã·ãªã¢ã«ATA 1.0ã®è£å©ä»æ§ã§ãããã·ãªã¢ã«ATA IIã«è¿½å ãããæ©è½ã«ã¯ããã¼ã¿ã¢ã¯ã»ã¹ã®å¹çãé«ããNative Command Queuingãã¹ãã¬ã¼ã¸ã®çä½å é¨(温度ãå·å´ãã¡ã³ã®å
Tagged Command Queuing (TCQ) is a technology built into certain ATA and SCSI[1] hard drives. It allows the operating system to send multiple read and write requests to a hard drive. ATA TCQ is not identical in function to the more efficient Native Command Queuing (NCQ) used by SATA drives.[2] SCSI TCQ does not suffer from the same limitations as ATA TCQ. Without TCQ, an operating system was limite
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