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1. SSD´Â °¡¿ë¿ë·®ÀÌ ¾øÀ¸¸é ¼ö¸íÀÌ ÆÅÆÅÁØ´Ù. À̸¦ ÇØ°áÇϴ°ÍÀÌ OP¿µ¿ª
2. SSD½ºÆå¿¡ ³ª¿ÍÀÖ´Â TBW¸¦ ¹ÏÁö¸»°í DWPD°ªÀ» º¸¼¼¿ä.
3. ±×³É ÆÄƼ¼Ç¼³Á¤¿¡¼ Àбâ ij½ÃÀÇ °æ¿ì ÃÖ°í¿ë·® * 0.8~0.9(SSD°¡ 100±â°¡ÀÏ °æ¿ì 90±â°¡), Àбâ/¾²±â È¥¿ëij½Ã ¼³Á¤ÀÇ °æ¿ì ÃÖ°í¿ë·® * 0.7À» Çؼ ¾²½Ã¶ó..
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¸ÕÀú OP¿µ¿ªÀ̶ó´Â°É ÀÌÇØÇÏ°í °¡¾ßÇϴµ¥, SSD°¡ ¼¿´ç ¾²±â Á¦ÇÑÀÌ ÀÖ´Ù´Â°Ç ¸¹ÀÌµé ¾Ë°í °è½Ç°Ì´Ï´Ù.
À̸¦ ºÐ»êÇϱâ À§ÇØ SSD°¡ ºó°ø°£¿¡ µ¥ÀÌÅ͸¦ ºÐ»êÇÏ¿© ÀúÀåÇÕ´Ï´Ù.
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¶Ç ¸î°¡Áö Ãß°¡ÀûÀÎ ÀÛ¾÷ÀÌ Àִµ¥, ¾Æ¹«Æ° ÀÌ·±°É ´Ù ÅëƲ¾î¼ TRIM±â´ÉÀ̶ó°í ÇÕ´Ï´Ù. À̸¦ ÀÌ¿ëÇϱâ À§Çؼ´Â SSD¿¡ ºó°ø°£ÀÌ ÀÖ¾î¾ß ÇÏÁÒ. À̸¦ °Á¦ÀûÀ¸·Î Àâ¾ÆÁÖ´Â°Ô OP¿µ¿ª ¼³Á¤ÀÌ°í, ¶Ç ÀÓÀÇÀûÀ¸·Î Á¦Á¶»ç°¡ »ç¿ëÀÚ ´«¿¡ ¶çÁö ¾Ê´Â ¿µ¿ªÀ» ¼³Á¤Çؼ ³ª¿É´Ï´Ù.
¿ä°Ç Å·½ºÅæ ȨÆäÀÌÁö¿¡¼ °¡Á®¿Â Á¦Á¶»ç°¡ ÆǸÅÇÒ ¶§ ¹Ì¸® ¼³Á¤ÇصРOP¿µ¿ªÀÔ´Ï´Ù.
Àú°¡Çü ¸ðµ¨Áß 120±â°¡°¡ ¾Æ´Ñ 128·Î ÆȰųª 240ÀÌ ¾Æ´Ñ 256±â°¡·Î ÆÄ´Â°Ç È®½ÇÇÏÁø ¾ÊÁö¸¸ ÀÌ·¯ÇÑ OP¿µ¿ªÀÌ ¾øÀÌ ÆǸÅÇϴ°ɷΠ¾Ë°í ÀÖÁÒ.
Àú±â¼ ÀбâÁ߽ɰȰ¡ ÀÏ¸í ¼¹ö¿¡¼ Read-intensive·Î Æȸ®´Â ¸ðµ¨Àε¥ read intensive-mixed use-write intensive·Î µî±ÞÀÌ ³ª´µ´Â°É·Î ¾Ë°í ÀÖ½À´Ï´Ù.(¿©±â±îÁö´Â Àß...)
±×¸®°í TBW¿Í DWPD... ÀÌ°É ¾Ë¾Æ¾ß Çϴµ¥, ¹Ø¿¡ ±Û¿¡¼ Á¦Á¶»ç°¡ ¼³Á¤ÇÑ TBW¿¡ µµ´ÞÇÏÁöµµ ¾Ê¾Ò´Âµ¥ ½º½ºµð°¡ Á×¾ú´Ù... ¶ó´Â ±ÛÀÌ Àִµ¥ À§¿¡ TBW¶õ... SSD ÃÖ°í¿ë·® * 0.3À» ÇÑ µ¥ÀÌÅÍ(Áï 120±â°¡ SSD¶ó¸é 36±â°¡)¸¦ Áö¼ÓÀûÀ¸·Î ¾²°í Áö¿üÀ» ¶§ÀÇ °¡¿ë¿ë·®ÀÔ´Ï´Ù.
Áï... TBW¸¸À» °¡Áö°í SSDÀÇ ¼ö¸íÀ» ÃøÁ¤ÇÏ¸é ¾ÈµË´Ï´Ù. Àú »çÁøÁß ¿ìÃø¿¡ ÀÖ´Â DWPD¸¦ ºÁ¾ßÁö¿ä.
DWPD´Â https://www.kingston.com/kr/ssd/dwpd ¿©±â¿¡ ÀÚ¼¼ÇÑ ¼³¸íÀÌ Àִµ¥ °£´ÜÇÏ°Ô À̾߱âÇؼ ÇÏ·ç¿¡ µ¥ÀÌÅ͸¦ ¾ó¸¶³ª ä¿üÀ» ¶§ º¸Áõ±â°£±îÁö ¾µ ¼ö ÀֳĴ °ÍÀÔ´Ï´Ù.
120±â°¡ SSD°¡ DWPD°¡ 0.5ÀÌ°í º¸Áõ±â°£ÀÌ 1³âÀ̶ó¸é ÇÏ·ç¿¡ 60±â°¡¾¿ µ¥ÀÌÅ͸¦ ½è´Ù Áö¿ü´Ù¸¦ ¹Ýº¹Çϸé 1³â¸¸¿¡ °íÀå³´Ù´Â À̾߱âÁÒ. µû¶ó¼, ½Ã³î·ÎÁö¿¡¼ SSDij½ÌÀ¸·Î ÃÖ°í¿ë·®À» ¼³Á¤ÇÏ°í ÀÌ¿ëÇÏ·Á¸é ÃÖ¼ÒÇÑ Readintensive¸ðµ¨À» ¼±ÅÃÇØ¾ß ÇÏ´Â°É ¾Ë ¼ö ÀÖ½À´Ï´Ù.(DWPD°¡ 1.3À̳ª µÇ´Ï±ñ¿ä. ÀÌ°Ç ¹Ì¸® ¼³Á¤ÇسõÀº OP¿µ¿ªÀÌ Å©±â ¶§¹®¿¡ SSD¸¦ ²Ë ä¿ö¼ ½áµµ µÈ´Ù´Â À̾߱âÁÒ.)
¾Æ¹«Æ° ±×·¡¼..... OP¿µ¿ªÀ» ¼³Á¤Çϴ°ÍÀº ²À OS³ª Àü¿ëÇÁ·Î±×·¥À» ÅëÇؼ ¼³Á¤ÇØ¾ß Çϴ°¡?¸¦ ¾ê±âÇÏ¸é ±×°Ç ¶Ç ¾Æ´Õ´Ï´Ù.
±×³É SSD°¡ ¾Ë¾Æ¼ µ¥ÀÌÅÍ°¡ ½áÁöÁö ¾Ê´Â ºó°ø°£À» ½á¸Ô´Â °ÍÀÔ´Ï´Ù. µû¶ó¼ ±×³É ÆÄƼ¼ÇÀ» ÀÛ°Ô ÀâÀ¸¸é ¾Ë¾Æ¼ OP¿µ¿ªÃ³·³ µ¹¾Æ°©´Ï´Ù.
https://www.seagate.com/kr/ko/tech-insights/ssd-over-provisioning-benefits-master-ti/
½Ã°ÔÀÌÆ®ÀÇ OP¿µ¿ª¿¡ ´ëÇÑ ¼³¸íÀÔ´Ï´Ù. ºó°ø°£À» ³öµÑ°æ¿ì OP¿µ¿ªÃ³·³ µ¹¾Æ°£´Ù°í ¼³¸íµÇ¾î ÀÖÁÒ.
"Some SSD manufacturers provide software tools to allow for over-provisioning of drives by the user. Actually, even without special software, any user can set aside a portion of the SSD when first setting it up in the system by creating a partition that does not use the drive¡¯s full capacity. This unclaimed space will automatically be used by the controller as dynamic over-provisioning."
(ÇØ´ç»çÁøÀº ÆÛ¿Ô°í Ãâó´Â »çÁø¿¡ ÀûÇôÀÖ½À´Ï´Ù.)
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