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Ȩ Ȩ > ¿¬±¸¹®Çå > ±¹³» ³í¹®Áö > Çѱ¹Á¤º¸°úÇÐȸ ³í¹®Áö > Á¤º¸°úÇÐȸ ÄÄÇ»ÆÃÀÇ ½ÇÁ¦ ³í¹®Áö (KIISE Transactions on Computing Practices)

Á¤º¸°úÇÐȸ ÄÄÇ»ÆÃÀÇ ½ÇÁ¦ ³í¹®Áö (KIISE Transactions on Computing Practices)

Current Result Document : 3 / 25 ÀÌÀü°Ç ÀÌÀü°Ç   ´ÙÀ½°Ç ´ÙÀ½°Ç

ÇѱÛÁ¦¸ñ(Korean Title) O(1) Å©·¡½Ã º¹±¸ ¼öÇà½Ã°£À» °®´Â FTLÀÇ ¼³°è¿Í ±¸Çö
¿µ¹®Á¦¸ñ(English Title) Design and Implementation of Flash Translation Layer with O(1) Crash Recovery Time
ÀúÀÚ(Author) ¹ÚÁØ¿µ   ¹ÚÇöÂù   À¯ Çõ   Joon Young Park   Hyunchan Park   Chuck Yoo  
¿ø¹®¼ö·Ïó(Citation) VOL 21 NO. 10 PP. 0639 ~ 0644 (2015. 10)
Çѱ۳»¿ë
(Korean Abstract)
ÃÖ±Ù ³Î¸® »ç¿ëµÇ´Â Solid State Drive(SSD), embedded Multi Media Card(eMMC) µîÀÇ Ç÷¡½Ã ÀúÀåÀåÄ¡´Â »ç¿ëÀÚ ¿ä±¸¿¡ ÀÇÇØ Á¡Á¡ ±× ¿ë·®ÀÌ Áõ´ëµÇ°í ÀÖ´Ù. Ç÷¡½Ã ÀúÀåÀåÄ¡ ³»ºÎÀÇ Flash Translation Layer(FTL)Àº Àü¿ø À¯½Ç µîÀÇ Å©·¡½Ã »óȲ¿¡¼­ Àüü Ç÷¡½Ã ¿µ¿ªÀ» ´ë»óÀ¸·Î º¹±¸ÇÏ´Â µ¿ÀÛÀ» ÇÏ°Ô µÇ´Âµ¥, ÀúÀåÀåÄ¡ÀÇ °í¿ë·® È­·Î ÀÎÇØ ±× ½Ã°£ÀÌ ±æ¾îÁö´Â ¹®Á¦°¡ ¹ß»ýÇÑ´Ù. º» ³í¹®¿¡¼­´Â ÀÌ·¯ÇÑ ¹®Á¦¸¦ ÇØ°áÇϱâ À§ÇÏ¿© ÀúÀåÀåÄ¡ ¿ë·®¿¡ ºñ·ÊÇÏÁö ¾Êµµ·Ï O(1) Å©·¡½Ã º¹±¸ ¼öÇà ½Ã°£À» °®´Â O1FTLÀ» Á¦¾ÈÇÑ´Ù. À̸¦ À§ÇØ º» ¿¬±¸ÆÀÀº ±âÁ¸¿¡ Ç÷¡½Ã ÆÄÀÏ ½Ã½ºÅÛ¿¡¼­ Á¦¾ÈµÈ ÀÛ¾÷ ¿µ¿ª ±â¹ýÀ» FTL¿¡ Àû¿ëÇÏ°í ½ÇÁ¦ Çϵå¿þ¾î Ç÷§Æû¿¡ ±¸ÇöÇÏ¿´´Ù. ½ÇÇè °á°ú, ´Ù¾çÇÑ ¿ë·®¿¡ ´ëÇØ À¯»çÇÑ º¹±¸ ½Ã°£À» ´Þ¼ºÇÔÀ» º¸¿´À¸¸ç, I/O ¼º´É, ¼ö¸í¿¡ ´ëÇؼ­´Â ´ë´ÜÈ÷ ÀûÀº ¿À¹öÇìµå¸¦ ¿ä±¸ÇÏ´Â °ÍÀ» °ËÁõÇÏ¿´´Ù.
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(English Abstract)
The capacity of flash-based storage such as Solid State Drive(SSD) and embedded Multi Media Card(eMMC) is ever-increasing because of the needs from the end-users. However, if a flash-based storage crashes, such as during power failure, the flash translation layer(FTL) is responsible for the crash recovery based on the entire flash memory. The recovery time increases as the capacity of the flash-based storages increases. We propose O1FTL with O(1) crash recovery time that is independent of the flash capacity. O1FTL adopts the working area technique suggested for the flash file system and evaluates the design on a real hardware platform. The results show that O1FTL achieves a crash recovery time that is independent of the capacity and the overhead, in terms of I/O performance, and achieves a low P/E cycle.
Å°¿öµå(Keyword) Å©·¡½Ã º¹±¸   Ç÷¡½Ã º¯È¯ °èÃþ   SSD   Ç÷¡½Ã ÀúÀåÀåÄ¡   Crash Recovery   Flash Translation Layer   SSD   Flash-based Storage  
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