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Ȩ Ȩ > ¿¬±¸¹®Çå > ±¹³» ³í¹®Áö > Çѱ¹Á¤º¸°úÇÐȸ ³í¹®Áö > Á¤º¸°úÇÐȸ³í¹®Áö (Journal of KIISE)

Á¤º¸°úÇÐȸ³í¹®Áö (Journal of KIISE)

Current Result Document : 8 / 8 ÀÌÀü°Ç ÀÌÀü°Ç

ÇѱÛÁ¦¸ñ(Korean Title) SSD ÀÔÃâ·Â ¿äû ½ºÆ®¸²µéÀÇ QoS Áö¿øÀ» À§ÇÑ Ç÷¡½Ã ¿¬»ê ±×·ì ½ºÄÉÁÙ¸µ
¿µ¹®Á¦¸ñ(English Title) Flash Operation Group Scheduling for Supporting QoS of SSD I/O Request Streams
ÀúÀÚ(Author) ÀÌÀº±Ô   ¿ø¼±   ÀÌÁØ¿ì   ±è°­Èñ   ³²ÀÌÇö   Eungyu Lee   Sun Won   Joonwoo Lee   Kanghee Kim   Eyeehyun Nam  
¿ø¹®¼ö·Ïó(Citation) VOL 42 NO. 12 PP. 1480 ~ 1485 (2015. 12)
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(Korean Abstract)
ÃÖ±Ù¿¡ ¼­¹ö ½Ã½ºÅÛ¿¡¼­ SSD(Solid-State Drive)°¡ °í¼º´É ÀúÀåÀåÄ¡ ¹× ij½Ã·Î¼­ ¸¹ÀÌ »ç¿ëµÊ¿¡ µû¶ó ´Ù¾çÇÑ ¼­¹ö ÀÀ¿ëµéÀÇ ÀÔÃâ·Â ¿äû ½ºÆ®¸²µéÀ» À§ÇØ SSD ¼öÁØ¿¡¼­ ¼­ºñ½º Ç°Áú(Quality-of-Service)¸¦ Á¦°øÇÒ ¼ö ÀÖ´ÂÁö¿¡ ´ëÇÑ °ü½ÉÀÌ ³ô¾ÆÁö°í ÀÖ´Ù. ÇöÀç±îÁö ´ëºÎºÐÀÇ SSD´Â SATA ¹ö½º »ó¿¡¼­ AHCI ÄÁÆ®·Ñ·¯¸¦ »ç¿ëÇؿԱ⠶§¹®¿¡ °¢ ÀÔÃâ·Â ½ºÆ®¸²À» SSD ³»ºÎ¿¡¼­ ±¸º°ÇÏ¿© ¼­ºñ½ºÇÒ ¼ö°¡ ¾ø¾ú´Ù. ±×·¯³ª, ÃÖ±Ù¿¡ »õ·Î¿î SSD ÀÎÅÍÆäÀ̽º·Î¼­ PCI Express ¹ö½º »ó¿¡¼­ NVME ÄÁÆ®·Ñ·¯°¡ Á¦¾ÈµÊ¿¡ µû¶ó °¢ ÀÔÃâ·Â ½ºÆ®¸²À» SSD ³»ºÎ¿¡¼­ ±¸º°ÇÒ ¼ö ÀÖ°Ô µÇ¾ú°í, ÀÌ¿¡ µû¶ó ÀÔÃâ·Â ¿äûµéÀ» ½ºÄÉÁÙ¸µ ÇÒ ¼ö ÀÖ°Ô µÇ¾ú´Ù. º» ³í¹®Àº NVME ±â¹Ý Ç÷¡½Ã ÀúÀå ÀåÄ¡¸¦ À§ÇÑ Ç÷¡½Ã ¿¬»ê ±×·ì ½ºÄÉÁÙ¸µ(Flash Operation Group Scheduling)À» Á¦¾ÈÇÏ°í, °¡ÁßÄ¡¿¡ µû¶ó ÀÔÃâ·Â ½ºÆ®¸²º°·Î ºñ·Ê ÁöºÐ ´ë¿ªÆøÀ» Á¦°øÇÒ ¼ö ÀÖÀ½À» QEMU ±â¹Ý ½Ã¹Ä·¹À̼ÇÀ» ÅëÇØ º¸ÀδÙ.
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(English Abstract)
As SSDs are increasingly being used as high-performance storage or caches, attention is increasingly paid to the provision of SSDs with Quality-of-Service for I/O request streams of various applications in server systems. Since most SSDs are using the AHCI controller interface on a SATA bus, it is not possible to provide a differentiated service by distinguishing each I/O stream from others within the SSD. However, since a new SSD interface, the NVME controller interface on a PCI Express bus, has been proposed, it is now possible to recognize each I/O stream and schedule I/O requests within the SSD for differentiated services. This paper proposes Flash Operation Group Scheduling within NVME-based flash storage devices, and demonstrates through QEMU-based simulation that we can achieve a proportional bandwidth share for each I/O stream.
Å°¿öµå(Keyword) Ç÷¡½Ã ÀúÀå ÀåÄ¡   solid-state drive   ¼­ºñ½º Ç°Áú   NVME   Ç÷¡½Ã ¿¬»ê ½ºÄÉÁÙ¸µ   flash storage device   solid-state drive   quality of service   non-volatile memory express   flash operation scheduling  
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