{"id":344,"date":"2019-06-17T00:01:53","date_gmt":"2019-06-16T15:01:53","guid":{"rendered":"https:\/\/blog.enyou.net\/?p=344"},"modified":"2019-06-17T00:01:54","modified_gmt":"2019-06-16T15:01:54","slug":"%eb%94%94%ec%8a%a4%ed%81%ac-%ec%8a%a4%ec%bc%80%ec%a4%84%eb%a7%81-%ec%95%8c%ea%b3%a0%eb%a6%ac%ec%a6%98","status":"publish","type":"post","link":"https:\/\/blog.enyou.net\/ko\/archives\/344","title":{"rendered":"\ub514\uc2a4\ud06c \uc2a4\ucf00\uc904\ub9c1 \uc54c\uace0\ub9ac\uc998"},"content":{"rendered":"\n<p>(\uc0ac\uc2e4 \uae00\uc744 \uc4f0\ub294 \uc774\uc720\ub294 C-SCAN\uc758 C\uac00 \ubb34\uc2a8 \uc758\ubbf8\uc778\uc9c0 \uad81\uae08\ud574\uc11c \uc4f4\ub2e4.)<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">FCFS<\/h2>\n\n\n\n<p>First come, First serve, \uc774\ub984\ub2f5\uac8c \uc624\ub294 \uc21c\uc11c\ub300\ub85c \uc815\uc9c1\ud558\uac8c \ucc98\ub9ac\ud574\uc8fc\ub294 \ubc29\uc2dd. \ubcc4\ub3c4\uc758 \ucd5c\uc801\ud654\uac00 \uc5c6\uae30 \ub54c\ubb38\uc5d0 \ud3c9\uade0 \ub300\uae30\uc2dc\uac04\uc774 \ub290\ub9ac\ub2e4.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">SSTF<\/h2>\n\n\n\n<p>Shortest Seek Time First, \ud604\uc7ac \uc704\uce58\uc5d0\uc11c \ud0d0\uc0c9 \uc2dc\uac04\uc774 \uac00\uc7a5 \uc9e7\uc740 \ube14\ub7ed\uc744 \uba3c\uc800 \ucc98\ub9ac\ud574\uc8fc\ub294 \ubc29\uc2dd. \ud5e4\ub4dc\uac00 \uc790\uc8fc \uc6c0\uc9c1\uc77c \uc218 \uc788\uace0, \uc5b4\ub5a4 \ube14\ub7ed\uc740 \uc911\uac04\uc5d0 \ub07c\uc5b4\ub4e0 \ube14\ub7ed\uc73c\ub85c \uc778\ud574 \ucc98\ub9ac\uac00 \ub108\ubb34 \ub290\ub9ac\uac70\ub098, \uc601\uc601 \ucc98\ub9ac\ub418\uc9c0 \uc54a\uc744 \uc218 \uc788\ub2e4. (Starvation)<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">SCAN<\/h2>\n\n\n\n<p>\uc5d8\ub9ac\ubca0\uc774\ud130 \uc54c\uace0\ub9ac\uc998\uc758 \uc77c\uc885. \uc77c\ubc18\uc801\uc778 \uc5d8\ub9ac\ubca0\uc774\ud130\ub294 \uc6c0\uc9c1\uc774\ub294 \ubc29\ud5a5\uc758 \ubcc0\ud654\uc640 \uc0ac\ub78c\ub4e4\uc774 \uae30\ub2e4\ub9ac\ub294 \ud3c9\uade0 \ub300\uae30\uc2dc\uac04\uc744 \uc904\uc774\uae30 \uc704\ud574\uc11c \ud55c\ucabd\uc73c\ub85c\ub9cc \uc6c0\uc9c1\uc774\ub2e4\uac00, \ub2e4\ub978 \ucabd\uc73c\ub85c \uc6c0\uc9c1\uc774\uac8c \ub418\ub294\ub370,<sup class=\"modern-footnotes-footnote \" data-mfn=\"1\" data-mfn-post-scope=\"00000000000005670000000000000000_344\"><a href=\"javascript:void(0)\"  role=\"button\" aria-pressed=\"false\" aria-describedby=\"mfn-content-00000000000005670000000000000000_344-1\">1<\/a><\/sup><span id=\"mfn-content-00000000000005670000000000000000_344-1\" role=\"tooltip\" class=\"modern-footnotes-footnote__note\" tabindex=\"0\" data-mfn=\"1\">\ud639\uc2dc \uc5d8\ub9ac\ubca0\uc774\ud130\uc758 \uc791\ub3d9 \uc694\ub839\uc5d0 \uad00\uc2ec\uc774 \uc5c6\ub358 \uc0ac\ub78c\uc744 \uc704\ud574 \uc801\ub294\ub2e4\uba74, \uc5d8\ub9ac\ubca0\uc774\ud130\ub294 \uc6c0\uc9c1\uc774\ub294 \ubc29\ud5a5\uc73c\ub85c \uc624\ub294 \uc694\uccad\uc744 \uba3c\uc800 \ucc98\ub9ac\ud55c\ub2e4. \uc989, 8\uce35\uc5d0\uc11c \ub0b4\ub824\uac00\uace0 \uc788\ub294 \uc5d8\ub9ac\ubca0\uc774\ud130\uc5d0\uc11c 11\uce35\uacfc 1\uce35\uc758 \uc0ac\ub78c\uc774 \ub3d9\uc2dc\uc5d0 \ub20c\ub800\ub2e4\uba74, 1\uce35\uc758 \uc0ac\ub78c\uc774 \uba3c\uc800 \ucc98\ub9ac\ub418\uace0, \ub9cc\uc57d, 1\uce35 \uac00\uae30\uc804\uc5d0 \uc5d8\ub9ac\ubca0\uc774\ud130\uac00 5\uce35\uc5d0 \uc788\uc744 \ub54c, 3\uce35 \uc0ac\ub78c\uc774 \ubc84\ud2bc\uc744 \ub204\ub974\uba74, 3\uce35\uc5d0 \uc788\ub294 \uc0ac\ub78c\uc774 \uba3c\uc800 \ud0c4\ub2e4.<\/span> \uadf8\ub7ec\ud55c \ud2b9\uc131\uc744 \ubc18\uc601\ud55c \uc54c\uace0\ub9ac\uc998. \ub2e4\ub9cc \uc5d8\ub9ac\ubca0\uc774\ud130 \uc54c\uace0\ub9ac\uc998\uc744 \uadf8\ub300\ub85c \uc801\uc6a9\ud55c SCAN\uc740 \ud50c\ub798\ud130\uc758 \uc911\uac04\uc5d0 \uc788\ub294 \ube14\ub7ed\ub4e4\uc774 \ub450\ubc88\uc774\ub098 \ucc98\ub9ac\ub418\ub294 \ubb38\uc81c\ub3c4 \uc788\uace0, \uc544\ubb34\ub798\ub3c4 \uc0c1\ub300\uc801\uc73c\ub85c \uc0c1\ud558\ub85c \uc774\ub3d9\ud558\uba74\uc11c \uc694\uccad \ube14\ub7ed\ub4e4\uc758 \ucc98\ub9ac \uc2dc\uac04\uc774 \uaf64 \ucc28\uc774\uac00 \ub098\uac8c \ub41c\ub2e4. \uadf8\ub798\uc11c \uc544\ub798\uc758 C-SCAN\uc774 \uace0\uc548\ub418\uc5c8\ub2e4.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">C-SCAN<\/h2>\n\n\n\n<p>Circular-SCAN. \uac00\uc0c1\uc73c\ub85c \ud50c\ub798\ud130\uc5d0 \uc704\uce58\ud55c \uc2e4\ub9b0\ub354\ub4e4\uc774 \ub04a\uc5b4\uc838 \uc788\uc9c0 \uc54a\uace0, \uac00\uc7a5 \ubc14\uae65\ucabd \uc2e4\ub9b0\ub354\uc640 \uac00\uc7a5 \uc548\ucabd \uc2e4\ub9b0\ub354\uac00 \uc5f0\uacb0\ub418\uc5b4 \uc788\ub2e4\uace0 \uc0dd\uac01\ud558\uba74, \uadf8\uc800 \ud55c\ucabd \ubc29\ud5a5\uc73c\ub85c\ub9cc \ucb48\uc6b1 \uc77d\ub294 \uac83\uc774 \ub354\uc6b1 \uacf5\ud3c9\ud558\uac8c \ucc98\ub9ac \uac00\ub2a5\ud558\uae30 \ub54c\ubb38\uc5d0 \uace0\uc548\ub418\uc5c8\ub2e4. (\uc2e4\ub9b0\ub354\ub97c \uc6d0\uc18c\uc758 \ub05d\uacfc \ucc98\uc74c\uc774 \uc5f0\uacb0\ub41c \ud658\ud615 \ub9ac\uc2a4\ud2b8\ub77c\uace0 \uc0dd\uac01\ud55c\ub2e4.) \ud55c\ucabd \ubc29\ud5a5\uc73c\ub85c\ub9cc \uc77d\ub2e4\uac00, \ud5e4\ub4dc\ub97c \ub2e4\uc2dc \uac00\uc7a5 \ub05d\ucabd\uc73c\ub85c \ub2e4\uc2dc \uc704\uce58\uc2dc\ud0a4\ub294 \ubc29\ubc95\uc774\uae30 \ub54c\ubb38\uc5d0, (\uc608\ub97c \ub4e4\uc5b4 \ubc14\uae65\uc5d0\uc11c \uc548 \ucabd\uc73c\ub85c \uc77d\ub294\ub2e4\uba74, \uc548\ucabd\uc5d0 \ub3c4\ub2ec\ud588\uc744 \ub54c\ub294 \uadf8\ub0e5 \ud5e4\ub4dc\uc758 \uc704\uce58\ub97c \ubc14\uae65\ucabd\uc73c\ub85c \uc7ac\uc704\uce58 \uc2dc\ud0a4\uae30\ub9cc \ud55c\ub2e4. \uc911\uac04\uc5d0 \uc77d\uae30 \uc791\uc5c5\uc744 \uc548\ud558\uace0.) \ud5e4\ub4dc\ub97c \uc7ac\uc704\uce58 \uc2dc\ud0a4\ub294 \uac83\uc740 \uadf8\ub0e5 \uc190\uc2e4\ub41c \uc2dc\uac04\uc5d0 \ubd88\uacfc\ud568.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">C-LOOK<\/h2>\n\n\n\n<p>C-SCAN\uc758 \uac1c\uc120 \ubc84\uc804, \ubb34\uc791\uc815 \uac00\uc7a5 \ubc14\uae65\uc5d0\uc11c \uac00\uc7a5 \uc548\ucabd\uc73c\ub85c \uc77d\uc9c0 \ub9d0\uace0, \uc77d\uc744 \uc6d0\uc18c\uac00 \uc788\ub294 \ubd80\ubd84\uc5d0\uc11c\ub9cc \uc774\ub3d9\ud558\ub294 \ubc29\ubc95<\/p>\n\n\n\n<p>SSD \ucc98\ub7fc \uc804\uc790\uc801 \uc800\uc7a5\uc7a5\uce58\ub294 \uadf8\ub0e5 FCFS\uc744 \uc368\ub3c4 \ubb34\ubc29\ud558\uace0 (\ub370\uc774\ud130\uc758 Seek Time\uc5d0 \ucc28\uc774\uac00 \uc5c6\uc73c\ub2c8\uae4c), \ud558\ub4dc\ub514\uc2a4\ud06c\ub294 \uc81c\uc870\uc0ac\uc5d0 \ub530\ub77c \ub2e4\ub974\uaca0\uc9c0\ub9cc SCAN\uc744 \uc4f0\ub294 \ub4ef\ud558\ub2e4. (\ub531\ud788 \ubb34\uc2a8 \uc54c\uace0\ub9ac\uc998\uc744 \uc4f0\ub294\uc9c0 \uacf5\uac1c\ud574\ub193\uc740 \uc81c\uc870\uc0ac\ub294 \uc5c6\ub294 \uac83 \uac19\ub2e4.)<\/p>\n","protected":false},"excerpt":{"rendered":"<p>(\uc0ac\uc2e4 \uae00\uc744 \uc4f0\ub294 \uc774\uc720\ub294 C-SCAN\uc758 C\uac00 \ubb34\uc2a8 \uc758\ubbf8\uc778\uc9c0 \uad81\uae08\ud574\uc11c \uc4f4\ub2e4.) FCFS First come, First serve, \uc774\ub984\ub2f5\uac8c \uc624\ub294 \uc21c\uc11c\ub300\ub85c \uc815\uc9c1\ud558\uac8c \ucc98\ub9ac\ud574\uc8fc\ub294 \ubc29\uc2dd. \ubcc4\ub3c4\uc758 \ucd5c\uc801\ud654\uac00 \uc5c6\uae30 \ub54c\ubb38\uc5d0 \ud3c9\uade0 \ub300\uae30\uc2dc\uac04\uc774 \ub290\ub9ac\ub2e4. SSTF Shortest Seek Time First, \ud604\uc7ac \uc704\uce58\uc5d0\uc11c \ud0d0\uc0c9 \uc2dc\uac04\uc774 \uac00\uc7a5 \uc9e7\uc740 \ube14\ub7ed\uc744 \uba3c\uc800 \ucc98\ub9ac\ud574\uc8fc\ub294 \ubc29\uc2dd. \ud5e4\ub4dc\uac00 \uc790\uc8fc \uc6c0\uc9c1\uc77c \uc218 \uc788\uace0, \uc5b4\ub5a4 \ube14\ub7ed\uc740 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[1],"tags":[],"class_list":["post-344","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"jetpack_featured_media_url":"","jetpack-related-posts":[],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/blog.enyou.net\/ko\/wp-json\/wp\/v2\/posts\/344"}],"collection":[{"href":"https:\/\/blog.enyou.net\/ko\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.enyou.net\/ko\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.enyou.net\/ko\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.enyou.net\/ko\/wp-json\/wp\/v2\/comments?post=344"}],"version-history":[{"count":6,"href":"https:\/\/blog.enyou.net\/ko\/wp-json\/wp\/v2\/posts\/344\/revisions"}],"predecessor-version":[{"id":350,"href":"https:\/\/blog.enyou.net\/ko\/wp-json\/wp\/v2\/posts\/344\/revisions\/350"}],"wp:attachment":[{"href":"https:\/\/blog.enyou.net\/ko\/wp-json\/wp\/v2\/media?parent=344"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.enyou.net\/ko\/wp-json\/wp\/v2\/categories?post=344"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.enyou.net\/ko\/wp-json\/wp\/v2\/tags?post=344"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}