{"id":359,"date":"2022-04-11T11:44:11","date_gmt":"2022-04-11T02:44:11","guid":{"rendered":"https:\/\/www.hagisol.co.jp\/techblog\/?p=359"},"modified":"2024-07-17T07:47:14","modified_gmt":"2024-07-16T22:47:14","slug":"post-359","status":"publish","type":"post","link":"https:\/\/www.hagisol.co.jp\/techblog\/?p=359","title":{"rendered":"SSD\u306e\u9078\u3073\u304b\u305f(1\/5)\uff1aTBW\u306f\u4f7f\u3044\u304b\u305f\u3067\u6c7a\u307e\u308b\uff01"},"content":{"rendered":"\n<div class=\"wp-block-buttons is-layout-flex wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button has-custom-width wp-block-button__width-50\"><a class=\"wp-block-button__link has-white-color has-vivid-cyan-blue-background-color has-text-color has-background wp-element-button\" href=\"https:\/\/www.hagisol.co.jp\/form\/contact.php\"><strong>\u304a\u554f\u3044\u5408\u308f\u305b\u306f\u3053\u3061\u3089<\/strong><\/a><\/div>\n<\/div>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" src=\"https:\/\/www.hagisol.co.jp\/techblog\/wp-content\/uploads\/2022\/02\/surprise-ssd.jpeg\" alt=\"\" class=\"wp-image-368\"\/><\/figure>\n\n\n\n<h2 id=\"outline__1\" class=\"wp-block-heading\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-cyan-blue-color\">\u3053\u306e\u8a18\u4e8b\u306b\u95a2\u9023\u3059\u308b\u88fd\u54c1<\/mark><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/www.hagisol.co.jp\/products\/storage\" target=\"_blank\" rel=\"noreferrer noopener\">\u30d5\u30e9\u30c3\u30b7\u30e5\u30b9\u30c8\u30ec\u30fc\u30b8\u88fd\u54c1<\/a><\/li>\n<\/ul>\n\n\n\n<h2 id=\"outline__2\" class=\"wp-block-heading\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-cyan-blue-color\">\u304a\u3053\u3068\u308f\u308a<\/mark><\/h2>\n\n\n\n<p>\u3000\u3053\u306e\u8a18\u4e8b\u306f\u3001<a rel=\"noreferrer noopener\" href=\"https:\/\/qiita.com\/ken-yossy\/items\/27d2cdba22c58e9aa6f2\" target=\"_blank\">2019\u5e7410\u6708\u306bQiita\u306b\u6295\u7a3f\u3057\u305f\u8a18\u4e8b<\/a>\u3092\u52a0\u7b46\u4fee\u6b63\u3057\u305f\u3082\u306e\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u3000\u307e\u305f\u3001\u3053\u306e\u8a18\u4e8b\u306e\u30aa\u30ea\u30b8\u30ca\u30eb\u306f\u65e5\u672c\u8a9e\u3067\u66f8\u304b\u308c\u3066\u3044\u307e\u3059\u3002\u8a18\u4e8b\u304c\u65e5\u672c\u8a9e\u4ee5\u5916\u306e\u8a00\u8a9e\u3067\u8868\u793a\u3055\u308c\u3066\u3044\u308b\u5834\u5408\u3001\u305d\u308c\u306f\u6a5f\u68b0\u7ffb\u8a33\u306e\u7d50\u679c\u3067\u3059\u3002\u5f53\u793e\u306f\u6a5f\u68b0\u7ffb\u8a33\u306e\u7cbe\u5ea6\u306b\u8cac\u4efb\u3092\u8ca0\u3044\u307e\u305b\u3093\u3002<\/p>\n\n\n\n<h2 id=\"outline__3\" class=\"wp-block-heading\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-cyan-blue-color\">\u306f\u3058\u3081\u306b<\/mark><\/h2>\n\n\n\n<p>\u3000\u30b9\u30c8\u30ec\u30fc\u30b8\u3092\u9078\u3076\u969b\u3001\u30c7\u30fc\u30bf\u30a2\u30af\u30bb\u30b9\u6027\u80fd\u3001\u4fa1\u683c\u3001\u305d\u3057\u3066\u5bff\u547d\u306a\u3069\u3092\u5224\u65ad\u57fa\u6e96\u306b\u3055\u308c\u308b\u3053\u3068\u304c\u591a\u3044\u3068\u601d\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u3000\u7279\u306b\u3001NAND\u30d5\u30e9\u30c3\u30b7\u30e5\u30e1\u30e2\u30ea\u3092\u4e0d\u63ee\u767a\u6027\u8a18\u61b6\u5a92\u4f53\u3068\u3059\u308bSolid State Drive\uff08\u4ee5\u964d\u3001\u5358\u306b&#8221;SSD&#8221;\u3068\u8a18\u8f09\u3057\u307e\u3059\uff09\u306e\u5834\u5408\u3001\u5bff\u547d\u304c\u4e3b\u306a\u5224\u65ad\u57fa\u6e96\u306e\u3072\u3068\u3064\u306b\u306a\u308a\u5f97\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u3000\u4f7f\u7528\u4e0a\u306e\u4e0d\u5099\u3084\u843d\u4e0b\u306b\u3088\u308b\u7834\u640d\u306a\u3069\u3092\u9664\u3051\u3070\u3001SSD\u306e\u88fd\u54c1\u5bff\u547d\u306f\u3001\u5e83\u304f\u77e5\u3089\u308c\u3066\u3044\u308b\u3088\u3046\u306b\u3001NAND\u30d5\u30e9\u30c3\u30b7\u30e5\u30e1\u30e2\u30ea\u306e\u30d6\u30ed\u30c3\u30af\uff08\u4ee5\u964d\u3001\u5358\u306b\u300c\u30d6\u30ed\u30c3\u30af\u300d\u3068\u8a18\u8f09\u3057\u307e\u3059\uff09\u306e\u66f8\u304d\u63db\u3048\u56de\u6570\u306b\u4f9d\u5b58\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u3000\u305d\u3057\u3066\u30d6\u30ed\u30c3\u30af\u306e\u66f8\u304d\u63db\u3048\u56de\u6570\u306b\u8d77\u56e0\u3059\u308bSSD\u306e\u5bff\u547d\u306e\u6307\u6a19\u3068\u3057\u3066\u3001Terabytes Written (TBW)\u3092\u601d\u3044\u6d6e\u304b\u3079\u308b\u65b9\u304c\u591a\u3044\u3068\u601d\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u3000<strong>\u3057\u304b\u3057\u3001TBW\u306f\u3042\u308b\u7279\u5b9a\u306e\u4f7f\u3044\u304b\u305f\uff08\u30ef\u30fc\u30af\u30ed\u30fc\u30c9\uff09\u3067SSD\u3092\u4f7f\u7528\u3057\u305f\u5834\u5408\u306e\u5024\u3067\u3042\u308a\u3001\u540c\u3058SSD\u3067\u3082\u4f7f\u3044\u304b\u305f\u304c\u5909\u308f\u308b\u3068\u5024\u304c\u5909\u308f\u308a\u307e\u3059\u3002<\/strong><\/p>\n\n\n\n<p>\u3000\u3053\u308c\u306fSATA SSD\u3067\u3082NVMe SSD\u3067\u3082\u540c\u3058\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u3000\u4f8b\u3048\u3070\u3001\u3042\u308bSSD\u306e\u88fd\u54c1\u4ed5\u69d8\u306b\u300cTBW\u306f500 TB\u300d\u3068\u8a18\u8f09\u3055\u308c\u3066\u3044\u3066\u3082\u3001<strong>\u3069\u306e\u3088\u3046\u306a\u4f7f\u3044\u304b\u305f\u3067\u3082\u30db\u30b9\u30c8\u304b\u3089500 TB\u66f8\u304d\u8fbc\u3081\u308b\u3068\u4fdd\u8a3c\u3057\u3066\u3044\u308b\u308f\u3051\u3067\u306f\u3042\u308a\u307e\u305b\u3093<\/strong>\u3002<\/p>\n\n\n\n<p>\u3000\u305d\u3053\u3067\u3001\u3053\u308c\u304b\u3089\u6570\u672c\u306e\u8a18\u4e8b\u3067\u3001\u5bff\u547d\u3082\u542b\u3081\u305f\u300cSSD\u306e\u9078\u629e\u57fa\u6e96\u300d\u306b\u3064\u3044\u3066\u307e\u3068\u3081\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u3000\u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001TBW\u306e\u5b9a\u7fa9\u3068\u3001SSD\u306e\u88fd\u54c1\u4ed5\u69d8\u306b\u8a18\u8f09\u3055\u308c\u3066\u3044\u308bTBW\u306e\u610f\u5473\u3092\u8aac\u660e\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h2 id=\"outline__4\" class=\"wp-block-heading\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-cyan-blue-color\">\u307e\u3068\u3081<\/mark><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>SSD\u306e\u88fd\u54c1\u4ed5\u69d8\u4e2d\u306eTBW\u306fJEDEC\u306e\u30ef\u30fc\u30af\u30ed\u30fc\u30c9\uff08\u7279\u306b\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u30ef\u30fc\u30af\u30ed\u30fc\u30c9\uff09\u3092\u7528\u3044\u3066\u7b97\u51fa\u3057\u305f\u5024\u304c\u591a\u3044<\/li>\n\n\n\n<li>TBW\u306f\u30ef\u30fc\u30af\u30ed\u30fc\u30c9\u306b\u5f37\u304f\u4f9d\u5b58\u3059\u308b\u305f\u3081<strong>\u88fd\u54c1\u4ed5\u69d8\u306eTBW\u304c\u53c2\u8003\u306b\u306a\u3089\u306a\u3044\u3053\u3068\u3082\u3042\u308b<\/strong><\/li>\n\n\n\n<li>SSD\u306e\u88fd\u54c1\u4ed5\u69d8\u306b\u8a18\u8f09\u306eTBW\u3092\u9d5c\u5451\u307f\u306b\u3057\u3066\u88fd\u54c1\u3092\u9078\u5b9a\u3059\u308b\u306e\u306f<strong>\u5371\u967a<\/strong><\/li>\n<\/ul>\n\n\n\n<h2 id=\"outline__5\" class=\"wp-block-heading\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-cyan-blue-color\">TBW\u3068\u306fJEDEC\u304c\u5b9a\u7fa9\u3057\u305f\u3082\u306e<\/mark><\/h2>\n\n\n\n<p>\u3000Terabytes Written (TBW)\u306f\u3001<a rel=\"noreferrer noopener\" href=\"https:\/\/www.jedec.org\/\" target=\"_blank\">JEDEC<\/a>\u304cJESD218<sup>1<\/sup>\u3068\u3044\u3046\u4ed5\u69d8\u3067\u5b9a\u3081\u3066\u3044\u308b\u3082\u306e\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u3000\u305d\u306eJESD218\u306b\u8a18\u8f09\u3055\u308c\u3066\u3044\u308bTBW\u306e\u5b9a\u7fa9\u306f\u4e0b\u56f3\u306e\u901a\u308a\u3067\u3059\u3002\u3053\u308c\u306f\u30012011\u5e748\u6708\u306b\u958b\u50ac\u3055\u308c\u305f<a rel=\"noreferrer noopener\" href=\"https:\/\/flashmemorysummit.com\/\" target=\"_blank\">Flash Memory Summit<\/a>\u3067\u306e\u8b1b\u6f14\u8cc7\u6599<sup>2<\/sup>\u304b\u3089\u5f15\u7528\u3057\u305f\u3082\u306e\u3067\u3059\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/www.hagisol.co.jp\/techblog\/wp-content\/uploads\/2022\/03\/definition-of-tbw-in-jesd218-1024x768.png\" alt=\"\" class=\"wp-image-420\"\/><figcaption class=\"wp-element-caption\"><em>\u56f3\uff1aJESD218\u306b\u304a\u3051\u308bTBW\u306e\u5b9a\u7fa9 <\/em><\/figcaption><\/figure>\n\n\n\n<p>\u3000\u3053\u306e\u6587\u7ae0\u3092\u76f4\u8a33\u3059\u308b\u3068\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u3000SSD\u88fd\u9020\u8005\u306f\u3001\u76ee\u7684\u306e\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u30af\u30e9\u30b9\u7528\u306e\u30ef\u30fc\u30af\u30ed\u30fc\u30c9\u3092\u4f7f\u7528\u3057\u3066\u4ee5\u4e0b\u306e\u6761\u4ef6\u3092\u6e80\u305f\u3057\u306a\u304c\u3089\u30db\u30b9\u30c8\u304cSSD\u306b\u66f8\u304d\u8fbc\u3080\u3053\u3068\u304c\u3067\u304d\u308b\u30b5\u30a4\u30ba\uff08\u30c6\u30e9\u30d0\u30a4\u30c8\uff09\u306e\u6700\u5927\u5024\u3092\u3001SSD\u306e\u8010\u4e45\u6027\u8a55\u4fa1\u7d50\u679c\u3068\u3057\u3066\u793a\u3059\u3053\u3068\u3002<\/p>\n\n\n\n<p>1) SSD\u304c\u5bb9\u91cf\u3092\u7dad\u6301\u3057\u3001<br>2) SSD\u304c\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u30af\u30e9\u30b9\u306b\u8981\u6c42\u3055\u308c\u308b\u30a8\u30e9\u30fc\u7387(Unrecoverable Bit Error Rate: UBER)\u3092\u7dad\u6301\u3057\u3001<br>3) SSD\u304c\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u30af\u30e9\u30b9\u306b\u8981\u6c42\u3055\u308c\u308b\u6a5f\u80fd\u6545\u969c\uff08\u7387\uff09\u3092\u6e80\u305f\u3057\u3001<br>4) SSD\u304c\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u30af\u30e9\u30b9\u3067\u8981\u6c42\u3055\u308c\u308b\u6642\u9593\u3060\u3051\u975e\u901a\u96fb\u3067\u3082\u30c7\u30fc\u30bf\u3092\u4fdd\u6301\u3059\u308b\u3053\u3068<\/p>\n<\/blockquote>\n\n\n\n<p>\u3000\u3053\u306e\u8a18\u8f09\u5185\u5bb9\u306e\u3046\u3061\u30011)\u304b\u30894)\u306e\u6761\u4ef6\u306fSSD\u304c\u30b9\u30c8\u30ec\u30fc\u30b8\u3068\u3057\u3066\u5099\u3048\u308b\u3079\u304d\u57fa\u672c\u7684\u306a\u6a5f\u80fd\u8981\u4ef6\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u3000\u305d\u306e\u305f\u3081\u304b\u3001\u300c<strong>\u30db\u30b9\u30c8\u304cSSD\u306b\u66f8\u304d\u8fbc\u3080\u3053\u3068\u304c\u3067\u304d\u308b\u30b5\u30a4\u30ba\u306e\u6700\u5927\u5024<\/strong>\u300d\u3068\u3044\u3046\u90e8\u5206\u304c\u72ec\u308a\u6b69\u304d\u3057\u3001\u3053\u306eTBW\u304c\u69d8\u3005\u306a\u5834\u9762\u3067SSD\u3092\u6bd4\u8f03\u3059\u308b\u6307\u6a19\u306e\u3072\u3068\u3064\u3068\u3057\u3066\u4f7f\u308f\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u3000\u3053\u308c\u306f\u3001<strong>\u300c\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u30af\u30e9\u30b9\u7528\u306e\u30ef\u30fc\u30af\u30ed\u30fc\u30c9\u3092\u4f7f\u7528\u3057\u3066\u300d\u3068\u3044\u3046\u90e8\u5206\u304c\u8003\u616e\u3055\u308c\u3066\u3044\u306a\u3044\u3053\u3068<\/strong>\u304c\u554f\u984c\u3067\u3059\u3002<strong>\u3053\u306e\u8a18\u8ff0\u306e\u5b58\u5728\u3053\u305d\u304c\u3001TBW\u304c\u30ef\u30fc\u30af\u30ed\u30fc\u30c9\uff08\uff1d\u4f7f\u3044\u304b\u305f\uff09\u306b\u4f9d\u5b58\u3059\u308b\u8a3c\u62e0\u3067\u3059\u3002<\/strong><\/p>\n\n\n\n<p>\u3000\u306a\u304a\u3001\u4e0a\u8a18\u300c\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u30af\u30e9\u30b9\u7528\u306e\u30ef\u30fc\u30af\u30ed\u30fc\u30c9\u300d\u3068\u3057\u3066\u306f\u3001\u901a\u5e38\u3001JEDEC\u304cJESD219<sup>3<\/sup>\u3067\u5b9a\u7fa9\u3057\u305f\u3082\u306e\u304c\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002\u5177\u4f53\u7684\u306b\u306f\u3001\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u30ef\u30fc\u30af\u30ed\u30fc\u30c9\u3068\u30a8\u30f3\u30bf\u30fc\u30d7\u30e9\u30a4\u30ba\u30ef\u30fc\u30af\u30ed\u30fc\u30c9\u306e2\u3064\u3067\u3059\u3002<\/p>\n\n\n\n<h2 id=\"outline__6\" class=\"wp-block-heading\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-cyan-blue-color\">JESD219\u306e\u300c\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u30ef\u30fc\u30af\u30ed\u30fc\u30c9\u300d\u3068\u306f<\/mark><a href=\"https:\/\/qiita.com\/ken-yossy\/items\/27d2cdba22c58e9aa6f2#jesd219%E3%81%AE%E3%82%AF%E3%83%A9%E3%82%A4%E3%82%A2%E3%83%B3%E3%83%88%E3%83%AF%E3%83%BC%E3%82%AF%E3%83%AD%E3%83%BC%E3%83%89%E3%81%A8%E3%81%AF\"><\/a><\/h2>\n\n\n\n<p>\u3000JESD219\u304c\u5b9a\u3081\u308b\u300c\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u30ef\u30fc\u30af\u30ed\u30fc\u30c9\u300d\u3068\u306f\u3001\u300c\u30af\u30e9\u30a4\u30a2\u30f3\u30c8SSD\u300d\u306e\u305f\u3081\u306e\u30ef\u30fc\u30af\u30ed\u30fc\u30c9\u3067\u3059\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/www.hagisol.co.jp\/techblog\/wp-content\/uploads\/2022\/03\/workloads-and-ssd-applications-1024x768.png\" alt=\"\" class=\"wp-image-424\"\/><figcaption class=\"wp-element-caption\"><em>\u56f34\uff1aJESD219\u304c\u5b9a\u3081\u308b\u30ef\u30fc\u30af\u30ed\u30fc\u30c9\u306e\u7a2e\u985e\u3068\u305d\u306e\u7279\u5fb4<sup>2<\/sup><\/em><\/figcaption><\/figure>\n\n\n\n<p>\u3000\u56f3\u306b\u306f\u3001\u30af\u30e9\u30a4\u30a2\u30f3\u30c8SSD\u306e\u30ef\u30fc\u30af\u30ed\u30fc\u30c9\uff08\u56f3\u4e2d\u5de6\u5074\uff09\u3068\u3057\u3066\u3001\u300c\u90317\u65e5\u30011\u65e58\u6642\u9593\u7a3c\u50cd\u300d\u300c\u30d0\u30fc\u30b9\u30c8\u7684\u306b\u767a\u751f\u3059\u308b\u30ef\u30fc\u30af\u30ed\u30fc\u30c9\u3067\u3001\u4f11\u606f\u6642\u9593\uff08\u30db\u30b9\u30c8\u304b\u3089SSD\u3078\u30a2\u30af\u30bb\u30b9\u304c\u306a\u3044\u6642\u9593\uff09\u304c\u304b\u306a\u308a\u9577\u3044\u300d\u300c\u66f8\u304d\u8fbc\u307f\u306f\u5c11\u306a\u3044\u300d\u300cLBA\u7a7a\u9593\u5168\u4f53\u306b\u5360\u3081\u308b\u30a2\u30af\u30bb\u30b9\u9818\u57df\uff08\u30d5\u30c3\u30c8\u30d7\u30ea\u30f3\u30c8\uff09\u304c\u3068\u3066\u3082\u5c40\u6240\u7684\u300d\u300c\u30b3\u30b9\u30c8\u6700\u9069\u5316\u3055\u308c\u3066\u3044\u308b\u300d\u3068\u8a18\u8f09\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u3000\u3053\u308c\u3089\u306e\u7279\u5fb4\u306f\u3059\u3079\u3066\u3001\u3044\u308f\u3086\u308b\u30aa\u30d5\u30a3\u30b9\u3084\u5bb6\u5ead\u5229\u7528\u306ePC\u306b\u642d\u8f09\u3055\u308c\u308bSSD\u3001\u7279\u306b\u3001OS\u304c\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3055\u308c\u305f\u30b7\u30b9\u30c6\u30e0\u30c9\u30e9\u30a4\u30d6\u3092\u60f3\u5b9a\u3057\u305f\u3082\u306e\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u3000\u3057\u305f\u304c\u3063\u3066\u3001<strong>JESD219\u306e\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u30ef\u30fc\u30af\u30ed\u30fc\u30c9\u3092\u7528\u3044\u3066\u7b97\u51fa\u3057\u305fTBW\u306f\u3001\u30aa\u30d5\u30a3\u30b9\u30fb\u5bb6\u5ead\u5229\u7528PC\u5411\u3051SSD\u3001\u7279\u306bOS\u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3059\u308b\u30b7\u30b9\u30c6\u30e0\u30c9\u30e9\u30a4\u30d6\u306e\u9078\u5b9a\u6642\u306b\u4f7f\u7528\u3067\u304d\u308b\u5024<\/strong>\u306a\u306e\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u3000JESD219\u306e\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u30ef\u30fc\u30af\u30ed\u30fc\u30c9\u3092\u7528\u3044\u3066\u7b97\u51fa\u3057\u305fTBW\u304c\u53c2\u8003\u306b\u306a\u308b\u4f7f\u3044\u304b\u305f\u3068\u53c2\u8003\u306b\u306a\u3089\u306a\u3044\u4f7f\u3044\u304b\u305f\u306e\u4f8b\u3092\u6319\u3052\u308b\u3068\u4ee5\u4e0b\u306e\u8868\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" src=\"https:\/\/www.hagisol.co.jp\/techblog\/wp-content\/uploads\/2022\/02\/suitable-and-unsuitable-usage-of-tbw-derived-from-client-workload-2.png\" alt=\"\" class=\"wp-image-520\"\/><figcaption class=\"wp-element-caption\"><em>\u8868\uff1aJESD219\u306e\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u30ef\u30fc\u30af\u30ed\u30fc\u30c9\u3067\u7b97\u51fa\u3057\u305fTBW\u304c\u53c2\u8003\u306b\u306a\u308b\u4f7f\u3044\u304b\u305f\u3068\u53c2\u8003\u306b\u306a\u3089\u306a\u3044\u4f7f\u3044\u304b\u305f\u306e\u4f8b<\/em><\/figcaption><\/figure>\n<\/div>\n<\/div>\n\n\n\n<h2 id=\"outline__7\" class=\"wp-block-heading\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-cyan-blue-color\">\u304a\u308f\u308a\u306b<\/mark><\/h2>\n\n\n\n<p>\u3000TBW\u306e\u6570\u5024\u306f\u88fd\u54c1\u306e\u6bd4\u8f03\u306b\u4f7f\u7528\u3057\u3084\u3059\u3044\u3082\u306e\u306e\u3001\u7b97\u51fa\u306b\u4f7f\u7528\u3057\u305f\u30ef\u30fc\u30af\u30ed\u30fc\u30c9\u3068\u5b9f\u4f7f\u7528\u6642\u306e\u30ef\u30fc\u30af\u30ed\u30fc\u30c9\u304c\u4e00\u81f4\u3057\u306a\u3044\u5834\u5408\u306b\u306f\u7684\u5916\u308c\u306a\u6bd4\u8f03\u3068\u306a\u308a\u3001\u8981\u4ef6\u3092\u6e80\u305f\u3055\u306a\u3044\u9078\u629e\u306b\u306a\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u3000\u6b21\u306e\u8a18\u4e8b\u3067\u306f\u3001TBW\u304c\u30ef\u30fc\u30af\u30ed\u30fc\u30c9\u306b\u4f9d\u5b58\u3059\u308b\u7406\u7531\u3001\u304a\u3088\u3073TBW\u306e\u5927\u5c0f\u3092\u5de6\u53f3\u3059\u308b\u8981\u7d20\u3001\u306a\u3069\u3092\u8aac\u660e\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h2 id=\"outline__8\" class=\"wp-block-heading\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-cyan-blue-color\">\u30ea\u30d5\u30a1\u30ec\u30f3\u30b9<\/mark><\/h2>\n\n\n\n<ol class=\"wp-block-list\">\n<li>JEDEC, <em>\u201cSolid-State Drive (SSD) Requirements and Endurance Test Method\u201d<\/em>, JESD218B.01, March, 2016<\/li>\n\n\n\n<li>Alvin Cox,&nbsp;<em>\u201cJEDEC SSD Endurance Workloads\u201d<\/em>, Flash Memory Summit 2011, Santa Clara, CA, August, 2011<\/li>\n\n\n\n<li>JEDEC,&nbsp;<em>\u201cSolid-State Drive (SSD) Endurance Workloads\u201d<\/em>, JESD219A, July, 2012<\/li>\n<\/ol>\n\n\n\n<p 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href=\"https:\/\/qiita.com\/ken-yossy\/items\/27d2cdba22c58e9aa6f2#tbw%E3%81%A8%E3%81%AFjedec%E3%81%8C%E5%AE%9A%E7%BE%A9%E3%81%97%E3%81%9F%E3%82%82%E3%81%AE\"><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>SSD\u306e\u30b9\u30da\u30c3\u30af\u3067\u3088\u304f\u898b\u308bTBW\u3002TBW\u306e\u5024\u306f\u300cSSD\u306e\u4f7f\u3044\u304b\u305f\u300d\u306b\u4f9d\u5b58\u3057\u307e\u3059\u3002TBW\u3092\u6b63\u3057\u304f\u7406\u89e3\u3057\u3066\u5229\u7528\u3059\u308b\u305f\u3081\u306e\u30dd\u30a4\u30f3\u30c8\u3092\u3054\u8aac\u660e\u3057\u307e\u3059\u3002<\/p>\n","protected":false},"author":4,"featured_media":504,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[23,24,35],"class_list":["post-359","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-durability","tag-nvme-ssd","tag-sata-ssd","tag-35"],"_links":{"self":[{"href":"https:\/\/www.hagisol.co.jp\/techblog\/index.php?rest_route=\/wp\/v2\/posts\/359","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.hagisol.co.jp\/techblog\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.hagisol.co.jp\/techblog\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.hagisol.co.jp\/techblog\/index.php?rest_route=\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/www.hagisol.co.jp\/techblog\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=359"}],"version-history":[{"count":48,"href":"https:\/\/www.hagisol.co.jp\/techblog\/index.php?rest_route=\/wp\/v2\/posts\/359\/revisions"}],"predecessor-version":[{"id":4207,"href":"https:\/\/www.hagisol.co.jp\/techblog\/index.php?rest_route=\/wp\/v2\/posts\/359\/revisions\/4207"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.hagisol.co.jp\/techblog\/index.php?rest_route=\/wp\/v2\/media\/504"}],"wp:attachment":[{"href":"https:\/\/www.hagisol.co.jp\/techblog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=359"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.hagisol.co.jp\/techblog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=359"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.hagisol.co.jp\/techblog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=359"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}