{"id":4704,"date":"2025-03-03T09:00:00","date_gmt":"2025-03-03T00:00:00","guid":{"rendered":"https:\/\/testhagisolcojp.gptw.net\/techblog\/?p=4704"},"modified":"2025-02-27T15:54:12","modified_gmt":"2025-02-27T06:54:12","slug":"post-4704","status":"publish","type":"post","link":"https:\/\/testhagisolcojp.gptw.net\/techblog\/?p=4704","title":{"rendered":"DRAM\u30ec\u30b9SSD\u3068\u4e0a\u624b\u306b\u3064\u304d\u3042\u3046\u65b9\u6cd5(1\/2)"},"content":{"rendered":"\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/testhagisolcojp.gptw.net\/techblog\/wp-content\/uploads\/2024\/12\/AdobeStock_954870647-1024x683.jpeg\" alt=\"\" class=\"wp-image-4726\"\/><\/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\">\u304a\u3053\u3068\u308f\u308a<\/mark><\/h2>\n\n\n\n<p>\u3000\u3053\u306e\u8a18\u4e8b\u306f\u3001<a href=\"https:\/\/qiita.com\/ken-yossy\/items\/77d0203aacd9cef0590b\">2023\u5e7411\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__2\" 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>\u3000DRAM\u3092\u642d\u8f09\u3057\u306a\u3044SSD\u3001\u3044\u308f\u3086\u308b\u300cDRAM\u30ec\u30b9SSD\u300d\u304c\u5897\u3048\u307e\u3057\u305f\u3002\u79c1\u305f\u3061\u4e00\u822c\u6d88\u8cbb\u8005\u304c\u5e97\u982d\u3067\u8cfc\u5165\u3067\u304d\u308b\u88fd\u54c1\u3067\u306f\u3001\u6982\u306d\u3001\u9ad8\u3044\u6027\u80fd\u3092\u8ffd\u6c42\u3059\u308b\u88fd\u54c1\u306fDRAM\u3092\u642d\u8f09\u3057\u3001\u30b3\u30b9\u30c8\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u8ffd\u6c42\u3059\u308b\u88fd\u54c1\u306fDRAM\u3092\u642d\u8f09\u3057\u306a\u3044\u3001\u306e\u3088\u3046\u306a\u3059\u307f\u308f\u3051\u304c\u306a\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u3000\u305d\u306eDRAM\u30ec\u30b9SSD\u3067\u306f\u3001NVM Express (NVMe)\u304c\u898f\u5b9a\u3059\u308bHost Memory Buffer (HMB)\u3068\u3044\u3046\u6a5f\u80fd<sup>[1]<\/sup>\u3092\u5229\u7528\u3057\u30db\u30b9\u30c8\u30b7\u30b9\u30c6\u30e0\u306eDRAM\u306e\u4e00\u90e8\u3092SSD\u7528\u306b\u5272\u308a\u5f53\u3066\u3066\u3082\u3089\u3046\u3053\u3068\u3067\u3001DRAM\u975e\u642d\u8f09\u306b\u3088\u308b\u30c7\u30e1\u30ea\u30c3\u30c8\u3092\u7de9\u548c\u3057\u3066\u3044\u308b\u88fd\u54c1\u3082\u3042\u308a\u307e\u3059<sup>[2]<\/sup>\u3002<\/p>\n\n\n\n<p>\u3000SSD\u306b\u304a\u3051\u308bDRAM\u6709\u7121\u306e\u30e1\u30ea\u30c3\u30c8\u3068\u30c7\u30e1\u30ea\u30c3\u30c8\u3092\u8aac\u660e\u3059\u308bWeb\u30da\u30fc\u30b8\u306f\u65e2\u306b\u591a\u6570\u5b58\u5728\u3057\u307e\u3059\u306e\u3067\u3001\u3053\u3053\u3067\u306f4\u3064\u306e\u300cDRAM\u30ec\u30b9SSD\u3092\u4e0a\u624b\u304f\u4f7f\u3046\u65b9\u6cd5\u300d\u3092\u30012\u3064\u305a\u30642\u56de\u306b\u5206\u3051\u3066\u307e\u3068\u3081\u307e\u3059\u3002\u7d50\u8ad6\u304b\u3089\u3044\u3046\u3068\u3001\u300c\u5178\u578b\u7684\u306a\u30d1\u30fc\u30bd\u30ca\u30eb\u30e6\u30fc\u30b9\u306e\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u5411\u3051\u306e\u30b9\u30c8\u30ec\u30fc\u30b8\u300d\u306e\u4f7f\u3044\u304b\u305f\u3067\u3042\u308c\u3070\u3001\u305f\u3044\u3066\u3044\u306e\u5834\u5408\u3001DRAM\u30ec\u30b9SSD\u3092\u4e0a\u624b\u304f\u6d3b\u7528\u3067\u304d\u307e\u3059\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\">\u307e\u3068\u3081<\/mark><\/h2>\n\n\n\n<p>\u3000DRAM\u30ec\u30b9SSD\u3092\u3088\u308a\u826f\u304f\u4f7f\u3046\u306b\u306f\u3001\u4ee5\u4e0b\u306e\u30dd\u30a4\u30f3\u30c8\u3092\u610f\u8b58\u3059\u308b\u3068\u826f\u3044\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u305d\u306e1\uff1a\u5927\u304d\u3044\u30b5\u30a4\u30ba\u3082\u3057\u304f\u306f\u30b7\u30fc\u30b1\u30f3\u30b7\u30e3\u30eb\u306b\u30a2\u30af\u30bb\u30b9\u3059\u308b<\/li>\n\n\n\n<li>\u305d\u306e2\uff1a\u7a7a\u304d\u5bb9\u91cf\u3092\u591a\u304f\u3059\u308b<\/li>\n<\/ul>\n\n\n\n<h2 id=\"outline__4\" class=\"wp-block-heading\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-cyan-blue-color\">\u305d\u306e1\uff1a\u5927\u304d\u3044\u30b5\u30a4\u30ba\u3082\u3057\u304f\u306f\u30b7\u30fc\u30b1\u30f3\u30b7\u30e3\u30eb\u306b\u30a2\u30af\u30bb\u30b9\u3059\u308b<\/mark><\/strong><\/h2>\n\n\n\n<p>\u3000SSD\u306f\u3001DRAM\u306e\u6709\u7121\u306b\u304b\u304b\u308f\u3089\u305a\u5c0f\u3055\u3044\u30b5\u30a4\u30ba\u306e\u30e9\u30f3\u30c0\u30e0\u30a2\u30af\u30bb\u30b9\u3088\u308a\u3082\u5927\u304d\u3044\u30b5\u30a4\u30ba\u306e\u30b7\u30fc\u30b1\u30f3\u30b7\u30e3\u30eb\u30a2\u30af\u30bb\u30b9\u306e\u307b\u3046\u304c\u5f97\u610f\u3067\u3042\u308a\u3001DRAM\u30ec\u30b9SSD\u306f\u7279\u306b\u3053\u306e\u50be\u5411\u304c\u5f37\u304f\u306a\u308a\u307e\u3059\u3002\u3053\u308c\u306fSSD\u306e\u5185\u90e8\u51e6\u7406\u306b\u7531\u6765\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u3000\u4e00\u822c\u7684\u306a\u30b7\u30b9\u30c6\u30e0\u3067\u306f\u3001\u30db\u30b9\u30c8\u306fSSD\u306b\u5bfe\u3057\u3066\u300c\u3069\u306e\u30c7\u30fc\u30bf\u3092\u8aad\u307f\u66f8\u304d\u3057\u305f\u3044\u306e\u304b\u300d\u3068\u3044\u3046\u3053\u3068\u3092\u5148\u982d\u30a2\u30c9\u30ec\u30b9(Logical Block Address: LBA)\u3068\u305d\u306e\u5148\u982d\u30a2\u30c9\u30ec\u30b9\u304b\u3089\u306e\u30c7\u30fc\u30bf\u30b5\u30a4\u30ba\uff08\u30bb\u30af\u30bf\u6570\uff09\u3067\u6307\u5b9a\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u3000\u3059\u308b\u3068SSD\u306f\u3001\u30db\u30b9\u30c8\u304b\u3089\u30b3\u30de\u30f3\u30c9\u3092\u53d7\u4fe1\u3057\u305f\u969b\u306b\u300cSSD\uff08\u4e3b\u306bNAND\u30d5\u30e9\u30c3\u30b7\u30e5\u30e1\u30e2\u30ea\uff09\u306e\u3069\u3053\u306b\u3069\u306eLBA\u306e\u30c7\u30fc\u30bf\u304c\u8a18\u9332\u3055\u308c\u3066\u3044\u308b\u304b\u300d\u3068\u3044\u3046\u30c6\u30fc\u30d6\u30eb\u3001\u3044\u308f\u3086\u308b\u300c\u4f4f\u6240\u9332\u300d\u3092\u53c2\u7167\u3057\u307e\u3059\u3002\u3053\u306e\u4f4f\u6240\u9332\u306e\u3053\u3068\u306f\u3088\u304f\u300c\u30de\u30c3\u30d4\u30f3\u30b0\u30c6\u30fc\u30d6\u30eb\u300d\u3068\u547c\u3070\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u3000\u3053\u306e\u30de\u30c3\u30d4\u30f3\u30b0\u30c6\u30fc\u30d6\u30eb\u306f\u5c11\u306a\u304f\u3068\u3082SSD\u306e\u96fb\u6e90\u304c\u5207\u308c\u3066\u3044\u308b\u6642\u306fNAND\u30d5\u30e9\u30c3\u30b7\u30e5\u30e1\u30e2\u30ea\u306b\u8a18\u9332\u3055\u308c\u3066\u3044\u307e\u3059\u306e\u3067\u3001SSD\u306e\u8d77\u52d5\u6642\u306a\u3069\u306b\u3053\u306e\u30de\u30c3\u30d4\u30f3\u30b0\u30c6\u30fc\u30d6\u30eb\u5168\u4f53\u3092\u8aad\u307f\u51fa\u3055\u306a\u3044\u9650\u308a\u3001\u30db\u30b9\u30c8\u304b\u3089\u30b3\u30de\u30f3\u30c9\u3092\u53d7\u4fe1\u3059\u308b\u5ea6\u306bNAND\u30d5\u30e9\u30c3\u30b7\u30e5\u30e1\u30e2\u30ea\u304b\u3089\u5fc5\u8981\u306a\u30de\u30c3\u30d4\u30f3\u30b0\u30c6\u30fc\u30d6\u30eb\u3092\u8aad\u307f\u51fa\u3059\u6642\u9593\u304c\u304b\u304b\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u3000\u56f31\u306f\u3001NVMe SSD\u306b\u304a\u3051\u308b\u3001DRAM\u6709\u7121\u306b\u3088\u308b\u30de\u30c3\u30d4\u30f3\u30b0\u30c6\u30fc\u30d6\u30eb\u53c2\u7167\u51e6\u7406\u306e\u9055\u3044\u3092\u793a\u3057\u305f\u30a4\u30e1\u30fc\u30b8\u56f3\u3067\u3059\u3002\u3053\u306e\u56f31\u306fNVMe SSD\u306e\u5834\u5408\u3067\u3059\u304c\u3001SATA SSD\u306e\u5834\u5408\u3067\u3082(2-C)\u306e\u30d1\u30bf\u30fc\u30f3\u304c\u5b58\u5728\u3057\u306a\u3044\u3060\u3051\u3067\u4ed6\u306e\u90e8\u5206\u306f\u540c\u3058\u3067\u3059\u3002<\/p>\n\n\n\n<p><\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/testhagisolcojp.gptw.net\/techblog\/wp-content\/uploads\/2024\/12\/map-access-with-and-without-dram-nvme-en-1024x396.png\" alt=\"\" class=\"wp-image-4724\"\/><figcaption class=\"wp-element-caption\"><em>\u56f31\uff1aDRAM\u6709\u7121\u306b\u3088\u308b\u30b3\u30de\u30f3\u30c9\u51e6\u7406\u6642\u306e\u30de\u30c3\u30d4\u30f3\u30b0\u30c6\u30fc\u30d6\u30eb\u53c2\u7167\u51e6\u7406\u306e\u9055\u3044\uff08NVMe SSD\u3067\u306e\u30a4\u30e1\u30fc\u30b8\uff09<\/em><\/figcaption><\/figure>\n\n\n\n<p>\u3000\u30b5\u30a4\u30ba\u306e\u5927\u304d\u3044\u30a2\u30af\u30bb\u30b9\u3082\u3057\u304f\u306f\u30b7\u30fc\u30b1\u30f3\u30b7\u30e3\u30eb\u30a2\u30af\u30bb\u30b9\u3067\u3042\u308c\u3070\u3001\u8aad\u307f\u51fa\u3057\u305f\u30de\u30c3\u30d4\u30f3\u30b0\u30c6\u30fc\u30d6\u30eb\u3092\u52b9\u7387\u826f\u304f\u4f7f\u7528\u3067\u304d\u307e\u3059\u3002\u4f4f\u6240\u9332\u306e1\u30da\u30fc\u30b8\u30921\u56de\u306b\u8aad\u307f\u51fa\u3057\u53ef\u80fd\u306a\u30de\u30c3\u30d4\u30f3\u30b0\u30c6\u30fc\u30d6\u30eb\u306b\u4f8b\u3048\u308b\u3068\u3001\u30b5\u30a4\u30ba\u306e\u5927\u304d\u3044\u30a2\u30af\u30bb\u30b9\u3082\u3057\u304f\u306f\u30b7\u30fc\u30b1\u30f3\u30b7\u30e3\u30eb\u30a2\u30af\u30bb\u30b9\u3067\u3042\u308c\u3070\u3001\u4f4f\u6240\u93321\u30da\u30fc\u30b8\u3067\u305d\u306e\u30a2\u30af\u30bb\u30b9\u306e\u5927\u534a\u3092\u30ab\u30d0\u30fc\u3067\u304d\u308b\u53ef\u80fd\u6027\u304c\u9ad8\u3044\u304b\u3089\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u3000\u9006\u306b\u3001\u30b5\u30a4\u30ba\u304c\u5c0f\u3055\u3044\u3082\u3057\u304f\u306f\u30e9\u30f3\u30c0\u30e0\u30a2\u30af\u30bb\u30b9\u306e\u5834\u5408\u3001\u4f55\u5ea6\u3082\u4f4f\u6240\u9332\u306e\u30da\u30fc\u30b8\u3092\u3081\u304f\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u30de\u30c3\u30d4\u30f3\u30b0\u30c6\u30fc\u30d6\u30eb\u3092\u7f6e\u304f\u305f\u3081\u306eDRAM\u3092\u5099\u3048\u305d\u306e\u5bb9\u91cf\u304c\u5341\u5206\u3067\u3042\u308c\u3070\u300c\u4f4f\u6240\u9332\u306e\u30da\u30fc\u30b8\u3092\u3081\u304f\u308b\u300d\u51e6\u7406\u306fDRAM\u30a2\u30af\u30bb\u30b9\u306e\u307f\u3067\u6e08\u307f\u307e\u3059\u304c\u3001\u305d\u3046\u3067\u306a\u3044\u5834\u5408\u3001NAND\u30d5\u30e9\u30c3\u30b7\u30e5\u30e1\u30e2\u30ea\u304b\u3089\u30de\u30c3\u30d4\u30f3\u30b0\u30c6\u30fc\u30d6\u30eb\u3092\u8aad\u307f\u51fa\u3059\u56de\u6570\u304c\u5897\u3048\u307e\u3059\u3002\u305d\u306e\u7d50\u679c\u3001\u30a2\u30af\u30bb\u30b9\u6027\u80fd\u304c\u4f4e\u4e0b\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u3000\u300c\u3069\u306eLBA\u306b\u3069\u306e\u30c7\u30fc\u30bf\u3092\u66f8\u304d\u8fbc\u3080\u304b\u300d\u306f\u3001\u901a\u5e38OS\uff08\u30d5\u30a1\u30a4\u30eb\u30b7\u30b9\u30c6\u30e0\uff09\u304c\u6c7a\u5b9a\u3057\u3066\u7ba1\u7406\u3059\u308b\u305f\u3081\u30e6\u30fc\u30b6\u306f\u6c7a\u3081\u3089\u308c\u307e\u305b\u3093\u3002\u3053\u306e\u305f\u3081\u30e6\u30fc\u30b6\u3068\u3057\u3066\u306f\u8aad\u307f\u66f8\u304d\u3059\u308b\u30d5\u30a1\u30a4\u30eb\u306e\u30b5\u30a4\u30ba\u3092\u3067\u304d\u308b\u3060\u3051\u5927\u304d\u304f\u3059\u308b\u3053\u3068\u304c\u671b\u307e\u3057\u3044\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u3000\u3053\u308c\u306b\u5bfe\u3057\u3001\u7d44\u307f\u8fbc\u307f\u7cfb\u30b7\u30b9\u30c6\u30e0\u306a\u3069\u3067SSD\u5185\u3067\u306e\u30c7\u30fc\u30bf\u8a18\u9332\u4f4d\u7f6e\u3092\u3042\u308b\u7a0b\u5ea6\u81ea\u7531\u306b\u8a2d\u8a08\u3067\u304d\u308b\u5834\u5408\u3001SSD\u3078\u306e\u30a2\u30af\u30bb\u30b9\u304c\u30b7\u30fc\u30b1\u30f3\u30b7\u30e3\u30eb\u306b\u306a\u308b\u3088\u3046\u306b\u8a2d\u8a08\u3059\u308b\u3068\u3001DRAM\u30ec\u30b9SSD\u4f7f\u7528\u6642\u306e\u30a2\u30af\u30bb\u30b9\u6027\u80fd\u306e\u6539\u5584\u3084\u5b89\u5b9a\u306b\u3064\u306a\u304c\u308a\u307e\u3059\u3002<\/p>\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\">\u305d\u306e2\uff1a\u7a7a\u304d\u5bb9\u91cf\u3092\u591a\u304f\u3059\u308b<\/mark><\/h2>\n\n\n\n<p>\u3000\u3053\u308c\u306fGarbage Collection (GC)\u306e\u767a\u751f\u983b\u5ea6\u3092\u6291\u3048\u3001\u307e\u305fGC\u306e\u51e6\u7406\u6642\u9593\u3092\u77ed\u7e2e\u3059\u308b\u305f\u3081\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u3000GC\u306f\u3001\u300c\u30c7\u30fc\u30bf\u3092\u8aad\u307f\u66f8\u304d\u3059\u308b\u300d\u3068\u3044\u3046\u30b9\u30c8\u30ec\u30fc\u30b8\u3068\u3057\u3066\u6700\u4f4e\u9650\u306e\u6a5f\u80fd\u3092\u7dad\u6301\u3059\u308b\u305f\u3081\u306b\u5fc5\u8981\u4e0d\u53ef\u6b20\u306a\u3001NAND\u30d5\u30e9\u30c3\u30b7\u30e5\u30e1\u30e2\u30ea\u306e\u4f7f\u7528\u52b9\u7387\u3092\u6539\u5584\u3057\u3066\u7a7a\u304d\u30d6\u30ed\u30c3\u30af\u3092\u4f5c\u308a\u51fa\u3059\u51e6\u7406\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u3000\u3057\u304b\u3057\u3001GC\u306f\u300cNAND\u30d5\u30e9\u30c3\u30b7\u30e5\u30e1\u30e2\u30ea\u304b\u3089\u30c7\u30fc\u30bf\u3092\u8aad\u307f\u51fa\u3057\u3066\u305d\u306e\u30c7\u30fc\u30bf\u3092NAND\u30d5\u30e9\u30c3\u30b7\u30e5\u30e1\u30e2\u30ea\u306e\u5225\u306e\u5834\u6240\u306b\u66f8\u304d\u8fbc\u3080\u300d\u3068\u3044\u3046\u51e6\u7406\uff08\u30b3\u30d4\u30fc\u51e6\u7406\uff09\u3067\u3059\u3002\u3053\u306e\u300c\u30b3\u30d4\u30fc\u306e\u305f\u3081\u306b\u8aad\u307f\u51fa\u3057\u305f\u30c7\u30fc\u30bf\u300d\u3092\u4e00\u6642\u7684\u306b\u7f6e\u3044\u3066\u304a\u304f\u5834\u6240\u304c\u5e83\u3051\u308c\u3070\u5e83\u3044\u307b\u3069\u3053\u306eGC\u306e\u51e6\u7406\u52b9\u7387\u306f\u9ad8\u304f\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u3000\u9ad8\u3044\u6027\u80fd\u3092\u5b9f\u73fe\u3059\u308b\u306b\u306f\u3053\u306e\u7f6e\u304d\u5834\u306bRAM\uff08SRAM\u3084DRAM\uff09\u3092\u4f7f\u3046\u3079\u304d\u3067\u3059\u304c\u3001DRAM\u30ec\u30b9SSD\u3067\u306f\u5c11\u306a\u3044RAM\u3092\u3084\u308a\u304f\u308a\u3057\u3066\u30b3\u30d4\u30fc\u3059\u308b\u30c7\u30fc\u30bf\u306e\u8aad\u307f\u51fa\u3057\u3068\u66f8\u304d\u8fbc\u307f\u3092\u3057\u306a\u3051\u308c\u3070\u306a\u308a\u307e\u305b\u3093\u3002<\/p>\n\n\n\n<p>\u3000\u3053\u306e\u4e0d\u5229\u306a\u72b6\u6cc1\u3092\u3067\u304d\u308b\u3060\u3051\u4f5c\u3089\u306a\u3044\u305f\u3081\u306b\u300c\u3067\u304d\u308b\u3060\u3051GC\u304c\u767a\u751f\u3057\u306a\u3044\u3088\u3046\u306b\u3059\u308b\u300d\u3053\u3068\u3001\u307e\u305f\u5f71\u97ff\u3092\u7de9\u548c\u3059\u308b\u305f\u3081\u306b\u300c\u30b3\u30d4\u30fc\u3059\u308b\u30c7\u30fc\u30bf\u306e\u30b5\u30a4\u30ba\u3092\u5c11\u306a\u304f\u3059\u308b\u300d\u3053\u3068\u3001\u306e2\u3064\u304c\u6709\u52b9\u3067\u3042\u308a\u3001SSD\u306e\u7a7a\u304d\u5bb9\u91cf\u3092\u591a\u304f\u4fdd\u3064\u3053\u3068\u3067\u3053\u306e2\u3064\u3092\u5b9f\u73fe\u53ef\u80fd\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\">\u304a\u308f\u308a\u306b<\/mark><\/h2>\n\n\n\n<p>\u3000\u4eca\u56de\u306e\u8a18\u4e8b\u3067\u306f\u3001\u300cDRAM\u30ec\u30b9SSD\u3092\u4e0a\u624b\u304f\u4f7f\u3046\u65b9\u6cd5\u300d\u30922\u70b9\u8aac\u660e\u3057\u307e\u3057\u305f\u3002<\/p>\n\n\n\n<p>\u3000SSD\u306f\u4f7f\u3044\u304b\u305f\u306b\u5fdc\u3058\u3066\u6027\u80fd\u3084\u5bff\u547d\u304c\u5909\u308f\u308b\u30c7\u30d0\u30a4\u30b9\u3067\u3059\u306e\u3067\u3001DRAM\u30ec\u30b9SSD\u306e\u6d3b\u7528\u306b\u306f\u300cDRAM\u30ec\u30b9SSD\u304c\u9069\u3057\u305f\u4f7f\u3044\u304b\u305f\u300d\u3092\u7406\u89e3\u3057\u3066\u81ea\u5206\u306e\u4f7f\u3044\u304b\u305f\u304c\u3053\u308c\u306b\u5f53\u3066\u306f\u307e\u308b\u304b\u3069\u3046\u304b\u3067\u5224\u65ad\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u3000\u5bb6\u5ead\u3084\u30aa\u30d5\u30a3\u30b9\u3067\u4f7f\u7528\u3059\u308b\u5178\u578b\u7684\u306a\u30d1\u30bd\u30b3\u30f3\u5411\u3051\u306e\u30b9\u30c8\u30ec\u30fc\u30b8\u3067\u3042\u308c\u3070\u3001\u305f\u3044\u3066\u3044\u306e\u5834\u5408DRAM\u30ec\u30b9SSD\u3092\u6d3b\u7528\u53ef\u80fd\u3067\u3059\u3002\u9006\u306b\u305d\u308c\u3068\u306f\u7570\u306a\u308b\u4f7f\u3044\u304b\u305f\u3001\u4f8b\u3048\u307024\u6642\u9593365\u65e5\u7a3c\u50cd\u3059\u308b\u6a5f\u5668\u3084\u904e\u9177\u306a\u74b0\u5883\u3067\u52d5\u4f5c\u3059\u308b\u6a5f\u5668\u3001\u3055\u3089\u306b\u306f\u7279\u6b8a\u306a\u8981\u4ef6\u3092\u6301\u3064\u6a5f\u5668\u5411\u3051\u306e\u30b9\u30c8\u30ec\u30fc\u30b8\u306e\u5834\u5408\u306f\u3001DRAM\u30ec\u30b9SSD\u306e\u7279\u5fb4\u3092\u826f\u304f\u7406\u89e3\u3057\u3066\u9078\u5b9a\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u3000\u6b21\u56de\u306f\u6b8b\u308a\u306e2\u70b9\u3092\u8aac\u660e\u3057\u307e\u3059\u3002<\/p>\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\">References<\/mark><\/h2>\n\n\n\n<p>[1] \u30ad\u30aa\u30af\u30b7\u30a2\u3001\u300c<a href=\"https:\/\/www.kioxia.com\/ja-jp\/rd\/technology\/topics\/topics-14.html\" target=\"_blank\" rel=\"noreferrer noopener\"><em>HMB(Host Memory Buffer)<\/em><em>\u6280\u8853\u958b\u767a\u3068DRAM<\/em><em>\u30ec\u30b9SSD<\/em><em>\u306e\u5b9f\u73fe<\/em><\/a>\u300d\u30012018\u5e748\u670828\u65e5\uff082024\u5e7412\u670816\u65e5\u95b2\u89a7\uff09<br>[2] Fixstars Tech Blog \/proc\/cpuinfo\u3001\u300c<a href=\"https:\/\/proc-cpuinfo.fixstars.com\/2018\/06\/nvme-hmb\/\" target=\"_blank\" rel=\"noreferrer noopener\"><em>NVMe HMB<\/em><em>\u6a5f\u80fd\u3092\u4f7f\u3063\u3066\u307f\u305f<\/em><\/a>\u300d\u30012018\u5e746\u670828\u65e5\uff082024\u5e7412\u670816\u65e5\u95b2\u89a7\uff09<\/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\">\u4ed6\u793e\u5546\u6a19\u306b\u3064\u3044\u3066<\/mark><\/h2>\n\n\n\n<p>\u3000\u8a18\u4e8b\u4e2d\u306b\u306f\u767b\u9332\u5546\u6a19\u30de\u30fc\u30af\u3092\u660e\u8a18\u3057\u3066\u304a\u308a\u307e\u305b\u3093\u304c\u3001\u8a18\u4e8b\u306b\u63b2\u8f09\u3055\u308c\u3066\u3044\u308b\u4f1a\u793e\u540d\u304a\u3088\u3073\u88fd\u54c1\u540d\u7b49\u306f\u4e00\u822c\u306b\u5404\u793e\u306e\u5546\u6a19\u307e\u305f\u306f\u767b\u9332\u5546\u6a19\u3067\u3059\u3002<\/p>\n\n\n\n<h2 id=\"outline__9\" class=\"wp-block-heading\" id=\"outline__9\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-cyan-blue-color\">\u8a18\u4e8b\u5185\u5bb9\u306b\u3064\u3044\u3066<\/mark><\/h2>\n\n\n\n<p>\u3000\u3053\u306e\u8a18\u4e8b\u306e\u5185\u5bb9\u306f\u3001\u767a\u8868\u5f53\u6642\u306e\u60c5\u5831\u3067\u3059\u3002\u4e88\u544a\u306a\u304f\u5909\u66f4\u3055\u308c\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u306e\u3067\u3001\u3042\u3089\u304b\u3058\u3081\u3054\u4e86\u627f\u304f\u3060\u3055\u3044\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001DRAM\u30ec\u30b9SSD\u3092\u4e0a\u624b\u306b\u4f7f\u3046\u65b9\u6cd5\u30922\u70b9\u7d39\u4ecb\u3057\u307e\u3059\u3002<\/p>\n","protected":false},"author":4,"featured_media":4726,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[13,15],"tags":[23,24,35],"class_list":["post-4704","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-reliability","category-stability","tag-nvme-ssd","tag-sata-ssd","tag-35"],"_links":{"self":[{"href":"https:\/\/testhagisolcojp.gptw.net\/techblog\/index.php?rest_route=\/wp\/v2\/posts\/4704","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/testhagisolcojp.gptw.net\/techblog\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/testhagisolcojp.gptw.net\/techblog\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/testhagisolcojp.gptw.net\/techblog\/index.php?rest_route=\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/testhagisolcojp.gptw.net\/techblog\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=4704"}],"version-history":[{"count":25,"href":"https:\/\/testhagisolcojp.gptw.net\/techblog\/index.php?rest_route=\/wp\/v2\/posts\/4704\/revisions"}],"predecessor-version":[{"id":4883,"href":"https:\/\/testhagisolcojp.gptw.net\/techblog\/index.php?rest_route=\/wp\/v2\/posts\/4704\/revisions\/4883"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/testhagisolcojp.gptw.net\/techblog\/index.php?rest_route=\/wp\/v2\/media\/4726"}],"wp:attachment":[{"href":"https:\/\/testhagisolcojp.gptw.net\/techblog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=4704"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/testhagisolcojp.gptw.net\/techblog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=4704"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/testhagisolcojp.gptw.net\/techblog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=4704"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}