{"id":2297,"date":"2015-02-14T22:56:06","date_gmt":"2015-02-14T13:56:06","guid":{"rendered":"http:\/\/www.climb.co.jp\/blog_dbmoto\/?p=2297"},"modified":"2016-03-14T17:09:33","modified_gmt":"2016-03-14T08:09:33","slug":"oracle-exadata%e3%81%ae%e3%83%91%e3%83%95%e3%82%a9%e3%83%bc%e3%83%9e%e3%83%b3%e3%82%b9%e3%80%80part1%ef%bc%9acell-offloading","status":"publish","type":"post","link":"https:\/\/www.climb.co.jp\/blog_dbmoto\/archives\/2297","title":{"rendered":"Oracle Exadata\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3000Part1\uff1aCell Offloading"},"content":{"rendered":"

Oracle Exadata\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306f\u6b21\u306e\u30b5\u30d6\u30bb\u30c3\u30c8\u306b\u5206\u5272\u3055\u308c\u307e\u3059\u3002<\/p>\n

\u25cfCell Offloading
\n\u3000\u3000\u30fbSmart Scan
\n\u3000\u3000\u30fbStorage Indexes
\n\u3000\u3000\u30fbHCC(Hybrid Columnar Compression\uff09
\n\u25cfDBRM\/IORM
\n\u25cfSmart Flash Cache
\n\u25cf\u66f4\u306a\u308b\u30e2\u30cb\u30bf\u30fc\u3068\u30af\u30a8\u30ea\u30fc\u306b\u3088\u308b\u30c1\u30e5\u30fc\u30cb\u30f3\u30b0<\/p>\n

Cell offloading<\/strong> (\u307e\u305f\u306foffloading\uff09\u306fExadata\u306e\u524d\u306b\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u6bb5\u968e\u3067\u884c\u308f\u308c\u305f\u3067\u3042\u308d\u3046\u3082\u306e\u304c\u30b9\u30c8\u30ec\u30fc\u30b8\u6bb5\u968e\u3067\u884c\u308f\u308c\u3066\u3044\u308b\u3082\u306e\u3092\u8a18\u8ff0\u3059\u308b\u305f\u3081\u306e\u4e00\u822c\u7684\u306a\u7528\u8a9e\u3067\u3059\u3002\u3053\u308c\u306f\u304a\u305d\u3089\u304f\u3001Exadata\u3092\u9078\u629e\u3059\u308b\u6700\u5927\u306e\u5229\u70b9\u3067\u3059\u3002<\/p>\n

Smart Scan<\/strong>\u3067\u306f\u3001Exadata\u30de\u30b7\u30f3\u30fb\u30aa\u30da\u30ec\u30fc\u30b7\u30e7\u30f3\u306e\u4e00\u90e8\u306f\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306b\u3088\u308a\u5c11\u306a\u3044\u30c7\u30fc\u30bf\u3092\u623b\u3057\u3001I\/O\u3092\u6e1b\u5c11\u3055\u305b\u307e\u3059\u3002\u30e6\u30fc\u30b6\u306f\u300cCell Smart Table Scan\u300d\u3068 \u300cCell Smart Index Scan\u300d\u306e2\u3064\u306e\u30a6\u30a7\u30a4\u30c8\u30fb\u30a4\u30d9\u30f3\u30c8\u3067\u3001Smart Scan\u3092\u30e2\u30cb\u30bf\u30fc\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002Smart Scan\u304b\u3089\u306e\u30c7\u30fc\u30bf\u30fb\u30d5\u30ed\u30fc\u306fSGA\u30d7\u30fc\u30eb\u306b\u30d0\u30d5\u30a1\u30fc\u3067\u304d\u306a\u3044\u306e\u3067\u3001\u3053\u308c\u304c\u30c7\u30fc\u30bf\u3092\u9ad8\u901f\u306b\u30ea\u30bf\u30fc\u30f3\u3059\u308b\u7406\u7531\u306e1\u3064\u3067\u3059\u3002<\/p>\n

\"SmartScan\"<\/a><\/p>\n

\u30b9\u30c8\u30ec\u30fc\u30b8\u30fb\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\uff08Storage index\uff09<\/strong>\u306fSmart Scan\u3068\u9023\u643a\u3057\u3066\u3044\u307e\u3059\u3002\u30b9\u30c8\u30ec\u30fc\u30b8\u30fb\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u306e\u76ee\u7684\u306f\u30c7\u30fc\u30bf\u91cf\u3092\u524a\u6e1b\u3059\u308b\u3053\u3068\u3067\u306f\u306a\u304f\u3001\u30c7\u30fc\u30bf\u3092\u30ea\u30fc\u30c9\u3059\u308b\u6642\u9593\u3092\u524a\u6e1b\u3059\u308b\u3088\u3046\u306b\u30c7\u30b6\u30a4\u30f3\u3055\u308c\u305f\u3044\u307e\u3059\u3002\u30b9\u30c8\u30ec\u30fc\u30b8\u30fb\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u306f\u7269\u7406\u30bb\u30eb\u30fb\u30b9\u30c8\u30ec\u30fc\u30b8\u306e\u7279\u5b9a\u9818\u57df\u5185\u306e\u30c7\u30fc\u30bf\u306b\u3064\u3044\u3066\u60c5\u5831\u3092\u4fdd\u6301\u3059\u308b\u30a4\u30f3\u30fb\u30e1\u30e2\u30ea\u30fc\u69cb\u9020\u3067\u3059\u3002\u3053\u308c\u3089\u306f\u30b9\u30c8\u30ec\u30fc\u30b8\u30fb\u30b5\u30fc\u30d0\u3078\u30af\u30a8\u30ea\u30fc\u8ff0\u8a9e\u3092\u53d7\u3051\u6e21\u3057\u3001\u30b9\u30c8\u30ec\u30fc\u30b8\u30fb\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u306f\u54041MB\u30b9\u30c8\u30ec\u30fc\u30b8\u9818\u57df\u306e\u5024\u306e\u30de\u30c3\u30d7\u3092\u4fdd\u6301\u3057\u3066\u3044\u308b\u306e\u3067\u30d7\u30ec\u30fb\u30d5\u30a3\u30eb\u30bf\u30fc\u3068\u3057\u3066\u8003\u3048\u3066\u304f\u3060\u3055\u3044\u3002\u4e00\u81f4\u3059\u308b\u884c\u3092\u542b\u3081\u308b\u3053\u3068\u304c\u3067\u304d\u306a\u3044\u4efb\u610f\u306e\u9818\u57df\u306f\u30ea\u30fc\u30c9\u3059\u308b\u3053\u3068\u306a\u304f\u9664\u5916\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u307e\u305f\u30b9\u30c8\u30ec\u30fc\u30b8\u30fb\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u306f\u30d1\u30fc\u30c6\u30a3\u30b7\u30e7\u30f3\u306e\u30bf\u30a4\u30d7\u306e1\u3064\u3068\u8003\u3048\u3089\u308c\u307e\u3059\u3002\u30c7\u30a3\u30b9\u30afI\/ O\u306f\u3001\u30d1\u30fc\u30c6\u30a3\u30b7\u30e7\u30f3\u9664\u53bb\u306b\u985e\u4f3c\u3057\u305f\u65b9\u6cd5\u3067\u9664\u53bb\u3055\u308c\u307e\u3059\u3002\u30d1\u30fc\u30c6\u30a3\u30b7\u30e7\u30f3\u306f\u95a2\u9023\u3059\u308b\u30ec\u30b3\u30fc\u30c9\u3092\u542b\u3080\u3053\u3068\u304c\u3067\u304d\u306a\u3044\u306a\u3089\u3001\u30d1\u30fc\u30c6\u30a3\u30b7\u30e7\u30f3\u306e\u30d6\u30ed\u30c3\u30af\u306f\u30ea\u30fc\u30c9\u3055\u308c\u307e\u305b\u3093\u3002\u540c\u69d8\u306b\u30b9\u30c8\u30ec\u30fc\u30b8\u9818\u57df\u304c\u95a2\u9023\u3059\u308b\u30ec\u30b3\u30fc\u30c9\u3092\u542b\u3093\u3067\u3044\u306a\u3051\u308c\u3070\u3001\u30b9\u30c8\u30ec\u30fc\u30b8\u9818\u57df\u306f\u30ea\u30fc\u30c9\u3055\u308c\u307e\u305b\u3093\u3002\u3053\u308c\u306f\u3088\u304fOLAP\u30b7\u30b9\u30c6\u30e0\u306b\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002\u672c\u8cea\u7684\u306b\u30e6\u30fc\u30b6\u306f\u30b9\u30c8\u30ec\u30fc\u30b8\u30fb\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u3092\u4f5c\u6210\u3059\u308b\u3053\u3068\u306f\u3067\u304d\u307e\u305b\u3093\u3002\u30b9\u30c8\u30ec\u30fc\u30b8\u30fb\u30bb\u30eb\u304c\u7e70\u308a\u8fd4\u3057\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u53d7\u3051\u53d6\u3063\u305f\u5f8c\u306b\u81ea\u52d5\u7684\u306b\u4f5c\u6210\u3055\u308c\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u306f\u30e1\u30e2\u30ea\u30fc\u306b\u4fdd\u5b58\u3055\u308c\u308b\u306e\u3067\u3001Exadata \u306e\u30ea\u30d6\u30fc\u30c8\u5f8c\u306b\u306f\u6d88\u3048\u3066\u3001\u518d\u69cb\u7bc9\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n

HCC (Hybrid Columnar Compression)<\/strong>\u306f\u4fdd\u5b58\u3057\u305f\u30c7\u30fc\u30bf\u306e\u884c\u3068\u5217\u9806\u5e8f\u65b9\u5f0f\u306e\u4e21\u65b9\u3092\u7d44\u307f\u5408\u305b\u3092\u5229\u7528\u3057\u305f\u6280\u8853\u3067\u3059\u3002HCC\u884c\u306e\u30bb\u30c3\u30c8\u306b\u4fdd\u5b58\u3055\u308c\u305f\u300ccompression unit\u300d\u3068\u547c\u3076\u30ed\u30b8\u30ab\u30eb\u69cb\u6210\u3092\u4f5c\u6210\u3059\u308b\u3053\u3068\u3067\u884c\u308f\u308c\u307e\u3059\u3002\u30c7\u30fc\u30bf\u304c\u30ed\u30fc\u30c9\u3055\u308c\u305f\u6642\u306b\u884c\u30bb\u30c3\u30c8\u7528\u306e\u5217\u30d0\u30ea\u30e5\u30fc\u306f\u4e00\u7dd2\u306b\u30b0\u30eb\u30fc\u30d7\u5316\u3055\u308c\u3001\u5727\u7e2e\u3055\u308c\u307e\u3059\u3002\u884c\u30bb\u30c3\u30c8\u7528\u306e\u5217\u30d0\u30ea\u30e5\u30fc\u306f\u5727\u7e2e\u5f8c\u306b\u5727\u7e2e\u30e6\u30cb\u30c3\u30c8\u306b\u30b9\u30c8\u30a2\u30fc\u3055\u308c\u307e\u3059\u3002\u30ed\u30fc\u30c7\u30a3\u30f3\u30b0\u306e\u30b9\u30d4\u30fc\u30c9\u3092\u6700\u5927\u5316\u3059\u308b\u305f\u3081\u306b\u306f\u30e6\u30fc\u30b6\u306f\u300cDW\u300d\u30ed\u30fc\u30c7\u30a3\u30f3\u30b0\u6280\u8853\u3092\u4f7f\u7528\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u5f93\u6765\u578b\u306eDML (Data Manipulation Language)\u30aa\u30da\u30ec\u30fc\u30b7\u30e7\u30f3\u3092\u611b\u7528\u3059\u308b\u3053\u3068\u3082\u3067\u304d\u307e\u3059\u304c\u3001\u30ed\u30fc\u30c9\u306f\u9045\u304f\u306a\u308a\u307e\u3059\u30023\u3064\u306e\u30bf\u30a4\u30d7\u306eHCC\u304c\u3042\u308a\u307e\u3059\u3002\u6700\u521d\u306eQuery Low\u306fLZO\u5727\u7e2e\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u3092\u4f7f\u7528\u3057\u30014x\u5727\u7e2e\u7387\u304c\u60f3\u5b9a\u3055\u308c\u3066\u3044\u307e\u3059\u30022\u756a\u76ee\u304cQuery High\u3067zlib\u307e\u305f\u306f gzip\u3092\u4f7f\u7528\u3057\u30016x\u5727\u7e2e\u7387\u304c\u3042\u308a\u307e\u3059\u30023\u756a\u76ee\u304cArchive Low\u3067\u3001gZip\u3092\u4f7f\u7528\u3057\u3001\u9ad8\u5727\u7e2e\u30ec\u30d9\u30eb\u3067\u3059\u3002\u3053\u306e3\u3064\u76ee\u306e\u30aa\u30d7\u30b7\u30e7\u30f3\u306f\u30ed\u30fc\u30c9\u304c\u96e3\u3057\u304f\u3001\u30d1\u30fc\u30c6\u30a3\u30b7\u30e7\u30f3\u307e\u305f\u306f\u30c7\u30fc\u30bf\u30bb\u30c3\u30c8\u304c\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\u3055\u308c\u306a\u3044\u5f8c\u306b\u30ed\u30fc\u30c9\u3057\u306a\u3051\u308c\u3070\u4f7f\u7528\u3055\u308c\u307e\u305b\u3093\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

Oracle Exadata\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306f\u6b21\u306e\u30b5\u30d6\u30bb\u30c3\u30c8\u306b\u5206\u5272\u3055\u308c\u307e\u3059\u3002 \u25cfCell Offloading \u3000\u3000\u30fbSmart Scan \u3000\u3000\u30fbStorage Indexes \u3000\u3000\u30fbHCC(Hybrid Columna … \u7d9a\u304d\u3092\u8aad\u3080 →<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[191],"tags":[145,146,149,141],"class_list":["post-2297","post","type-post","status-publish","format-standard","hentry","category-database","tag-cell-offloading","tag-dba","tag-149","tag-oracle-exadata"],"_links":{"self":[{"href":"https:\/\/www.climb.co.jp\/blog_dbmoto\/wp-json\/wp\/v2\/posts\/2297","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.climb.co.jp\/blog_dbmoto\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.climb.co.jp\/blog_dbmoto\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.climb.co.jp\/blog_dbmoto\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.climb.co.jp\/blog_dbmoto\/wp-json\/wp\/v2\/comments?post=2297"}],"version-history":[{"count":16,"href":"https:\/\/www.climb.co.jp\/blog_dbmoto\/wp-json\/wp\/v2\/posts\/2297\/revisions"}],"predecessor-version":[{"id":3064,"href":"https:\/\/www.climb.co.jp\/blog_dbmoto\/wp-json\/wp\/v2\/posts\/2297\/revisions\/3064"}],"wp:attachment":[{"href":"https:\/\/www.climb.co.jp\/blog_dbmoto\/wp-json\/wp\/v2\/media?parent=2297"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.climb.co.jp\/blog_dbmoto\/wp-json\/wp\/v2\/categories?post=2297"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.climb.co.jp\/blog_dbmoto\/wp-json\/wp\/v2\/tags?post=2297"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}