{"id":518,"date":"2025-07-25T03:56:23","date_gmt":"2025-07-25T03:56:23","guid":{"rendered":"http:\/\/testing.orasas.com\/?page_id=518"},"modified":"2025-08-15T06:26:26","modified_gmt":"2025-08-15T06:26:26","slug":"oracle-real-application-cluster","status":"publish","type":"page","link":"https:\/\/orasas.com\/en\/giai-phap\/san-sang-va-du-phong-tham-hoa\/oracle-real-application-cluster\/","title":{"rendered":"Oracle Real Application Cluster"},"content":{"rendered":"
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Solution<\/h5>\n\n\n\n

Oracle Real Application Cluster (RAC)<\/h4>\n\n\n\n
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Gi\u1edbi thi\u1ec7u<\/p>\n\n\n\n

Th\u00f4ng tin k\u1ef9 thu\u1eadt<\/p>\n<\/div>\n\n\n\n

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Gi\u1edbi thi\u1ec7u<\/h5>\n\n\n\n

Oracle Real Application Clusters (RAC) l\u00e0 gi\u1ea3i ph\u00e1p x\u00e2y d\u1ef1ng m\u1ed9t c\u1ee5m (cluster) g\u1ed3m nhi\u1ec1u m\u00e1y ch\u1ee7 ho\u1ea1t \u0111\u1ed9ng nh\u01b0 m\u1ed9t h\u1ec7 th\u1ed1ng duy nh\u1ea5t.<\/p>\n\n\n\n

Oracle RAC cho ph\u00e9p m\u1ed9t c\u01a1 s\u1edf d\u1eef li\u1ec7u duy nh\u1ea5t ch\u1ea1y tr\u00ean nhi\u1ec1u n\u00fat \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i v\u1edbi nhau, d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c c\u00e1c m\u00e1y ch\u1ee7 x\u1eed l\u00fd tr\u00ean c\u00f9ng m\u1ed9t v\u00f9ng l\u01b0u tr\u1eef chung. \u0110\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 cung c\u1ea5p t\u00ednh s\u1eb5n s\u00e0ng, kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng v\u00e0 kh\u1ea3 n\u0103ng ch\u1ecbu l\u1ed7i cao, gi\u00fap t\u1ed5 ch\u1ee9c\/doanh nghi\u1ec7p t\u1ed1i \u01b0u chi ph\u00ed.<\/p>\n\n\n\n

Oracle RAC l\u00e0 ki\u1ebfn \u200b\u200btr\u00fac c\u01a1 s\u1edf d\u1eef li\u1ec7u duy nh\u1ea5t tr\u00ean th\u1ebf gi\u1edbi c\u00f3 th\u1ec3 m\u1edf r\u1ed9ng m\u1ecdi th\u1ee9, c\u00f3 t\u00ednh kh\u1ea3 d\u1ee5ng cao. N\u00f3 c\u00f3 th\u1ec3 m\u1edf r\u1ed9ng c\u1ea3 \u0111\u1ecdc v\u00e0 ghi m\u1ed9t c\u00e1ch minh b\u1ea1ch cho t\u1ea5t c\u1ea3 c\u00e1c kh\u1ed1i l\u01b0\u1ee3ng c\u00f4ng vi\u1ec7c, bao g\u1ed3m OLTP, ph\u00e2n t\u00edch, vect\u01a1 AI, SaaS, JSON, v\u0103n b\u1ea3n, \u0111\u1ed3 th\u1ecb, Internet v\u1ea1n v\u1eadt (IoT) v\u00e0 trong b\u1ed9 nh\u1edb. N\u00f3 cung c\u1ea5p t\u00ednh kh\u1ea3 d\u1ee5ng cao t\u1ed1t nh\u1ea5t trong ph\u00e2n kh\u00fac th\u00f4ng qua h\u1ea7u h\u1ebft c\u00e1c s\u1ef1 c\u1ed1 ph\u1ea7n c\u1ee9ng v\u00e0 ph\u1ea7n m\u1ec1m c\u0169ng nh\u01b0 c\u00e1c s\u1ef1 ki\u1ec7n b\u1ea3o tr\u00ec.<\/p>\n\n\n\n

\u0110\u00e2y l\u00e0 l\u00fd do t\u1ea1i sao c\u00e1c ng\u00e2n h\u00e0ng, s\u00e0n giao d\u1ecbch ch\u1ee9ng kho\u00e1n, vi\u1ec5n th\u00f4ng, nh\u00e0 b\u00e1n l\u1ebb, ch\u00ednh ph\u1ee7 v\u00e0 ti\u1ec7n \u00edch h\u00e0ng \u0111\u1ea7u s\u1eed d\u1ee5ng Oracle RAC cho kh\u1ed1i l\u01b0\u1ee3ng c\u00f4ng vi\u1ec7c quan tr\u1ecdng, 24\/7 c\u1ee7a h\u1ecd.<\/p>\n<\/div>\n\n\n\n

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Key Benefits<\/h5>\n\n\n\n
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D\u1ef1 ph\u00f2ng th\u1ea3m h\u1ecda, \u0111\u1ea3m b\u1ea3o d\u1eef li\u1ec7u an to\u00e0n v\u00e0 s\u1eb5n s\u00e0ng cao<\/p>\n<\/div>\n\n\n\n

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D\u1ec5 d\u00e0ng m\u1edf r\u1ed9ng.<\/p>\n<\/div>\n\n\n\n

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T\u1eadn d\u1ee5ng ngu\u1ed3n t\u00e0i nguy\u00ean, t\u1ed1i \u01b0u chi ph\u00ed \u0111\u1ea7u t\u01b0.<\/p>\n<\/div>\n\n\n\n

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T\u1ed1i \u01b0u hi\u1ec7u su\u1ea5t c\u1ee7a h\u1ec7 th\u1ed1ng.<\/p>\n<\/div>\n\n\n\n

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Qu\u1ea3n l\u00fd t\u1eadp trung, d\u1ec5 d\u00e0ng v\u00e0 t\u1ef1 \u0111\u1ed9ng.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n

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S\u1ee9c m\u1ea1nh c\u1ee7a Real Application Cluster<\/h5>\n\n\n\n

B\u1ea3o v\u1ec7 an to\u00e0n d\u1eef li\u1ec7u. <\/strong>Oracle RAC b\u1ea3o v\u1ec7 c\u00e1c \u1ee9ng d\u1ee5ng kh\u1ecfi l\u1ed7i ph\u1ea7n c\u1ee9ng v\u00e0 ph\u1ea7n m\u1ec1m b\u1eb1ng c\u00e1ch t\u1ef1 \u0111\u1ed9ng chuy\u1ec3n \u0111\u1ed5i k\u1ebft n\u1ed1i \u1ee9ng d\u1ee5ng t\u1eeb c\u00e1c m\u00e1y ch\u1ee7 b\u1ecb \u1ea3nh h\u01b0\u1edfng sang c\u00e1c m\u00e1y ch\u1ee7 c\u00f2n ho\u1ea1t \u0111\u1ed9ng trong c\u1ee5m m\u00e0 kh\u00f4ng \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn ho\u1ea1t \u0111\u1ed9ng c\u1ee7a ng\u01b0\u1eddi d\u00f9ng.<\/p>\n\n\n\n

Cung c\u1ea5p \u0111\u1ed9 tr\u1ec5 th\u1ea5p nh\u1ea5t.<\/strong> Oracle RAC cung c\u1ea5p \u0111\u1ed9 tr\u1ec5 th\u1ea5p nh\u1ea5t v\u1edbi th\u00f4ng l\u01b0\u1ee3ng cao nh\u1ea5t cho m\u1ecdi nhu c\u1ea7u d\u1eef li\u1ec7u. B\u1ed9 nh\u1edb \u0111\u1ec7m h\u1ee3p nh\u1ea5t \u0111\u1ed9c \u0111\u00e1o c\u1ee7a n\u00f3 tr\u00ean c\u00e1c m\u00e1y ch\u1ee7 gi\u00fap \u0111\u1ea3m b\u1ea3o truy c\u1eadp d\u1eef li\u1ec7u c\u1ee5c b\u1ed9 c\u1ef1c nhanh, trong khi kh\u1ed1i l\u01b0\u1ee3ng c\u00f4ng vi\u1ec7c song song tr\u00ean t\u1ea5t c\u1ea3 c\u00e1c CPU \u0111\u1ea3m b\u1ea3o th\u00f4ng l\u01b0\u1ee3ng t\u1ed1i \u0111a.<\/p>\n\n\n\n

X\u1eed l\u00fd song song hi\u1ec7u qu\u1ea3 cao.<\/strong> Oracle RAC t\u0103ng t\u1ed1c \u0111\u00e1ng k\u1ec3 khi th\u1ef1c hi\u1ec7n c\u00e1c t\u00e1c v\u1ee5 l\u1edbn, ch\u1eb3ng h\u1ea1n nh\u01b0 ph\u00e2n t\u00edch, h\u00e0ng lo\u1ea1t, l\u1eadp ch\u1ec9 m\u1ee5c, s\u1eafp x\u1ebfp l\u1ea1i d\u1eef li\u1ec7u v\u00e0 thay \u0111\u1ed5i l\u01b0\u1ee3c \u0111\u1ed3 \u1ee9ng d\u1ee5ng b\u1eb1ng c\u00e1ch ph\u00e2n ph\u1ed1i v\u00e0 song song h\u00f3a c\u00e1c truy v\u1ea5n, c\u1eadp nh\u1eadt, ch\u00e8n v\u00e0 x\u00f3a d\u1eef li\u1ec7u m\u1ed9t c\u00e1ch minh b\u1ea1ch tr\u00ean nhi\u1ec1u m\u00e1y ch\u1ee7, bao g\u1ed3m c\u00e1c l\u1ec7nh \u0111\u1ecbnh ngh\u0129a d\u1eef li\u1ec7u (DDL).<\/p>\n\n\n\n

Th\u1eddi gian ph\u1ea3n h\u1ed3i nhanh nh\u1ea5t.<\/strong> Oracle RAC cung c\u1ea5p th\u1eddi gian ph\u1ea3n h\u1ed3i nhanh h\u01a1n so v\u1edbi c\u00e1c ph\u01b0\u01a1ng th\u1ee9c kh\u00e1c. C\u00f4ng ngh\u1ec7 Cache Fusion \u0111\u1ed9c \u0111\u00e1o c\u1ee7a n\u00f3 cho ph\u00e9p truy c\u1eadp d\u1eef li\u1ec7u c\u1ee5c b\u1ed9 v\u00e0 l\u01b0u tr\u1eef \u0111\u1ec7m, gi\u1ea3m thi\u1ec3u hao ph\u00ed cho vi\u1ec7c trao \u0111\u1ed5i gi\u1eefa c\u00e1c m\u00e1y ch\u1ee7 trong c\u1ee5m.<\/p>\n\n\n\n

Kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng \u0111\u01a1n gi\u1ea3n v\u00e0 linh ho\u1ea1t.<\/strong> Khi c\u00f3 nhu c\u1ea7u t\u0103ng c\u01b0\u1eddng hi\u1ec7u su\u1ea5t c\u1ee7a h\u1ec7 th\u1ed1ng, ch\u1ec9 c\u1ea7n b\u1ed5 sung m\u00e1y ch\u1ee7 v\u00e0o c\u1ee5m \u0111\u1ec3 b\u1ed5 sung t\u00e0i nguy\u00ean c\u1ee7a m\u00e1y ch\u1ee7 \u0111\u00f3 v\u00e0o cho ho\u1ea1t \u0111\u1ed9ng c\u1ee7a c\u1ee5m m\u00e0 kh\u00f4ng c\u1ea7n \u0111\u00e2u t\u01b0 h\u1ec7 th\u1ed1ng m\u1edbi.<\/p>\n\n\n\n

C\u1eadp nh\u1eadt v\u00e0 v\u00e1 l\u1ed7i tr\u1ef1c tuy\u1ebfn.<\/strong> Oracle RAC cung c\u1ea5p kh\u1ea3 n\u0103ng v\u00e1 l\u1ed7i v\u00e0 c\u1eadp nh\u1eadt ph\u1ea7n m\u1ec1m tr\u1ef1c tuy\u1ebfn \u0111\u1ed9c \u0111\u00e1o, cho ph\u00e9p c\u00e1c \u1ee9ng d\u1ee5ng ch\u1ea1y li\u00ean t\u1ee5c m\u00e0 kh\u00f4ng b\u1ecb ng\u1eebng ho\u1ea1t \u0111\u1ed9ng trong qu\u00e1 tr\u00ecnh c\u01a1 s\u1edf d\u1eef li\u1ec7u ho\u1eb7c m\u00e1y ch\u1ee7 c\u01a1 s\u1edf \u0111\u01b0\u1ee3c c\u1eadp nh\u1eadt.<\/p>\n<\/div>\n\n\n\n

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Hi\u1ec7u qu\u1ea3 c\u1ee7a Oracle Real Application Clusters<\/h5>\n\n\n\n
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T\u0103ng c\u01b0\u1eddng t\u00ednh s\u1eb5n s\u00e0ng (High Availability – HA)<\/h6>\n\n\n\n
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  • N\u1ebfu m\u1ed9t node trong c\u1ee5m b\u1ecb l\u1ed7i, c\u00e1c node c\u00f2n l\u1ea1i v\u1eabn ti\u1ebfp t\u1ee5c ho\u1ea1t \u0111\u1ed9ng, gi\u00fap gi\u1ea3m thi\u1ec3u th\u1eddi gian gi\u00e1n \u0111o\u1ea1n.<\/li>\n\n\n\n
  • Gi\u00fap b\u1ea3o v\u1ec7 \u1ee9ng d\u1ee5ng kh\u1ecfi c\u00e1c l\u1ed7i ph\u1ea7n c\u1ee9ng ho\u1eb7c s\u1ef1 c\u1ed1 m\u00e1y ch\u1ee7 m\u00e0 kh\u00f4ng \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn ho\u1ea1t \u0111\u1ed9ng c\u1ee7a c\u01a1 s\u1edf d\u1eef li\u1ec7u.<\/li>\n<\/ul>\n<\/div>\n\n\n\n
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    C\u00e2n b\u1eb1ng t\u1ea3i v\u00e0 hi\u1ec7u su\u1ea5t cao (Load Balancing & High Performance)<\/h6>\n\n\n\n
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    • Oracle RAC ph\u00e2n ph\u1ed1i t\u1ea3i gi\u1eefa nhi\u1ec1u node, gi\u00fap h\u1ec7 th\u1ed1ng duy tr\u00ec hi\u1ec7u su\u1ea5t \u1ed5n \u0111\u1ecbnh ngay c\u1ea3 khi l\u01b0u l\u01b0\u1ee3ng t\u0103ng cao.<\/li>\n\n\n\n
    • Cho ph\u00e9p ch\u1ea1y c\u00e1c \u1ee9ng d\u1ee5ng c\u00f3 y\u00eau c\u1ea7u hi\u1ec7u su\u1ea5t cao b\u1eb1ng c\u00e1ch t\u1eadn d\u1ee5ng t\u00e0i nguy\u00ean t\u1eeb nhi\u1ec1u m\u00e1y ch\u1ee7.<\/li>\n<\/ul>\n<\/div>\n\n\n\n
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      Kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng linh ho\u1ea1t (Scalability)<\/h6>\n\n\n\n
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      • Khi nhu c\u1ea7u x\u1eed l\u00fd d\u1eef li\u1ec7u t\u0103ng l\u00ean, c\u00f3 th\u1ec3 th\u00eam m\u00e1y ch\u1ee7 m\u1edbi v\u00e0o c\u1ee5m RAC m\u00e0 kh\u00f4ng c\u1ea7n d\u1eebng h\u1ec7 th\u1ed1ng.<\/li>\n\n\n\n
      • H\u1ed7 tr\u1ee3 doanh nghi\u1ec7p m\u1edf r\u1ed9ng h\u1ec7 th\u1ed1ng theo nhu c\u1ea7u m\u00e0 kh\u00f4ng \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn hi\u1ec7u su\u1ea5t hi\u1ec7n t\u1ea1i.<\/li>\n<\/ul>\n<\/div>\n\n\n\n
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        Qu\u1ea3n l\u00fd t\u1eadp trung v\u00e0 d\u1ec5 b\u1ea3o tr\u00ec<\/h6>\n\n\n\n
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        • D\u1eef li\u1ec7u \u0111\u01b0\u1ee3c qu\u1ea3n l\u00fd chung tr\u00ean nhi\u1ec1u node, gi\u00fap gi\u1ea3m r\u1ee7i ro m\u1ea5t d\u1eef li\u1ec7u v\u00e0 t\u0103ng c\u01b0\u1eddng b\u1ea3o m\u1eadt.<\/li>\n\n\n\n
        • C\u00f3 th\u1ec3 b\u1ea3o tr\u00ec t\u1eebng node m\u00e0 kh\u00f4ng g\u00e2y gi\u00e1n \u0111o\u1ea1n to\u00e0n b\u1ed9 h\u1ec7 th\u1ed1ng.<\/li>\n<\/ul>\n<\/div>\n\n\n\n
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          Gi\u1ea3m t\u1ed5ng chi ph\u00ed s\u1edf h\u1eefu (TCO – Total Cost of Ownership)<\/h6>\n\n\n\n
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          • Gi\u00fap t\u1ed1i \u01b0u t\u00e0i nguy\u00ean ph\u1ea7n c\u1ee9ng b\u1eb1ng c\u00e1ch t\u1eadn d\u1ee5ng nhi\u1ec1u m\u00e1y ch\u1ee7 ti\u00eau chu\u1ea9n thay v\u00ec m\u1ed9t m\u00e1y ch\u1ee7 l\u1edbn, \u0111\u1eaft ti\u1ec1n.<\/li>\n\n\n\n
          • Gi\u1ea3m chi ph\u00ed gi\u00e1n \u0111o\u1ea1n d\u1ecbch v\u1ee5 do l\u1ed7i h\u1ec7 th\u1ed1ng.<\/li>\n<\/ul>\n<\/div>\n\n\n\n
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            H\u1ed7 tr\u1ee3 \u1ee9ng d\u1ee5ng v\u00e0 m\u00f4i tr\u01b0\u1eddng \u0111a n\u1ec1n t\u1ea3ng<\/h6>\n\n\n\n
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            • T\u01b0\u01a1ng th\u00edch v\u1edbi nhi\u1ec1u \u1ee9ng d\u1ee5ng doanh nghi\u1ec7p, \u0111\u1eb7c bi\u1ec7t l\u00e0 c\u00e1c h\u1ec7 th\u1ed1ng ERP, CRM v\u00e0 c\u00e1c \u1ee9ng d\u1ee5ng quan tr\u1ecdng kh\u00e1c.<\/li>\n\n\n\n
            • C\u00f3 th\u1ec3 tri\u1ec3n khai tr\u00ean nhi\u1ec1u h\u1ec7 \u0111i\u1ec1u h\u00e0nh v\u00e0 n\u1ec1n t\u1ea3ng ph\u1ea7n c\u1ee9ng kh\u00e1c nhau.<\/li>\n<\/ul>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n
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              T\u1ea1i sao l\u1ea1i ch\u1ecdn d\u1ecbch v\u1ee5 c\u1ee7a OSAS?<\/h5>\n\n\n\n
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              \"\"\/<\/figure>\n\n\n\n

              Nhi\u1ec1u n\u0103m kinh nghi\u1ec7m trong l\u0129nh v\u1ef1c thi\u1ebft k\u1ebf, x\u00e2y d\u1ef1ng v\u00e0 b\u1ea3o tr\u00ec c\u01a1 s\u1edf d\u1eef li\u1ec7u.<\/p>\n<\/div>\n\n\n\n

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              \"\"\/<\/figure>\n\n\n\n

              \u0110\u1ed9i ng\u0169 chuy\u00ean gia c\u00f3 ki\u1ebfn th\u1ee9c chuy\u00ean m\u00f4n cao v\u1ec1 c\u00f4ng ngh\u1ec7, ki\u1ebfn tr\u00fac c\u1ee7a h\u1ec7 th\u1ed1ng c\u01a1 s\u1edf d\u1eef li\u1ec7u.<\/p>\n<\/div>\n\n\n\n

              \n
              \"\"\/<\/figure>\n\n\n\n

              Nhi\u1ec1u n\u0103m kinh nghi\u1ec7m trong vi\u1ec7c t\u01b0 v\u1ea5n v\u00e0 tri\u1ec3n khai c\u00e1c gi\u1ea3i ph\u00e1p chuy\u00ean s\u00e2u v\u1ec1 c\u01a1 s\u1edf d\u1eef li\u1ec7u cho c\u00e1c \u0111\u01a1n v\u1ecb trong v\u00e0 ngo\u00e0i n\u01b0\u1edbc.<\/p>\n<\/div>\n\n\n\n

              \n
              \"\"\/<\/figure>\n\n\n\n

              Quy tr\u00ecnh l\u00e0m vi\u1ec7c chuy\u00ean nghi\u1ec7p, hi\u1ec7u qu\u1ea3.<\/p>\n<\/div>\n\n\n\n

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              \"\"\/<\/figure>\n\n\n\n

              Cam k\u1ebft b\u1ea3o m\u1eadt th\u00f4ng tin kh\u00e1ch h\u00e0ng.<\/p>\n<\/div>\n\n\n\n

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              \"\"\/<\/figure>\n\n\n\n

              H\u1ed7 tr\u1ee3 kh\u00e1ch h\u00e0ng 24\/7, \u0111\u00e1p \u1ee9ng x\u1eed l\u00fd s\u1ef1 c\u1ed1 theo m\u1ee9c \u0111\u1ed9 SLA.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"

              Gi\u1ea3i ph\u00e1p Oracle Real Application Cluster (RAC) Gi\u1edbi thi\u1ec7u Th\u00f4ng tin k\u1ef9 thu\u1eadt Gi\u1edbi thi\u1ec7u Oracle Real Application Clusters (RAC) […]<\/p>","protected":false},"author":1,"featured_media":0,"parent":494,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"disabled","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"class_list":["post-518","page","type-page","status-publish","hentry"],"yoast_head":"\nOracle Real Application Cluster - 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