{"id":516,"date":"2025-07-25T03:55:58","date_gmt":"2025-07-25T03:55:58","guid":{"rendered":"http:\/\/testing.orasas.com\/?page_id=516"},"modified":"2025-08-16T08:44:20","modified_gmt":"2025-08-16T08:44:20","slug":"oracle-dataguard","status":"publish","type":"page","link":"https:\/\/orasas.com\/en\/giai-phap\/san-sang-va-du-phong-tham-hoa\/oracle-dataguard\/","title":{"rendered":"Oracle DataGuard"},"content":{"rendered":"
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\n<\/div>\n\n\n\n
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Solution<\/h5>\n\n\n\n

Oracle Data Guard<\/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 Data Guard l\u00e0 m\u1ed9t gi\u1ea3i ph\u00e1p b\u1ea3o v\u1ec7 d\u1eef li\u1ec7u v\u00e0 \u0111\u1ea3m b\u1ea3o t\u00ednh s\u1eb5n s\u00e0ng cao (High Availability) \u0111\u01b0\u1ee3c Oracle cung c\u1ea5p, gi\u00fap duy tr\u00ec t\u00ednh li\u00ean t\u1ee5c v\u00e0 an to\u00e0n cho c\u01a1 s\u1edf d\u1eef li\u1ec7u trong c\u00e1c t\u00ecnh hu\u1ed1ng x\u1ea3y ra s\u1ef1 c\u1ed1 ho\u1eb7c m\u1ea5t d\u1eef li\u1ec7u. \u0110\u00e2y l\u00e0 m\u1ed9t trong nh\u1eefng th\u00e0nh ph\u1ea7n quan tr\u1ecdng trong chi\u1ebfn l\u01b0\u1ee3c Disaster Recovery (DR) v\u00e0 Business Continuity (BC) c\u1ee7a c\u00e1c h\u1ec7 th\u1ed1ng doanh nghi\u1ec7p.<\/p>\n\n\n\n

Oracle Data Guard bao g\u1ed3m m\u1ed9t c\u01a1 s\u1edf d\u1eef li\u1ec7u ch\u00ednh (Primary database) \u0111\u01b0\u1ee3c \u0111\u1ed3ng b\u1ed9 \u0111\u1ebfn m\u1ed9t hay nhi\u1ec1u c\u01a1 s\u1edf d\u1eef li\u1ec7u d\u1ef1 ph\u00f2ng (Standby database-t\u1ed1i \u0111a 30 Standby database) \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o an to\u00e0n d\u1eef li\u1ec7u.<\/p>\n\n\n\n

Oracle Data Guard cung c\u1ea5p c\u00e1c d\u1ecbch v\u1ee5 \u0111\u1ec3 t\u1ea1o, duy tr\u00ec, qu\u1ea3n l\u00fd v\u00e0 gi\u00e1m s\u00e1t m\u1ed9t hay nhi\u1ec1u c\u01a1 s\u1edf d\u1eef li\u1ec7u d\u1ef1 ph\u00f2ng cho ph\u00e9p h\u1ec7 th\u1ed1ng \u1ee9ng d\u1ee5ng v\u1eabn ho\u1ea1t \u0111\u1ed9ng khi c\u00f3 s\u1ef1 c\u1ed1 nh\u01b0 th\u1ea3m h\u1ecda hay h\u1ecfng h\u00f3c tr\u00ean c\u01a1 s\u1edf d\u1eef li\u1ec7u ch\u00ednh. Oracle Data Guard duy tr\u00ec c\u00e1c c\u01a1 s\u1edf d\u1eef li\u1ec7u d\u1ef1 ph\u00f2ng \u0111\u1ed3ng nh\u1ea5t \u0111\u1ebfn m\u1ee9c t\u1eebng giao d\u1ecbch so v\u1edbi c\u01a1 s\u1edf d\u1eef li\u1ec7u ch\u00ednh.<\/p>\n\n\n\n

M\u1ed9t khi c\u01a1 s\u1edf d\u1eef li\u1ec7u ch\u00ednh kh\u00f4ng s\u1eed d\u1ee5ng \u0111\u01b0\u1ee3c do vi\u1ec7c ng\u1eebng ho\u1ea1t \u0111\u1ed9ng trong k\u1ebf ho\u1ea1ch ho\u1eb7c b\u1ea5t th\u01b0\u1eddng, Oracle Data Guard s\u1ebd chuy\u1ec3n c\u01a1 s\u1edf d\u1eef li\u1ec7u d\u1ef1 ph\u00f2ng \u0111\u00f3ng vai tr\u00f2 cho c\u01a1 s\u1edf d\u1eef li\u1ec7u ch\u00ednh, do v\u1eady s\u1ebd gi\u1ea3m thi\u1ec3u th\u1eddi gian ng\u1eebng h\u1ec7 th\u1ed1ng. Oracle Data Guard c\u00f2n c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng v\u1edbi c\u00e1c gi\u1ea3i ph\u00e1p sao l\u01b0u, ph\u1ee5c h\u1ed3i v\u00e0 cluster \u0111\u1ec3 cung c\u1ea5p m\u1ee9c \u0111\u1ed9 s\u1eb5n s\u00e0ng cao, b\u1ea3o v\u1ec7 d\u1eef li\u1ec7u.<\/p>\n<\/div>\n\n\n\n

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Key Benefits<\/h5>\n\n\n\n
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\u0110\u1ea3m b\u1ea3o h\u1ec7 th\u1ed1ng c\u01a1 s\u1edf d\u1eef li\u1ec7u lu\u00f4n s\u1eb5n s\u00e0ng khi x\u1ea3y ra s\u1ef1 c\u1ed1 hay th\u1ea3m h\u1ecda.<\/p>\n<\/div>\n\n\n\n

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

Tr\u00e1nh \u0111\u01b0\u1ee3c vi\u1ec7c m\u1ea5t m\u00e1t d\u1eef li\u1ec7u.<\/p>\n<\/div>\n\n\n\n

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

T\u1eadn d\u1ee5ng \u0111\u01b0\u1ee3c t\u00e0i nguy\u00ean c\u1ee7a m\u00e1y ch\u1ee7 d\u1ef1 ph\u00f2ng.<\/p>\n<\/div>\n\n\n\n

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D\u1ec5 d\u00e0ng c\u1ea5u h\u00ecnh th\u00edch nghi theo m\u00f4i tr\u01b0\u1eddng doanh nghi\u1ec7p.<\/p>\n<\/div>\n\n\n\n

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

T\u1ef1 \u0111\u1ed9ng ph\u00e1t hi\u1ec7n gi\u00e1n \u0111o\u1ea1n v\u00e0 x\u1eed l\u00fd.<\/p>\n<\/div>\n\n\n\n

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

Ti\u1ebft ki\u1ec7m chi ph\u00ed b\u1ea3o tr\u00ec, n\u00e2ng c\u1ea5p.<\/p>\n<\/div>\n\n\n\n

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Qu\u1ea3n ly\u0301 d\u1ec5 d\u00e0ng, t\u1eadp trung.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n

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T\u00ednh n\u0103ng ch\u00ednh<\/strong><\/h5>\n\n\n\n
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M\u00e1y ch\u1ee7 d\u1ef1 ph\u00f2ng lu\u00f4n \u0111\u1ed3ng b\u1ed9 v\u1edbi m\u00e1y ch\u1ee7 ch\u00ednh.<\/p>\n<\/div>\n\n\n\n

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T\u1ef1 \u0111\u1ed9ng chuy\u1ec3n \u0111\u1ed5i vai tr\u00f2 gi\u1eefa m\u00e1y ch\u00ednh v\u00e0 m\u00e1y d\u1ef1 ph\u00f2ng nhanh ch\u00f3ng.<\/p>\n<\/div>\n\n\n\n

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Qu\u1ea3n l\u00fd d\u1ec5 d\u00e0ng v\u00e0 thu\u1eadn ti\u00ean b\u1eb1ng Data Guard Broker.<\/p>\n<\/div>\n\n\n\n

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H\u1ed7 tr\u1ee3 ch\u1ea1y tr\u00ean n\u1ec1n t\u1ea3ng c\u00e1c m\u00e1y ch\u1ee7 Oracle, Exadata.<\/p>\n<\/div>\n\n\n\n

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Kh\u00f4ng gi\u1edbi h\u1ea1n c\u00e1c lo\u1ea1i d\u1eef li\u1ec7u, h\u1ec7 th\u1ed1ng l\u01b0u tr\u1eef v\u00e0 thao t\u00e1c DDL v\u00e0 DML<\/p>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n

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Oracle Data Guard v\u00e0 c\u00e1c c\u00f4ng ngh\u1ec7 b\u1ed5 sung<\/h5>\n\n\n\n
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Active Data Guard<\/h6>\n\n\n\n

Ngo\u00e0i ch\u1ee9c n\u0103ng chu\u1ea9n, phi\u00ean b\u1ea3n Enterprise cung c\u1ea5p t\u00ednh n\u0103ng Active Data Guard, cho ph\u00e9p truy xu\u1ea5t d\u1eef li\u1ec7u tr\u00ean c\u01a1 s\u1edf d\u1eef li\u1ec7u d\u1ef1 ph\u00f2ng trong khi v\u1eabn \u0111ang \u0111\u1ed3ng b\u1ed9 v\u1edbi c\u01a1 s\u1edf d\u1eef li\u1ec7u ch\u00ednh. \u0110i\u1ec1u n\u00e0y gi\u00fap gi\u1ea3m t\u1ea3i tr\u00ean c\u01a1 s\u1edf d\u1eef li\u1ec7u ch\u00ednh b\u1eb1ng c\u00e1ch t\u1eadn d\u1ee5ng t\u00e0i nguy\u00ean tr\u00ean c\u01a1 s\u1edf d\u1eef li\u1ec7u d\u1ef1 ph\u00f2ng \u0111\u1ec3 ch\u1ea1y c\u00e1c b\u00e1o c\u00e1o, ph\u00e2n t\u00edch d\u1eef li\u1ec7u\u2026<\/p>\n\n\n\n

\"Qu\u1ea3n<\/figure>\n<\/div>\n\n\n\n
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Snapshot Standby Database<\/h6>\n\n\n\n

Cho ph\u00e9p s\u1eed d\u1ee5ng c\u01a1 s\u1edf d\u1eef li\u1ec7u d\u1ef1 ph\u00f2ng \u1edf ch\u1ebf \u0111\u1ed9 read-write t\u1ea1m th\u1eddi \u0111\u1ec3 ki\u1ec3m th\u1eed, ph\u00e1t tri\u1ec3n \u1ee9ng d\u1ee5ng\u2026sau \u0111\u00f3 c\u00f3 th\u1ec3 quay l\u1ea1i tr\u1ea1ng th\u00e1i \u0111\u1ed3ng b\u1ed9 v\u1edbi c\u01a1 s\u1edf d\u1eef li\u1ec7u ch\u00ednh.<\/p>\n<\/div>\n\n\n\n

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Far Sync Instance<\/h6>\n\n\n\n

Far Sync Instance c\u1ee7a Oracle Data Guard l\u00e0 th\u00e0nh ph\u1ea7n Oracle Data Guard \u0111\u01b0\u1ee3c thi\u1ebft l\u1eadp t\u1eeb xa, \u0111\u00f3ng vai tr\u00f2 trung gian \u0111\u1ec3 ti\u1ebfp nh\u1eadn th\u00f4ng tin \u0111\u1ed3ng b\u1ed9 t\u1eeb c\u01a1 s\u1edf d\u1eef li\u1ec7u ch\u00ednh v\u00e0 sau \u0111\u00f3 chuy\u1ec3n ti\u1ebfp th\u00f4ng tin \u0111\u00f3 \u0111\u1ebfn c\u00e1c c\u01a1 s\u1edf d\u1eef li\u1ec7u d\u1ef1 ph\u00f2ng..<\/p>\n\n\n\n

\"Creating<\/figure>\n<\/div>\n\n\n\n
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Oracle Real Application Clusters (Oracle RAC)<\/h6>\n\n\n\n

Oracle RAC cho ph\u00e9p nhi\u1ec1u m\u00e1y ch\u1ee7 \u0111\u1ed9c l\u1eadp \u0111\u01b0\u1ee3c li\u00ean k\u1ebft b\u1eb1ng m\u1ed9t k\u1ebft n\u1ed1i chia s\u1ebb quy\u1ec1n truy c\u1eadp v\u00e0o c\u01a1 s\u1edf d\u1eef li\u1ec7u Oracle, cung c\u1ea5p t\u00ednh kh\u1ea3 d\u1ee5ng cao, kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng v\u00e0 d\u1ef1 ph\u00f2ng trong tr\u01b0\u1eddng h\u1ee3p x\u1ea3y ra s\u1ef1 c\u1ed1. Oracle RAC v\u00e0 Oracle Data Guard k\u1ebft h\u1ee3p v\u1edbi nhau mang l\u1ea1i l\u1ee3i \u00edch c\u1ee7a c\u1ea3 b\u1ea3o v\u1ec7 c\u1ea5p h\u1ec7 th\u1ed1ng, c\u1ea5p site v\u00e0 c\u1ea5p d\u1eef li\u1ec7u, mang l\u1ea1i m\u1ee9c \u0111\u1ed9 kh\u1ea3 d\u1ee5ng cao v\u00e0 ph\u1ee5c h\u1ed3i sau th\u1ea3m h\u1ecda m\u00e0 kh\u00f4ng m\u1ea5t d\u1eef li\u1ec7u.<\/p>\n<\/div>\n\n\n\n

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Flashback Database<\/h6>\n\n\n\n

T\u00ednh n\u0103ng Flashback Database cung c\u1ea5p kh\u1ea3 n\u0103ng ph\u1ee5c h\u1ed3i nhanh ch\u00f3ng t\u1eeb l\u1ed7i d\u1eef li\u1ec7u logic v\u00e0 l\u1ed7i c\u1ee7a ng\u01b0\u1eddi d\u00f9ng. B\u1eb1ng c\u00e1ch cho ph\u00e9p kh\u00f4i ph\u1ee5c l\u1ea1i d\u1eef li\u1ec7u t\u1ea1i th\u1eddi \u0111i\u1ec3m tr\u01b0\u1edbc hi\u1ec7n t\u1ea1i, c\u00e1c d\u1eef li\u1ec7u \u0111\u00e3 b\u1ecb thay \u0111\u1ed5i ho\u1eb7c x\u00f3a nh\u1ea7m c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c kh\u00f4i ph\u1ee5c tr\u1edf l\u1ea1i.
T\u00ednh n\u0103ng n\u00e0y gi\u00fap tr\u00e1nh ph\u1ea3i t\u1ea1o l\u1ea1i ho\u00e0n to\u00e0n c\u01a1 s\u1edf d\u1eef li\u1ec7u ch\u00ednh ban \u0111\u1ea7u sau khi th\u1ef1c hi\u1ec7n failover. C\u01a1 s\u1edf d\u1eef li\u1ec7u ch\u00ednh b\u1ecb l\u1ed7i c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c kh\u00f4i ph\u1ee5c v\u1ec1 th\u1eddi \u0111i\u1ec3m tr\u01b0\u1edbc khi failover v\u00e0 chuy\u1ec3n \u0111\u1ed5i th\u00e0nh c\u01a1 s\u1edf d\u1eef li\u1ec7u d\u1ef1 ph\u00f2ng cho c\u01a1 s\u1edf d\u1eef li\u1ec7u ch\u00ednh m\u1edbi.<\/p>\n\n\n\n

\"Flashback<\/figure>\n<\/div>\n\n\n\n
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Recovery Manager (RMAN)<\/h6>\n\n\n\n

RMAN l\u00e0 m\u1ed9t ti\u1ec7n \u00edch c\u1ee7a Oracle gi\u00fap \u0111\u01a1n gi\u1ea3n h\u00f3a vi\u1ec7c sao l\u01b0u, kh\u00f4i ph\u1ee5c v\u00e0 ph\u1ee5c h\u1ed3i c\u00e1c t\u1ec7p c\u01a1 s\u1edf d\u1eef li\u1ec7u. Oracle Data Guard \u0111\u01b0\u1ee3c t\u00edch h\u1ee3p h\u1eefu hi\u1ec7u v\u1edbi RMAN, cho ph\u00e9p t\u1ea1o c\u01a1 s\u1edf d\u1eef li\u1ec7u d\u1ef1 ph\u00f2ng t\u1eeb c\u00e1c b\u1ea3n sao l\u01b0u c\u1ee7a c\u01a1 s\u1edf d\u1eef li\u1ec7u ch\u00ednh; sao l\u01b0u tr\u00ean c\u01a1 s\u1edf d\u1eef li\u1ec7u d\u1ef1 ph\u00f2ng thay v\u00ec c\u01a1 s\u1edf d\u1eef li\u1ec7u ch\u00ednh nh\u1eb1m gi\u1ea3m t\u1ea3i cho c\u01a1 s\u1edf d\u1eef li\u1ec7u ch\u00ednh.<\/p>\n<\/div>\n\n\n\n

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Oracle Global Data Services (GDS)<\/h6>\n\n\n\n

Oracle Global Data Services (GDS) \u00e1p d\u1ee5ng m\u00f4 h\u00ecnh d\u1ecbch v\u1ee5 Oracle RAC cho c\u00e1c nh\u00f3m c\u01a1 s\u1edf d\u1eef li\u1ec7u ph\u00e2n t\u00e1n to\u00e0n c\u1ea7u, cung c\u1ea5p c\u00e2n b\u1eb1ng t\u1ea3i \u0111\u1ed9ng, chuy\u1ec3n \u0111\u1ed5i d\u1ef1 ph\u00f2ng v\u00e0 qu\u1ea3n l\u00fd d\u1ecbch v\u1ee5 t\u1eadp trung cho m\u1ed9t t\u1eadp h\u1ee3p c\u00e1c c\u01a1 s\u1edf d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c sao ch\u00e9p cung c\u1ea5p c\u00e1c d\u1ecbch v\u1ee5 chung. T\u1eadp h\u1ee3p c\u00e1c c\u01a1 s\u1edf d\u1eef li\u1ec7u c\u00f3 th\u1ec3 bao g\u1ed3m Oracle RAC v\u00e0 c\u00e1c c\u01a1 s\u1edf d\u1eef li\u1ec7u Oracle \u0111\u01a1n l\u1ebb \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i th\u00f4ng qua Oracle Data Guard, Oracle GoldenGate ho\u1eb7c b\u1ea5t k\u1ef3 c\u00f4ng ngh\u1ec7 sao ch\u00e9p n\u00e0o kh\u00e1c.<\/p>\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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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

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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

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\"\"\/<\/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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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 Data Guard Gi\u1edbi thi\u1ec7u Th\u00f4ng tin k\u1ef9 thu\u1eadt Gi\u1edbi thi\u1ec7u Oracle Data Guard l\u00e0 m\u1ed9t gi\u1ea3i ph\u00e1p […]<\/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-516","page","type-page","status-publish","hentry"],"yoast_head":"\nOracle DataGuard - 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