{"id":1447,"date":"2018-10-03T09:42:48","date_gmt":"2018-10-03T01:42:48","guid":{"rendered":"http:\/\/www.royalwzy.com\/?p=1447"},"modified":"2019-05-03T09:44:58","modified_gmt":"2019-05-03T01:44:58","slug":"dataguard-%e7%90%86%e8%ae%ba%e7%9f%a5%e8%af%86","status":"publish","type":"post","link":"http:\/\/www.royalwzy.com\/?p=1447","title":{"rendered":"DataGuard \u7406\u8bba\u77e5\u8bc6"},"content":{"rendered":"

DataGuard \u7406\u8bba\u77e5\u8bc6
\n1. Oracle\u7684\u9ad8\u7ea7\u7279\u6027:
\n1. RAC, Data Gurad, Stream\u662fOracle\u9ad8\u53ef\u7528\u6027\u4f53\u7cfb\u4e2d\u7684\u4e09\u79cd\u5de5\u5177,\u6bcf\u4e2a\u5de5\u5177\u65e2\u53ef\u4ee5\u72ec\u7acb\u5e94\u7528,\u4e5f\u53ef\u4ee5\u76f8\u4e92\u914d\u5408,\u5b83\u4eec\u5404\u81ea\u7684\u4fa7\u91cd\u70b9\u4e0d\u540c,\u9002\u7528\u573a\u666f\u4e5f\u4e0d\u540c;
\n2. RAC\u5b83\u7684\u5f3a\u9879\u5728\u4e8e\u89e3\u51b3\u786c\u4ef6\u5355\u70b9\u6545\u969c\u548c\u8d1f\u8f7d\u5747\u8861,\u56e0\u6b64RAC\u65b9\u6848\u5e38\u7528\u4e8e7*24\u7684\u6838\u5fc3\u7cfb\u7edf,\u4f46RAC\u65b9\u6848\u4e2d\u7684\u6570\u636e\u53ea\u6709\u4e00\u4efd,\u5c3d\u7ba1\u53ef\u4ee5\u901a\u8fc7RAID\u7b49\u673a\u5236\u907f\u514d\u5b58\u50a8\u6545\u969c,\u4f46\u662f\u6570\u636e\u672c\u8eab\u662f\u6ca1\u6709\u5197\u4f59\u7684,\u5bb9\u6613\u5f62\u6210\u6570\u636e\u7684\u5355\u70b9\u6545\u969c;
\n3. Data Gurad\u901a\u8fc7\u5197\u4f59\u6570\u636e\u6765\u63d0\u4f9b\u6570\u636e\u4fdd\u62a4,Data Gurad\u901a\u8fc7\u65e5\u5fd7\u540c\u6b65\u673a\u5236\u4fdd\u8bc1\u5197\u4f59\u6570\u636e\u548c\u4e3b\u6570\u636e\u4e4b\u524d\u7684\u540c\u6b65,\u8fd9\u79cd\u540c\u6b65\u53ef\u4ee5\u662f\u5b9e\u65f6,\u5ef6\u65f6,\u540c\u6b65,\u5f02\u6b65\u591a\u79cd\u5f62\u5f0f.Data Gurad\u5e38\u7528\u4e8e\u5f02\u5730\u5bb9\u707e\u548c\u5c0f\u4f01\u4e1a\u7684\u9ad8\u53ef\u7528\u6027\u65b9\u6848,\u867d\u7136\u53ef\u4ee5\u5728Standby\u673a\u5668\u4e0a\u6267\u884c\u53ea\u8bfb\u67e5\u8be2,\u4ece\u800c\u5206\u6563Primary\u6570\u636e\u5e93\u7684\u6027\u80fd\u538b\u529b,\u4f46\u662fData Gurad\u51b3\u4e0d\u662f\u6027\u80fd\u89e3\u51b3\u65b9\u6848;
\n4. Stream\u662f\u4ee5Oracle Advanced Queue\u4e3a\u57fa\u7840\u5b9e\u73b0\u7684\u6570\u636e\u540c\u6b65,\u63d0\u4f9b\u4e86\u591a\u79cd\u7ea7\u522b\u7684\u7075\u6d3b\u914d\u7f6e,\u5e76\u4e14Oracle\u63d0\u4f9b\u4e86\u4e30\u5bcc\u7684API\u7b49\u5f00\u53d1\u652f\u6301,Stream\u66f4\u9002\u7528\u5728\u5e94\u7528\u5c42\u9762\u7684\u6570\u636e\u5171\u4eab.\u73b0\u5728\u5df2\u7ecf\u88abOracle GlodenGate\u5de5\u5177\u53d6\u4ee3;
\n2. DataGuard\u7684\u539f\u7406\u53ca\u4f18\u70b9:
\n1. \u5728Data Gurad\u73af\u5883\u4e2d,\u81f3\u5c11\u6709\u4e24\u4e2a\u6570\u636e\u5e93,\u4e00\u4e2a\u5904\u4e8eOpen\u72b6\u6001\u5bf9\u5916\u63d0\u4f9b\u670d\u52a1,\u8fd9\u4e2a\u6570\u636e\u5e93\u53eb\u4f5cPrimary Database.\u7b2c\u4e8c\u4e2a\u5904\u4e8e\u6062\u590d\u72b6\u6001,\u53eb\u4f5cStandby Database.\u8fd0\u884c\u65f6primary Database\u5bf9\u5916\u63d0\u4f9b\u670d\u52a1,\u7528\u6237\u5728Primary Database\u4e0a\u8fdb\u884c\u64cd\u4f5c,\u64cd\u4f5c\u88ab\u8bb0\u5f55\u5728\u8054\u673a\u65e5\u5fd7\u548c\u5f52\u6863\u65e5\u5fd7\u4e2d,\u8fd9\u4e9b\u65e5\u5fd7\u901a\u8fc7\u7f51\u7edc\u4f20\u9012\u7ed9Standby Database.\u8fd9\u4e2a\u65e5\u5fd7\u4f1a\u5728Standby Database\u4e0a\u91cd\u6f14,\u4ece\u800c\u5b9e\u73b0Primary Database \u548cStandby Database \u7684\u6570\u636e\u540c\u6b65;
\n2. Oracle Data Gurad\u5bf9\u8fd9\u4e00\u8fc7\u7a0b\u8fdb\u4e00\u6b65\u7684\u4f18\u5316\u8bbe\u8ba1,\u4f7f\u5f97\u65e5\u5fd7\u7684\u4f20\u9012,\u6062\u590d\u5de5\u4f5c\u66f4\u52a0\u81ea\u52a8\u5316,\u667a\u80fd\u5316,\u5e76\u4e14\u63d0\u4f9b\u4e00\u7cfb\u5217\u53c2\u6570\u548c\u547d\u4ee4\u7b80\u5316\u4e86DBA\u5de5\u4f5c.\u5982\u679c\u662f\u53ef\u9884\u89c1\u56e0\u7d20\u9700\u8981\u5173\u95edPrimary Database,\u6bd4\u5982\u8f6f\u786c\u4ef6\u5347\u7ea7,\u53ef\u4ee5\u628a Standby Database\u5207\u6362\u4e3aPrimary Database\u7ee7\u7eed\u5bf9\u5916\u670d\u52a1,\u8fd9\u6837\u5373\u51cf\u5c11\u4e86\u670d\u52a1\u505c\u6b62\u65f6\u95f4,\u5e76\u4e14\u6570\u636e\u4e0d\u4f1a\u4e22\u5931.\u5982\u679c\u5f02\u5e38\u539f\u56e0\u5bfc\u81f4Primary Database\u4e0d\u53ef\u7528,\u4e5f\u53ef\u4ee5\u628aStandby Database\u5f3a\u5236\u5207\u6362\u4e3aPrimary Database\u7ee7\u7eed\u5bf9\u5916\u670d\u52a1 ,\u8fd9\u65f6\u6570\u636e\u635f\u5931\u6210\u90fd\u548c\u914d\u7f6e\u7684\u6570\u636e\u4fdd\u62a4\u7ea7\u522b\u6709\u5173\u7cfb.\u56e0\u6b64Primary\u548cStandby\u53ea\u662f\u4e00\u4e2a\u89d2\u8272\u6982\u5ff5,\u5e76\u4e0d\u56fa\u5b9a\u5728\u67d0\u4e2a\u6570\u636e\u5e93\u4e2d;
\n3. DataGuard\u7ed3\u6784:
\n1. DG\u67b6\u6784\u53ef\u4ee5\u6309\u7167\u529f\u80fd\u5206\u62103\u4e2a\u90e8\u5206:
\n1. \u65e5\u5fd7\u53d1\u9001 (Redo Send);
\n2. \u65e5\u5fd7\u63a5\u6536 (Redo Receive);
\n3. \u65e5\u5fd7\u5e94\u7528 (Redo Apply);
\n2. \u65e5\u5fd7\u53d1\u9001(Redo Send):
\n1. Primary Database\u8fd0\u884c\u8fc7\u7a0b\u4e2d,\u4f1a\u6e90\u6e90\u4e0d\u65ad\u5730\u4ea7\u751fRedo\u65e5\u5fd7,\u8fd9\u4e9b\u65e5\u5fd7\u9700\u8981\u53d1\u9001\u5230Standy Database.\u8fd9\u4e2a\u53d1\u9001\u52a8\u4f5c\u53ef\u4ee5\u7531Primary Database\u7684LGWR\u6216\u8005ARCH\u8fdb\u7a0b\u5b8c\u6210,\u4e0d\u540c\u7684\u5f52\u6863\u76ee\u7684\u5730\u53ef\u4ee5\u4f7f\u7528\u4e0d\u540c\u7684\u65b9\u6cd5,\u4f46\u662f\u5bf9\u4e8e\u4e00\u4e2a\u76ee\u7684\u5730,\u53ea\u80fd\u9009\u7528\u4e00\u79cd\u65b9\u6cd5.\u9009\u62e9\u54ea\u4e2a\u8fdb\u7a0b\u5bf9\u6570\u636e\u4fdd\u62a4\u80fd\u529b\u548c\u7cfb\u7edf\u53ef\u7528\u6027\u6709\u5f88\u5927\u533a\u522b;
\n2. \u4f7f\u7528ARCH\u8fdb\u7a0b:
\n1. Primary Database\u4e0d\u65ad\u4ea7\u751fRedo Log,\u8fd9\u4e9b\u65e5\u5fd7\u88abLGWR\u8fdb\u7a0b\u5199\u5230\u8054\u673a\u65e5\u5fd7;
\n2. \u5f53\u4e00\u7ec4\u8054\u673a\u65e5\u5fd7\u88ab\u5199\u6ee1\u540e,\u4f1a\u53d1\u751f\u65e5\u5fd7\u5207\u6362(Log Switch),\u5e76\u4e14\u4f1a\u89e6\u53d1\u672c\u5730\u5f52\u6863,\u672c\u5730\u5f52\u6863\u4f4d\u7f6e\u662f\u91c7\u7528LOG_ARCHIVE_DEST_1=’LOCATION=\/path’\u8fd9\u79cd\u683c\u5f0f\u5b9a\u4e49\u7684;
\n3. \u5b8c\u6210\u672c\u5730\u5f52\u6863\u540e,\u8054\u673a\u65e5\u5fd7\u5c31\u53ef\u4ee5\u88ab\u8986\u76d6\u91cd\u7528;
\n4. ARCH\u8fdb\u7a0b\u901a\u8fc7Net\u628a\u5f52\u6863\u65e5\u5fd7\u53d1\u9001\u7ed9Standby Database\u7684RFS(Remote File Server)\u8fdb\u7a0b;
\n5. Standby Database\u7aef\u7684RFS\u8fdb\u7a0b\u628a\u63a5\u6536\u7684\u65e5\u5fd7\u5199\u5165\u5230\u5f52\u6863\u65e5\u5fd7(\u7528ARCH\u6a21\u5f0f\u4f20\u8f93\u4e0d\u5199Standby Redologs,\u76f4\u63a5\u4fdd\u5b58\u6210\u5f52\u6863\u65e5\u5fd7\u6587\u4ef6\u5b58\u653e\u4e8eStandby\u7aef);
\n6. Standby Database\u7aef\u7684MRP(Managed Recovery Process)\u8fdb\u7a0b(Redo Apply)\u6216\u8005LSP\u8fdb\u7a0b(SQL Apply)\u5728Standby Database\u4e0a\u5e94\u7528\u8fd9\u4e9b\u65e5\u5fd7,\u8fdb\u800c\u540c\u6b65\u6570\u636e;
\n1. \u903b\u8f91Standby\u63a5\u6536\u540e\u5c06\u5176\u8f6c\u6362\u6210SQL\u8bed\u53e5,\u5728Standby\u6570\u636e\u5e93\u4e0a\u6267\u884cSQL\u8bed\u53e5\u5b9e\u73b0\u540c\u6b65,\u8fd9\u79cd\u65b9\u5f0f\u53ebSQL Apply;
\n2. \u7269\u7406Standby\u63a5\u6536\u5b8cPrimary\u6570\u636e\u5e93\u751f\u6210\u7684REDO\u6570\u636e\u540e,\u4ee5\u4ecb\u8d28\u6062\u590d\u7684\u65b9\u5f0f\u5b9e\u73b0\u540c\u6b65,\u8fd9\u79cd\u65b9\u5f0f\u4e5f\u53ebRedo Apply;
\n3. \u521b\u5efa\u903b\u8f91Standby\u6570\u636e\u5e93\u8981\u5148\u521b\u5efa\u4e00\u4e2a\u7269\u7406Standby\u6570\u636e\u5e93,\u7136\u540e\u518d\u5c06\u5176\u8f6c\u6362\u6210\u903b\u8f91Standby\u6570\u636e\u5e93;
\n7. \u4f7f\u7528ARCH\u8fdb\u7a0b\u4f20\u9012\u6700\u5927\u95ee\u9898\u5728\u4e8e:Primary Database\u53ea\u6709\u5728\u53d1\u751f\u5f52\u6863\u65f6\u624d\u4f1a\u53d1\u9001\u65e5\u5fd7\u5230Standby Database.\u5982\u679cPrimary Database\u5f02\u5e38\u5b95\u673a,\u8054\u673a\u65e5\u5fd7\u4e2d\u7684Redo\u5185\u5bb9\u5c31\u4f1a\u4e22\u5931,\u56e0\u6b64\u4f7f\u7528ARCH\u8fdb\u7a0b\u65e0\u6cd5\u907f\u514d\u6570\u636e\u4e22\u5931\u7684\u95ee\u9898,\u8981\u60f3\u907f\u514d\u6570\u636e\u4e22\u5931,\u5c31\u5fc5\u987b\u4f7f\u7528LGWR,\u800c\u4f7f\u7528LGWR\u53c8\u5206SYNC(\u540c\u6b65)\u548cASYNC(\u5f02\u6b65)\u4e24\u79cd\u65b9\u5f0f;
\n8. \u5728\u7f3a\u7701\u65b9\u5f0f\u4e0b,Primary Database\u4f7f\u7528\u7684\u662fARCH\u8fdb\u7a0b;
\n3. \u4f7f\u7528LGWR\u8fdb\u7a0b\u7684SYNC\u65b9\u5f0f:
\n1. Primary Database\u4ea7\u751f\u7684Redo\u65e5\u5fd7\u8981\u540c\u65f6\u5199\u5230\u8054\u673a\u65e5\u5fd7\u6587\u4ef6\u548c\u7f51\u7edc.\u4e5f\u5c31\u662f\u8bf4LGWR\u8fdb\u7a0b\u628a\u65e5\u5fd7\u5199\u5230\u672c\u5730\u65e5\u5fd7\u6587\u4ef6\u7684\u540c\u65f6\u8fd8\u8981\u53d1\u9001\u7ed9\u672c\u5730\u7684LNSn\u8fdb\u7a0b(LGWR Network Server Process),\u518d\u7531LNSn\u8fdb\u7a0b\u628a\u65e5\u5fd7\u901a\u8fc7\u7f51\u7edc\u53d1\u9001\u7ed9\u8fdc\u7a0b\u7684\u76ee\u7684\u5730,\u6bcf\u4e2a\u8fdc\u7a0b\u76ee\u7684\u5730\u5bf9\u5e94\u4e00\u4e2aLNS\u8fdb\u7a0b,\u591a\u4e2aLNS\u8fdb\u7a0b\u80fd\u591f\u5e76\u884c\u5de5\u4f5c;
\n2. LGWR\u5fc5\u987b\u7b49\u5f85\u5199\u5165\u672c\u5730\u8054\u673a\u65e5\u5fd7\u6587\u4ef6\u64cd\u4f5c\u548c\u901a\u8fc7LNSn\u8fdb\u7a0b\u7684\u7f51\u7edc\u4f20\u9001\u90fd\u6210\u529f,Primary Database\u4e0a\u7684\u4e8b\u52a1\u624d\u80fd\u63d0\u4ea4,\u8fd9\u4e5f\u662fSYNC\u7684\u542b\u4e49\u6240\u5728;
\n3. Standby Database\u7684RFS\u8fdb\u7a0b\u628a\u63a5\u6536\u5230\u7684\u65e5\u5fd7\u5199\u5165\u5230Standby Redo Log\u65e5\u5fd7\u4e2d;
\n4. Primary Database\u7684\u65e5\u5fd7\u5207\u6362\u4e5f\u4f1a\u89e6\u53d1Standby Database\u4e0a\u7684\u65e5\u5fd7\u5207\u6362,\u5373Standby Database\u5bf9Standby Redo Log\u7684\u5f52\u6863,\u7136\u540e\u89e6\u53d1Standby Database\u7684MRP\u6216\u8005LSP\u8fdb\u7a0b\u6062\u590d\u5f52\u6863\u65e5\u5fd7;
\n5. \u56e0\u4e3aPrimary Database\u7684Redo\u662f\u5b9e\u65f6\u4f20\u9012\u7684,\u4e8e\u662fStandby Database\u7aef\u53ef\u4ee5\u4f7f\u7528\u4e24\u79cd\u6062\u590d\u65b9\u6cd5:
\n1. \u5b9e\u65f6\u6062\u590d(Real-Time Apply):\u53ea\u8981RFS\u628a\u65e5\u5fd7\u5199\u5165Standby Redo Log\u5c31\u4f1a\u7acb\u5373\u8fdb\u884c\u6062\u590d;
\n2. \u5f52\u6863\u6062\u590d:\u5728\u5b8c\u6210\u5bf9Standby Redo Log\u5f52\u6863\u624d\u89e6\u53d1\u6062\u590d;
\n6. Primary Database\u9ed8\u8ba4\u4f7f\u7528ARCH\u8fdb\u7a0b,\u5982\u679c\u4f7f\u7528LGWR\u8fdb\u7a0b\u5fc5\u987b\u660e\u786e\u6307\u5b9a.\u4f7f\u7528LGWR SYNC\u65b9\u5f0f\u65f6,\u53ef\u4ee5\u540c\u65f6\u4f7f\u7528NET_TIMEOUT\u53c2\u6570,\u8fd9\u4e2a\u53c2\u6570\u5355\u4f4d\u662f\u79d2,\u4ee3\u8868\u5982\u679c\u591a\u957f\u65f6\u95f4\u5185\u7f51\u7edc\u53d1\u9001\u6ca1\u6709\u54cd\u5e94,LGWR\u8fdb\u7a0b\u4f1a\u629b\u51fa\u9519\u8bef.\u5982:ALTER SYSTEM SET LOG_ARCHIVE_DEST_2 = ‘SERVICE= LGWR SYNC NET_TIMEOUT=30′ SCOPE = BOTH;
\n4. \u4f7f\u7528LGWR\u8fdb\u7a0b\u7684ASYNC\u65b9\u5f0f:
\n1. \u4f7f\u7528LGWR SYNC\u65b9\u6cd5\u7684\u53ef\u80fd\u95ee\u9898\u5728\u4e8e,\u5982\u679c\u65e5\u5fd7\u53d1\u9001\u7ed9Standby Database\u8fc7\u7a0b\u5931\u8d25,LGWR\u8fdb\u7a0b\u5c31\u4f1a\u62a5\u9519.\u4e5f\u5c31\u662f\u8bf4Primary Database\u7684LGWR\u8fdb\u7a0b\u4f9d\u8d56\u4e8e\u7f51\u7edc\u72b6\u51b5,\u6709\u65f6\u8fd9\u79cd\u8981\u6c42\u53ef\u80fd\u8fc7\u4e8e\u82db\u523b,\u8fd9\u65f6\u5c31\u53ef\u4ee5\u4f7f\u7528LGWR ASYNC\u65b9\u5f0f;
\n2. Primary Database\u4e00\u6bb5\u4ea7\u751fRedo\u65e5\u5fd7\u540e,LGWR\u628a\u65e5\u5fd7\u540c\u65f6\u63d0\u4ea4\u7ed9\u65e5\u5fd7\u6587\u4ef6\u548c\u672c\u5730LNS\u8fdb\u7a0b,\u4f46\u662fLGWR\u8fdb\u7a0b\u53ea\u9700\u6210\u529f\u5199\u5165\u65e5\u5fd7\u6587\u4ef6\u5c31\u53ef\u4ee5,\u4e0d\u5fc5\u7b49\u5f85LNSn\u8fdb\u7a0b\u7684\u7f51\u7edc\u4f20\u9001\u6210\u529f;
\n3. LNSn\u8fdb\u7a0b\u5f02\u6b65\u5730\u628a\u65e5\u5fd7\u5185\u5bb9\u53d1\u9001\u5230Standby Database.\u591a\u4e2aLNSn\u8fdb\u7a0b\u53ef\u4ee5\u5e76\u53d1\u53d1\u9001;
\n4. Primary Database\u7684Online Redo Log\u5199\u6ee1\u540e\u53d1\u751fLog Switch,\u89e6\u53d1\u5f52\u6863\u64cd\u4f5c,\u4e5f\u89e6\u53d1Standby Database\u5bf9Standby Database\u5bf9Standby Redo Log\u7684\u5f52\u6863,\u7136\u540e\u89e6\u53d1MRP\u6216\u8005LSP\u8fdb\u7a0b\u6062\u590d\u5f52\u6863\u65e5\u5fd7;
\n5. \u56e0\u4e3aLGWR\u8fdb\u7a0b\u4e0d\u4f1a\u7b49\u5f85LNSn\u8fdb\u7a0b\u7684\u54cd\u5e94\u7ed3\u679c,\u6240\u4ee5\u914d\u7f6eLGWR ASYNC\u65b9\u5f0f\u65f6\u4e0d\u9700\u8981NET_TIMEOUT\u53c2\u6570.\u5982:ALTER SYSTEM SET LOG_ARCHIVE_DEST_2 = ‘SERVICE=<\/oracle_net_name> LGWR ASYNC’ SCOPE = BOTH;
\n3. \u65e5\u5fd7\u63a5\u6536(Redo Receive):
\n1. Standby Database\u7684RFS(Remote File Server)\u8fdb\u7a0b\u63a5\u6536\u5230\u65e5\u5fd7\u540e,\u5c31\u628a\u65e5\u5fd7\u5199\u5230Standby Redo Log\u6216\u8005Archived Log\u6587\u4ef6\u4e2d,\u5177\u4f53\u5199\u5165\u54ea\u4e2a\u6587\u4ef6,\u53d6\u51b3\u4e8ePrimary\u7684\u65e5\u5fd7\u4f20\u9001\u65b9\u5f0f\u548cStandby database\u7684\u4f4d\u7f6e;
\n2. \u5982\u679c\u5199\u5230Standby Redo Log\u6587\u4ef6\u4e2d,\u5219\u5f53Primary Database\u53d1\u751f\u65e5\u5fd7\u5207\u6362\u65f6,\u4e5f\u4f1a\u89e6\u53d1Standby Database\u4e0a\u7684Standby Redo Log\u7684\u65e5\u5fd7\u5207\u6362,\u5e76\u628a\u8fd9\u4e2aStandby Redo Log\u5f52\u6863.\u5982\u679c\u662f\u5199\u5230Archived Log,\u90a3\u4e48\u8fd9\u4e2a\u52a8\u4f5c\u672c\u8eab\u4e5f\u53ef\u4ee5\u770b\u4f5c\u662f\u4e2a\u5f52\u6863\u64cd\u4f5c;
\n3. \u5728\u65e5\u5fd7\u63a5\u6536\u4e2d,\u9700\u8981\u6ce8\u610f\u7684\u662f\u5f52\u6863\u65e5\u5fd7\u4f1a\u88ab\u653e\u5728\u4ec0\u4e48\u4f4d\u7f6e:
\n1. \u5982\u679c\u914d\u7f6e\u4e86STANDBY_ARCHIVE_DEST\u53c2\u6570,\u5219\u4f7f\u7528\u8be5\u53c2\u6570\u6307\u5b9a\u7684\u76ee\u5f55;
\n2. \u5982\u679c\u67d0\u4e2aLOG_ARCHIVE_DEST_n\u53c2\u6570\u660e\u786e\u5b9a\u4e49\u4e86VALID_FOR=(STANDBY_LOGFILE,*)\u9009\u9879,\u5219\u4f7f\u7528\u8fd9\u4e2a\u53c2\u6570\u6307\u5b9a\u7684\u76ee\u5f55;
\n3. \u5982\u679c\u6570\u636e\u5e93\u7684COMPATIBLE\u53c2\u6570\u5927\u4e8e\u7b49\u4e8e10.0,\u5219\u9009\u53d6\u4efb\u610f\u4e00\u4e2aLOG_ARCHIVE_DEST_n\u7684\u503c;
\n4. \u5982\u679cSTANDBY_ARCHIVE_DEST\u548cLOG_ARCHIVE_DEST_n\u53c2\u6570\u90fd\u6ca1\u6709\u914d\u7f6e,\u4f7f\u7528\u7f3a\u7701\u7684STANDBY_ARCHIVE_DEST\u53c2\u6570\u503c,\u8fd9\u4e2a\u7f3a\u7701\u503c\u662f$ORACLE_HOME\/dbs\/arc;
\n4. \u65e5\u5fd7\u5e94\u7528(Redo Apply):
\n1. \u65e5\u5fd7\u5e94\u7528\u670d\u52a1,\u5c31\u662f\u5728Standby Database\u4e0a\u91cd\u6f14Primary Database\u65e5\u5fd7,\u4ece\u800c\u5b9e\u73b0\u4e24\u4e2a\u6570\u636e\u5e93\u7684\u6570\u636e\u540c\u6b65;
\n2. \u6839\u636eStandby Database\u91cd\u6f14\u65e5\u5fd7\u65b9\u5f0f\u7684\u4e0d\u540c,\u53ef\u5206\u4e3a\u7269\u7406Standby(Physical Standby)\u548c\u903b\u8f91Standby(Logical Standby):
\n1. Physical Standby\u4f7f\u7528\u7684\u662fMedia Recovery\u6280\u672f,\u5728\u6570\u636e\u5757\u7ea7\u522b\u8fdb\u884c\u6062\u590d,\u8fd9\u79cd\u65b9\u5f0f\u6ca1\u6709\u6570\u636e\u7c7b\u578b\u7684\u9650\u5236,\u53ef\u4ee5\u4fdd\u8bc1\u4e24\u4e2a\u6570\u636e\u5e93\u5b8c\u5168\u4e00\u81f4;Physical Standby\u6570\u636e\u5e93\u53ea\u80fd\u5728Mount\u72b6\u6001\u4e0b\u8fdb\u884c\u6062\u590d,\u4e5f\u53ef\u4ee5\u662f\u6253\u5f00,\u4f46\u53ea\u80fd\u5df2\u53ea\u8bfb\u65b9\u5f0f\u6253\u5f00,\u5e76\u4e14\u6253\u5f00\u65f6\u4e0d\u80fd\u6267\u884c\u6062\u590d\u64cd\u4f5c;
\n2. Logical Standby\u4f7f\u7528\u7684\u662fLogminer\u6280\u672f,\u901a\u8fc7\u628a\u65e5\u5fd7\u5185\u5bb9\u8fd8\u539f\u6210SQL\u8bed\u53e5,\u7136\u540eSQL\u5f15\u64ce\u6267\u884c\u8fd9\u4e9b\u8bed\u53e5,Logminer Standby\u4e0d\u652f\u6301\u6240\u6709\u6570\u636e\u7c7b\u578b,\u53ef\u4ee5\u5728\u89c6\u56feDBA_LOGSTDBY_UNSUPPORTED\u4e2d\u67e5\u770b\u4e0d\u652f\u6301\u7684\u6570\u636e\u7c7b\u578b,\u5982\u679c\u4f7f\u7528\u4e86\u8fd9\u79cd\u6570\u636e\u7c7b\u578b,\u5219\u4e0d\u80fd\u4fdd\u8bc1\u6570\u636e\u5e93\u5b8c\u5168\u4e00\u81f4;Logical Standby\u6570\u636e\u5e93\u53ef\u4ee5\u5728\u6062\u590d\u7684\u540c\u65f6\u8fdb\u884c\u8bfb\u5199\u64cd\u4f5c;
\n3. Standby\u6570\u636e\u5e93\u7684\u76f8\u5173\u8fdb\u7a0b\u8bfb\u53d6\u63a5\u6536\u5230\u7684REDO\u6570\u636e(\u53ef\u80fd\u6765\u81ea\u4e8eStandby\u7aef\u7684\u5f52\u6863\u6587\u4ef6,\u4e5f\u53ef\u80fd\u6765\u81ea\u4e8eStandby Redologs),\u518d\u5c06\u5176\u5199\u5165Standby\u6570\u636e\u5e93.\u4fdd\u5b58\u4e4b\u540e\u6570\u636e\u53c8\u662f\u600e\u4e48\u751f\u6210\u7684\u5462?\u4e24\u79cd\u65b9\u5f0f:\u7269\u7406Standby\u901a\u8fc7REDO\u5e94\u7528,\u903b\u8f91Standby\u901a\u8fc7SQL\u5e94\u7528;
\n4. \u6839\u636eRedo Apply\u53d1\u751f\u7684\u65f6\u95f4\u53ef\u4ee5\u5206\u6210\u4e24\u79cd:
\n1. \u5b9e\u65f6\u5e94\u7528(Real-Time Apply):\u8fd9\u79cd\u65b9\u5f0f\u5fc5\u987bStandby Redo Log,\u6bcf\u5f53\u65e5\u5fd7\u88ab\u5199\u5165Standby Redo Log\u65f6,\u5c31\u4f1a\u89e6\u53d1\u6062\u590d,\u4f7f\u7528\u8fd9\u79cd\u65b9\u5f0f\u7684\u597d\u5904\u5728\u4e0e\u53ef\u4ee5\u51cf\u5c11\u6570\u636e\u5e93\u5207\u6362(Switchover\u6216\u8005Failover)\u7684\u65f6\u95f4,\u56e0\u4e3a\u5207\u6362\u65f6\u95f4\u4e3b\u8981\u7528\u5728\u5269\u4f59\u65e5\u5fd7\u7684\u6062\u590d\u4e0a;
\n2. \u5f52\u6863\u65f6\u5e94\u7528,\u8fd9\u79cd\u65b9\u5f0f\u5728Primary Database\u53d1\u751f\u65e5\u5fd7\u5207\u6362,\u89e6\u53d1Standby Database\u5f52\u6863\u64cd\u4f5c,\u5f52\u6863\u5b8c\u6210\u540e\u89e6\u53d1\u6062\u590d,\u8fd9\u4e5f\u662f\u9ed8\u8ba4\u7684\u6062\u590d\u65b9\u5f0f;
\n3. \u5982\u679c\u662fPhysical Standby,\u53ef\u4ee5\u4f7f\u7528\u4e0b\u9762\u547d\u4ee4\u542f\u7528Real-Time:ALTER DATABASE RECOVER MANAGED STANDBY DATABASE USING CURRENT LOGFILE;
\n4. \u5982\u679c\u662fLogical Standby,\u53ef\u4ee5\u4f7f\u7528\u4e0b\u9762\u547d\u4ee4\u542f\u7528Real-Time:ALTER DATABASE START LOGICAL STANDBY APPLY IMMEDIATE;
\n5. \u67e5\u770b\u662f\u5426\u4f7f\u7528Real-Time apply:SELECT RECOVERY_MODE FROM v$archive_dest_status;
\n6. \u67e5\u770bStandby Database\u63a5\u6536\u65e5\u5fd7\u7684\u72b6\u6001:SELECT process, status, thread#, sequence#, client_pid FROM v$managed_standby;
\n4. \u6570\u636e\u4fdd\u62a4\u6a21\u5f0f:
\n1. Data Guard\u5141\u8bb8\u5b9a\u4e493\u79cd\u6570\u636e\u4fdd\u62a4\u6a21\u5f0f,\u5206\u522b\u662f\u6700\u5927\u4fdd\u62a4(Maximum Protection),\u6700\u5927\u53ef\u7528(Maximum Availability)\u548c\u6700\u5927\u6027\u80fd(Maximum Performance);
\n2. \u6700\u5927\u4fdd\u62a4(Maximum Protection):
\n1. \u8fd9\u79cd\u6a21\u5f0f\u80fd\u591f\u786e\u4fdd\u7edd\u65e0\u6570\u636e\u4e22\u5931.\u8981\u5b9e\u73b0\u8fd9\u4e00\u6b65\u5f53\u7136\u662f\u6709\u4ee3\u4ef7\u7684,\u5b83\u8981\u6c42\u6240\u6709\u7684\u4e8b\u52a1\u5728\u63d0\u4ea4\u524d\u5176REDO\u4e0d\u4ec5\u88ab\u5199\u5165\u5230\u672c\u5730\u7684Online Redologs,\u8fd8\u8981\u540c\u65f6\u5199\u5165\u5230Standby\u6570\u636e\u5e93\u7684Standby Redologs,\u5e76\u786e\u8ba4REDO\u6570\u636e\u81f3\u5c11\u5728\u4e00\u4e2aStandby\u6570\u636e\u5e93\u4e2d\u53ef\u7528(\u5982\u679c\u6709\u591a\u4e2a\u7684\u8bdd),\u7136\u540e\u624d\u4f1a\u5728Primary\u6570\u636e\u5e93\u4e0a\u63d0\u4ea4.\u5982\u679c\u51fa\u73b0\u4e86\u4ec0\u4e48\u6545\u969c\u5bfc\u81f4Standby\u6570\u636e\u5e93\u4e0d\u53ef\u7528\u7684\u8bdd(\u6bd4\u5982\u7f51\u7edc\u4e2d\u65ad),Primary\u6570\u636e\u5e93\u4f1a\u88abShutdown,\u4ee5\u9632\u6b62\u6570\u636e\u4e22\u5931;
\n2. \u4f7f\u7528\u8fd9\u79cd\u65b9\u5f0f\u8981\u6c42Standby Database\u5fc5\u987b\u914d\u7f6eStandby Redo Log,\u800cPrimary Database\u5fc5\u987b\u4f7f\u7528LGWR,SYNC,AFFIRM\u65b9\u5f0f\u5f52\u6863\u5230Standby Database;
\n3. \u6700\u9ad8\u53ef\u7528\u6027(Maximum availability):
\n1. \u8fd9\u79cd\u6a21\u5f0f\u5728\u4e0d\u5f71\u54cdPrimary\u6570\u636e\u5e93\u53ef\u7528\u524d\u63d0\u4e0b,\u63d0\u4f9b\u6700\u9ad8\u7ea7\u522b\u7684\u6570\u636e\u4fdd\u62a4\u7b56\u7565.\u5176\u5b9e\u73b0\u65b9\u5f0f\u4e0e\u6700\u5927\u4fdd\u62a4\u6a21\u5f0f\u7c7b\u4f3c,\u4e5f\u662f\u8981\u6c42\u672c\u5730\u4e8b\u52a1\u5728\u63d0\u4ea4\u524d\u5fc5\u987b\u81f3\u5c11\u5199\u5165\u4e00\u53f0Standby\u6570\u636e\u5e93\u7684Standby Redologs\u4e2d,\u4e0d\u8fc7\u4e0e\u6700\u5927\u4fdd\u62a4\u6a21\u5f0f\u4e0d\u540c\u7684\u662f,\u5982\u679c\u51fa\u73b0\u6545\u969c\u5bfc\u81f4Standby\u6570\u636e\u5e93\u65e0\u6cd5\u8bbf\u95ee,Primary\u6570\u636e\u5e93\u5e76\u4e0d\u4f1a\u88abShutdown,\u800c\u662f\u81ea\u52a8\u8f6c\u4e3a\u6700\u9ad8\u6027\u80fd\u6a21\u5f0f,\u7b49Standby\u6570\u636e\u5e93\u6062\u590d\u6b63\u5e38\u4e4b\u540e,Primary\u6570\u636e\u5e93\u53c8\u4f1a\u81ea\u52a8\u8f6c\u6362\u6210\u6700\u9ad8\u53ef\u7528\u6027\u6a21\u5f0f;
\n2. \u8fd9\u79cd\u65b9\u5f0f\u867d\u7136\u4f1a\u5c3d\u91cf\u907f\u514d\u6570\u636e\u4e22\u5931,\u4f46\u4e0d\u80fd\u7edd\u5bf9\u4fdd\u8bc1\u6570\u636e\u5b8c\u5168\u4e00\u81f4.\u8fd9\u79cd\u65b9\u5f0f\u8981\u6c42Standby Database\u5fc5\u987b\u914d\u7f6eStandby Redo Log,\u800cPrimary Database\u5fc5\u987b\u4f7f\u7528LGWR,SYNC,AFFIRM\u65b9\u5f0f\u5f52\u6863\u5230Standby Database;
\n4. \u6700\u9ad8\u6027\u80fd(Maximum performance):
\n1. \u7f3a\u7701\u6a21\u5f0f,\u8fd9\u79cd\u6a21\u5f0f\u5728\u4e0d\u5f71\u54cdPrimary\u6570\u636e\u5e93\u6027\u80fd\u524d\u63d0\u4e0b,\u63d0\u4f9b\u6700\u9ad8\u7ea7\u522b\u7684\u6570\u636e\u4fdd\u62a4\u7b56\u7565.\u4e8b\u52a1\u53ef\u4ee5\u968f\u65f6\u63d0\u4ea4,\u5f53\u524dPrimary\u6570\u636e\u5e93\u7684REDO\u6570\u636e\u81f3\u5c11\u9700\u8981\u5199\u5165\u4e00\u4e2aStandby\u6570\u636e\u5e93,\u4e0d\u8fc7\u8fd9\u79cd\u5199\u5165\u53ef\u4ee5\u662f\u4e0d\u540c\u6b65\u7684.\u5982\u679c\u7f51\u7edc\u6761\u4ef6\u7406\u60f3\u7684\u8bdd,\u8fd9\u79cd\u6a21\u5f0f\u80fd\u591f\u63d0\u4f9b\u7c7b\u4f3c\u6700\u9ad8\u53ef\u7528\u6027\u7684\u6570\u636e\u4fdd\u62a4,\u800c\u4ec5\u5bf9Primary\u6570\u636e\u5e93\u7684\u6027\u80fd\u6709\u8f7b\u5fae\u5f71\u54cd.\u8fd9\u4e5f\u662f\u521b\u5efaStandby\u6570\u636e\u5e93\u65f6,\u7cfb\u7edf\u7684\u9ed8\u8ba4\u4fdd\u62a4\u6a21\u5f0f;
\n2. \u8fd9\u79cd\u65b9\u5f0f\u53ef\u4ee5\u4f7f\u7528LGWR ASYNC\u6216\u8005ARCH\u8fdb\u7a0b\u5b9e\u73b0,Standby Database\u4e5f\u4e0d\u8981\u6c42\u4f7f\u7528Standby Redo Log;
\n5. \u4fee\u6539\u6570\u636e\u4fdd\u62a4\u6a21\u5f0f\u6b65\u9aa4:
\n1. \u5173\u95ed\u6570\u636e\u5e93,\u91cd\u542f\u5230Mount\u72b6\u6001,\u5982\u679c\u662fRAC,\u9700\u8981\u5173\u95ed\u6240\u6709\u5b9e\u4f8b,\u7136\u540e\u53ea\u542f\u52a8\u4e00\u4e2a\u5b9e\u4f8b\u5230mount\u72b6\u6001;
\n2. \u4fee\u6539\u5230\u65e5\u5fd7\u4f20\u8f93\u53c2\u6570:ALTER SYSTEM SET LOG_ARCHIVE_DEST_2 = ‘SERVICE=<\/oracle_net_name> LGWR SYNC|ASYNC AFFIRM|NOAFFIRM VALID_FOR=(ONLINE_LOGFILES,PRIMARY_ROLE) DB_UNIQUE_NAME=‘;
\n3. \u4fee\u6539\u6a21\u5f0f:ALTER DATABASE SET STANDBY DATABASE TO MAXIMIZE {PROTECTION | AVAILABILITY | PERFORMANCE};
\n4. \u6253\u5f00\u6570\u636e\u5e93:ALTER DATABASE OPEN;
\n5. \u786e\u8ba4\u4fee\u6539\u6570\u636e\u4fdd\u62a4\u6a21\u5f0f:SELECT protection_mode, protection_level FROM v$database;
\n5. \u81ea\u52a8\u88c2\u7f1d\u68c0\u6d4b\u548c\u89e3\u51b3:
\n1. \u5f53Primary Database\u7684\u67d0\u4e9b\u65e5\u5fd7\u6ca1\u6709\u6210\u529f\u53d1\u9001\u5230Standby Database,\u8fd9\u65f6\u5019\u53d1\u751f\u997f\u4e86\u5f52\u6863\u88c2\u7f1d(Archive Gap);
\n2. \u7f3a\u5931\u7684\u8fd9\u4e9b\u65e5\u5fd7\u5c31\u662f\u88c2\u7f1d(Gap).Data Guard\u80fd\u591f\u81ea\u52a8\u68c0\u6d4b,\u89e3\u51b3\u5f52\u6863\u88c2\u7f1d,\u4e0d\u9700\u8981DBA\u7684\u4ecb\u5165.\u8fd9\u9700\u8981\u914d\u7f6eFAL_CLIENT,FAL_SERVER\u8fd9\u4e24\u4e2a\u53c2\u6570(FAL:Fetch Archive Log);
\n3. \u4eceFAL\u8fd9\u4e2a\u540d\u5b57\u53ef\u4ee5\u770b\u51fa,\u8fd9\u4e2a\u8fc7\u7a0b\u662fStandby Database\u4e3b\u52a8\u53d1\u8d77\u7684”\u53d6”\u65e5\u5fd7\u7684\u8fc7\u7a0b,Standby Database\u5c31\u662fFAL_CLIENT.\u5b83\u662f\u4eceFAL_SERVER\u4e2d\u53d6\u8fd9\u4e9bGap,10g\u4e2d,\u8fd9\u4e2aFAL_SERVER\u53ef\u4ee5\u662fPrimary Database, \u4e5f\u53ef\u4ee5\u662f\u5176\u5b83\u7684Standby Database;\u5982:FAL_SERVER=’PR1,ST1,ST2’;
\n4. FAL_CLIENT\u548cFAL_SERVER\u4e24\u4e2a\u53c2\u6570\u90fd\u662fOracle Net Name.FAL_CLIENT\u901a\u8fc7\u7f51\u7edc\u5411FAL_SERVER\u53d1\u9001\u8bf7\u6c42,FAL_SERVER\u901a\u8fc7\u7f51\u7edc\u5411FAL_CLIENT\u53d1\u9001\u7f3a\u5931\u7684\u65e5\u5fd7.\u4f46\u662f\u8fd9\u4e24\u4e2a\u8fde\u63a5\u4e0d\u4e00\u5b9a\u662f\u4e00\u4e2a\u8fde\u63a5.\u56e0\u6b64FAL_CLIENT\u5411FAL_SERVER\u53d1\u9001\u8bf7\u6c42\u65f6,\u4f1a\u643a\u5e26FAL_CLIENT\u53c2\u6570\u503c,\u7528\u6765\u544a\u8bc9 FAL_SERVER\u5e94\u8be5\u5411\u54ea\u91cc\u53d1\u9001\u7f3a\u5c11\u7684\u65e5\u5fd7.\u8fd9\u4e2a\u53c2\u6570\u503c\u4e5f\u662f\u4e00\u4e2aOracle Net Name,\u8fd9\u4e2aName\u662f\u5728FAL_SERVER\u4e0a\u5b9a\u4e49\u7684,\u7528\u6765\u6307\u5411FAL_CLIENT;
\n5. DBA\u4e5f\u53ef\u4ee5\u624b\u5de5\u89e3\u51b3,\u5177\u4f53\u64cd\u4f5c\u6b65\u9aa4\u5982\u4e0b:
\n1. \u67e5\u770b\u662f\u5426\u6709\u65e5\u5fd7GAP:SELECT UNIQUE THREAD#, MAX(SEQUENCE#) OVER(PARTITION BY THREAD#) LAST FROM V$ARCHIVED_LOG;
\n2. SELECT THREAD#, LOW_SEQUENCE#, HIGH_SEQUENCE# FROM V$ARCHIVE_GAP;
\n3. \u5982\u679c\u6709,\u5219\u62f7\u8d1d\u8fc7\u6765;
\n4. \u624b\u5de5\u7684\u6ce8\u518c\u8fd9\u4e9b\u65e5\u5fd7:ALTER DATABASE REGISTER LOGFILE ‘\/path’;
\n6. \u6307\u5b9a\u65e5\u5fd7\u53d1\u9001\u5bf9\u8c61:
\n1. VALID_FOR\u5c5e\u6027\u6307\u5b9a\u4f20\u8f93\u53ca\u63a5\u6536\u5bf9\u8c61:
\n1. LOG_ARCHIVE_DEST_n\u53c2\u6570\u4e2d\u7684VALID_FOR\u5c5e\u6027,\u7528\u6765\u6307\u5b9a\u4f20\u8f93\u7684\u5185\u5bb9.\u4ece\u5b57\u9762\u7406\u89e3VALID_FOR\u5c31\u662f\u57fa\u4e8e\u54ea\u4e9b\u6709\u6548;
\n2. \u8be5\u5c5e\u6027\u6709\u4e24\u4e2a\u53c2\u6570\u503c\u9700\u8981\u6307\u5b9a:REDO_LOG_TYPE\u548cDATABASE_ROLE,\u6211\u4eec\u57fa\u672c\u4e0a\u53ef\u4ee5\u5c06\u5176\u7406\u89e3\u4e3a:\u53d1\u9001\u6307\u5b9a\u89d2\u8272\u751f\u6210\u7684\u6307\u5b9a\u7c7b\u578b\u7684\u65e5\u5fd7\u6587\u4ef6,\u8be5\u53c2\u6570\u7684\u4e3b\u8981\u76ee\u7684\u662f\u4e3a\u4e86\u786e\u4fdd\u4e00\u65e6\u53d1\u751f\u89d2\u8272\u5207\u6362\u64cd\u4f5c\u540e\u6570\u636e\u5e93\u7684\u6b63\u5e38\u8fd0\u8f6c;
\n1. REDO_LOG_TYPE:\u53ef\u8bbe\u7f6e\u4e3aONLINE_LOGFILE,STANDBY_LOGFILE,ALL_LOGFILES;
\n2. DATABASE_ROLE:\u53ef\u8bbe\u7f6e\u4e3aPRIMARY_ROLE,STANDBY_ROLE,ALL_ROLES;
\n3. VALID_FOR\u53c2\u6570\u9ed8\u8ba4\u503c\u662fVALID_FOR=(ALL_LOGFILES,ALL_ROLES);
\n4. \u63a8\u8350\u624b\u52a8\u8bbe\u7f6e\u8be5\u53c2\u6570\u800c\u4e0d\u8981\u4f7f\u7528\u9ed8\u8ba4\u503c,\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\u9ed8\u8ba4\u7684\u53c2\u6570\u503c\u4e0d\u4e00\u5b9a\u5408\u9002,\u5982\u903b\u8f91Standby\u5728\u9ed8\u8ba4\u60c5\u51b5\u4e0b\u5c31\u5904\u4e8eOPEN READ WRITE\u6a21\u5f0f,\u4e0d\u4ec5\u6709REDO\u6570\u636e\u800c\u4e14\u8fd8\u5305\u542b\u591a\u79cd\u65e5\u5fd7\u6587\u4ef6(Online Redologs,Archived Redologs,Standby Redologs);
\n5. \u9ed8\u8ba4\u60c5\u51b5\u4e0b,\u903b\u8f91Standby\u6570\u636e\u5e93\u751f\u6210\u7684\u5f52\u6863\u6587\u4ef6\u548c\u63a5\u6536\u5230\u7684\u5f52\u6863\u6587\u4ef6\u5728\u76f8\u540c\u7684\u8def\u5f84\u4e0b,\u8fd9\u65e2\u4e0d\u4fbf\u4e8e\u7ba1\u7406,\u4e5f\u6781\u6709\u53ef\u80fd\u5e26\u6765\u4e00\u4e9b\u9690\u60a3.\u5efa\u8bae\u5bf9\u6bcf\u4e2aLOG_ARCHIVE_DEST_n\u53c2\u6570\u8bbe\u7f6e\u5408\u9002\u7684VALID_FOR\u5c5e\u6027.\u672c\u5730\u751f\u6210\u7684\u5f52\u6863\u6587\u4ef6\u548c\u63a5\u6536\u5230\u7684\u5f52\u6863\u6587\u4ef6\u6700\u597d\u5206\u522b\u4fdd\u5b58\u4e8e\u4e0d\u540c\u8def\u5f84\u4e0b;
\n2. \u901a\u8fc7DB_UNIQUE_NAME\u5c5e\u6027\u6307\u5b9a\u6570\u636e\u5e93:
\n1. DB_UNIQUE_NAME\u5c5e\u6027\u662f10g\u7248\u672c\u65b0\u589e\u52a0\u7684\u4e00\u4e2a\u5173\u952e\u5b57,\u5728\u4e4b\u524d\u7248\u672c\u5e76\u6ca1\u6709\u8fd9\u4e00\u8bf4\u6cd5.\u8be5\u5c5e\u6027\u7684\u4f5c\u7528\u662f\u6307\u5b9a\u552f\u4e00\u7684Oracle\u6570\u636e\u5e93\u540d\u79f0,\u4e5f\u6b63\u56e0\u6709\u4e86DB_UNIQUE_NAME,REDO\u6570\u636e\u5728\u4f20\u8f93\u8fc7\u7a0b\u4e2d\u624d\u80fd\u786e\u8ba4\u4f20\u8f93\u5230 DBA\u5e0c\u671b\u88ab\u4f20\u8f93\u5230\u7684\u6570\u636e\u5e93\u4e0a;
\n2. \u5f53\u7136\u8981\u786e\u4fddREDO\u6570\u636e\u88ab\u4f20\u8f93\u5230\u6307\u5b9a\u670d\u52a1\u5668,\u9664\u4e86\u5728LOG_ARCHIVE_DEST_n\u53c2\u6570\u4e2d\u6307\u5b9a\u6b63\u786e DB_UNIQUE_NAME\u5c5e\u6027\u4e4b\u5916,\u8fd8\u6709\u4e00\u4e2a\u521d\u59cb\u5316\u53c2\u6570LOG_ARCHIVE_CONFIG\u4e5f\u9700\u8981\u8fdb\u884c\u6b63\u786e\u7684\u914d\u7f6e;
\n3. \u8be5\u53c2\u6570\u9664\u4e86\u6307\u5b9a Data Guard\u73af\u5883\u4e2d\u7684\u552f\u4e00\u6570\u636e\u5e93\u540d\u5916,\u8fd8\u5305\u62ec\u51e0\u4e2a\u5c5e\u6027,\u7528\u6765\u63a7\u5236REDO\u6570\u636e\u7684\u4f20\u8f93\u548c\u63a5\u6536:
\n1. SEND:\u5141\u8bb8\u6570\u636e\u5e93\u53d1\u9001\u6570\u636e\u5230\u8fdc\u7aef;
\n2. RECEIVE:\u5141\u8bb8Standby\u63a5\u6536\u6765\u81ea\u5176\u5b83\u6570\u636e\u5e93\u7684\u6570\u636e;
\n3. NOSEND,NORECEIVE:\u5c31\u662f\u7981\u6b62\u55bd;
\n4. \u8bbe\u7f6ePrimary\u6570\u636e\u5e93\u4e0d\u63a5\u6536\u4efb\u4f55\u5f52\u6863\u6570\u636e,\u53ef\u4ee5\u505a\u5982\u4e0b\u7684\u8bbe\u7f6e:LOG_ARCHIVE_CONFIG=’NORECEIVE,DG_CONFIG=(,,…)’;
\n5. \u5982\u679c\u505a\u4e86\u5982\u4e0a\u7684\u8bbe\u7f6e,\u5982\u679c\u8be5\u670d\u52a1\u5668\u53d1\u751f\u4e86\u89d2\u8272\u5207\u6362,\u90a3\u5b83\u4e5f\u6ca1\u6709\u63a5\u6536REDO\u6570\u636e\u7684\u80fd\u529b;
\n7. Data Guard\u73af\u5883\u5e94\u914d\u7f6e\u7684\u521d\u59cb\u5316\u53c2\u6570:
\n1. Primary\u89d2\u8272\u76f8\u5173\u7684\u521d\u59cb\u5316\u53c2\u6570:
\n1. DB_NAME:\u8981\u4fdd\u6301\u540c\u4e00\u4e2aData Guard\u4e2d\u6240\u6709\u6570\u636e\u5e93DB_NAME\u76f8\u540c;
\n2. DB_UNIQUE_NAME:\u4e3a\u6bcf\u4e00\u4e2a\u6570\u636e\u5e93\u6307\u5b9a\u4e00\u4e2a\u552f\u4e00\u7684\u540d\u79f0,\u8be5\u53c2\u6570\u4e00\u7ecf\u6307\u5b9a\u4e0d\u4f1a\u518d\u53d1\u751f\u53d8\u5316,\u9664\u975eDBA\u4e3b\u52a8\u4fee\u6539\u5b83,\u9700\u8981\u91cd\u542f\u6570\u636e\u5e93\u670d\u52a1;
\n3. LOG_ARCHIVE_CONFIG:\u8be5\u53c2\u6570\u7528\u6765\u63a7\u5236\u4ece\u8fdc\u7aef\u6570\u636e\u5e93\u63a5\u6536\u6216\u53d1\u9001REDO\u6570\u636e,\u901a\u8fc7DG_CONFIG\u5c5e\u6027\u5217\u51fa\u540c\u4e00\u4e2aData Guard\u4e2d\u6240\u6709DB_UNIQUE_NAME(\u542bPrimary\u6570\u636e\u5e93\u548cStandby\u6570\u636e\u5e93),\u4ee5\u9017\u53f7\u5206\u9694;
\n1. SEND\/NOSEND\u5c5e\u6027\u63a7\u5236\u662f\u5426\u53ef\u4ee5\u53d1\u9001;
\n2. RECEIVE\/NORECEIVE\u5c5e\u6027\u63a7\u5236\u662f\u5426\u80fd\u591f\u63a5\u6536;
\n3. \u4f8b\u5982:LOG_ARCHIVE_CONFIG=’DG_CONFIG=(,,…)’;
\n4. LOG_ARCHIVE_DEST_n:\u5f52\u6863\u6587\u4ef6\u7684\u751f\u6210\u8def\u5f84,\u8be5\u53c2\u6570\u975e\u5e38\u91cd\u8981,\u5e76\u4e14\u5c5e\u6027\u548c\u5b50\u53c2\u6570\u4e5f\u7279\u522b\u591a:
\n1. LOCATOIN|SERVICE:\u6307\u5b9a\u76ee\u6807\u662f\u672c\u5730\u8fd8\u662f\u7f51\u7edc\u4f4d\u7f6e;
\n2. MANDATORY|OPTIONAL:\u6307\u5b9a\u662f\u5426\u5f3a\u5236\u5199\u5230\u76ee\u6807\u4f4d\u7f6e,\u9ed8\u8ba4\u662fOPTIONAL;
\n3. DELAY(mins):\u6307\u5b9a\u95f4\u9694\u591a\u4e45\u5e94\u7528\u63a5\u6536\u5230\u7684\u65e5\u5fd7,\u9ed8\u8ba4\u662f30Mins;
\n4. ARCH|LGWR:\u6307\u5b9a\u4f7f\u7528ARCH\u8fdb\u7a0b\u4f20\u8f93\u5f52\u6863\u65e5\u5fd7\u8fd8\u662fLGWR\u8fdb\u7a0b\u4f20\u8f93\u5728\u7ebf\u8054\u673a\u65e5\u5fd7,\u9ed8\u8ba4\u662fARCH;
\n5. SYNC|ASYNC:\u6307\u5b9a\u662f\u540c\u6b65\u628aredo log\u540c\u6b65\u5199\u5230\u5907\u673a\u8fd8\u662f\u5f02\u6b65\u5199,\u9ed8\u8ba4\u662fASYNC;
\n6. AFFIRM|NOAFFIRM:\u6307\u5b9aRTS(Redo Transport Service)\u4f7f\u7528\u540c\u6b65\u8fd8\u662f\u5f02\u6b65\u65b9\u5f0f\u5199\u78c1\u76d8,\u7f3a\u7701\u662fNOARRIRM;
\n7. NET_TIMEOUT(s):\u6307\u5b9a\u8d85\u65f6\u65f6\u95f4,\u9ed8\u8ba4\u662f180s;
\n8. VALID_FOR:\u6307\u5b9a\u4f20\u8f93\u53ca\u63a5\u53d7\u5bf9\u8c61;
\n9. DB_UNIQUE_NAME:\u6307\u5b9a\u76ee\u6807\u6570\u636e\u5e93\u7684unique name;
\n10. REOPEN\u6307\u5b9a\u65f6\u95f4\u540e\u518d\u6b21\u5c1d\u8bd5\u5f52\u6863:
\n1. \u4f7f\u7528REOPEN=seconds(\u9ed8\u8ba4\u4e3a300\u79d2)\u5c5e\u6027,\u5728\u6307\u5b9a\u65f6\u95f4\u91cd\u590d\u5c1d\u8bd5\u5411\u5f52\u6863\u76ee\u7684\u5730\u8fdb\u884c\u5f52\u6863\u64cd\u4f5c,\u5982\u679c\u8be5\u53c2\u6570\u503c\u8bbe\u7f6e\u4e3a0,\u5219\u4e00\u65e6\u5931\u8d25\u5c31\u4e0d\u4f1a\u518d\u5c1d\u8bd5\u91cd\u65b0\u8fde\u63a5\u5e76\u53d1\u9001,\u76f4\u5230\u4e0b\u6b21REDO\u6570\u636e\u518d\u88ab\u5f52\u6863\u65f6\u4f1a\u91cd\u65b0\u5c1d\u8bd5;
\n2. \u4f8b\u5982,\u8bbe\u7f6e REOPEN\u4e3a100 \u79d2:LOG_ARCHIVE_DEST_2=’SERVICE=DavePrimary LGWR ASYNC REOPEN=100′;
\n11. ALTERNATE\u6307\u5b9a\u66ff\u8865\u7684\u5f52\u6863\u76ee\u7684\u5730:ALTERNATE\u5c5e\u6027\u5b9a\u4e49\u4e00\u4e2a\u66ff\u8865\u7684\u5f52\u6863\u76ee\u7684\u5730,\u6240\u8c13\u66ff\u8865\u5c31\u662f\u4e00\u65e6\u4e3b\u5f52\u6863\u76ee\u7684\u5730\u56e0\u5404\u79cd\u539f\u56e0\u65e0\u6cd5\u4f7f\u7528,\u5219\u4e34\u65f6\u5411ALTERNATE\u5c5e\u6027\u4e2d\u6307\u5b9a\u7684\u8def\u5f84\u5199;
\n1. \u4f8b\u5982:LOG_ARCHIVE_DEST_1=’LOCATION=\/disk1 ALTERNATE=LOG_ARCHIVE_DEST_2′;
\n2. LOG_ARCHIVE_DEST_STATE_1=ENABLE;
\n3. LOG_ARCHIVE_DEST_2=’LOCATION=\/disk2′;
\n4. LOG_ARCHIVE_DEST_STATE_2=ALTERNATE;
\n5. \u4e0a\u8ff0\u53c2\u6570\u8bbe\u7f6e\u5f52\u6863\u8def\u5f84\u4e3a\/disk1,\u5f53\/disk1\u8def\u5f84\u4e0b\u65e0\u6cd5\u6210\u529f\u5f52\u6863\u65f6,\u81ea\u52a8\u5c1d\u8bd5\u5411\/disk2\u8def\u5f84\u4e0b\u5f52\u6863\u6587\u4ef6;
\n12. \u4ece\u529f\u80fd\u4e0a\u6765\u770b,REOPEN\u4e0eALTERNATE\u662f\u6709\u4e00\u5b9a\u91cd\u590d\u7684,\u4e0d\u8fc7\u9700\u8981\u6ce8\u610f\u4e00\u70b9,REOPEN\u5c5e\u6027\u6bd4ALTERNATE\u5c5e\u6027\u7684\u4f18\u5148\u7ea7\u8981\u9ad8,\u5982\u679c\u4f60\u6307\u5b9aREOPEN\u5c5e\u6027\u7684\u503c>0,\u5219LGWR(\u6216ARCn)\u8fdb\u7a0b\u4f1a\u9996\u5148\u5c1d\u8bd5\u5411\u4e3b\u5f52\u6863\u76ee\u7684\u5730\u5199\u5165,\u76f4\u5230\u8fbe\u5230\u6700\u5927\u91cd\u8bd5\u6b21\u6570,\u5982\u679c\u4ecd\u7136\u5199\u5165\u5931\u8d25,\u624d\u4f1a\u5411ALTERNATE\u5c5e\u6027\u6307\u5b9a\u7684\u8def\u5f84\u5199;
\n13. MAX_FAILURE\u63a7\u5236\u5931\u8d25\u5c1d\u8bd5\u6b21\u6570:
\n1. \u7528REOPEN\u6307\u5b9a\u5931\u8d25\u540e\u91cd\u65b0\u5c1d\u8bd5\u7684\u65f6\u95f4\u5468\u671f,MAX_FAILURE\u5219\u63a7\u5236\u5931\u8d25\u5c1d\u8bd5\u7684\u6b21\u6570;
\n2. \u4f8b\u5982,\u8bbe\u7f6e LOG_ARCHIVE_DEST_1\u5728\u672c\u5730\u5f52\u6863\u6587\u4ef6\u65f6,\u5982\u679c\u9047\u5230\u9519\u8bef,\u5219\u6bcf\u9694100\u79d2\u5c1d\u8bd5\u4e00\u6b21,\u5171\u5c1d\u8bd5\u4e0d\u8d85\u8fc73\u6b21,\u8bbe\u7f6e\u5982\u4e0b:LOG_ARCHIVE_DEST_1=’LOCATION=E:\/ora10g\/oradata\/jsspdg\/ REOPEN=100 MAX_FAILURE=3′;
\n5. LOG_ARCHIVE_DEST_STATE_n:\u662f\u5426\u5141\u8bb8REDO\u4f20\u8f93\u670d\u52a1\u4f20\u8f93REDO\u6570\u636e\u5230\u6307\u5b9a\u7684\u8def\u5f84:
\n1. ENABLED:\u5f00\u542f\u4f20\u8f93,\u9ed8\u8ba4\u503c;
\n2. DEFER:\u963b\u6b62\u4f20\u8f93;
\n3. ALTERNATE:\u9ed8\u8ba4\u662f\u963b\u6b62,\u5f53\u5176\u5b83\u8def\u5f84\u5931\u8d25\u540e\u88ab\u6fc0\u6d3b;
\n4. RESET:\u91cd\u7f6e;
\n6. REMOTE_LOGIN_PASSWORDFILE:\u63a8\u8350\u8bbe\u7f6e\u53c2\u6570\u503c\u4e3aEXCLUSIVE\u6216\u8005SHARED,\u6ce8\u610f\u4fdd\u8bc1\u76f8\u540cData Guard\u914d\u7f6e\u4e2d\u6240\u6709DB\u670d\u52a1\u5668SYS\u5bc6\u7801\u76f8\u540c;
\n2. Standby\u89d2\u8272\u76f8\u5173\u7684\u53c2\u6570(\u5efa\u8bae\u5728Primary\u6570\u636e\u5e93\u7684\u521d\u59cb\u5316\u53c2\u6570\u4e2d\u4e5f\u8fdb\u884c\u8bbe\u7f6e,\u8fd9\u6837\u5373\u4f7f\u53d1\u751f\u89d2\u8272\u5207\u6362,\u65b0\u7684Standby\u4e5f\u80fd\u76f4\u63a5\u6b63\u5e38\u8fd0\u884c):
\n1. FAL_SERVER:\u6307\u5b9a\u4e00\u4e2aNet\u670d\u52a1\u540d,\u8be5\u53c2\u6570\u503c\u5bf9\u5e94\u7684\u6570\u636e\u5e93\u5e94\u4e3aPrimary\u89d2\u8272.\u5f53\u672c\u5730\u6570\u636e\u5e93\u4e3aStandby\u89d2\u8272\u65f6,\u5982\u679c\u53d1\u73b0\u5b58\u5728\u5f52\u6863\u4e2d\u65ad\u7684\u60c5\u51b5,\u8be5\u53c2\u6570\u7528\u6765\u6307\u5b9a\u83b7\u53d6\u4e2d\u65ad\u7684\u5f52\u6863\u6587\u4ef6\u7684\u670d\u52a1\u5668;FAL_SERVER\u53c2\u6570\u652f\u6301\u591a\u4e2a\u53c2\u6570\u503c,\u76f8\u4e92\u95f4\u4ee5\u9017\u53f7\u5206\u9694;
\n2. FAL_CLIENT:\u53c8\u6307\u5b9a\u4e00\u4e2aNet\u670d\u52a1\u540d,\u8be5\u53c2\u6570\u5bf9\u5e94\u6570\u636e\u5e93\u5e94\u4e3aStandby\u89d2\u8272.\u5f53\u672c\u5730\u6570\u636e\u5e93\u4ee5Primary\u89d2\u8272\u8fd0\u884c\u65f6,\u5411\u53c2\u6570\u503c\u4e2d\u6307\u5b9a\u7684\u7ad9\u70b9\u53d1\u9001\u4e2d\u65ad\u7684\u5f52\u6863\u6587\u4ef6;FAL_CLIENT\u53c2\u6570\u4e5f\u652f\u6301\u591a\u4e2a\u53c2\u6570\u503c,\u76f8\u4e92\u95f4\u4ee5\u9017\u53f7\u5206\u9694;
\n3. DB_FILE_NAME_CONVERT:Standby\u6570\u636e\u5e93\u7684\u6570\u636e\u6587\u4ef6\u8def\u5f84\u4e0ePrimary\u6570\u636e\u5e93\u6570\u636e\u6587\u4ef6(\u5305\u62ec\u4e34\u65f6\u8868\u7a7a\u95f4\u548cUNDO\u8868\u7a7a\u95f4)\u8def\u5f84\u4e0d\u4e00\u81f4\u65f6,\u53ef\u4ee5\u901a\u8fc7\u8bbe\u7f6eDB_FILE_NAME_CONVERT\u53c2\u6570\u7684\u65b9\u5f0f\u8ba9\u5176\u81ea\u52a8\u8f6c\u6362.\u8be5\u53c2\u6570\u503c\u5e94\u8be5\u6210\u5bf9\u51fa\u73b0,\u524d\u9762\u7684\u503c\u8868\u793a\u8f6c\u6362\u524d\u7684\u5f62\u5f0f,\u540e\u9762\u7684\u503c\u8868\u793a\u8f6c\u6362\u540e\u7684\u5f62\u5f0f;\u4f8b\u5982:DB_FILE_NAME_CONVERT=\u2018\/path1\u2019,\u2019\/path2′;
\n4. LOG_FILE_NAME_CONVERT:\u4f7f\u7528\u65b9\u5f0f\u4e0e\u4e0a\u76f8\u540c,\u53ea\u4e0d\u8fc7LOG_FILE_NAME_CONVERT\u4e13\u7528\u6765\u8f6c\u6362\u65e5\u5fd7\u6587\u4ef6\u8def;
\n5. STANDBY_FILE_MANAGEMENT:Primary\u6570\u636e\u5e93\u6570\u636e\u6587\u4ef6\u53d1\u751f\u4fee\u6539(\u5982\u65b0\u5efa,\u5220\u9664\u7b49)\u5219\u6309\u7167\u672c\u53c2\u6570\u7684\u8bbe\u7f6e\u5728Standby\u6570\u636e\u5e93\u4e2d\u4f5c\u76f8\u5e94\u4fee\u6539.\u8bbe\u4e3aAUTO\u8868\u793a\u81ea\u52a8\u7ba1\u7406.\u8bbe\u4e3aMANUAL\u8868\u793a\u9700\u8981\u624b\u5de5\u7ba1\u7406;
\n8. \u7269\u7406Standby\u548c\u903b\u8f91Standby\u7684\u533a\u522b:
\n1. \u7269\u7406Standby:
\n1. \u6211\u4eec\u77e5\u9053\u7269\u7406Standby\u4e0ePrimary\u6570\u636e\u5e93\u5b8c\u5168\u4e00\u6a21\u4e00\u6837,DG\u901a\u8fc7REDO\u5e94\u7528\u6765\u7ef4\u62a4\u7269\u7406Standby\u6570\u636e\u5e93;
\n2. \u901a\u5e38\u5728\u7269\u7406Standby\u6ca1\u6709\u6267\u884cREDO\u5e94\u7528\u64cd\u4f5c\u7684\u65f6\u5019,\u53ef\u4ee5\u5c06\u7269\u7406Standby\u6570\u636e\u5e93\u4ee5READ ONLY\u6a21\u5f0f\u6253\u5f00,\u5982\u679c\u6570\u636e\u5e93\u4e2d\u6307\u5b9a\u4e86Flashback Area\u7684\u8bdd,\u751a\u81f3\u8fd8\u53ef\u4ee5\u88ab\u4e34\u65f6\u6027\u7684\u7f6e\u4e3aREAD WRITE\u6a21\u5f0f,\u64cd\u4f5c\u5b8c\u4e4b\u540e\u518d\u901a\u8fc7Flashback Database\u7279\u6027\u6062\u590d\u56deREAD WRITE\u524d\u7684\u72b6\u6001,\u4ee5\u4fbf\u7ee7\u7eed\u63a5\u6536Primary\u7aef\u53d1\u9001\u7684REDO\u5e76\u5e94\u7528;
\n3. REDO\u5e94\u7528:\u7269\u7406Standby\u901a\u8fc7REDO\u5e94\u7528\u6765\u4fdd\u6301\u4e0ePrimary\u6570\u636e\u5e93\u7684\u4e00\u81f4\u6027,\u6240\u8c13\u7684REDO\u5e94\u7528,\u5b9e\u8d28\u662f\u901a\u8fc7Oracle\u7684\u6062\u590d\u673a\u5236,\u5e94\u7528\u5f52\u6863\u6587\u4ef6(\u6216Standby Redologs\u6587\u4ef6)\u4e2d\u7684REDO\u6570\u636e.\u6062\u590d\u64cd\u4f5c\u5c5e\u4e8e\u5757\u5bf9\u5757\u7684\u5e94\u7528.\u5982\u679c\u6b63\u5728\u6267\u884cREDO\u5e94\u7528\u7684\u64cd\u4f5c,Oracle\u6570\u636e\u5e93\u5c31\u4e0d\u80fd\u88abOpen;
\n4. READ ONLY\u6a21\u5f0f\u6253\u5f00:\u4ee5READ ONLY\u6a21\u5f0f\u6253\u5f00\u540e,\u53ef\u4ee5\u5728Standby\u6570\u636e\u5e93\u6267\u884c\u67e5\u8be2\u6216\u5907\u4efd\u7b49\u64cd\u4f5c(\u53d8\u76f8\u51cf\u8f7bPrimary\u6570\u636e\u5e93\u538b\u529b).\u6b64\u65f6Standby\u6570\u636e\u5e93\u4ecd\u7136\u80fd\u591f\u7ee7\u7eed\u63a5\u6536Primary\u6570\u636e\u5e93\u53d1\u9001\u7684REDO\u6570\u636e,\u4e0d\u8fc7\u5e76\u4e0d\u4f1a\u5e94\u7528,\u76f4\u5230Standby\u6570\u636e\u5e93\u91cd\u65b0\u6062\u590dREDO\u5e94\u7528;
\n5. \u4e5f\u5c31\u662f\u8bf4\u5728READ ONLY\u6a21\u5f0f\u4e0b\u4e0d\u80fd\u6267\u884cREDO\u5e94\u7528,REDO\u5e94\u7528\u65f6\u6570\u636e\u5e93\u80af\u5b9a\u5904\u4e8e\u672a\u6253\u5f00\u72b6\u6001.\u5982\u679c\u9700\u8981\u7684\u8bdd,\u4f60\u53ef\u4ee5\u5728\u4e24\u79cd\u72b6\u6001\u95f4\u8f6c\u6362,\u5982\u5148\u5e94\u7528REDO,\u7136\u540e\u5c06\u6570\u636e\u5e93\u7f6e\u4e3aREAD ONLY\u72b6\u6001,\u9700\u8981\u4e0ePrimary\u540c\u6b65\u65f6\u518d\u6b21\u6267\u884c REDO\u5e94\u7528\u547d\u4ee4,\u5207\u6362\u56deREDO\u5e94\u7528\u72b6\u6001;
\n6. Oracle 11g\u7248\u672c\u4e2d\u589e\u5f3a\u7269\u7406Standby\u7684\u5e94\u7528\u529f\u80fd,\u572811g\u7248\u672c\u4e2d,\u7269\u7406Standby\u53ef\u4ee5\u5728OPEN READ ONLY\u6a21\u5f0f\u4e0b\u7ee7\u7eed\u5e94\u7528REDO\u6570\u636e,\u8fd9\u5c31\u6781\u5927\u5730\u63d0\u5347\u4e86\u7269\u7406Standby\u6570\u636e\u5e93\u7684\u5e94\u7528\u573a\u5408;
\n7. READ WRITE\u6a21\u5f0f\u6253\u5f00:\u5982\u679c\u4ee5READ WRITE\u6a21\u5f0f\u6253\u5f00,\u90a3\u4e48Standby\u6570\u636e\u5e93\u5c06\u6682\u505c\u4ecePrimary\u6570\u636e\u5e93\u63a5\u6536REDO\u6570\u636e,\u5e76\u4e14\u6682\u65f6\u5931\u53bb\u707e\u96be\u4fdd\u62a4\u7684\u529f\u80fd.\u5f53\u7136,\u4ee5READ WRITE\u6a21\u5f0f\u6253\u5f00\u4e5f\u5e76\u975e\u4e00\u65e0\u662f\u5904,\u5982\u4f60\u53ef\u80fd\u9700\u8981\u4e34\u65f6\u8c03\u8bd5\u4e00\u4e9b\u6570\u636e,\u4f46\u53c8\u4e0d\u65b9\u4fbf\u5728\u6b63\u5f0f\u5e93\u4e2d\u64cd\u4f5c,\u90a3\u5c31\u53ef\u4ee5\u4e34\u65f6\u5c06Standby\u6570\u636e\u5e93\u7f6e\u4e3aREAD WRITE\u6a21\u5f0f,\u64cd\u4f5c\u5b8c\u4e4b\u540e\u5c06\u6570\u636e\u5e93\u95ea\u56de\u5230\u64cd\u4f5c\u524d\u7684\u72b6\u6001(\u95ea\u56de\u4e4b\u540e,Data Guard\u4f1a\u81ea\u52a8\u540c\u6b65,\u4e0d\u9700\u8981\u91cd\u5efa\u7269\u7406Standby,\u4e0d\u8fc7\u5982\u679c\u4ece\u53e6\u4e00\u4e2a\u65b9\u5411\u770b,\u6ca1\u6709\u542f\u52a8\u95ea\u56de,\u90a3\u5c31\u56de\u4e0d\u5230READ WRITE\u524d\u7684\u72b6\u6001\u4e86);
\n8. \u7269\u7406Standby\u7279\u70b9\u5982\u4e0b:
\n1. \u707e\u96be\u6062\u590d\u53ca\u9ad8\u53ef\u7528\u6027:\u7269\u7406Standby\u63d0\u4f9b\u4e86\u4e00\u4e2a\u5065\u5168,\u9ad8\u6548\u7684\u707e\u96be\u6062\u590d,\u4ee5\u53ca\u9ad8\u53ef\u7528\u6027\u7684\u89e3\u51b3\u65b9\u6848.\u66f4\u52a0\u6613\u4e8e\u7ba1\u7406switchover\/failover\u89d2\u8272\u8f6c\u6362\u53ca\u5728\u66f4\u77ed\u7684\u8ba1\u5212\u5185\u6216\u8ba1\u5212\u5916\u505c\u673a\u65f6\u95f4;
\n2. \u6570\u636e\u4fdd\u62a4:\u4f7f\u7528\u7269\u7406Standby\u6570\u636e\u5e93,DG\u80fd\u591f\u786e\u4fdd\u5373\u4f7f\u9762\u5bf9\u65e0\u6cd5\u9884\u6599\u7684\u707e\u5bb3\u4e5f\u80fd\u591f\u4e0d\u4e22\u5931\u6570\u636e.\u524d\u9762\u4e5f\u63d0\u5230\u7269\u7406Standby\u662f\u57fa\u4e8e\u5757\u5bf9\u5757\u7684\u590d\u5236,\u56e0\u6b64\u4e0e\u5bf9\u8c61,\u8bed\u53e5\u65e0\u5173,Primary\u6570\u636e\u5e93\u4e0a\u6709\u4ec0\u4e48,\u7269\u7406Standby\u6570\u636e\u5e93\u7aef\u4e5f\u4f1a\u6709\u4ec0\u4e48;
\n3. \u5206\u62c5Primary\u6570\u636e\u5e93\u538b\u529b:\u901a\u8fc7\u5c06\u4e00\u4e9b\u5907\u4efd\u4efb\u52a1,\u4ec5\u67e5\u8be2\u7684\u9700\u6c42\u8f6c\u79fb\u5230\u7269\u7406Standby\u6570\u636e\u5e93,\u53ef\u4ee5\u6709\u6548\u8282\u7701Primary\u6570\u636e\u5e93\u7684CPU\u53caI\/O\u8d44\u6e90;
\n4. \u63d0\u5347\u6027\u80fd:\u7269\u7406Standby\u6240\u4f7f\u7528\u7684REDO\u5e94\u7528\u6280\u672f\u4f7f\u7528\u6700\u5e95\u5c42\u7684\u6062\u590d\u673a\u5236,\u8fd9\u79cd\u673a\u5236\u80fd\u591f\u7ed5\u8fc7SQL\u7ea7\u4ee3\u7801\u5c42,\u56e0\u6b64\u6548\u7387\u6700\u9ad8;
\n2. \u903b\u8f91Standby
\n1. \u903b\u8f91Standby\u4e5f\u8981\u901a\u8fc7Primary\u6570\u636e\u5e93(\u6216\u5176\u5907\u4efd,\u6216\u5176\u590d\u5236\u5e93,\u5982\u7269\u7406Standby)\u521b\u5efa,\u56e0\u6b64\u5728\u521b\u5efa\u4e4b\u521d\u4e0e\u7269\u7406Standby\u6570\u636e\u5e93\u7c7b\u4f3c.\u4e0d\u8fc7\u7531\u4e8e\u903b\u8f91Standby\u901a\u8fc7SQL\u5e94\u7528\u7684\u65b9\u5f0f\u5e94\u7528REDO\u6570\u636e, \u56e0\u6b64\u903b\u8f91Standby\u7684\u7269\u7406\u6587\u4ef6\u7ed3\u6784,\u751a\u81f3\u6570\u636e\u7684\u903b\u8f91\u7ed3\u6784\u90fd\u53ef\u4ee5\u4e0ePrimary\u4e0d\u4e00\u81f4;
\n2. \u4e0e\u7269\u7406Standby\u4e0d\u540c,\u903b\u8f91Standby\u6b63\u5e38\u60c5\u51b5\u4e0b\u662f\u4ee5READ WRITE\u6a21\u5f0f\u6253\u5f00,\u7528\u6237\u53ef\u4ee5\u5728\u4efb\u4f55\u65f6\u5019\u8bbf\u95ee\u903b\u8f91Standby\u6570\u636e\u5e93,\u5c31\u662f\u8bf4\u903b\u8f91 Standby\u662f\u5728OPEN\u72b6\u6001\u6267\u884cSQL\u5e94\u7528.\u540c\u6837\u6709\u5229\u4e5f\u6709\u5f0a,\u7531\u4e8eSQL\u5e94\u7528\u81ea\u8eab\u7279\u70b9,\u903b\u8f91Standby\u5bf9\u4e8e\u67d0\u4e9b\u6570\u636e\u7c7b\u578b\u53ca\u4e00\u4e9bDDL\/DML\u8bed\u53e5\u4f1a\u6709\u64cd\u4f5c\u4e0a\u7684\u9650\u5236.\u53ef\u4ee5\u5728\u89c6\u56feDBA_LOGSTDBY_UNSUPPORTED\u4e2d\u67e5\u770b\u4e0d\u652f\u6301\u7684\u6570\u636e\u7c7b\u578b,\u5982\u679c\u4f7f\u7528\u4e86\u8fd9\u79cd\u6570\u636e\u7c7b\u578b,\u5219\u4e0d\u80fd\u4fdd\u8bc1\u6570\u636e\u5e93\u5b8c\u5168\u4e00\u81f4;
\n3. \u9664\u4e86\u4e0a\u8ff0\u7269\u7406Standby\u4e2d\u63d0\u5230\u7684\u7c7b\u4f3c\u707e\u96be\u6062\u590d,\u9ad8\u53ef\u7528\u6027\u53ca\u6570\u636e\u4fdd\u62a4\u7b49\u7279\u70b9\u4e4b\u5916,\u903b\u8f91Standby\u8fd8\u6709\u4e0b\u5217\u4e00\u4e9b\u7279\u70b9:
\n1. \u6709\u6548\u5730\u5229\u7528\u5907\u673a\u7684\u786c\u4ef6\u8d44\u6e90:\u9664\u707e\u96be\u6062\u590d\u5916,\u903b\u8f91Standby\u6570\u636e\u5e93\u8fd8\u53ef\u7528\u4e8e\u5176\u4ed6\u4e1a\u52a1\u9700\u6c42.\u5982\u901a\u8fc7\u5728Standby\u6570\u636e\u5e93\u521b\u5efa\u989d\u5916\u7684\u7d22\u5f15,\u7269\u5316\u89c6\u56fe\u7b49\u63d0\u9ad8\u67e5\u8be2\u6027\u80fd\u5e76\u6ee1\u8db3\u7279\u5b9a\u4e1a\u52a1\u9700\u8981;\u53c8\u5982\u521b\u5efa\u65b0\u7684SCHEMA(\u8be5SCHEMA\u5728Primary\u6570\u636e\u5e93\u7aef\u5e76\u4e0d\u5b58\u5728),\u7136\u540e\u5728\u8fd9\u4e9bSCHEMA\u4e2d\u6267\u884c\u90a3\u4e9b\u4e0d\u9002\u4e8e\u5728Primary\u6570\u636e\u5e93\u7aef\u6267\u884c\u7684DDL\u6216\u8005DML\u64cd\u4f5c\u7b49;
\n2. \u5206\u62c5Primary\u6570\u636e\u5e93\u538b\u529b:\u903b\u8f91Standby\u6570\u636e\u5e93\u53ef\u4ee5\u5728\u4fdd\u6301\u4e0ePrimary\u540c\u6b65\u65f6\u4ecd\u7136\u7f6e\u4e8e\u6253\u5f00\u72b6\u6001,\u8fd9\u4f7f\u5f97\u903b\u8f91Standby\u6570\u636e\u5e93\u80fd\u591f\u540c\u65f6\u7528\u4e8e\u6570\u636e\u4fdd\u62a4\u548c\u62a5\u8868\u64cd\u4f5c,\u4ece\u800c\u5c06\u4e3b\u6570\u636e\u5e93\u4ece\u62a5\u8868\u548c\u67e5\u8be2\u4efb\u52a1\u4e2d\u89e3\u8131\u51fa\u6765,\u8282\u7ea6\u5b9d\u8d35\u7684CPU\u548cI\/O\u8d44\u6e90;
\n3. \u5e73\u6ed1\u5347\u7ea7:\u53ef\u4ee5\u901a\u8fc7\u903b\u8f91Standby\u6765\u5b9e\u73b0\u5982\u8de8\u7248\u672c\u5347\u7ea7,\u4e3a\u6570\u636e\u5e93\u6253\u8865\u4e01\u7b49\u64cd\u4f5c.\u5e94\u8be5\u8bf4\u5e94\u7528\u7684\u7a7a\u95f4\u5f88\u5927,\u800c\u5e26\u6765\u7684\u98ce\u9669\u5374\u5f88\u5c0f(\u524d\u63d0\u662f\u5982\u679c\u4f60\u62e5\u6709\u8db3\u591f\u7684\u6280\u672f\u5b9e\u529b.\u53e6\u5916\u867d\u7136\u7269\u7406Standby\u4e5f\u80fd\u591f\u5b9e\u73b0\u4e00\u4e9b\u5347\u7ea7\u64cd\u4f5c,\u4f46\u5982\u679c\u8de8\u5e73\u53f0\u7684\u8bdd\u6050\u6015\u5c31\u529b\u4e0d\u4ece\u5fc3\u4e86,\u6240\u4ee5\u6b64\u9879\u6ca1\u6709\u4f5c\u4e3a\u7269\u7406Standby\u7684\u7279\u70b9\u5217\u51fa),\u6211\u4e2a\u4eba\u8ba4\u4e3a\u8fd9\u662f\u4e00\u79cd\u503c\u5f97\u53ef\u884c\u7684\u5728\u7ebf\u7684\u6eda\u52a8\u7684\u5e73\u6ed1\u7684\u5347\u7ea7\u65b9\u5f0f,\u5982\u679c\u4f60\u7684\u5e94\u7528\u652f\u6301\u521b\u5efa\u903b\u8f91Standby\u7684\u8bdd;
\n9. Log\u5e94\u7528\u670d\u52a1(Log Apply Services)
\n1. Data Guard\u901a\u8fc7\u5e94\u7528REDO\u7ef4\u6301Primary\u6570\u636e\u5e93\u4e0e\u5404Standby\u6570\u636e\u5e93\u4e4b\u95f4\u7684\u4e00\u81f4\u6027,\u5728\u540e\u53f0\u9ed8\u9ed8\u65e0\u95fb\u5730\u652f\u6491\u7740\u7684\u5c31\u662f\u4f20\u8bf4\u4e2d\u7684Log\u5e94\u7528\u670d\u52a1.Log\u5e94\u7528\u670d\u52a1\u53c8\u5206\u4ee5\u4e0b\u4e24\u79cd\u65b9\u5f0f:
\n1. REDO\u5e94\u7528:\u7269\u7406Standby\u6570\u636e\u5e93\u4e13\u7528,\u901a\u8fc7\u4ecb\u8d28\u6062\u590d\u7684\u65b9\u5f0f\u4fdd\u6301\u4e0ePrimary\u6570\u636e\u5e93\u7684\u540c\u6b65;
\n2. SQL\u5e94\u7528:\u903b\u8f91Standby\u6570\u636e\u5e93\u4e13\u7528,\u6838\u5fc3\u662f\u901a\u8fc7LogMiner\u5206\u6790\u51faSQL\u8bed\u53e5\u5728Standby\u7aef\u6267\u884c;
\n3. \u56e0\u6b64\u7269\u7406Standby\u5728\u5e94\u7528REDO\u6570\u636e\u65f6\u5fc5\u987b\u662fMOUNT\u72b6\u6001,\u800c\u903b\u8f91Standby\u5219\u662f\u4ee5READ WRITE\u6a21\u5f0f\u6253\u5f00\u5e76\u5e94\u7528REDO\u6570\u636e,\u4e0d\u8fc7\u88ab\u7ef4\u62a4\u7684\u5bf9\u8c61\u9ed8\u8ba4\u5904\u4e8e\u53ea\u8bfb\u72b6\u6001,\u65e0\u6cd5\u5728\u903b\u8f91Standby\u7aef\u76f4\u63a5\u4fee\u6539;
\n2. Log\u5e94\u7528\u670d\u52a1\u914d\u7f6e\u9009\u9879:
\n1. \u9ed8\u8ba4\u60c5\u51b5\u4e0b,Log\u5e94\u7528\u670d\u52a1\u4f1a\u7b49\u5f85\u5355\u4e2a\u5f52\u6863\u6587\u4ef6\u5168\u90e8\u63a5\u6536\u4e4b\u540e\u518d\u542f\u52a8\u5e94\u7528,\u5982\u679cStandby\u6570\u636e\u5e93\u914d\u7f6e\u4e86Standby Redologs,\u5c31\u53ef\u4ee5\u6253\u5f00\u5b9e\u65f6\u5e94\u7528(Real-Time Apply),\u8fd9\u6837Data Guard\u5c31\u4e0d\u9700\u8981\u518d\u7b49\u5f85\u63a5\u6536\u5b8c\u5f52\u6863\u6587\u4ef6,\u53ea\u8981RFS\u8fdb\u7a0b\u5c06REDO\u6570\u636e\u5199\u5165Standby Redologs,\u5373\u53ef\u901a\u8fc7MRP\/LSP\u5b9e\u65f6\u5199\u5411Standby\u6570\u636e\u5e93;
\n2. REDO\u6570\u636e\u5b9e\u65f6\u5e94\u7528:
\n1. \u542f\u52a8\u5b9e\u65f6\u5e94\u7528\u7684\u4f18\u52bf\u5728\u4e8e,REDO\u6570\u636e\u4e0d\u9700\u8981\u7b49\u5f85\u5f52\u6863\u5b8c\u6210,\u63a5\u6536\u5230\u5373\u53ef\u88ab\u5e94\u7528,\u8fd9\u6837\u6267\u884c\u89d2\u8272\u5207\u6362\u65f6,\u64cd\u4f5c\u80fd\u591f\u6267\u884c\u5f97\u66f4\u5feb,\u56e0\u4e3a\u65e5\u5fd7\u662f\u88ab\u5373\u65f6\u5e94\u7528\u7684;
\n2. \u8981\u542f\u52a8\u5b9e\u65f6\u5e94\u7528\u4e5f\u7b80\u5355,\u524d\u63d0 Standby\u6570\u636e\u5e93\u7aef\u914d\u7f6e\u4e86Standby Redologs;
\n3. \u7269\u7406Standby\u8981\u542f\u7528\u5b9e\u65f6\u5e94\u7528,\u8981\u5728\u542f\u52a8REDO\u5e94\u7528\u7684\u8bed\u53e5\u540e\u9644\u52a0USING CURRENT LOGFIE\u5b50\u53e5,\u4f8b\u5982:SQL>ALTER DATABASE RECOVER MANAGED STANDBY DATABASE USING CURRENT LOGFILE;
\n4. \u903b\u8f91Standby\u8981\u542f\u7528\u5b9e\u65f6\u5e94\u7528,\u53ea\u9700\u8981\u5728\u542f\u52a8REDO\u5e94\u7528\u7684\u8bed\u53e5\u540e\u9644\u52a0IMMEDIATE\u5b50\u53e5\u5373\u53ef,\u4f8b\u5982:SQL> ALTER DATABASE START LOGICAL STANDBY APPLY IMMEDIATE;
\n3. REDO\u6570\u636e\u5ef6\u8fdf\u5e94\u7528:
\n1. \u6709\u5b9e\u65f6\u5c31\u6709\u5ef6\u8fdf,\u67d0\u4e9b\u60c5\u51b5\u4e0b\u4f60\u53ef\u80fd\u4e0d\u5e0c\u671bStandby\u6570\u636e\u5e93\u4e0ePrimary\u592a\u8fc7\u540c\u6b65,\u90a3\u5c31\u53ef\u4ee5\u5728Primary\u6570\u636e\u5e93\u7aef\u53d1\u9001REDO\u6570\u636e\u7684\u76f8\u5e94LOG_ARCHIVE_DEST_n\u53c2\u6570\u4e2d\u6307\u5b9aDELAY\u5c5e\u6027(\u5355\u4f4d\u4e3a\u5206\u949f,\u5982\u679c\u6307\u5b9a\u4e86DELAY\u5c5e\u6027,\u4f46\u6ca1\u6709\u6307\u5b9a\u503c,\u5219\u9ed8\u8ba4\u662f30\u5206\u949f).(\u6ce8\u610f:\u8be5\u5c5e\u6027\u5e76\u4e0d\u662f\u8bf4\u5ef6\u8fdf\u53d1\u9001REDO\u6570\u636e\u5230Standby,\u800c\u662f\u6307\u660e\u5f52\u6863\u5230Standby\u540e,\u5f00\u59cb\u5e94\u7528\u7684\u65f6\u95f4;)
\n2. \u4f8b\u5982:\u8bbe\u7f6eLOG_ARCHIVE_DEST_3\u7684DELAY\u5c5e\u6027\u4e3a15\u5206\u949f:SQL> ALTER SYSTEM SET LOG_ARCHIVE_DEST_3=’SERVICE= ARCH VALID_FOR=(ONLINE_LOGFILES, PRIMARY_ROLE) DB_UNIQUE_NAME=Dave DELAY=15′;
\n3. \u5982\u679cDBA\u5728\u542f\u52a8REDO\u5e94\u7528\u65f6\u6307\u5b9a\u4e86\u5b9e\u65f6\u5e94\u7528,\u90a3\u4e48\u5373\u4f7f\u5728LOG_ ARCHIVE_DEST_n\u53c2\u6570\u4e2d\u6307\u5b9a\u4e86DELAY\u5c5e\u6027,Standby\u6570\u636e\u5e93\u4e5f\u4f1a\u5ffd\u7565DELAY\u5c5e\u6027;
\n4. \u53e6\u5916,Standby\u7aef\u8fd8\u53ef\u4ee5\u5728\u542f\u52a8REDO\u5e94\u7528\u65f6,\u901a\u8fc7\u9644\u52a0 NODELAY\u5b50\u53e5\u7684\u65b9\u5f0f,\u53d6\u6d88\u5ef6\u8fdf\u5e94\u7528;
\n5. \u7269\u7406Standby\u53ef\u4ee5\u901a\u8fc7\u4e0b\u5217\u8bed\u53e5\u53d6\u6d88\u5ef6\u8fdf\u5e94\u7528:SQL> ALTER DATABASE RECOVER MANAGED STANDBY DATABASE NODELAY;
\n6. \u903b\u8f91Standby\u53ef\u4ee5\u901a\u8fc7\u4e0b\u5217\u8bed\u53e5\u53d6\u6d88\u5ef6\u8fdf\u5e94\u7528:SQL> ALTER DATABASE START LOGICAL STANDBY APPLY NODELAY;
\n4. \u4e00\u822c\u8bbe\u7f6e\u5ef6\u8fdf\u5e94\u7528\u7684\u9700\u6c42\u90fd\u662f\u57fa\u4e8e\u5bb9\u9519\u65b9\u9762\u7684\u8003\u8651,\u5982Primary\u6570\u636e\u5e93\u7aef\u7531\u4e8e\u8bef\u64cd\u4f5c,\u6570\u636e\u88ab\u610f\u5916\u4fee\u6539\u6216\u5220\u9664,\u53ea\u8981Standby\u6570\u636e\u5e93\u5c1a\u672a\u5e94\u7528\u8fd9\u4e9b\u4fee\u6539,\u4f60\u5c31\u53ef\u4ee5\u5feb\u901f\u4eceStandby\u6570\u636e\u5e93\u4e2d\u6062\u590d\u8fd9\u90e8\u5206\u6570\u636e.\u4e0d\u8fc7\u81eaOracle\u4ece9i\u7248\u672c\u5f00\u59cb\u63d0\u4f9bFLASHBACK\u7279\u6027\u4e4b\u540e,\u5bf9\u4e8e\u8bef\u64cd\u4f5c\u4f7f\u7528FLASHBACK\u7279\u6027\u8fdb\u884c\u6062\u590d,\u663e\u7136\u66f4\u52a0\u65b9\u4fbf\u5feb\u6377,\u56e0\u6b64DELAY\u65b9\u5f0f\u5ef6\u8fdf\u5e94\u7528\u5df2\u7ecf\u975e\u5e38\u5c11\u89c1\u4e86;
\n3. \u5e94\u7528REDO\u6570\u636e\u5230Standby\u6570\u636e\u5e93:
\n1. \u7269\u7406Standby\u5e94\u7528REDO\u6570\u636e:
\n1. \u7269\u7406Standby\u542f\u52a8REDO\u5e94\u7528,\u6570\u636e\u5e93\u8981\u5904\u4e8eMOUNT\u72b6\u6001;
\n2. \u524d\u53f0\u5e94\u7528:SQL> ALTER DATABASE RECOVER MANAGED STANDBY DATABASE;\u8bed\u53e5\u6267\u884c\u5b8c\u6210\u540e,\u4e0d\u4f1a\u5c06\u63a7\u5236\u6743\u8fd4\u56de\u5230\u547d\u4ee4\u884c\u7a97\u53e3,\u9664\u975e\u4f60\u624b\u52a8\u4e2d\u6b62\u5e94\u7528.\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\u5982\u679c\u8fd8\u9700\u8981\u5bf9\u6570\u636e\u5e93\u8fdb\u884c\u64cd\u4f5c,\u53ea\u80fd\u65b0\u5f00\u4e00\u4e2a\u547d\u4ee4\u884c\u8fde\u63a5,\u5728Oracle 8i\u521a\u63a8\u51faStandby\u7279\u6027\u65f6(\u90a3\u65f6\u4e0d\u53ebData Guard),\u53ea\u63d0\u4f9b\u4e86\u8fd9\u79cd\u65b9\u5f0f;
\n3. \u540e\u53f0\u5e94\u7528:SQL> ALTER DATABASE RECOVER MANAGED STANDBY DATABASE DISCONNECT;\u8fd9\u662f\u73b0\u5728\u6bd4\u8f83\u901a\u7528\u7684\u65b9\u5f0f,\u8bed\u53e5\u6267\u884c\u5b8c\u540e,\u63a7\u5236\u6743\u81ea\u52a8\u8fd4\u56de\u5230\u5f53\u524d\u7684\u547d\u4ee4\u884c\u6a21\u5f0f,REDO\u5e94\u7528\u4ee5\u540e\u53f0\u8fdb\u7a0b\u8fd0\u884c.
\n4. \u542f\u52a8\u5b9e\u65f6\u5e94\u7528:\u9644\u52a0USING CURRENT LOGFILE\u5b50\u53e5\u5373\u53ef:SQL> ALTER DATABASE RECOVER MANAGED STANDBY DATABASE USING CURRENT LOGFILE;
\n5. \u5982\u679c\u8981\u505c\u6b62REDO\u5e94\u7528:\u6267\u884c\u4e0b\u5217\u8bed\u53e5\u5373\u53ef:SQL> ALTER DATABASE RECOVER MANAGED STANDBY DATABASE CANCEL;
\n2. \u903b\u8f91Standby\u5e94\u7528REDO\u6570\u636e:
\n1. SQL\u5e94\u7528\u7684\u539f\u7406\u662f\u5c06\u63a5\u6536\u5230\u7684REDO\u6570\u636e\u8f6c\u6362\u6210SQL\u8bed\u53e5\u5728\u903b\u8f91Standby\u6570\u636e\u5e93\u7aef\u6267\u884c,\u56e0\u6b64\u903b\u8f91Standby\u9700\u8981\u542f\u52a8\u81f3OPEN\u72b6\u6001;
\n2. \u542f\u52a8SQL\u5e94\u7528:\u903b\u8f91Standby\u6570\u636e\u5e93\u542f\u52a8SQL\u5e94\u7528\u6ca1\u6709\u524d\/\u540e\u53f0\u8fd0\u884c\u4e4b\u8bf4,\u8bed\u53e5\u6267\u884c\u5b8c\u4e4b\u540e,\u63a7\u5236\u6743\u5c31\u4f1a\u81ea\u52a8\u8fd4\u56de\u5f53\u524d\u547d\u4ee4\u884c\u7a97\u53e3;
\n3. \u8981\u542f\u52a8SQL\u5e94\u7528:\u76f4\u63a5\u6267\u884c\u4e0b\u5217\u8bed\u53e5\u5373\u53ef:SQL> ALTER DATABASE START LOGICAL STANDBY APPLY;
\n4. \u5982\u679c\u8981\u542f\u52a8\u5b9e\u65f6\u5e94\u7528:\u9644\u52a0IMMEDIATE\u5b50\u53e5\u5373\u53ef,\u4f8b\u5982:SQL> ALTER DATABASE START LOGICAL STANDBY APPLY IMMEDIATE;
\n5. \u505c\u6b62SQL\u5e94\u7528:\u5982SQL> ALTER DATABASE STOP LOGICAL STANDBY APPLY;
\n6. \u7531\u4e8e\u662f\u6267\u884cSQL\u8bed\u53e5\u7684\u65b9\u5f0f\u5e94\u7528REDO\u6570\u636e,\u56e0\u6b64\u4e0a\u8ff0\u8bed\u53e5\u7684\u6267\u884c\u9700\u8981\u7b49\u5f85\u5f53\u524d\u6267\u884c\u7684SQL\u89e6\u53d1\u7684\u4e8b\u52a1\u7ed3\u675f,\u624d\u80fd\u771f\u6b63\u505c\u6b62REDO\u5e94\u7528\u7684\u72b6\u6001;
\n7. \u5982\u679c\u4e0d\u8003\u8651\u4e8b\u52a1\u6267\u884c\u60c5\u51b5,\u9a6c\u4e0a\u505c\u6b62REDO\u5e94\u7528,\u53ef\u4ee5\u901a\u8fc7\u4e0b\u5217\u7684\u8bed\u53e5\u6765\u5b8c\u6210:SQL> ALTER DATABASE ABORT LOGICAL STANDBY APPLY;<\/oracle_net_name><\/db_unique_name2><\/db_unique_name1><\/db_unique_nama2><\/db_unique_nama1><\/db_unique_name><\/oracle_net_name><\/p>\n","protected":false},"excerpt":{"rendered":"

DataGuard \u7406\u8bba\u77e5\u8bc6 1. Oracle\u7684\u9ad8\u7ea7\u7279\u6027: 1. RAC, Data Gurad, Stre […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6],"tags":[],"class_list":["post-1447","post","type-post","status-publish","format-standard","hentry","category-oracle"],"_links":{"self":[{"href":"http:\/\/www.royalwzy.com\/index.php?rest_route=\/wp\/v2\/posts\/1447","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.royalwzy.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.royalwzy.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.royalwzy.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.royalwzy.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1447"}],"version-history":[{"count":1,"href":"http:\/\/www.royalwzy.com\/index.php?rest_route=\/wp\/v2\/posts\/1447\/revisions"}],"predecessor-version":[{"id":1448,"href":"http:\/\/www.royalwzy.com\/index.php?rest_route=\/wp\/v2\/posts\/1447\/revisions\/1448"}],"wp:attachment":[{"href":"http:\/\/www.royalwzy.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1447"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.royalwzy.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1447"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.royalwzy.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1447"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}