{"id":96272,"date":"2024-10-20T08:02:17","date_gmt":"2024-10-20T00:02:17","guid":{"rendered":"https:\/\/server.hk\/cnblog\/96272\/"},"modified":"2024-10-20T08:02:17","modified_gmt":"2024-10-20T00:02:17","slug":"oracle%e9%87%8d%e5%81%9a%e6%97%a5%e8%aa%8c%e6%96%87%e4%bb%b6%e7%ae%a1%e7%90%86%e6%8a%80%e5%b7%a7%e5%bd%99%e7%b8%bd","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/96272\/","title":{"rendered":"Oracle\u91cd\u505a\u65e5\u8a8c\u6587\u4ef6\u7ba1\u7406\u6280\u5de7\u5f59\u7e3d"},"content":{"rendered":"

Oracle\u91cd\u505a\u65e5\u8a8c\u6587\u4ef6\u7ba1\u7406\u6280\u5de7\u5f59\u7e3d<\/h1>\n

\u5728Oracle\u6578\u64da\u5eab\u4e2d\uff0c\u91cd\u505a\u65e5\u8a8c\u6587\u4ef6\uff08Redo Log Files\uff09\u662f\u78ba\u4fdd\u6578\u64da\u5b8c\u6574\u6027\u548c\u6062\u5fa9\u80fd\u529b\u7684\u91cd\u8981\u7d44\u4ef6\u3002\u9019\u4e9b\u65e5\u8a8c\u8a18\u9304\u4e86\u6240\u6709\u5c0d\u6578\u64da\u5eab\u7684\u66f4\u6539\uff0c\u7121\u8ad6\u662f\u63d2\u5165\u3001\u66f4\u65b0\u9084\u662f\u522a\u9664\u64cd\u4f5c\u3002\u6709\u6548\u7684\u91cd\u505a\u65e5\u8a8c\u6587\u4ef6\u7ba1\u7406\u4e0d\u50c5\u80fd\u63d0\u9ad8\u6578\u64da\u5eab\u7684\u6027\u80fd\uff0c\u9084\u80fd\u5728\u7cfb\u7d71\u6545\u969c\u6642\u5feb\u901f\u6062\u5fa9\u6578\u64da\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u4e00\u4e9b\u91cd\u505a\u65e5\u8a8c\u6587\u4ef6\u7684\u7ba1\u7406\u6280\u5de7\uff0c\u5e6b\u52a9\u6578\u64da\u5eab\u7ba1\u7406\u54e1\uff08DBA\uff09\u66f4\u597d\u5730\u7dad\u8b77\u548c\u512a\u5316Oracle\u6578\u64da\u5eab\u7684\u904b\u884c\u3002<\/p>\n

1. \u7406\u89e3\u91cd\u505a\u65e5\u8a8c\u7684\u7d50\u69cb<\/h2>\n

\u91cd\u505a\u65e5\u8a8c\u6587\u4ef6\u7531\u4e00\u7cfb\u5217\u7684\u91cd\u505a\u8a18\u9304\u7d44\u6210\uff0c\u9019\u4e9b\u8a18\u9304\u662f\u4ee5\u5faa\u74b0\u65b9\u5f0f\u5beb\u5165\u7684\u3002\u6bcf\u7576\u4e00\u500b\u91cd\u505a\u65e5\u8a8c\u6587\u4ef6\u5beb\u6eff\u5f8c\uff0cOracle\u6703\u81ea\u52d5\u5207\u63db\u5230\u4e0b\u4e00\u500b\u65e5\u8a8c\u6587\u4ef6\u3002\u4e86\u89e3\u9019\u4e00\u904e\u7a0b\u6709\u52a9\u65bcDBA\u5728\u8a2d\u8a08\u548c\u914d\u7f6e\u91cd\u505a\u65e5\u8a8c\u6642\u505a\u51fa\u660e\u667a\u7684\u6c7a\u7b56\u3002<\/p>\n

2. \u8a2d\u5b9a\u9069\u7576\u7684\u91cd\u505a\u65e5\u8a8c\u5927\u5c0f<\/h2>\n

\u91cd\u505a\u65e5\u8a8c\u7684\u5927\u5c0f\u5c0d\u6578\u64da\u5eab\u6027\u80fd\u6709\u76f4\u63a5\u5f71\u97ff\u3002\u904e\u5c0f\u7684\u65e5\u8a8c\u6587\u4ef6\u6703\u5c0e\u81f4\u983b\u7e41\u7684\u5207\u63db\uff0c\u589e\u52a0I\/O\u8ca0\u64d4\uff0c\u800c\u904e\u5927\u7684\u65e5\u8a8c\u6587\u4ef6\u5247\u53ef\u80fd\u5c0e\u81f4\u6062\u5fa9\u6642\u9593\u5ef6\u9577\u3002\u4e00\u822c\u5efa\u8b70\u6839\u64da\u6578\u64da\u5eab\u7684\u5de5\u4f5c\u8ca0\u8f09\u4f86\u8abf\u6574\u65e5\u8a8c\u6587\u4ef6\u7684\u5927\u5c0f\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0bSQL\u8a9e\u53e5\u4f86\u6aa2\u67e5\u7576\u524d\u91cd\u505a\u65e5\u8a8c\u7684\u5927\u5c0f\uff1a<\/p>\n

SELECT GROUP#, BYTES\/1024\/1024 AS SIZE_MB FROM V$LOG;<\/code><\/pre>\n
3. \u4f7f\u7528\u591a\u500b\u91cd\u505a\u65e5\u8a8c\u7d44<\/h2>\n
\u70ba\u4e86\u63d0\u9ad8\u6578\u64da\u5eab\u7684\u53ef\u7528\u6027\u548c\u6027\u80fd\uff0c\u5efa\u8b70\u4f7f\u7528\u591a\u500b\u91cd\u505a\u65e5\u8a8c\u7d44\u3002\u9019\u6a23\u53ef\u4ee5\u5728\u4e00\u500b\u65e5\u8a8c\u7d44\u5beb\u5165\u7684\u540c\u6642\uff0c\u53e6\u4e00\u500b\u65e5\u8a8c\u7d44\u53ef\u4ee5\u9032\u884c\u8b80\u53d6\uff0c\u5f9e\u800c\u6e1b\u5c11I\/O\u74f6\u9838\u3002\u4e00\u822c\u4f86\u8aaa\uff0c\u81f3\u5c11\u61c9\u8a72\u6709\u4e09\u500b\u91cd\u505a\u65e5\u8a8c\u7d44\uff0c\u4ee5\u78ba\u4fdd\u5728\u4e00\u500b\u65e5\u8a8c\u7d44\u640d\u58de\u7684\u60c5\u6cc1\u4e0b\uff0c\u6578\u64da\u5eab\u4ecd\u7136\u53ef\u4ee5\u6b63\u5e38\u904b\u884c\u3002<\/p>\n
4. \u5b9a\u671f\u76e3\u63a7\u91cd\u505a\u65e5\u8a8c\u7684\u4f7f\u7528\u60c5\u6cc1<\/h2>\n
\u5b9a\u671f\u76e3\u63a7\u91cd\u505a\u65e5\u8a8c\u7684\u4f7f\u7528\u60c5\u6cc1\u53ef\u4ee5\u5e6b\u52a9DBA\u53ca\u6642\u767c\u73fe\u6f5b\u5728\u7684\u554f\u984c\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0bSQL\u8a9e\u53e5\u4f86\u67e5\u770b\u91cd\u505a\u65e5\u8a8c\u7684\u4f7f\u7528\u60c5\u6cc1\uff1a<\/p>\n
SELECT LOG_NAME, STATUS, SWITCH_COUNT, FIRST_CHANGE#, NEXT_CHANGE# FROM V$LOG;<\/code><\/pre>\n
\u9019\u4e9b\u4fe1\u606f\u53ef\u4ee5\u5e6b\u52a9DBA\u4e86\u89e3\u91cd\u505a\u65e5\u8a8c\u7684\u5207\u63db\u983b\u7387\u548c\u7576\u524d\u72c0\u614b\uff0c\u5f9e\u800c\u505a\u51fa\u76f8\u61c9\u7684\u8abf\u6574\u3002<\/p>\n
5. \u8003\u616e\u4f7f\u7528\u91cd\u505a\u65e5\u8a8c\u58d3\u7e2e<\/h2>\n
\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\uff0c\u4f7f\u7528\u91cd\u505a\u65e5\u8a8c\u58d3\u7e2e\u53ef\u4ee5\u6709\u6548\u6e1b\u5c11\u5b58\u5132\u7a7a\u9593\u7684\u4f7f\u7528\u3002Oracle\u63d0\u4f9b\u4e86\u591a\u7a2e\u58d3\u7e2e\u6280\u8853\uff0c\u53ef\u4ee5\u6839\u64da\u5177\u9ad4\u9700\u6c42\u9078\u64c7\u5408\u9069\u7684\u65b9\u6848\u3002\u9019\u4e0d\u50c5\u80fd\u7bc0\u7701\u5b58\u5132\u7a7a\u9593\uff0c\u9084\u80fd\u63d0\u9ad8\u6578\u64da\u5eab\u7684\u6027\u80fd\u3002<\/p>\n
6. \u5b9a\u671f\u5099\u4efd\u91cd\u505a\u65e5\u8a8c<\/h2>\n
\u91cd\u505a\u65e5\u8a8c\u7684\u5099\u4efd\u662f\u78ba\u4fdd\u6578\u64da\u5b89\u5168\u7684\u91cd\u8981\u6b65\u9a5f\u3002\u5b9a\u671f\u5099\u4efd\u91cd\u505a\u65e5\u8a8c\u53ef\u4ee5\u9632\u6b62\u6578\u64da\u4e1f\u5931\uff0c\u4e26\u5728\u7cfb\u7d71\u6545\u969c\u6642\u5feb\u901f\u6062\u5fa9\u6578\u64da\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u4f86\u5099\u4efd\u91cd\u505a\u65e5\u8a8c\uff1a<\/p>\n
ALTER DATABASE BACKUP CONTROLFILE TO 'backup_location';<\/code><\/pre>\n
\u7e3d\u7d50<\/h2>\n
\u6709\u6548\u7684Oracle\u91cd\u505a\u65e5\u8a8c\u6587\u4ef6\u7ba1\u7406\u5c0d\u65bc\u6578\u64da\u5eab\u7684\u6027\u80fd\u548c\u53ef\u9760\u6027\u81f3\u95dc\u91cd\u8981\u3002\u901a\u904e\u7406\u89e3\u91cd\u505a\u65e5\u8a8c\u7684\u7d50\u69cb\u3001\u8a2d\u5b9a\u9069\u7576\u7684\u5927\u5c0f\u3001\u4f7f\u7528\u591a\u500b\u65e5\u8a8c\u7d44\u3001\u5b9a\u671f\u76e3\u63a7\u4f7f\u7528\u60c5\u6cc1\u3001\u8003\u616e\u58d3\u7e2e\u4ee5\u53ca\u5b9a\u671f\u5099\u4efd\uff0cDBA\u53ef\u4ee5\u78ba\u4fdd\u6578\u64da\u5eab\u7684\u7a69\u5b9a\u904b\u884c\u3002\u82e5\u60a8\u9700\u8981\u9032\u4e00\u6b65\u4e86\u89e3\u5982\u4f55\u512a\u5316\u60a8\u7684\u6578\u64da\u5eab\u74b0\u5883\uff0c\u8acb\u8003\u616e\u4f7f\u7528\u6211\u5011\u7684\u9999\u6e2fVPS<\/a>\u89e3\u6c7a\u65b9\u6848\uff0c\u70ba\u60a8\u7684\u696d\u52d9\u63d0\u4f9b\u7a69\u5b9a\u7684\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u638c\u63e1Oracle\u91cd\u505a\u65e5\u8a8c\u6587\u4ef6\u7ba1\u7406\u6280\u5de7\uff0c\u63d0\u5347\u6578\u64da\u5b89\u5168\u6027\u8207\u6027\u80fd\uff0c\u78ba\u4fdd\u9ad8\u6548\u7684\u6578\u64da\u6062\u5fa9\u8207\u7cfb\u7d71\u7a69\u5b9a\u6027\u3002<\/p>\n","protected":false},"author":0,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-96272","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/96272","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=96272"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/96272\/revisions"}],"predecessor-version":[{"id":96273,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/96272\/revisions\/96273"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=96272"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=96272"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=96272"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}