{"id":670,"date":"2016-06-01T12:24:42","date_gmt":"2016-06-01T12:24:42","guid":{"rendered":"http:\/\/www.dbafox.com\/?p=670"},"modified":"2016-06-01T12:24:42","modified_gmt":"2016-06-01T12:24:42","slug":"oracle-flashback-set-off-and-on-to-purge-standby-database-flashback-log-files","status":"publish","type":"post","link":"https:\/\/dbafox.com\/?p=670","title":{"rendered":"Oracle &#8211; Flashback &#8211; set off and on to purge standby database flashback log files"},"content":{"rendered":"<pre>\r\n1. Stop redo to standby\r\n2. Set flashback off on standby\r\n3. Set flashback on on standby\r\n4. Start redo apply to standby\r\n\r\nOn standby\r\n\r\nidle>select * from v$flash_recovery_area_usage;\r\n\r\nFILE_TYPE               PERCENT_SPACE_USED PERCENT_SPACE_RECLAIMABLE NUMBER_OF_FILES     CON_ID\r\n----------------------- ------------------ ------------------------- --------------- ----------\r\nCONTROL FILE                             0                         0               0          0\r\nREDO LOG                                 0                         0               0          0\r\nARCHIVED LOG                           .16                         0               4          0\r\nBACKUP PIECE                           .01                         0               1          0\r\nIMAGE COPY                               0                         0               0          0\r\nFLASHBACK LOG                        46.95                         0              64          0\r\nFOREIGN ARCHIVED LOG                     0                         0               0          0\r\nAUXILIARY DATAFILE COPY                  0                         0               0          0\r\n\r\nOn Primary:\r\nUse dgmgrl:\r\nDGMGRL> connect sys@ORCL\r\nPassword:\r\nConnected as SYSDBA.\r\nDGMGRL> edit database orclstby set state='apply-off';\r\nSucceeded.\r\n\r\nOn standby:\r\nidle>ALTER DATABASE FLASHBACK OFF;\r\n\r\nDatabase altered.\r\n\r\nidle>alter database flashback on;\r\n\r\nDatabase altered.\r\n\r\nidle>select * from v$flash_recovery_area_usage;\r\n\r\nFILE_TYPE               PERCENT_SPACE_USED PERCENT_SPACE_RECLAIMABLE NUMBER_OF_FILES     CON_ID\r\n----------------------- ------------------ ------------------------- --------------- ----------\r\nCONTROL FILE                             0                         0               0          0\r\nREDO LOG                                 0                         0               0          0\r\nARCHIVED LOG                           .22                         0               7          0\r\nBACKUP PIECE                           .01                         0               1          0\r\nIMAGE COPY                               0                         0               0          0\r\nFLASHBACK LOG                          1.5                         0               2          0\r\nFOREIGN ARCHIVED LOG                     0                         0               0          0\r\nAUXILIARY DATAFILE COPY                  0                         0               0          0\r\n\r\nOn Primary:\r\n\r\nDGMGRL> edit database orclstby set state='apply-on';\r\nSucceeded.\r\n\r\n<\/pre>\n","protected":false},"excerpt":{"rendered":"<p>1. Stop redo to standby 2. Set flashback off on standby 3. Set flashback on on standby 4. Start redo apply to standby On standby idle>select * from v$flash_recovery_area_usage; FILE_TYPE PERCENT_SPACE_USED PERCENT_SPACE_RECLAIMABLE NUMBER_OF_FILES CON_ID &#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8211; &#8212;&#8212;&#8212;&#8212;&#8212;&#8212; &#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;- &#8212;&#8212;&#8212;&#8212;&#8212; &#8212;&#8212;&#8212;- CONTROL FILE 0 0 0 0 REDO LOG 0 0 0 0 ARCHIVED LOG .16 0&hellip;&nbsp;<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"neve_meta_sidebar":"","neve_meta_container":"","neve_meta_enable_content_width":"","neve_meta_content_width":0,"neve_meta_title_alignment":"","neve_meta_author_avatar":"","neve_post_elements_order":"","neve_meta_disable_header":"","neve_meta_disable_footer":"","neve_meta_disable_title":"","pgc_sgb_lightbox_settings":"","footnotes":""},"categories":[28],"tags":[],"class_list":["post-670","post","type-post","status-publish","format-standard","hentry","category-oracle-technical"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Oracle - Flashback - set off and on to purge standby database flashback log files - dbafox<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/dbafox.com\/?p=670\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Oracle - Flashback - set off and on to purge standby database flashback log files - dbafox\" \/>\n<meta property=\"og:description\" content=\"1. 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