Due to bug 9446443, automatic OCR backups are incorrectly owned which is preventing CRSD from overwriting them.
Expected ownership and permission on Linux - all 7 of them:
-rw------- 1 root root 11640832 Aug 30 08:46 backup00.ocr
-rw------- 1 root root 11640832 Aug 30 04:46 backup01.ocr
-rw------- 1 root root 11640832 Aug 30 00:46 backup02.ocr
-rw------- 1 root root 11640832 Aug 30 00:46 day_.ocr
-rw------- 1 root root 11640832 Aug 29 00:46 day.ocr
-rw------- 1 root root 11640832 Aug 26 00:45 week_.ocr
-rw------- 1 root root 11640832 Aug 19 00:44 week.ocr
有一个BUG，bug 9446443 is fixed in 11.2.0.2, 12.1.
It's recommended to apply patch to fix the issue, but if patch is unavailable, workaround is to change ownership and permission of all 7 automatic backup files manually. OCR should be owned by root, but depend on platform, group may or may not be root - you can check any randomly named backup file to identify what ownership and permission it should have; in example below:
-rw------- 1 root root 7143424 Aug 30 09:40 38455890.ocr
With this, please change all 7 automatic backup files to be owned by root:root with permission "-rw-------"
根据文档介绍，再结合自己的坏境的情况，查看对应crs的操作日志：
2016-03-16 06:24:59.079: [UiServer][12081]{1:19564:21073} Done for ctx=11191c2f0
2016-03-16 06:25:54.968: [ OCRRAW][3599]th_delete_backupfile: Failed to delete the backup file [/grid/product/11.2.0/gridhome_1/cdata/c4bidb-cluster/backup02.ocr] Retval:[-2]
2016-03-16 06:25:54.968: [ OCRSRV][3599]th_delete_backupfile: Failed to delete the backup file:[backup02.ocr] Location:[/grid/product/11.2.0/gridhome_1/cdata/c4bidb-cluster]
2016-03-16 06:25:55.026: [ OCRRAW][3599]proprbkp_rename: Failed to rename the backup file [/grid/product/11.2.0/gridhome_1/cdata/c4bidb-cluster/backup01.ocr] Retval:[1]
2016-03-16 06:25:55.026: [ OCRSRV][3599]th_rename_backupfile: Failed to rename the backup file:[backup01.ocr] Location:[/grid/product/11.2.0/gridhome_1/cdata/c4bidb-cluster]. Retval:[49]
2016-03-16 06:25:55.030: [ OCRRAW][3599]proprbkp_rename: Failed to rename the backup file [/grid/product/11.2.0/gridhome_1/cdata/c4bidb-cluster/backup00.ocr] Retval:[1]
2016-03-16 06:25:55.030: [ OCRSRV][3599]th_rename_backupfile: Failed to rename the backup file:[backup00.ocr] Location:[/grid/product/11.2.0/gridhome_1/cdata/c4bidb-cluster]. Retval:[49]
2016-03-16 06:25:55.033: [ OCRRAW][3599]proprbkp_rename: Failed to rename the backup file [/grid/product/11.2.0/gridhome_1/cdata/c4bidb-cluster/16654495.ocr] Retval:[1]
2016-03-16 06:25:55.033: [ OCRSRV][3599]th_rename_backupfile: Failed to rename the backup file:[16654495.ocr] Location:[/grid/product/11.2.0/gridhome_1/cdata/c4bidb-cluster]. Retval:[49]
2016-03-16 06:25:55.036: [ OCRSRV][3599]th_manipulate_backups: Failed to rename the temporary backup file [16654495.ocr].