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在Oracle 10g中如何解决ORA-19815错误
问题：在备份Oracle10g时出现下面的错误:
ORA-19815: WARNING: db_recovery_file_dest_size of 2147483648 bytes is 100.00% used, and has 0 remaining bytes available. ************************************************************* You have the following choices to free up space from flash recovery area: 1. Consider changing your RMAN retention policy. If you are using dataguard, then consider changing your RMAN archivelog deletion policy. 2. Backu p files to tertiary device such as tape using the RMAN command BACKU P RECOVERY AREA. 3. Add disk space and increase the db_recovery_file_dest_size parameter to reflect the new space. 4. Delete unncessary files using the RMAN DELETE command. If an OS command was used to delete files, then use RMAN CROSSCHECK and DELETE EXPIRED commands. *************************************************************
此时flash_recovery_area已经手工释放空间，甚至切换到一个全新的磁盘，但问题依然没有办法解决。 解决过程如下：
首先，连接数据库查询：
$ sqlplus "/ as sysdba"
SQL*Plus: Release 10.1.0.2.0 - Production on Mon Mar 28 11:45:30 2005
Copyright (c) 1982, 2004, Oracle. All rights reserved.
Connected to: Oracle Database 10g Enterprise Edition Release 10.1.0.2.0 - 64bit Production With the Partitioning, OLAP and Data Mining options
SYS AS SYSDBA on 28-MAR-05 >set liesize 120 SP2-0158: unknown SET option "liesize" SYS AS SYSDBA on 28-MAR-05 >set linesize 120 SYS AS SYSDBA on 28-MAR-05 >SELEC T substr(name, 1, 30) name, space_limit AS quota, 2 space_used AS used, 3 space_reclaimable AS reclaimable, 4 number_of_files AS files 5 FROM v$recovery_file_dest ;
NAME QUOTA USED RECLAIMABLE FILES ---------------------------------- ---------- ---------- ----------- ---------- /data5/flash_recovery_area 2147483648 2144863232 0 227
在此处发现仍然记录了227个文件，但USED空间并未释放。
然后用rman登录数据库进行crosscheck：
$ rman target /
Recovery Manager: Release 10.1.0.2.0 - 64bit Production
Copyright (c) 1995, 2004, Oracle. All rights reserved.
connected to target database: EYGLE (DBID=1337390772)
RMAN> crosscheck archivelog all;
using target database controlfile instead of recovery catalog allocated channel: ORA_DISK_1 channel ORA_DISK_1: sid=144 devtype=DISK validation failed for archived log archive log filename=/opt/oracle/flash_recovery_area/EYGLE/ archivelog/2004_05_17/o1_mf_1_790_0bjq36ps_.arc recid=1 stamp=526401126 validation failed for archived log archive log filename=/opt/oracle/flash_recovery_area/EYGLE/ archivelog/2004_05_17/o1_mf_1_791_0bkbcy7x_.arc recid=2 stamp=526420862 validation failed for archived log archive log filename=/opt/oracle/flash_recovery_area/EYGLE/ archivelog/2004_05_17/o1_mf_1_792_0bkkds4d_.arc recid=3 stamp=526428057 ....... archive log filename=/opt/oracle/flash_recovery_area/EYGLE/ archivelog/2004_07_16/o1_mf_1_1014_0hh3zsrp_.arc recid=225 stamp=531678074 validation failed for archived log archive log filename=/opt/oracle/flash_recovery_area/EYGLE/ archivelog/2004_07_16/o1_mf_1_1015_0hh40qyp_.arc recid=226 stamp=531678104 validation failed for archived log archive log filename=/opt/oracle/flash_recovery_area/EYGLE/ archivelog/2004_07_16/o1_mf_1_1016_0hh41jqq_.arc recid=227 stamp=531678129 Crosschecked 227 objects
RMAN> delete expired archivelog all;
released channel: ORA_DISK_1 allocated channel: ORA_DISK_1 channel ORA_DISK_1: sid=144 devtype=DISK
List of Archived Log Copies Key Thrd Seq S Low Time Name ------- ---- ------- - --------- ---- 1 1 790 X 17-MAY-04 /opt/oracle/flash_recovery_area/EYGLE/ archivelog/2004_05_17/o1_mf_1_790_0bjq36ps_.arc 2 1 791 X 17-MAY-04 /opt/oracle/flash_recovery_area/EYGLE/ archivelog/2004_05_17/o1_mf_1_791_0bkbcy7x_.arc 3 1 792 X 17-MAY-04 /opt/oracle/flash_recovery_area/EYGLE/ archivelog/2004_05_17/o1_mf_1_792_0bkkds4d_.arc ....... 225 1 1014 X 16-JUL-04 /opt/oracle/flash_recovery_area/EYGLE/ archivelog/2004_07_16/o1_mf_1_1014_0hh3zsrp_.arc 226 1 1015 X 16-JUL-04 /opt/oracle/flash_recovery_area/EYGLE/ archivelog/2004_07_16/o1_mf_1_1015_0hh40qyp_.arc 227 1 1016 X 16-JUL-04 /opt/oracle/flash_recovery_area/EYGLE/ archivelog/2004_07_16/o1_mf_1_1016_0hh41jqq_.arc
Do you really want to delete the above objects (enter YES o r NO)? YES deleted archive log archive log filename=/opt/oracle/flash_recovery_area/EYGLE/ archivelog/2004_05_17/o1_mf_1_790_0bjq36ps_.arc recid=1 stamp=526401126 deleted archive log archive log filename=/opt/oracle/flash_recovery_area/EYGLE/ archivelog/2004_05_17/o1_mf_1_791_0bkbcy7x_.arc recid=2 stamp=526420862 deleted archive log ...... archive log filename=/opt/oracle/flash_recovery_area/EYGLE/ archivelog/2004_07_16/o1_mf_1_1014_0hh3zsrp_.arc recid=225 stamp=531678074 deleted archive log archive log filename=/opt/oracle/flash_recovery_area/EYGLE/ archivelog/2004_07_16/o1_mf_1_1015_0hh40qyp_.arc recid=226 stamp=531678104 deleted archive log archive log filename=/opt/oracle/flash_recovery_area/EYGLE/ archivelog/2004_07_16/o1_mf_1_1016_0hh41jqq_.arc recid=227 stamp=531678129 Deleted 227 EXPIRED objects
RMAN> exit
Recovery Manager complete.
此时空间得以释放:
$ sqlplus "/ as sysdba"
SQL*Plus: Release 10.1.0.2.0 - Production on Mon Mar 28 12:02:19 2005
Copyright (c) 1982, 2004, Oracle. All rights reserved.
Connected to: Oracle Database 10g Enterprise Edition Release 10.1.0.2.0 - 64bit Production With the Partitioning, OLAP and Data Mining options
SYS AS SYSDBA on 28-MAR-05 >SELEC T substr(name, 1, 30) name, space_limit AS quota, 2 space_used AS used, 3 space_reclaimable AS reclaimable, 4 number_of_files AS files 5 FROM v$recovery_file_dest ;
NAME QUOTA USED RECLAIMABLE FILES ---------------------------------------- ---------- ---------- ----------- ---------- /data5/flash_recovery_area 2147483648 9959424 0 1
SYS AS SYSDBA on 28-MAR-05 >
另一个解决方法： 通过执行下面的命令将闪回区的内容备份到第三方介质：
RMAN> backu p recovery area; 相关链接
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