ORA-03113: end-of-file on communication channel

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今天打开自己电脑上的RHEL6.5单机11.2.0.4的数据库时报错：

SQL> startupORACLE instance started.Total System Global Area  413372416 bytesFixed Size                  2253784 bytesVariable Size             327158824 bytesDatabase Buffers           79691776 bytesRedo Buffers                4268032 bytesDatabase mounted.ORA-03113: end-of-file on communication channelProcess ID: 2420Session ID: 1 Serial number: 5

OK，开始解决：

查看alert日志：

Errors in file /u01/app/oracle/diag/rdbms/single1/single1/trace/single1_ora_2669.trc:ORA-19815: WARNING: db_recovery_file_dest_size of 2116026368 bytes is 100.00% used, and has 0 remaining bytes available.

同时，alert日志中还有解决建议：

************************************************************************You have following choices to free up space from recovery area:1. Consider changing RMAN RETENTION POLICY. If you are using Data Guard,   then consider changing RMAN ARCHIVELOG DELETION POLICY.2. Back up files to tertiary device such as tape using RMAN   BACKUP RECOVERY AREA command.3. Add disk space and increase db_recovery_file_dest_size parameter to   reflect the new space.4. Delete unnecessary files using RMAN DELETE command. If an operating   system command was used to delete files, then use RMAN CROSSCHECK and   DELETE EXPIRED commands.************************************************************************

那就解决：

SQL> conn / as sysdbaConnected to an idle instance.SQL> startup nomountORACLE instance started.Total System Global Area  413372416 bytesFixed Size                  2253784 bytesVariable Size             327158824 bytesDatabase Buffers           79691776 bytesRedo Buffers                4268032 bytesSQL> alter database mount;Database altered.

操作系统删掉了归档（注意备份软件对于归档的应用）

rman下crosscheck然后delete。

SQL> alter database open;Database altered.

搞定！！

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