oracle 11g alter database drop logfile member 一例

本地环境，instance起不来，查看Log:

Errors in file /xxx/diag/rdbms/xx/xx/trace/xx_ora_28731.trc:

ORA-16038: log 8 sequence# 208 cannot be archived

ORA-19504: failed to create file ""

ORA-00312: online log 8 thread 2: '+DG_REDO_XXX/xx/redo08.log'

ORA-00312: online log 8 thread 2: '/dev/raw/raw18'

查看v$logfile:

GROUP# STATUS TYPE MEMBER IS_

---------- ------- ------- ---------------------------------------- ---

1 ONLINE +DG_REDO_XXXXXX/xxxxxx/redo01.log NO

2 ONLINE +DG_REDO_XXXXXX/xxxxxx/redo02.log NO

3 ONLINE +DG_REDO_XXXXXX/xxxxxx/redo03.log NO

4 ONLINE +DG_REDO_XXXXXX/xxxxxx/redo04.log NO

5 ONLINE +DG_REDO_XXXXXX/xxxxxx/redo05.log NO

6 ONLINE +DG_REDO_XXXXXX/xxxxxx/redo06.log NO

7 ONLINE +DG_REDO_XXXXXX/xxxxxx/redo07.log NO

8 ONLINE +DG_REDO_XXXXXX/xxxxxx/redo08.log NO

1 ONLINE /dev/raw/raw11 NO

2 INVALID ONLINE /dev/raw/raw12 NO

3 INVALID ONLINE /dev/raw/raw13 NO

4 INVALID ONLINE /dev/raw/raw14 NO

5 ONLINE /dev/raw/raw15 NO

6 ONLINE /dev/raw/raw16 NO

7 ONLINE /dev/raw/raw17 NO

8 ONLINE /dev/raw/raw18 NO

于是打算删掉raw。

alter database clear unarchived logfile group 1;

alter database clear unarchived logfile group 2;

alter database clear unarchived logfile group 3;

alter database clear unarchived logfile group 4;

alter database drop logfile member '/dev/raw/raw11';

alter database drop logfile member '/dev/raw/raw12';

alter database drop logfile member '/dev/raw/raw13';

alter database drop logfile member '/dev/raw/raw14';

alter database drop logfile member '/dev/raw/raw15';

alter database drop logfile member '/dev/raw/raw16';

alter database drop logfile member '/dev/raw/raw17';

alter database drop logfile member '/dev/raw/raw18';

当前还是mount状态。

SQL> alter database open;