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oracle修改redo大小

刪除組群
alter database drop logfile group 1;
alter database drop logfile group 2;
alter database drop logfile group 3;


通過作業系統刪除老的redo01.log、redo02.log、redo03.log
rm -rf redo01.log、redo02.log、redo03.log


重建redo01.log、redo02.log、redo03.log
alter database add logfile group 1 '/home/oracle/app/oracle/oradata/soc/redo01.log' size 500M;
alter database add logfile group 2 '/home/oracle/app/oracle/oradata/soc/redo02.log' size 500M;
alter database add logfile group 3 '/home/oracle/app/oracle/oradata/soc/redo03.log' size 500M;