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1.forcing log switches
sql> alter system switch logfile;
 
2.forcing checkpoints
sql> alter system checkpoint;
 
3.adding online redo log groups
sql> alter database add logfile [group 4]
sql> ('/disk3/log4a.rdo','/disk4/lo ......

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Error : Please change the CRS_ORACLE_USER id <oracle> to have the following OS capabilities :
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su - oracle
sqlplus /nolog
conn /as sysdba
startup
exit
lsnrctl start
exit
2. linuxϹرÕoracle
su - oracle
sqlplus /nolog
conn /as sysdba
shutdown immediate
exit
lsnrctl stop
exit
3¡¢Æô¶¯¼àÌýÆ÷
oracle@suse92:~> lsnrctl start
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