#copy ora files
cd /usr/oracle/app/oracle/admin/orcl/pfile
ls
cp init.ora.313202010110 /usr/oracle/app/oracle/product/11.2.0/dbhome_1/dbs/initORCL.ora

#Modify memory size
mount -o remount,size=13G /dev/shm
vim /etc/fstab
tmpfs /dev/shm tmpfs defaults,size=13G 0 0

#Delete system processes
cd /usr/oracle/app/oracle/product/11.2.0/dbhome_1/dbs
ls sgadef*
ls lk*
rm lk*
ipcs -s
ipcrm -s 65537
ipcrm -s ……

#Launch process
su – oracle
sqlplus “/as sysdba”

//shutdown immediate
startup

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