rm -rf /u01/app/oraInventory/*
rm -rf /u01/app/12.1.0/grid/*
rm -rf /u01/app/grid/*
rm -rf /u01/app/oracle/product/*
rm -rf /etc/oracle/*
rm /etc/oraInst.loc
rm /etc/oratab
rm /var/tmp/.oracle/*
./rootcrs.pl -verbose -deconfig -force
./rootcrs.pl -verbose -deconfig -force -lastnode
dd if=/dev/zero of=/dev/sdb1 bs=1024 count=100
dd if=/dev/zero of=/dev/sdb2 bs=1024 count=100
dd if=/dev/zero of=/dev/sdb3 bs=1024 count=100
dd if=/dev/zero of=/dev/sdc1 bs=1024 count=100
dd if=/dev/zero of=/dev/sdc2 bs=1024 count=100
dd if=/dev/zero of=/dev/sdd1 bs=1024 count=100
dd if=/dev/zero of=/dev/sdd2 bs=1024 count=100
Remove and create the ASM disk for each partition.
/etc/init.d/oracleasm deletedisk /dev/sdb1
/etc/init.d/oracleasm deletedisk /dev/sdb2
/etc/init.d/oracleasm deletedisk /dev/sdb3
/etc/init.d/oracleasm deletedisk /dev/sdc1
/etc/init.d/oracleasm deletedisk /dev/sdc2
/etc/init.d/oracleasm deletedisk /dev/sdd1
/etc/init.d/oracleasm deletedisk /dev/sdd2
/etc/init.d/oracleasm createdisk GI_D1 /dev/sdb1
/etc/init.d/oracleasm createdisk GI_D2 /dev/sdb2
/etc/init.d/oracleasm createdisk GI_D3 /dev/sdb3
