RAC

ssh-keygen -t rsa
ssh-keygen -t dsa

touch ~/.ssh/authorized_keys

ssh rac1 cat /home/oracle/.ssh/id_rsa.pub >> authorized_keys
ssh rac1 cat /home/oracle/.ssh/id_dsa.pub >> authorized_keys
ssh rac2 cat /home/oracle/.ssh/id_rsa.pub >> authorized_keys
ssh rac2 cat /home/oracle/.ssh/id_dsa.pub >> authorized_keys



[root@rac1 /]# mkdir /oinstalltemp
[root@rac1 /]# chmod 755 /oinstalltemp/
[root@rac1 /]# TEMP=/oinstalltemp/
[root@rac1 /]# TMPDIR=/oinstalltemp/
[root@rac1 /]# export TEMP TMPDIR


kernel.sem = 250 32000 100 128
kernel.shmmax = 1054093312
kernel.shmmni = 4096
kernel.shmall = 2097152
fs.file-max = 65536
net.ipv4.ip_local_port_range = 1024 65000
net.core.rmem_default = 262144
net.core.rmem_max = 262144
net.core.wmem_default = 262144
net.core.wmem_max = 262144

ORACLE BASE HOME
mkdir -p /u200/app/oracle
chown -R oracle:oinstall /u200/app/oracle/
chmod -R 755 /u200/app/oracle/

ORACLE CLUSTERWARE HOME
mkdir -p /u200/crs/oracle/product/10/crs
chown -R root:oinstall /u200/crs/
chmod -R 775 /u200/crs/oracle/