安装Oracle RAC使用NFS作为共享存储

　　1.The /etc/hosts file must contain the following information.

　　127.0.0.1 localhost.localdomain   localhost

　　# Public

　　192.168.2.101   rac1.localdomain  rac1

　　192.168.2.102   rac2.localdomain  rac2

　　#Private

　　192.168.0.101   rac1-priv.localdomain   rac1-priv

　　192.168.0.102   rac2-priv.localdomain   rac2-priv

　　#Virtual

　　192.168.2.111   rac1-vip.localdomain    rac1-vip

　　192.168.2.112   rac2-vip.localdomain    rac2-vip

　　#NAS

　　192.168.2.101   nas1.localdomain  nas1

　　2.create shared disks

　　First we need to set up some NFS shares. In this case we will do this on the RAC1 node, but you can do the on a NAS or a third server if you have one available. On the RAC1 node create the following directories.

　　mkdir /share1

　　mkdir /share2Add the following lines to the /etc/exports file.

　　/share1      *(rw,sync,no_wdelay,insecure_locks,no_root_squash)

　　/share2      *(rw,sync,no_wdelay,insecure_locks,no_root_squash)Run the following command to export the NFS shares.

　　chkconfig nfs on

　　service nfs restartOn both RAC1 and RAC2 create some mount points to mount the NFS shares to.

　　mkdir /u01

　　mkdir /u02Add the following lines to the "/etc/fstab" file. The mount options are suggestions from Kevin Closson.

　　nas1:/share1  /u01  nfs  rw,bg,hard,nointr,tcp,vers=3,timeo=300,rsize=32768,wsize=32768,actimeo=0  0 0

　　nas1:/share2  /u02  nfs  rw,bg,hard,nointr,tcp,vers=3,timeo=300,rsize=32768,wsize=32768,actimeo=0  0 0Mount the NFS shares on both servers.

　　mount /u01

　　mount /u02Create the shared CRS Configuration and Voting Disk files.

　　touch /u01/crs_configuration

　　touch /u01/voting_diskCreate the directories in which the Oracle software will be installed.

　　mkdir -p /u01/crs/oracle/product/10.2.0/crs

　　mkdir -p /u01/app/oracle/product/10.2.0/db_1

　　mkdir -p /u01/oradata

　　chown -R oracle:oinstall /u01 /u02