1， 在节点hsedb1上将卷组信息导出：
[hsedb1:/]#vgchange –a n vg_ops
[hsedb1:/]#vgexport -v -p -s -m /tmp/vg_ops.map /dev/vg_ops
[hsedb1:/]#rcp /tmp/vg_ops.map hsedb2:/tmp/vg_ops.map
[hsedb1:/]#rcp /tmp/vg_ops.map hsedb3:/tmp/vg_ops.map
[hsedb1:/]#rcp /tmp/vg_ops.map hsedb4:/tmp/vg_ops.map
2， 在其他节点将vg_ops的信息导入：
[hsedb2:/]#mkdir /dev/vg_ops
[hsedb2:/]#mknod /dev/vg_ops/group c 64 0x010000
[hsedb2:/]#vgimport –v –s –m /tmp/vg_ops.map vg_ops
[hsedb3:/]#mkdir /dev/vg_ops
[hsedb3:/]#mknod /dev/vg_ops/group c 64 0x010000
[hsedb3:/]#vgimport –v –s –m /tmp/vg_ops.map vg_ops
[hsedb4:/]#mkdir /dev/vg_ops
[hsedb4:/]#mknod /dev/vg_ops/group c 64 0x010000
[hsedb4:/]#vgimport –v –s –m /tmp/vg_ops.map vg_ops
3， 在每台主机上编辑/etc/lvmrc文件，将文件中参数AUTO_VG_ACTIVATE由系统默认的1修改为0，这样做的目的是防止共享卷组在系统启动的时候被自动激活。
四、oracle用户及dba用户组的建立：
分别在四个节点上创建oracle用户及dba用户组，为后续oracle RAC的安装作准备：
[hsedb1:/]#groupadd –g 200 dba
[hsedb1:/]#useradd –u 300 –g 200 –d /home/oracle –m oracle
[hsedb2:/]#groupadd –g 200 dba
[hsedb2:/]#useradd –u 300 –g 200 –d /home/oracle –m oracle
[hsedb3:/]#groupadd –g 200 dba
[hsedb3:/]#useradd –u 300 –g 200 –d /home/oracle –m oracle
[hsedb4:/]#groupadd –g 200 dba
[hsedb4:/]#useradd –u 300 –g 200 –d /home/oracle –m oracle
通过查看/etc/passwd及/etc/group进行确认：
