omp peer [-refnode ref_node] -n node_list [-orainv orainventory_group] [-osdba osdba_group] [-verbose]
For the reference node, select a cluster node against which you want CVU to compare, for example, the nodes that you want to add that you specify with the -n option.
检查新加节点有哪些设置不匹配：
# su - grid
$ cluvfy comp peer -refnode jystdrac1 -n jystdrac2 -verbose
我的环境没有问题。
2.正式添加节点
2.1 确认环境
2.1 Ensure that you have successfully installed Oracle Clusterware on at least one node in your cluster environment. To perform the following procedure, Grid_home must identify your successfully installed Oracle Clusterware home.
确认在你的集群环境中至少有一个节点成功安装了Oracle Clusterware。下面步骤中的GRID_HOME指的是安装Oracle Clusterware的目录。
2.2 验证添加节点
2.2 Verify the integrity of the cluster and node3:
$ cluvfy stage -pre nodeadd -n node3 [-fixup [-fixupdir fixup_dir]] [-verbose]
$ cluvfy stage -pre nodeadd -n jystdrac2 -fixup -fixupdir /tmp/fixupdir -verbose
截取部分检查结果如下（为节省篇幅，大部分passed的检查项都已删减掉）:
[grid@jystdrac1 ~]$ cluvfy stage -pre nodeadd -n jystdrac2 -fixup -fixupdir /tmp/fixupdir -verbose
Performing pre-checks for node addition
Checking node reachability...
...
Checking CRS home location...
PRVG-1013 : The path "/opt/app/11.2.0/grid" does not exist or cannot be created on the nodes to be added
Result: Shared resources check for node addition failed
Interface information for node "jystdrac1"
Name IP Address Subnet Gateway Def. Gateway HW Address MTU
------ --------------- --------------- --------------- --------------- ----------------- ------
eth2 192.168.1.61 192.168.1.0 0.0.0.0 UNKNOWN 08:00:27:E7:88:48 1500
eth2 192.168.1.62 192.168.1.0 0.0.0.0 UNKNOWN 08:00:27:E7:88:48 1500
eth2 192.168.1.65 192.168.1.0 0.0.0.0 UNKNOWN 08:00:27:E7:88:48 1500
eth3 10.10.10.61 10.10.10.0 0.0.0.0 UNKNOWN 08:00:27:83:CC:56 1500
eth3 169.254.203.60 169.254.0.0 0.0.0.0 UNKNOWN 08:00:27:83:CC:56 1500
Interface information for node "jystdrac2"
Name IP Address Subnet Gateway Def. Gateway HW Address MTU
------ --------------- --------------- --------------- --------------- ----------------- ------
eth2 192.168.1.63 192.168.1.0 0.0.0.0 UNKNOWN 08:00:27:0C:E1:B1 1500
eth3 10.10.10.63 10.10.10.0 0.0.0.0 UNKNOWN 08:00:27:B1:1B:CE 1500
Checking for multiple users with UID value 0
Result: Check for multiple users with UID value 0 passed
Check: Current group ID
Result: Current group ID check p