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 passed
...
Checking OCR integrity...
OCR integrity check passed
Checking Oracle Cluster Voting Disk configuration...
Oracle Cluster Voting Disk configuration check passed
Check: Time zone consistency
Result: Time zone consistency check passed
...
Pre-check for node addition was unsuccessful on all the nodes.
[grid@jystdrac1 ~]$
我的环境在这里的检查项中，需要注意的主要就是确认目录的属主和权限：
[root@jystdrac2 opt]# ls -ld /opt/app
drwxr-xr-x. 3 root oinstall 4096 May 25 23:20 /opt/app
[root@jystdrac2 opt]# chown grid:oinstall /opt/app
[root@jystdrac2 opt]# chmod 775 /opt/app
[root@jystdrac2 opt]# ls -ld /opt/app
drwxrwxr-x. 3 grid oinstall 4096 May 25 23:20 /opt/app
2.3 GI添加节点
2.3 To extend the Grid Infrastructure home to the node3, navigate to the Grid_home/oui/bin directory on node1 and run the addNode.sh script using the following syntax, where node3 is the name of the node that you are adding and node3-vip is the VIP name for the node:
我这里实验就是 jystdrac2（没有使用GNS）：
[grid@jystdrac1 bin]$ pwd
/opt/app/11.2.0/grid/oui/bin
[grid@jystdrac1 bin]$ ls
addLangs.sh addNode.sh attachHome.sh detachHome.sh filesList.bat filesList.properties filesList.sh lsnodes resource runConfig.sh runInstaller runInstaller.sh runSSHSetup.sh
$ ./addNode.sh "CLUSTER_NEW_NODES={jystdrac2}" "CLUSTER_NEW_VIRTUAL_HOSTNAMES={jystdrac2-vip}"
--下面这条命令是错误的，无法跳过添加节点前的检查：
--$ ./addNode.sh -force -ignorePrereq -ignoreSysPrereqs "CLUSTER_NEW_NODES={jystdrac2}" "CLUSTER_NEW_VIRTUAL_HOSTNAMES={jystdrac2-vip}"
最终确认正确跳过添加节点检查的方法是设置IGNORE_PREADDNODE_CHECKS变量（这里我耽误了一些时间，尝试了Oracle惯用的ignorePrereq和ignoreSysPrereqs发现都不对）：
export IGNORE_PREADDNODE_CHECKS=Y
echo $IGNORE_PREADDNODE_CHECKS
$ ./addNode.sh "CLUSTER_NEW_NODES={jystdrac2}" "CLUSTER_NEW_VIRTUAL_HOSTNAMES={jystdrac2-vip}"
正常添加GI节点的输出如下：
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