记录一些之前Oracle Linux 6.3安装RAC 11.2.0.3没有碰到的问题及解决。
1.配置对等性出错：
使用sshusersetup.sh脚本配置对等性：
./sshusersetup.sh -user grid -hosts rac2 rac1 -advanced -verbose，配置成功。
问题：rac1上ssh rac2可以，但是在rac2上ssh rac1还是需要密码，并且报错Agent admitted failure to sign using the key.。
解决：在rac1使用ssd-add ~/.ssh/id_rsa把私钥添加进去就好了。
2.刚安装完成之后重启虚拟机，发生脑裂，并且发现私网不通。
问题：CRS报错CRS-4000，并且私网不通。
解决：私网网关配置错误，需要配置成公网一样的网关。（血泪教训啊，卸载GI重装几次，一直没注意）
3.安装报错INS-20802 update Inventory failed
问题：查看lsnrctl status报错：
Message 1053 not found; No message file for product=network, facility=TNSMessage 1020 not found; No message file for product=network, facility=TNSMessage 1021 not found; No message file for product=network, facility=TNSMessage 1022 not found; No message file for product=network, facility=TNSMessage 1023 not found; No message file for product=network, facility=TNSMessage 1026 not found; No message file for product=network, facility=TNSMessage 1034 not found; No message file for product=network, facility=TNSMessage 1024 not found; No message file for product=network, facility=TNSMessage 1025 not found; No message file for product=network, facility=TNSMessage 1040 not found; No message file for product=network, facility=TNSMessage 1033 not found; No message file for product=network, facility=TNSMessage 1028 not found; No message file for product=network, facility=TNSMessage 1415 not found; No message file for product=network, facility=TNS Message 1050 not found; No message file for product=network, facility=TNS
Message 1050 not found; No message file for product=network, facility=TNS
Message 1050 not found; No message file for product=network, facility=TNS
Message 1029 not found; No message file for product=network, facility=TNSMessage 1411 not found; No message file for product=network, facility=TNS
Message 1408 not found; No message file for product=network, facility=TNS
Message 1052 not found; No message file for product=network, facility=TNS
解决：配置正确的ORACLE_HOME。
4.Not All Endpoints Registered
问题：查看crsctl stat res -t，监听后面提示Not All Endpoints Registered
解决：使用srvctl命令重启监听：
srvctl stop listener -n <node name>
srvctl stop scan_listener -i 1（节点数字）
5.虚拟机休眠，然后启动之后网络设置会很卡，并且私网不通。
问题：service network restart报错Error: Connection activation failed: Device not managed by NetworkManager or unavailabl
解决：chkconfig NetworkManager off
service NetworkManager stop
chkconfig network on
service network start
7.安装DB软件报错：
An internal error occurred within cluster verification framework
Unable to obtain network interface list from Oracle
ClusterwarePRCT-1011: Failed to run “oifcfg”. Detailed error: null
由于配置了环境变量，建议去掉环境变量安装，安装过程中再配置环境变量。