oracle rac增加节点报错三例

问题一：增加节点进行检查时报错：

./runcluvfy.sh stage -pre nodeadd -n xxx -verbose

Checking CRS home location...

PRVG-1013 : The path "/testapptest/oragrid/11.2.0" does not exist or cannot be created on the nodes to be added

Result: Shared resources check for node addition failed

解决方法：

因为其它条件都符合，且这个path是存在正确的，设置以下环境变量后，直接进入加节点操作

export IGNORE_PREADDNODE_CHECKS=Y 

问题二：

在自动增加第三节点实例时，报下面错：

dbca -silent -addInstance -nodeList xxxx -gdbName ver -instanceName ver3 -sysDBAUserName sys -sysDBAPassword '密码'

ORA-02494: invalid or missing maximum file size in MAXSIZE clause

解决方法：

检查修改数据文件的maxsize大小由unlimited改为具体值，或取消自动增长

问题三：

启动实例报错：srvctl start instance -d ver -i ver3

PRCR-1013 : Failed to start resource ora.ver.db

PRCR-1064 : Failed to start resource ora.ver.db on node miuu246

CRS-2640: Required resource 'ora.REDODG1.dg' is missing.

分析：原因为前面有手工drop了三个没有在用的asm磁盘组，而crs信息没有更新引起报错

解析：

查看crs依赖的磁盘组：

crsctl status res ora.ver.db -f

START_DEPENDENCIES=hard(ora.testDG1.dg,ora.testDG2.dg,ora.REDODG1.dg,ora.testDG3.dg,ora.REDO01.dg,ora.REDO02.dg,ora.REDODG01.dg) weak(type:ora.listener.type,global:type:ora.scan_listener.type,uniform:ora.ons,global:ora.gns) pullup(ora.testDG1.dg,ora.testDG2.dg,ora.REDODG1.dg,ora.testDG3.dg,ora.REDO01.dg,ora.REDO02.dg,ora.REDODG01.dg)

START_TIMEOUT=600

STATE_CHANGE_TEMPLATE=

STOP_DEPENDENCIES=hard(intermediate:ora.asm,shutdown:ora.testDG1.dg,shutdown:ora.testDG2.dg,shutdown:ora.REDODG1.dg,shutdown:ora.testDG3.dg,shutdown:ora.REDO01.dg,shutdown:ora.REDO02.dg,shutdown:ora.REDODG01.dg)

修改正确的磁盘组：

srvctl modify database -d ver -a "testDG1,testDG2,testDG3,REDODG01"