重新配置与卸载11gR2 Grid Infrastructure

重新配置与卸载11gR2 Grid Infrastructure

 

      Oracle 11g R2 Grid Infrastructure 的安装与配置较之前的版本提供了更多的灵活性。在Grid Infrastructure安装完毕前执行root.sh经常容易出现错误，并且需要修复该错误才能得以继续。

 

在这个版本中我们可以直接通过执行脚本rootcrs.pl来重新配置Grid Infrastructure而无需先卸载Grid Infrastructure，然后修复故障后进行再次安装。下面描述了rootcrs.pl的用法以及使用deinstall彻底卸载Grid Infrastructure。

 

1、rootcrs.pl命令介绍

[python] 
#命令位置:$GRID_HOME/crs/install  
#命令说明:  
#  该命令主要是用于对crs进行维护与管理，包括patch,upgrade,downgrade,deconfig等等  
#  perldoc rootcrs.pl执行这个命令获得完整的介绍  
[root@linux1 install]# ./rootcrs.pl -h  
Unknown option: h  
Usage:  
      rootcrs.pl [-verbose] [-upgrade | -patch] [-hahome <directory>]  
                 [-paramfile <parameter-file>]   
                 [-deconfig | -downgrade] [-force] [-lastnode]  
                 [-downgrade] [-oldcrshome <old crshome path>] [-version <old crs version>]    
                 [-unlock [-crshome <path to crs home>]]  
  
      Options:  
       -verbose    Run this script in verbose mode  
       -upgrade    Oracle HA is being upgraded from previous version  
       -patch      Oracle HA is being upgraded to a patch version  
       -hahome     Complete path of Oracle Clusterware home  
       -paramfile  Complete path of file specifying HA parameter values  
       -lastnode   Force the node this is executing on to be considered the  
                   last node of the install and perform actions associated  
                   with configurig the last node  
       -downgrade  Downgrade the clusterware  
       -version    For use with downgrade; special handling is required if  
                   downgrading to 9i. This is the old crs version in the format  
                   A.B.C.D.E (e.g 11.1.0.6.0).  
       -deconfig   Remove Oracle Clusterware to allow it to be uninstalled or reinstalled.  
       -force      Force the executon of steps in delete that cannot be verified   
                   to be safe  
       -unlock     Unlock CRS home   
       -crshome    Complete path of crs home. Use with unlock option.  
       -oldcrshome For use with downgrade. Complete path of the old crs home.  
  
      If neither -upgrade nor -patch is supplied, a new install is performed  
  
      To see the full manpage for this program, execute:  
        perldoc rootcrs.pl       
#对于执行root.sh失败时，我们可以通过该命令以-deconfig 参数来清除crs的配置信息，然后根据log修复故障或使用patch之后再重新执行root.sh
#对于该命令的patch,upgrade,downgrade用法再此不作详细介绍

 

 

2、重新配置Grid Infrastructure及ASM

[python] 
#重新配置Grid Infrastructure并不会移除已经复制的二进制文件，仅仅是回复到配置crs之前的状态，下面是其步骤  
  
a、使用root用户登录，并执行下面的命令(所有节点，但最后一个节点除外)  
  # perl $GRID_HOME/crs/install/rootcrs.pl -verbose -deconfig -force  
    
b、同样使用root用户在最后一个节点执行下面的命令。该命令将清空ocr 配置和voting disk    
  # perl $GRID_HOME/crs/install/rootcrs.pl -verbose -deconfig -force -lastnode  
  
c、如果使用了ASM磁盘，继续下面的操作以使得ASM重新作为候选磁盘(清空所有的ASM磁盘组)  
  # dd if=/dev/zero of=/dev/sdb1 bs=1024 count=100  
  # /etc/init.d/oracleasm deletedisk DATA /dev/sdb1  
  # /etc/init.d/oracleasm createdisk DATA /dev/sdb1  

 

3、彻底删除Grid Infrastructure

[python] 
#11g R2 Grid Infrastructure也提供了彻底卸载的功能，deinstall该命令取代了使用OUI方式来清除clusterware以及ASM，回复到安装grid之前的环境。  
#该命令将停止集群，移除二进制文件及其相关的所有配置信息。  
#命令位置:$GRID_HOME/deinstall  
#下面是该命令操作的具体事例，操作期间，需要提供一些交互信息，以及在新的session以root身份清除一些/tmp下的文件  
[root@linux1 bin]# ./crsctl check crs  
CRS-4638: Oracle High Availability Services is online  
CRS-4537: Cluster Ready Services is online  
CRS-4529: Cluster Synchronization Services is online  
CRS-4533: Event Manager is online  
[root@linux1 bin]# cd ../deinstall/  
[root@linux1 deinstall]# pwd  
/u01/app/11.2.0/grid/deinstall  
[root@linux1 deinstall]# ./deinstall  
You must not be logged in as root to run ./deinstall.  
Log in as Oracle user and rerun ./deinstall.  
[root@linux1 deinstall]# su grid  
[grid@linux1 deinstall]$ ./deinstall  
Checking for required files and bootstrapping ...  
Please wait ...  
Location of logs /tmp/deinstall2013-07-16_05-54-03-PM/logs/  
  
############ ORACLE DEINSTALL & DECONFIG TOOL START ############  
  
######################## CHECK OPERATION START ########################  
Install check configuration START  
  
Checking for existence of the Oracle home location /u01/app/11.2.0/grid  
Oracle Home type selected for de-install is: CRS  
Oracle Base selected for de-install is: /u01/app/grid  
Checking for existence of central inventory location /u01/app/oraInventory  
Checking for existence of the Oracle Grid Infrastructure home /u01/app/11.2.0/grid  
The following nodes are part of this cluster: linux1,linux2  
  
Install check configuration END  
  
Traces log file: /tmp/deinstall2013-07-16_05-54-03-PM/logs//crsdc.log  
  
Network Configuration check config START  
  
Network de-configuration trace file location: /tmp/deinstall2013-07-16_05-54-03-PM/logs/netdc_check207506844451155733.log  
  
Network Configuration check config END  
  
Asm Check Configuration START  
  
ASM de-configuration trace file location: /tmp/deinstall2013-07-16_05-54-03-PM/logs/asmcadc_check2698133635629979531.log  
  
ASM configuration was not detected in this Oracle home. Was ASM configured in this Oracle home (y|n) [n]: y  
Automatic Storage Management (ASM) instance is detected in this Oracle home /u01/app/11.2.0/grid.  
ASM Diagnostic Destination : /u01/app/grid  
ASM Diskgroups : +DATA  
Diskgroups will be dropped  
De-configuring ASM will drop all the diskgroups and it's contents at cleanup time. This will affect all of the databases and ACFS   
  that use this ASM instance(s).  
 If you want to retain the existing diskgroups or if any of the information detected is incorrect, you can modify by entering 'y'.   
 Do you  want to modify above information (y|n) [n]:   
  
######################### CHECK OPERATION END #########################  
  
####################### CHECK OPERATION SUMMARY #######################  
Oracle Grid Infrastructure Home is: /u01/app/11.2.0/grid  
The cluster node(s) on which the Oracle home exists are: (Please input nodes seperated by ",", eg: node1,node2,...)linux1,linux2  
Oracle Home selected for de-install is: /u01/app/11.2.0/grid  
Inventory Location where the Oracle home registered is: /u01/app/oraInventory  
ASM instance will be de-configured from this Oracle home  
Do you want to continue (y - yes, n - no)? [n]: y  
A log of this session will be written to: '/tmp/deinstall2013-07-16_05-54-03-PM/logs/deinstall_deconfig2013-07-16_05-54-37-PM.out'  
Any error messages from this session will be written to: '/tmp/deinstall2013-07-16_05-54-03-PM/logs/deinstall_deconfig2013-07-16_05-54-37-PM.err'  
  
######################## CLEAN OPERATION START ########################  
ASM de-configuration trace file location: /tmp/deinstall2013-07-16_05-54-03-PM/logs/asmcadc_clean3319637107726750003.log  
ASM Clean Configuration START  
ASM Clean Configuration END  
  
Network Configuration clean config START  
  
Network de-configuration trace file location: /tmp/deinstall2013-07-16_05-54-03-PM/logs/netdc_clean9055263637610505743.log  
  
De-configuring Naming Methods configuration file on all nodes...  
Naming Methods configuration file de-configured successfully.  
  
De-configurin