Oracle 11g RAC 卸载CRS步骤

Oracle 11g之后提供了卸载grid和database的脚本，可以卸载的比较干净，不需要手动删除crs

##########如果要卸载RAC，需要先使用dbca删除数据库，在执行下面的操作###############

1.root用户进入到grid的ORACLE_HOME(在最后一个节点以外的所有节点执行，如果只有两个节点的RAC那么只在主节点上执行即可)

说明：（如果没有从官网上下载）

1.从oracle官方网站上下载的deinstall工具

11GR2有7个下载包，deinstall放在第7个下载包，如11.2.0.2的下载包为p10098816_112020_AIX64-5L_7of7.zip

2.解压到本地目录,并执行deinstall

需要输入$ORACLE_HOME

bash-3.00$ ./deinstall -home /oracle/grid/product/11.2.0/grid

Location of logs /ora11g/server_install/deinstall/./logs/

主节点root用户执行：

[root@testdb11a ~]# cd /u01/app/11.2./grid/crs/install/    ----Grid用户的ORACLE_HOME目录/crs/install

[root@testdb11a install]# ./rootcrs.pl -verbose -deconfig -force

Using configuration parameter file: ./crsconfig_params

Network exists: /192.168.1.0/255.255.255.0/eth0, type static

VIP exists: /testdb11a-vip/192.168.1.22/192.168.1.0/255.255.255.0/eth0, hosting node testdb11a

GSD exists

ONS exists: Local port , remote port , EM port

CRS-: Attempting to stop 'ora.registry.acfs' on 'testdb11a'

CRS-: Stop of 'ora.registry.acfs' on 'testdb11a' succeeded

CRS-: Starting shutdown of Oracle High Availability Services-managed resources on 'testdb11a'

CRS-: Attempting to stop 'ora.crsd' on 'testdb11a'

CRS-: Starting shutdown of Cluster Ready Services-managed resources on 'testdb11a'

CRS-: Attempting to stop 'ora.oc4j' on 'testdb11a'

CRS-: Attempting to stop 'ora.DATA.dg' on 'testdb11a'

CRS-: Stop of 'ora.oc4j' on 'testdb11a' succeeded

CRS-: Stop of 'ora.DATA.dg' on 'testdb11a' succeeded

CRS-: Attempting to stop 'ora.asm' on 'testdb11a'

CRS-: Stop of 'ora.asm' on 'testdb11a' succeeded

CRS-: Shutdown of Cluster Ready Services-managed resources on 'testdb11a' has completed

CRS-: Stop of 'ora.crsd' on 'testdb11a' succeeded

CRS-: Attempting to stop 'ora.mdnsd' on 'testdb11a'

CRS-: Attempting to stop 'ora.drivers.acfs' on 'testdb11a'

CRS-: Attempting to stop 'ora.crf' on 'testdb11a'

CRS-: Attempting to stop 'ora.ctssd' on 'testdb11a'

CRS-: Attempting to stop 'ora.evmd' on 'testdb11a'

CRS-: Attempting to stop 'ora.asm' on 'testdb11a'

CRS-: Stop of 'ora.crf' on 'testdb11a' succeeded

CRS-: Stop of 'ora.evmd' on 'testdb11a' succeeded

CRS-: Stop of 'ora.mdnsd' on 'testdb11a' succeeded

CRS-: Stop of 'ora.ctssd' on 'testdb11a' succeeded

CRS-: Stop of 'ora.drivers.acfs' on 'testdb11a' succeeded

CRS-: Stop of 'ora.asm' on 'testdb11a' succeeded

CRS-: Attempting to stop 'ora.cluster_interconnect.haip' on 'testdb11a'

CRS-: Stop of 'ora.cluster_interconnect.haip' on 'testdb11a' succeeded

CRS-: Attempting to stop 'ora.cssd' on 'testdb11a'

CRS-: Stop of 'ora.cssd' on 'testdb11a' succeeded

CRS-: Attempting to stop 'ora.gipcd' on 'testdb11a'

CRS-: Stop of 'ora.gipcd' on 'testdb11a' succeeded

CRS-: Attempting to stop 'ora.gpnpd' on 'testdb11a'

CRS-: Stop of 'ora.gpnpd' on 'testdb11a' succeeded

CRS-: Shutdown of Oracle High Availability Services-managed resources on 'testdb11a' has completed

CRS-: Oracle High Availability Services has been stopped.

Successfully deconfigured Oracle clusterware stack on this node

[root@testdb11a install]# ./crsconfig_params

最后一个节点执行：（下面的命令将清空OCR配置和Voting disk）

[root@testdb11b install]# ./rootcrs.pl -verbose -deconfig -force -lastnode

Using configuration parameter file: ./crsconfig_params

Network exists: /192.168.1.0/255.255.255.0/eth0, type static

VIP exists: /testdb11b-vip/192.168.1.23/192.168.1.0/255.255.255.0/eth0, hosting node testdb11b

GSD exists

ONS exists: Local port , remote port , EM port

CRS-: Attempting to stop 'ora.registry.acfs' on 'testdb11b'

CRS-: Stop of 'ora.registry.acfs' on 'testdb11b' succeeded

CRS-: Attempting to stop 'ora.crsd' on 'testdb11b'

CRS-: Starting shutdown of Cluster Ready Services-managed resources on 'testdb11b'

CRS-: Attempting to stop 'ora.DATA.dg' on 'testdb11b'

CRS-: Attempting to stop 'ora.oc4j' on 'testdb11b'

CRS-: Stop of 'ora.oc4j' on 'testdb11b' succeeded

CRS-: Stop of 'ora.DATA.dg' on 'testdb11b' succeeded

CRS-: Attempting to stop 'ora.asm' on 'testdb11b'

CRS-: Stop of 'ora.asm' on 'testdb11b' succeeded

CRS-: Shutdown of Cluster Ready Services-managed resources on 'testdb11b' has completed

CRS-: Stop of 'ora.crsd' on 'testdb11b' succeeded

CRS-: Attempting to stop 'ora.ctssd' on 'testdb11b'

CRS-: Attempting to stop 'ora.evmd' on 'testdb11b'

CRS-: Attempting to stop 'ora.asm' on 'testdb11b'

CRS-: Stop of 'ora.evmd' on 'testdb11b' succeeded

CRS-: Stop of 'ora.ctssd' on 'testdb11b' succeeded

CRS-: Stop of 'ora.asm' on 'testdb11b' succeeded

CRS-: Attempting to stop 'ora.cluster_interconnect.haip' on 'testdb11b'

CRS-: Stop of 'ora.cluster_interconnect.haip' on 'testdb11b' succeeded

CRS-: Attempting to stop 'ora.cssd' on 'testdb11b'

CRS-: Stop of 'ora.cssd' on 'testdb11b' succeeded

CRS-: Attempting to start 'ora.cssdmonitor' on 'testdb11b'

CRS-: Start of 'ora.cssdmonitor' on 'testdb11b' succeeded

CRS-: Attempting to start 'ora.cssd' on 'testdb11b'

CRS-: Attempting to start 'ora.diskmon' on 'testdb11b'

CRS-: Start of 'ora.diskmon' on 'testdb11b' succeeded

CRS-: Start of 'ora.cssd' on 'testdb11b' succeeded

CRS-: Successful deletion of voting disk +DATA.

ASM de-configuration trace file location: /tmp/asmcadc_clean2014--17_10---AM.log

ASM Clean Configuration START

ASM Clean Configuration END

ASM with SID +ASM1 deleted successfully. Check /tmp/asmcadc_clean2014--17_10---AM.log for details.

CRS-: Starting shutdown of Oracle High Availability Services-managed resources on 'testdb11b'

CRS-: Attempting to stop 'ora.mdnsd' on 'testdb11b'

CRS-: Attempting to stop 'ora.ctssd' on 'testdb11b'

CRS-: Attempting to stop 'ora.cluster_interconnect.haip' on 'testdb11b'

CRS-: Stop of 'ora.mdnsd' on 'testdb11b' succeeded

CRS-: Stop of 'ora.cluster_interconnect.haip' on 'testdb11b' succeeded

CRS-: Stop of 'ora.ctssd' on 'testdb11b' succeeded

CRS-: Attempting to stop 'ora.cssd' on 'testdb11b'

CRS-: Stop of 'ora.cssd' on 'testdb11b' succeeded

CRS-: Attempting to stop 'ora.crf' on 'testdb11b'

CRS-: Stop of 'ora.crf' on 'testdb11b' succeeded

CRS-: Attempting to stop 'ora.gipcd' on 'testdb11b'

CRS-: Stop of 'ora.gipcd' on 'testdb11b' succeeded

CRS-: Attempting to stop 'ora.gpnpd' on 'testdb11b'

CRS-: Stop of 'ora.gpnpd' on 'testdb11b' succeeded

CRS-: Shutdown of Oracle High Availability Services-managed resources on 'testdb11b' has completed

CRS-: Oracle High Availability Services has been stopped.

Successfully deconfigured Oracle clusterware stack on this node

执行完成上面的两个命令后，oracle的数据库软件也就删除了，就可以重新执行root.sh脚本了~~~

如果使用了asm磁盘，需要先清理asm磁盘，因为尝试了一次安装，你的ASM磁盘就被标记为used，不能再作为候选磁盘，要想再次使用，需要执行下面的操作

a.使用dd命令覆盖分区的头部信息

dd if=/dev/zero of=/dev/sdb1 bs= count=

dd if=/dev/zero of=/dev/sdc1 bs= count=

dd if=/dev/zero of=/dev/sdd1 bs= count=

dd if=/dev/zero of=/dev/sde1 bs= count=

b.删除并重建asm磁盘

/etc/init.d/oracleasm deletedisk DISK1 /dev/sdb1

/etc/init.d/oracleasm createdisk DISK1 /dev/sdb1

/etc/init.d/oracleasm deletedisk DISK2 /dev/sdc1

/etc/init.d/oracleasm createdisk DISK2 /dev/sdc1

/etc/init.d/oracleasm deletedisk DISK3 /dev/sdd1

/etc/init.d/oracleasm createdisk DISK3 /dev/sdd1

/etc/init.d/oracleasm deletedisk DISK4 /dev/sde1

/etc/init.d/oracleasm createdisk DISK4 /dev/sde1

执行完上面的命令后，asm磁盘就可以用了

如果要彻底卸载Grid Infrastructure软件，执行下面的命令

2.grid用户执行deinstall进行卸载（两个节点）

主节点执行结果：

+ASM1@testdb11a  /u01/app/11.2./grid/deinstall$ ./deinstall

Checking for required files and bootstrapping ...

Please wait ...

Location of logs /tmp/deinstall2014--16_01--52PM/logs/

############ ORACLE DEINSTALL & DECONFIG TOOL START ############

######################### CHECK OPERATION START #########################

## [START] Install check configuration ##

Checking for existence of the Oracle home location /u01/app/11.2./grid

Oracle Home type selected for deinstall is: Oracle Grid Infrastructure for a Cluster

Oracle Base selected for deinstall is: /u01/app/grid

Checking for existence of central inventory location /u01/app/oraInventory

Checking for existence of the Oracle Grid Infrastructure home

The following nodes are part of this cluster: testdb11a,testdb11b

Checking for sufficient temp space availability on node(s) : 'testdb11a,testdb11b'

## [END] Install check configuration ##

Traces log file: /tmp/deinstall2014--16_01--52PM/logs//crsdc.log

Enter an address or the name of the virtual IP used on node "testdb11a"[testdb11a-vip]

 > 

The following information can be collected by running "/sbin/ifconfig -a" on node "testdb11a"

Enter the IP netmask of Virtual IP "192.168.1.22" on node "testdb11a"[255.255.255.0]

 > 

Enter the network interface name on which the virtual IP address "192.168.1.22" is active

 > 

Enter an address or the name of the virtual IP used on node "testdb11b"[testdb11b-vip]

 > 

The following information can be collected by running "/sbin/ifconfig -a" on node "testdb11b"

Enter the IP netmask of Virtual IP "192.168.1.23" on node "testdb11b"[255.255.255.0]

 > 

Enter the network interface name on which the virtual IP address "192.168.1.23" is active

 > 

Enter an address or the name of the virtual IP[]

 > 

Network Configuration check config START

Network de-configuration trace file location: /tmp/deinstall2014--16_01--52PM/logs/netdc_check2014--16_01---PM.log

Specify all RAC listeners (do not include SCAN listener) that are to be de-configured [LISTENER_SCAN1]:

Network Configuration check config END

Asm Check Configuration START

ASM de-configuration trace file location: /tmp/deinstall2014--16_01--52PM/logs/asmcadc_check2014--16_01---PM.log

ASM configuration was not detected in this Oracle home. Was ASM configured in this Oracle home (y|n) [n]: y

Is OCR/Voting Disk placed in ASM y|n [n]: y

Enter the OCR/Voting Disk diskgroup name []:

Specify the ASM Diagnostic Destination [ ]:

Specify the diskstring []:

Specify the diskgroups that are managed by this ASM instance []: 

######################### CHECK OPERATION END #########################

####################### CHECK OPERATION SUMMARY #######################

Oracle Grid Infrastructure Home is:

The cluster node(s) on which the Oracle home deinstallation will be performed are:testdb11a,testdb11b

Oracle Home selected for deinstall is: /u01/app/11.2./grid

Inventory Location where the Oracle home registered is: /u01/app/oraInventory

Following RAC listener(s) will be de-configured: LISTENER_SCAN1

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/deinstall2014-09-16_01-45-52PM/logs/deinstall_deconfig2014-09-16_01-46-31-PM.out'

Any error messages from this session will be written to: '/tmp/deinstall2014-09-16_01-45-52PM/logs/deinstall_deconfig2014-09-16_01-46-31-PM.err'

######################## CLEAN OPERATION START ########################

ASM de-configuration trace file location: /tmp/deinstall2014--16_01--52PM/logs/asmcadc_clean2014--16_01---PM.log

ASM Clean Configuration START

ASM Clean Configuration END

Network Configuration clean config START

Network de-configuration trace file location: /tmp/deinstall2014--16_01--52PM/logs/netdc_clean2014--16_01---PM.log

De-configuring RAC listener(s): LISTENER_SCAN1

De-configuring listener: LISTENER_SCAN1

    Stopping listener: LISTENER_SCAN1

    Warning: Failed to stop listener. Listener may not be running.

Listener de-configured successfully.

De-configuring Naming Methods configuration file on all nodes...

Naming Methods configuration file de-configured successfully.

De-configuring Local Net Service Names configuration file on all nodes...

Local Net Service Names configuration file de-configured successfully.

De-configuring Directory Usage configuration file on all nodes...

Directory Usage configuration file de-configured successfully.

De-configuring backup files on all nodes...

Backup files de-configured successfully.

The network configuration has been cleaned up successfully.

Network Configuration clean config END

---------------------------------------->

The deconfig command below can be executed in parallel on all the remote nodes. Execute the command on  the local node after the execution completes on all the remote nodes.

Run the following command as the root user or the administrator on node "testdb11b".

/tmp/deinstall2014-09-16_01-45-52PM/perl/bin/perl -I/tmp/deinstall2014-09-16_01-45-52PM/perl/lib -I/tmp/deinstall2014-09-16_01-45-52PM/crs/install /tmp/deinstall2014-09-16_01-45-52PM/crs/install/rootcrs.pl -force  -deconfig -paramfile "/tmp/deinstall2014-09-16_01-45-52PM/response/deinstall_Ora11g_gridinfrahome1.rsp"

Run the following command as the root user or the administrator on node "testdb11a".

/tmp/deinstall2014-09-16_01-45-52PM/perl/bin/perl -I/tmp/deinstall2014-09-16_01-45-52PM/perl/lib -I/tmp/deinstall2014-09-16_01-45-52PM/crs/install /tmp/deinstall2014-09-16_01-45-52PM/crs/install/rootcrs.pl -force  -deconfig -paramfile "/tmp/deinstall2014-09-16_01-45-52PM/response/deinstall_Ora11g_gridinfrahome1.rsp" -lastnode

Press Enter after you finish running the above commands

<----------------------------------------

打开另外一个终端窗口，在节点1和节点二下root用户执行上面的两条命令

节点一

[root@testdb11a ~]# /tmp/deinstall2014--16_01--52PM/perl/bin/perl -I/tmp/deinstall2014--16_01--52PM/perl/lib -I/tmp/deinstall2014--16_01--52PM/crs/install /tmp/deinstall2014--16_01--52PM/crs/install/rootcrs.pl -force -deconfig -paramfile "/tmp/deinstall2014-09-16_01-45-52PM/response/deinstall_Ora11g_gridinfrahome1.rsp" -lastnode

Using configuration parameter file: /tmp/deinstall2014--16_01--52PM/response/deinstall_Ora11g_gridinfrahome1.rsp

Adding Clusterware entries to inittab

/crs/install/inittab does not exist.

****Unable to retrieve Oracle Clusterware home.

Start Oracle Clusterware stack and try again.

****Unable to retrieve Oracle Clusterware home.

Start Oracle Clusterware stack and try again.

****Unable to retrieve Oracle Clusterware home.

Start Oracle Clusterware stack and try again.

****Unable to retrieve Oracle Clusterware home.

Start Oracle Clusterware stack and try again.

****Unable to retrieve Oracle Clusterware home.

Start Oracle Clusterware stack and try again.