10g下怎么增加或者删除ocr磁盘？
在10g中，如果在安装cluster时，如果选择external redundancy那么ocr只能选择一个磁盘，但是通过命令行我们依然可以添加新的磁盘到ocr。如果我们需要替换现有的ocr磁盘，那么必须同时存在两份ocr磁盘才可以，即primary ocr和mirror ocr同时存在时，才可以替换primary ocr或者mirror ocr。
操作实例：
[root@node1 bin]# ocrcheck
Status of Oracle Cluster Registry is as follows :
Version : 2
Total space (kbytes) : 1125736
Used space (kbytes) : 3852
Available space (kbytes) : 1121884
ID : 849560479
Device/File Name : /dev/raw/raw1
Device/File integrity check succeeded
Device/File not configured
Cluster registry integrity check succeeded
[root@node1 bin]# ocrconfig -replace ocr /dev/raw/raw3
PROT-16: Internal Error
[root@node1 bin]# ocrconfig -replace ocrmirror /dev/raw/raw4
[root@node1 bin]# ocrcheck
Status of Oracle Cluster Registry is as follows :
Version : 2
Total space (kbytes) : 1125736
Used space (kbytes) : 3852
Available space (kbytes) : 1121884
ID : 849560479
Device/File Name : /dev/raw/raw1
Device/File integrity check succeeded
Device/File Name : /dev/raw/raw4
Device/File integrity check succeeded
Cluster registry integrity check succeeded
[root@node1 bin]# ocrconfig -replace ocr /dev/raw/raw3
[root@node1 bin]# ocrcheck
Status of Oracle Cluster Registry is as follows :
Version : 2
Total space (kbytes) : 1125736
Used space (kbytes) : 3852
Available space (kbytes) : 1121884
ID : 849560479
Device/File Name : /dev/raw/raw3
Device/File integrity check succeeded
Device/File Name : /dev/raw/raw4
Device/File integrity check succeeded
Cluster registry integrity check succeeded
[root@node1 bin]# crsctl check crs
CSS appears healthy
CRS appears healthy
EVM appears healthy
[root@node1 bin]# ssh node2 /u01/app/crs_home/bin/ocrcheck
Warning: Permanently added the RSA host key for IP address '192.168.100.32' to the list of known hosts.
root@node2's password:
Status of Oracle Cluster Registry is as follows :
Version : 2
Total space (kbytes) : 1125736
Used space (kbytes) : 3852
Available space (kbytes) : 1121884
ID : 849560479
Device/File Name : /dev/raw/raw3
Device/File integrity check succeeded
Device/File Name : /dev/raw/raw4
Device/File integrity check succeeded
Cluster registry integrity check succeeded
[root@node1 bin]# ssh node2 cat /etc/oracle/ocr.loc
root@node2's password:
#Device/file /dev/raw/raw1 getting replaced by device /dev/raw/raw3
ocrconfig_loc=/dev/raw/raw3
ocrmirrorconfig_loc=/dev/raw/raw4
local_only=false
新增或者删除orc最好在所有节点都在线时进行，否则会出现节点信息不同步的情况，
例如：如果在节点node2关闭时，在节点node1进行ocr删除操作，结果如下
[root@node1 bin]# ssh node2 /u01/app/crs_home/bin/crsctl stop crs
root@node2's password:
Permission denied, please try again.
root@node2's password:
Stopping resources. This could take several minutes.
Successfully stopped CRS resources.
Stopping CSSD.
Shutting down CSS daemon.
Shutdown request successfully issued.
[root@node1 bin]# ssh node2 /u01/app/crs_home/bin/crsctl check crs
root@node2's password:
Failure 1 contacting CSS daemon
Cannot communicate with CRS
Cannot communicate with EVM
[root@node1 bin]# ./ocrcheck
Status of Oracle Cluster Registry is as follows :
Version : 2
Total space (kbytes) : 1125736
Used space (kbytes) : 3852
Available space (kbytes) : 1121884
ID : 849560479
Device/File Name : /dev/raw/raw3
Device/File integrity check succeeded
Device/File Name : /dev/raw/raw4
Device/File integrity check succeeded
Cluster registry integrity check succeeded
[root@node1 bin]# ./ocrconfig -replace ocrmirror
[root@node1 bin]# ./ocrcheck
Status of Oracle Cluster Registry is as follows :
Version : 2
Total space (kbytes) : 1125736
Used space (kbytes) : 3852
Available space (kbytes) : 1121884
ID : 849560479
Device/File Name : /dev/raw/raw3
Device/File integrity check succeeded
Device/File not configured
Cluster registry integrity check succeeded
[root@node1 bin]# cat /etc/oracle/ocr.loc
#Device/file /dev/raw/raw4 being deleted
ocrconfig_loc=/dev/raw/raw3
local_only=false[root@node1 bin]# ssh node2 cat /etc/oracle/ocr.loc
root@node2's password:
Permission denied, please try again.
root@node2's password:
#Device/file /dev/raw/raw1 getting replaced by device /dev/raw/raw3
ocrconfig_loc=/dev/raw/raw3
ocrmirrorconfig_loc=/dev/raw/raw4
local_only=false[root@node1 bin]# ssh node2 /u01/app/crs_home/bin/crsctl start crs
root@node2's password:
Attempting to start CRS stack
The CRS stack will be started shortly
[root@node1 bin]# ssh node2 /u01/app/crs_home/bin/crsctl check crs
root@node2's password:
Failure 1 contacting CSS daemon
Cannot communicate with CRS
Cannot communicate with EVM
[root@node1 bin]# ssh node2 /u01/app/crs_home/bin/ocrconfig -repair ocrmirror
root@node2's password:
[root@node1 bin]# ssh node2 cat /etc/oracle/ocr.loc
root@node2's password:
#Device/file /dev/raw/raw4 being deleted
ocrconfig_loc=/dev/raw/raw3
local_only=false[r
[root@node1 bin]# ssh node2 /u01/app/crs_home/bin/crsctl start crs
root@node2's password:
Attempting to start CRS stack
The CRS stack will be started shortly
[root@node1 bin]# ssh node2 /u01/app/crs_home/bin/crsctl check crs
root@node2's password:
CSS appears healthy
CRS appears healthy
EVM appears healthy
结论：在增加、删除、替换ocr时，所有节点最好同时在线，在导入导出或者恢复ocr是，cluster节点需要关闭
如何添加/删除votedisk？
添加删除votedisk可以使用crsctl命令：
[root@node1 bin]# ./crsctl
Usage: crsctl check crs - checks the viability of the CRS stack
crsctl check cssd - checks the viability of CSS
crsctl check crsd - checks the viability of CRS
crsctl check evmd - checks the viability of EVM
crsctl set css <parameter> <value> - sets a parameter override
crsctl get css <parameter> - gets the value of a CSS parameter
crsctl unset css <parameter> - sets CSS parameter to its default
crsctl query css votedisk - lists the voting disks used by CSS
crsctl add css votedisk <path> - adds a new voting disk
crsctl delete css votedisk <path> - removes a voting disk
crsctl enable crs - enables startup for all CRS daemons
crsctl disable crs - disables startup for all CRS daemons
crsctl start crs - starts all CRS daemons.
crsctl stop crs - stops all CRS daemons. Stops CRS resources in case of cluster.
crsctl start resources - starts CRS resources.
crsctl stop resources - stops CRS resources.
crsctl debug statedump evm - dumps state info for evm objects
crsctl debug statedump crs - dumps state info for crs objects
crsctl debug statedump css - dumps state info for css objects
crsctl debug log css [module:level]{,module:level} ...
- Turns on debugging for CSS
crsctl debug log crs [module:level]{,module:level} ...
- Turns on debugging for CRS
crsctl debug log evm [module:level]{,module:level} ...
- Turns on debugging for EVM
crsctl debug log res <resname:level> turns on debugging for resources
crsctl query crs softwareversion [<nodename>] - lists the version of CRS software installed
crsctl query crs activeversion - lists the CRS software operating version
crsctl lsmodules css - lists the CSS modules that can be used for debugging
crsctl lsmodules crs - lists the CRS modules that can be used for debugging
crsctl lsmodules evm - lists the EVM modules that can be used for debugging
If necesary any of these commands can be run with additional tracing by
adding a "trace" argument at the very front.
Example: crsctl trace check css
首先在线添加：
[root@node1 bin]# ./crsctl add css votedisk /dev/raw/raw4
Cluster is not in a ready state for online disk addition
[root@node1 bin]# ./crsctl add css votedisk /dev/raw/raw4 -force
Now formatting voting disk: /dev/raw/raw4
successful addition of votedisk /dev/raw/raw4.
[root@node1 bin]# ./crsctl check crs
CSS appears healthy
CRS appears healthy
EVM appears healthy
[root@node1 bin]# ./crsctl query css votedisk
0. 0 /dev/raw/raw2
1. 0 /dev/raw/raw4
located 2 votedisk(s).
[root@node1 bin]# ssh node2 /u01/app/crs_home/bin/crsctl query css votedisk
root@node2's password:
0. 0 /dev/raw/raw2
1. 0 /dev/raw/raw4
located 2 votedisk(s).
[root@node1 bin]# ./crsctl stop crs
Stopping resources. This could take several minutes.
Successfully stopped CRS resources.
Stopping CSSD.
Shutting down CSS daemon.
Shutdown request successfully issued.
[root@node1 bin]# ssh node2 /u01/app/crs_home/bin/crsctl stop crs
root@node2's password:
Stopping resources. This could take several minutes.
Successfully stopped CRS resources.
Stopping CSSD.
Shutting down CSS daemon.
Shutdown request successfully issued.
[root@node1 bin]# ./crsctl start crs
Attempting to start CRS stack
The CRS stack will be started shortly
[root@node1 bin]# ssh node2 /u01/app/crs_home/bin/crsctl start crs
root@node2's password:
Attempting to start CRS stack
The CRS stack will be started shortly
[root@node1 bin]# ./crs_stat -t -v
Name Type R/RA F/FT Target State Host
----------------------------------------------------------------------
ora....SM1.asm application 0/5 0/0 ONLINE ONLINE node1
ora....E1.lsnr application 0/5 0/0 ONLINE ONLINE node1
ora.node1.gsd application 0/5 0/0 ONLINE ONLINE node1
ora.node1.ons application 0/3 0/0 ONLINE ONLINE node1
ora.node1.vip application 0/0 0/0 ONLINE ONLINE node1
ora....SM2.asm application 0/5 0/0 ONLINE ONLINE node2
ora....E2.lsnr application 0/5 0/0 ONLINE ONLINE node2
ora.node2.gsd application 0/5 0/0 ONLINE ONLINE node2
ora.node2.ons application 0/3 0/0 ONLINE ONLINE node2
ora.node2.vip application 0/0 0/0 ONLINE ONLINE node2
ora.racdb.db application 0/1 0/1 ONLINE ONLINE node1
ora....b1.inst application 0/5 0/0 ONLINE OFFLINE
ora....b2.inst application 0/5 0/0 ONLINE ONLINE node2
删除操作不再演示
看来在线添加votedisk是可以成功的，在10g下需要使用 -force选项，但是网上有资料表示：在添加或者删除votedisk时，最好停掉所有应用。